Page 1 ORDER NO. MKE0706853CE Multi Media Display PT-50LCZ70 PT-56LCZ70 PT-61LCZ70 PT-50LCZ7 PT-56LCZ7 PT-61LCZ7 PT-50LCZ70-K PT-56LCZ70-K PT-61LCZ70-K Vol. 2 © 2007 Panasonic Shikoku Electronics Co., Ltd. All rights reserved. Unauthorized copying distribution is a violation of law.
Page 2: Table Of Contents
PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 CONTENTS Page Page 1 Service Navigation 9.1. SCHEMATIC DIAGRAM & CIRCUIT BOARD LAYOUT 1.1. Introduction NOTES 1.2. About Lead Free Solder (PbF) 9.2. MAIN SCHEMATIC DIAGRAMS 2 Service Mode 9.3.
Page 3: Service Navigation
PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 1 Service Navigation 1.1. Introduction This service manual contains technical information which will allow service personnel´s to understand and service this model. Please place orders using the parts list and not the drawing reference numbers.
Page 4: Service Mode
PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 2 Service Mode INDICATIONS FOR ERROR CONDITIONS Each Indicator facilitates finding the cause of an error. When an error is detected, the Lamp goes off and the indicators on the front flash.
Page 5 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 MAIN PARTS LOCATION <Front View> Power Switch /Operation P.C.B. Front Jack /Operation P.C.B. POWER LED LAMP LED SD/HDMI P.C.B. Front Cover Unit Front Door <Rear View> OPT/TV Unit RF AMP Front Fan Power Supply P.C.B.
Page 6 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 SERVICE ADJUST MODE Service Adjust Mode Enter: In this mode, the following information can be confirmed on the VOLUME DOWN button + RECALL key (3 times) (in power on condition)
Page 7 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 ADJUST 1/4~4/4 Perform the Contrast adjustment by pressing OK key when replacing EEPROM IC (IC8201). (Not used for service) 3 key 3 key 3 key 3 key A D J U S T...
Page 8 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 OPTION 1/3~3/3 Confirm the current elapsed “Lamp operation” time in hours, in hexadecimal. (limit: FFFF) Current elapsed "Lamp operation" time eg.) 01F5 501 hour 3 key 3 key O P T I O N...
Page 9 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 MMD-CHK 1/8~8/8 and internal pattern Perform the Picture Position adjustment by pressing VOL+/- key, and display the internal pattern for LCD-CHK, GC-CHK. 3 key 3 key 3 key 3 key...
Page 10 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 EEPROM IC (IC5504) CAUTION LAMP CAUTION The Lamp Unit becomes very hot during operation. When DO NOT copy any of data of EEPROM IC (IC5504) on the Main replacing the Lamp Unit, wait until it has cooled off (1 hour or P.C.B.
Page 11: Troubleshooting Guide
PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 3 Troubleshooting Guide 3.1. Troubleshooting Hints for Component Level Repair MAIN PARTS LOCATION <Front View> Power Switch /Operation P.C.B. Front Jack /Operation P.C.B. POWER LED LAMP LED SD/HDMI P.C.B.
Page 12 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 INDICATIONS FOR ERROR CONDITIONS Each Indicator facilitates finding the cause of an error. When an error is detected, the Lamp goes off and the indicators on the front flash.
Page 13: Abnormal Voltage (Dtv+9V Line)
PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 Protection Circuit SOS terminal of IC6004 (TV microcontroller) IC6004 (TV MICROCONTROLLER) IC4501 (AUDIO POWER AMP) AC STOP(L) Q4502 SOUND SOS (H) SOUND SOS (L) DTV+9V SENS (SOS(L)) IC1107 IC8001 (PEAKS) SUB+5V SENS (SOS(L)) REG.
Page 14: Abnormal Voltage (Sub+5V Line)
PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 [POWER Indicator three blinks] Abnormal voltage (SUB+5V line) detection circuit SUB+5V IC1107 IC6004 (TV MICROCONTROLLER) Normal REG. SUB+5V SENS SOS: 0V on SUB+5V line MAIN P.C.B. [POWER Indicator four blinks] Abnormal voltage (MAIN+3.3V line) detection circuit...
Page 15 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 [POWER Indicator nine blinks] Communication error between Peaks (IC8001) and TV microcontroller (IC6004) detection circuit IC6004 (TV MICROCONTROLLER) IC8001 (PEAKS) Normal PANEL STATUS (SOS (L)) PANEL STATUS (SOS (L)) MAIN P.C.B.
Page 16 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 [LAMP Indicator eight blinks] LAMP Fan stops detection circuit [LAMP Indicator nine blinks] OPT Fan stops detection circuit [LAMP Indicator ten blinks] Front Fan or Rear Fan stops detection circuit [LAMP Indicator eleven blinks] Rear Fan or Front Fan stops detection circuit [LAMP Indicator twelve blinks] Rear Jack P.C.B.
Page 17 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 AC stop detection circuit T801 D802 FULL-WAVE STBY+7V RECTIFIER IC6004 (TV MICROCONTROLLER) Normal Q803-Q805 D811 AC VOLTAGE AC STOP (L) DETECT POWER P.C.B. MAIN P.C.B. Over current detection circuit...
Page 18: Communication Error Between Peaks (Ic8001) And Tv Microcontroller (Ic6004)
PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 How to solve problems indicated by the Error Indication (The symptom of all errors is that the Lamp goes off) Note: Before performing troubleshooting, confirm that all connector cables in the unit are connected correctly.
Page 19: Rear Jack Pcb Connection Error
PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 How to solve problems indicated by the Error Indication (The symptom of all errors is that the Lamp goes off) Note: Before performing the troubleshooting, confirm that all connector cables in the unit are connected correctly.
Page 20 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 Note: LAMP DOES NOT LIGHT UP 1. Before performing troubleshooting, confirm that all connector cables are connected properly. 2. When repeating troubleshooting, be sure to Plug in the AC Cord.
Page 21 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 CHECKING THE POWER P.C.B. Disconnect all Power P.C.B. connector cables, then remove Power P.C.B. from the unit. Refer to Power P.C.B. Service Position, Figure 1. Check the following parts on the Power P.C.B. with the tester.
Page 22 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 Plug in the AC Cord. Check the voltage at the following points. Check the parts (Ref No. 800 series) on the Power P.C.B. and Between Pin 1 and Pin 2 of CN851: approx. +120 V replace any defective parts.
Page 23 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 Power P.C.B. Service Position AC Cord RL801 RL802 TP805 To AC outlet TP810 TP1001 CN1003 Pin9 of IC1001 jumper wire TP1002 (component side) Figure 1...
Page 24 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 CHECKING THE OPT/TV UNIT (MAIN P.C.B.) Take out the OPT/TV Unit without the Connectors CN3502, CN4501, CN5503 and CN8201 connected. Then, remove the Main PCB Shield Case Top. Refer to OPT/TV Unit (Main P.C.B.) Service Position, Figure 2.
Page 25 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 OPT/TV Unit (Main P.C.B.) Service Position High voltage generated. No connection No connection No connection OPT/TV Unit Test Points for checking the voltage on the Main P.C.B. TP1203 TP1109...
Page 26 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 LED on the Main P.C.B. for Digital CH - D8801: Sync Lock LED (When Sync of Digital packet (MPEG2) is locked by IC8802, it lights up in RED) - D8802: Error LED (When MPEG data has many errors (Block noise in screen), it flickers in RED.
Page 27: Service Fixture & Tools
PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 4 Service Fixture & Tools 4.1. Service Fixture and Tools LSEP3240A Relay PCB (LCD Panel) LSUA0062 LCD Panel Flat Extension Cable LCD Panel Flat Extension Cable Relay P.C.B. (LSEP3240A)
Page 28 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 RS232C Connecting tool LSUA0043 RS232C I/F Tool (For 2002 models (PT-40/45LC12)) Connect D-Sub 9 Pin Serial (RS232C) Cable to RS232C I/F Tool Note: RS232C Connecting tool which was included in the 2002 model...
Page 29: Service Position
PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 4.2. Service Position MAIN P.C.B. CHECK (1) It is possible to check the component side of the Main P.C.B./Drive P.C.B. The following original parts are not installed: Rear Jack Holder...
Page 30 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 MAIN P.C.B. CHECK (2) It is possible to check the foil side of the Main P.C.B./Drive P.C.B. For more details, See Fig. S2-1, S2-2 The following original parts are not installed:...
Page 31 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 MAIN P.C.B. CHECK (3) It is possible to check the component side of the Main P.C.B./Drive P.C.B. Note: Connections are the same as Fig. S2-2. For more details, See Fig. S2-1, S2-2 The following original parts are not installed: Relay PCB.s...
Page 32 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 MAIN P.C.B. CHECK (4) It is possible to perform the Polarizer adjustment. Note: Connections are the same as Fig. S2-3. For more details, See Fig. S2-1, S2-2 The following original parts are not installed:...
Page 33 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 Note for Service Position: 1. The optical parts will be exposed to the dust in the air when the Top Duct Unit is removed. It is strongly recommend that it should be done in a clean room.
Page 34 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 POWER P.C.B. CHECK It is possible to check the Power P.C.B. only with no load. Power P.C.B. Service Position AC Cord RL801 RL802 TP805 To AC outlet TP810 TP1001...
Page 35 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 Detailed View for Service Position Note: Take care not to apply excessive pressure to the LCD Panel FPC when servicing. LCD Panel FPC Relay PCB Relay PCB LCD Panel Flat...
Page 36 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 Detailed View for Service Position LCD Panel Flat Extension Cables (LSUA0062) CN2201 CN2001 Relay PCB (Drive side) CN2101 (LSEP3244A) CN2901 LVDS Cable (B to B) (K1PY31Y00003) 4 Pin Extension Cable...
Page 37: Replacement Procedures For Csp (Chip Size Package) Ic
PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 4.3. Replacement Procedures for CSP (Chip Size Package) IC IC Location Make sure to install IC in the correct position on the P.C.B. as shown. Main P.C.B. Pin 1 Index...
Page 38 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 Temperature Profile for Heat Resistance of CSP IC - IC2501 (CSP IC) on the Drive P.C.B. <Bottom View of IC2501> TEMPERATURE PROFILE FOR HEAT RESISTANCEOF THIS IC 10 ± 3 sec.
Page 39 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 - IC8001 (CSP IC) on the Main P.C.B. <Bottom View> TEMPERATURE PROFILE FOR HEAT RESISTANCE OF THIS IC 10+/-3 sec. 150 ~ 170 C 220 C 20 ~ 50 sec.
Page 40 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 - IC7101 (CSP IC) on the Main P.C.B. <Bottom View> TEMPERATURE PROFILE FOR HEAT RESISTANCEOF THIS IC 10 +/- 3 sec. 150 ~ 170 C 220 C 20 ~ 50 sec.
Page 41: Disassembly And Assembly Instructions
PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 5 Disassembly and Assembly Instructions 5.1. Optical Section DISASSEMBLY METHOD FOR OPTICAL UNIT When reassembling, perform the steps in reverse order. Bend, route and dress the wires as they were originally.
Page 42 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 4. 1) Disconnect Connectors CN2001, CN2101, CN2201 (LCD Flexible Flat Cable). 2) Remove the Drive P.C.B. by removing the 2 screws. (CN2901 is disconnected.) 5. 1) Remove the Drive Support Metal Plate by removing the 2 screws.
Page 43 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 6. Remove the Main PCB Shield Case Bottom by removing the screws. Main PCB Shield Case Bottom Fig. P1-3...
Page 44 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 REMOVAL OF THE POLARIZER UNITS 1. Remove the Main PCB and the Main PCB Shield Case Bottom. Refer to Steps 1~5 in "REMOVAL OF THE MAIN P.C.B. AND THE DRIVE P.C.B. FROM THE OPT/TV UNIT."...
Page 45 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 REMOVAL OF THE OPTICAL BLOCK UNIT (Projection Lens Unit and LCD/Prism Unit) 1. Remove the Main PCB Shield Case Top. Refer to Steps 1~3 in "REMOVAL OF THE MAIN P.C.B. AND THE DRIVE P.C.B. FROM THE OPT/TV UNIT."...
Page 46 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 REMOVAL OF THE FAN CASE UNIT (OPT FAN), THE P/S CONVERTER, THE INTEGRATOR 1 AND THE INTEGRATOR 2 1. Remove the Lamp Ass’y. Refer to Step d in "HOW TO REPLACE THE LAMP UNIT" in the service manual (Vol.1).
Page 47 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 6. Remove the Integrator Block Ass’y by removing the 4 screws. 7. 1) Remove the three Integrator 1 Springs by removing the 3 screws. 2) Remove the Integrator 1 from the Integrator Holder Unit.
Page 48 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 View A View B Integrator Holder Unit PS Springs Integrator 1 Springs P/S Converter Tabs of PS Holder Integrator 1 Spring See Reassembly Note 1 Reassembly Note 2: Move into the position so that it is touching the 4 portions.
Page 49: Measurements And Adjustments
PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 6 Measurements and Adjustments 6.1. Adjustment Procedures 2 TEST EQUIPMENT To do all of these electrical adjustments, the following equipment is required. 1. Video Pattern Generator (480i/1080p) 2. Plastic Tip Driver and Non-Metal Driver 3.
Page 50 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 INPUT TERMINAL INFORMATION CONTRAST ADJUSTMENT (Automatic Adjustment) PC Input Terminal Video Input 1 Terminal Note: When replacing the EEPROM IC (IC8201), perform this adjustment. 1. Enter the Service Adjust Mode. Then, press 1 key once on the remote to enter ADJUST 1/4 screen.
Page 51 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 SET UP for VCOM Adjustment: 1. 1) Remove the Rear Cover Unit. 2) Disconnect Connector CN6005 on the Main P.C.B. 3) Connect Connector CN6005 and PC (1) with the 8 Pin Extension Cable, the 7 Pin Extension Cable, the Relay PCB, the RS232C I/F Tool, the D-Sub 9 Pin Serial (RS232C) Cable.
Page 52 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 VCOM ADJUSTMENT PROCEDURES: 1. Supply 70% Red Horizontal signal. 2. Select "VCOM RED ADJUSTMENT" in menu. Purpose: 3. Adjust "VCOM RED ADJUSTMENT" by pressing 4( To set the optimum LCD common voltage.
Page 53 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 WHITE BALANCE ADJUSTMENT 1. Adjust R-CUT and B-CUT by pressing VOL+ or VOL - key so that the area around (A) becomes pure gray with no red or blue tint.
Page 54 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 (HD signal) 13. Set COLOR TEMP to COOL by pressing 7 key. 14. Copy the NORMAL values which were adjusted in steps Note: 11, 12. This method is for use with PC which has a 1080p video...
Page 55 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 POLARIZER ADJUSTMENT POLARIZER GREEN ADJUSTMENT 1. Loosen a Screw (A) of the Polarizer Green Unit. (Mechanical Adjustment) 2. Move the Polarizer Green Unit to the right and left so...
Page 56: Maintenance
PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 7 Maintenance 7.1. Cleaning Methods THE LCD PANEL OF THE OPTICAL BLOCK UNIT 1) Clean the surface of the LCD Panel of the LCD/Prism Unit with an air blower or wipe with a clean, or soft blush lightly.
Page 57: Block Diagrams
PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 8 Block Diagrams POWER SUPPLY BLOCK DIAGRAM POWER P.C.B. MAIN P.C.B. RUSH T1002 TP1102 TP1103 F801 CURRENT L802 PROTECTOR L1001 D1001 8A 125V R1026 C1002 SOUND+18V CN804-1 AC LINE...
Page 58 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 VIDEO SIGNAL PATH I BLOCK DIAGRAM VIDEO SIGNAL AUDIO SIGNAL REAR JACK P.C.B. MAIN P.C.B. JK3503 IC8001 (PEAKS) VIDEO OUT CN3501-18 CN3001-18 IC3001 (VIDEO SW) JK3504 COMPONENT CN3501-10 CN3001-10...
Page 59 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 VIDEO SIGNAL PATH II BLOCK DIAGRAM VIDEO SIGNAL AUDIO SIGNAL MAIN P.C.B. IC5501 (EEPROM) IC5510 (HDMI INTERFACE AD CONVERTER) IC5504 (EEPROM) MAIN+5V I2C SERIAL CLOCK I2C SERIAL CLOCK I2C SERIAL CLOCK...
Page 60 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 VIDEO SIGNAL PATH III BLOCK DIAGRAM VIDEO SIGNAL MAIN P.C.B. IC7101 (DIGITAL SIGNAL PROCESS) IC7119 (FPGA/LVDS TRANSMITTER) R DATA (8BIT) R DATA (8BIT) R7132,R7395 N1-N3,P2 R28,T28-T30, N2,N5,P2-P5, P3,T3,U2,U3 U28-U30,V30...
Page 61 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 VIDEO SIGNAL PATH IV BLOCK DIAGRAM VIDEO SIGNAL DRIVE P.C.B. IC2501 (LCD VIDEO PROCESS) LCD/PRISM UNIT LCD(R) G2,G4,H1-H4,J1-J4, K2,K4,L1-L4,M1-M4, CN2001-(14-23) N2,N4,P1-P4,R1-R4, IC2901 (LVDS RECEIVER) T2,T4,U1-U4,V1-V4, CN2001-(26-35) CN2001-(54-63) CN2001-(66-75) TA2+...
Page 62 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 AUDIO SIGNAL PATH BLOCK DIAGRAM AUDIO SIGNAL TUNER P.C.B. MAIN P.C.B. REAR JACK P.C.B. MAIN P.C.B. TU8970 (TUNER UNIT) IC4001 IC4501 SPEAKER (AUDIO DSP) (AUDIO POWER AMP) AUDIO(R) CN8970-5...
Page 63 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 SYSTEM CONTROL BLOCK DIAGRAM MAIN P.C.B. DRIVE P.C.B. IC5510 (HDMI INTERFACE/AD CONVERTER) IC8001 (MAIN MICROCONTROLLER) IC8201 (EEPROM) IC6004 (TV MICROCONTROLLER) I2C SERIAL CLOCK1 I2C SERIAL CLOCK1 I2C SERIAL CLOCK3 I2C SERIAL CLOCK3 SUB+3.3V...
Page 64 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7...
Page 65: Schematic Diagrams
PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 9 Schematic Diagrams 9.1. SCHEMATIC DIAGRAM & CIRCUIT BOARD LAYOUT NOTES 1. Important safety notice 3. Parts marked "PT" are not used in any models included Components identified by the sign have special in this service model.
Page 66: Main Schematic Diagrams
PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 9.2. MAIN SCHEMATIC DIAGRAMS MAIN I SCHEMATIC DIAGRAM VIDEO SIGNAL AUDIO SIGNAL IC8001 R8084 PT MN2WS0039A TO M X CLKOUT IC8001 MVCLK TO M VII VI1ENB IC8001 VI1ENB MCLK...
Page 67 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 MAIN II SCHEMATIC DIAGRAM VIDEO SIGNAL 1.8V_DDRI/F TO M I SUB3.3V DDR2 #0 IC8202 C3ABSG000039 (SDRAM) C8209 TO M I CH0DM0 IC8202 0.1u[KB] IC8202 IC8202 CH0DM1 TO M I...
Page 68 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 MAIN III SCHEMATIC DIAGRAM SUB3.3V SUB3.3V SUB5V R8519 R8520 EXB38V473JV EXB38V473JV AA_EA0 TO M I AA_EA1 R8426 TO M I AA_EA2 EXB38V560JV TO M I AA_EA3 TO M I...
Page 69 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 MAIN IV SCHEMATIC DIAGRAM CN1101 TO POWER P.C.B. CN1003 L1108 J0JHC0000031 C1156 0.1u[KB] C1238 0.1u[KB] C1159 0.1u[KB] L1110 J0JHC0000031 C1239 IC1107 0.1u[KB] C1158 0.1u[KB] L1114 J0JBC0000014 C0DBEYY00022 TP1122 TP1123 C1157 0.1u[KB]...
Page 70 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 MAIN V SCHEMATIC DIAGRAM AUDIO SIGNAL JS4001 0 R4041 JS4502 JS4002 0 R4040 JS4503 JS4003 0 JS4504 JS4505 L4004 TO M IV, M VI JS4506 AG_DTV_+1.5V_ON 263 G1C101KA0055 100u...
Page 71 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 MAIN VI SCHEMATIC DIAGRAM MAIN3.3V SUB5V DTV9V SUB3.3V STB5V MAIN5V STB3.3V C6031 TP6012 0.1u[KB] C6013 R6077 0.22u[KB] C6051 0.01u[KB] C6014 R6034 R6079 TP6008 IC6005 TP6011 R6010 R6170 R6171 C3EBJC000061...
Page 72 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 MAIN VI SCHEMATIC DIAGRAM C6013 R6077 0.22u[KB] C6051 0.01u[KB] C6014 R6079 TP6008 D6005 R6073 B0JCCE000008 IC6003 C0EBY0000341 R6076 (RESET) R6075 R6071 R6072 IC6002 470k 470k C0EBY0000341 (RESET) 1u[KB] C6017...
Page 73 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 MAIN VI SCHEMATIC DIAGRAM MAIN3.3V SUB5V DTV9V SUB3.3V STB5V MAIN5V STB3.3V C6031 TP6012 0.1u[KB] C6013 R6077 0.22u[KB] C6051 0.01u[KB] C6014 R6034 R6079 TP6008 IC6005 TP6011 R6010 R6170 R6171 5600...
Page 74 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 MAIN VI SCHEMATIC DIAGRAM L6002 J0JHC0000078 R6086 TRCD1 C6038 C6040 R6087 1u[KB] TRCD2 1u[KB] R6186 R6154 7.15k R6088 C6047 PT R6122 TRCD3 R6099 47k C6048 0.01u[KB] R6123 TO M IV, M V...
Page 75 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 MAIN VI SCHEMATIC DIAGRAM L6002 J0JHC0000078 SDA3_3.3V TP6016 C6040 C6038 1u[KB] 1u[KB] R6186 R6154 7.15k C6047 PT R6122 R6099 47k C6048 0.01u[KB] R6123 TRCST TRCST NTEST AD_SCL3 TO M II, M III...
Page 76 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 MAIN VII SCHEMATIC DIAGRAM VIDEO SIGNAL AUDIO SIGNAL TP5040 TP5041 SUB5V SUB3.3V MAIN3.3V TP5048 TP5049 DTV9V MAIN5V TP5042 TP5043 TP5046 IC5509 TP5047 TP5044 C0CBCAD00082 (+1.8V REGULATOR) TP5045 J0JHC0000078 C5618 L5518 0.01u[KB]...
Page 77 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 MAIN VII SCHEMATIC DIAGRAM TP5040 TP5041 TP5048 TP5049 TP5042 TP5043 TP5046 TP5047 TP5044 TP5045 J0JHC0000078 L5518 TP5061 TP5060 C5625 C5607 IC5508 C5609 R5664 0.01u[KB] 1u[KB] C5021 C0CBCAD00015 6.3V R5050 0.01u[KB]...
Page 78 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 MAIN VII SCHEMATIC DIAGRAM AUDIO SIGNAL VIDEO SIGNAL TP5040 TP5041 SUB5V SUB3.3V MAIN3.3V DTV9V MAIN5V TP5042 TP5043 TP5046 IC5509 TP5047 TP5044 C0CBCAD00082 TP5045 (+1.8V REGULATOR) J0JHC0000078 C5618 L5518 0.01u[KB]...
Page 79 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 MAIN VII SCHEMATIC DIAGRAM R5518 3.9 C5539 AVDD REFOUT R5519 3.9 C5572 R5520 3.9 R5611 0.1u[KB] IC5510 AGND 1.37k AVDD C1AB00002753 R5521 3.9 BIAS (HDMI INTERFACE) R5522 3.9 C5547...
Page 80 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 MAIN VII SCHEMATIC DIAGRAM L5028 68ohm R5650 120 C5539 AVDD L5029 68ohm R5651 120 REFOUT HDMI_INT2 HDMI_INT2 TO M V C5572 DVDD R5611 0.1u[KB] 0.1u[ZF] C5619 TP5515 TP5516 IC5510...
Page 81 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 MAIN VIII SCHEMATIC DIAGRAM VIDEO SIGNAL AUDIO SIGNAL R8820 TP8807 EXT_TS_OUT FL8806 AG_RF_AFT1 AG_RF_AFT1 TO M VI TP8808 L8826 TNR_L_AUDIO TNR_L_AUDIO TO M IX J0JCC0000100 EXC3BB221H TP8809 Front End...
Page 82 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 MAIN VIII SCHEMATIC DIAGRAM Front End FRONT_LSI AP_IFAGC_CONT 3.30V 3.3V AP_IFAGC_OUT SUB5V 5.00V L8828 C8841 J0JHC0000045 R8902 Q8804 2SB1218AHL FL8803 (BUFFER) J0MAB0000164 R8824 R8920 0 R8919 PT C8882 0.1u[KB] TO TUNER P.C.B.
Page 83 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 MAIN VIII SCHEMATIC DIAGRAM AUDIO SIGNAL VIDEO SIGNAL R8820 TP8807 EXT_TS_OUT FL8806 AG_RF_AFT1 AG_RF_AFT1 TO M VI TP8808 L8826 TNR_L_AUDIO TNR_L_AUDIO TO M IX J0JCC0000100 EXC3BB221H TP8809 L8827 TNR_R_AUDIO...
Page 84 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 MAIN IX SCHEMATIC DIAGRAM VIDEO SIGNAL AUDIO SIGNAL DTV9V L3002 R3035 R3030 PC_R C3047 C3049 R3036 Q3001 0.1u 2SC584500L (BUFFER) PC_G R3032 C3050 CN3002 PC IN PC_B FL3001 PC_H...
Page 85 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 MAIN X SCHEMATIC DIAGRAM (1/4) VIDEO SIGNAL FHD3.3V IC7101 THQYO9 IC7101 THQCO9 IC7101 FHQYIN9 IC7101 FHQCIN9 IC7101 THQYO8 IC7101 THQCO8 IC7101 FHQYIN8 IC7101 FHQCIN8 FHD3.3V IC7101 THQYO7 IC7101 THQCO7...
Page 86 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 MAIN X SCHEMATIC DIAGRAM (2/4) VIDEO SIGNAL IC7101 R7125 R7132 (VIDO SIGNAL PROCESS) EXB2HV470JV EXB2HV470JV BOE9 ROE9 IC7101 BOE9 IC7101 ROE9 BOE8 ROE8 IC7101 BOE8 IC7101 ROE8 BOE7 ROE7...
Page 87 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 MAIN X SCHEMATIC DIAGRAM (3/4) VIDEO SIGNAL BOE9 IC7119 BOE8 IC7119 BOE7 PEAKS_OSD_FLAG IC7119 IC7119 BOE6 IC7119 PEAKS_OSD15 BOE5 IC7119 IC7119 PEAKS_OSD14 BOE4 IC7119 IC7119 PEAKS_OSD13 BOE3 IC7119 IC7119...
Page 88 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 MAIN X SCHEMATIC DIAGRAM (4/4) VIDEO SIGNAL TA2- TA2+ TB2- TB2+ TC2- TC2+ TD2- R7343 R7342 TD2+ 1.8k 1.8k R7174 CLK2- R7341 1.8k 1.8k CLK2+ OSD_SRCK OSD_SWCK TO DRIVE P.C.B.
Page 89: Drive Schematic Diagrams
PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 9.3. DRIVE SCHEMATIC DIAGRAMS DRIVE I SCHEMATIC DIAGRAM VIDEO SIGNAL C2505 0.1u[ZF] C2503 0.1u[ZF] 0.1u[ZF] C2519 0.1u[ZF] C2529 C2502 0.1u[ZF] 0.1u[ZF] C2520 0.1u[ZF] C2530 C2508 0.1u[ZF] 0.1u[ZF] C2517 0.1u[ZF] C2527 C2507 0.1u[ZF]...
Page 90 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 DRIVE I SCHEMATIC DIAGRAM C2505 0.1u[ZF] C2503 0.1u[ZF] 0.1u[ZF] C2519 0.1u[ZF] C2529 C2502 0.1u[ZF] 0.1u[ZF] C2520 0.1u[ZF] C2530 C2508 0.1u[ZF] 0.1u[ZF] C2517 0.1u[ZF] C2527 C2507 0.1u[ZF] 0.1u[ZF] C2518 0.1u[ZF] C2528 C2504 0.1u[ZF]...
Page 91 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 DRIVE I SCHEMATIC DIAGRAM VIDEO SIGNAL R2OUT_2 L2501 J0JDC0000105 R2OUT[0] R2OUT[0] TO D IV, D IV R2OUT_4 L2538 J0JDC0000105 R2OUT[2] R2OUT[2] TO D IV, D IV R2OUT_6 L2539 J0JDC0000105...
Page 92 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 DRIVE I SCHEMATIC DIAGRAM TO D II G2IN[7] DCLK G2IN[8] IC2501 A16 DCLK IC2501 B16 TMS IC2501 C16 TEST6 IC2501 D16 VSEL IC2501 E16 VDD10 IC2501 K16 GND IC2501...
Page 93 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 DRIVE I SCHEMATIC DIAGRAM G1OUT_8 L2586 G1OUT[6] J0JDC0000105 G1OUT[6] TO D V, D V K16 GND IC2501 L16 GND IC2501 M16 GND IC2501 N16 GND IC2501 P16 GND IC2501...
Page 94 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 DRIVE II SCHEMATIC DIAGRAM VIDEO SIGNAL TP2901 TP2902 TP2903 L2916 J0JCC0000077 DCLK IC2903 +3.3V REGULATOR DCLK TO D I C0CBCBC00130 (+3.3V REGULATOR) R2932 VSYNC VSYNC TO D I R2933...
Page 95 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 DRIVE III SCHEMATIC DIAGRAM TP2704 TP2703 TP2702 TP2701 R2702 9V_IN 9V_IN C2701 C2702 R2704 Q2704 B1DHCC000034 (+9V CONTROL) R2705 R2701 5600 Q2701 TO D II LCD_ON_H 2SD1819A0L SWITCHING R2703...
Page 96 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 DRIVE IV SCHEMATIC DIAGRAM CN2001 (TO RED LCD PANEL) VIDEO SIGNAL L2001 J0JCC0000077 3.3V L2002 J0JCC0000077 L2003 J0JCC0000077 J0JCC0000077 R2OUT[9] R3OUT[3] TO D I R2OUT[9] TO D I R3OUT[3]...
Page 97 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 DRIVE V SCHEMATIC DIAGRAM CN2101 (TO GREEN LCD PANEL) VIDEO SIGNAL L2101 J0JCC0000077 L2102 J0JCC0000077 3.3V L2103 J0JCC0000077 L2104 J0JCC0000077 G1OUT[4] G4OUT[2] TO D I G1OUT[4] TO D I...
Page 98 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 DRIVE VI SCHEMATIC DIAGRAM CN2201 (TO BLUE LCD PANEL) VIDEO SIGNAL L2201 J0JCC0000077 L2202 J0JCC0000077 3.3V L2203 J0JCC0000077 L2204 J0JCC0000077 R2205 R2214 EXB38V102JV EXB38V102JV B1OUT[2] B3OUT[5] TO D I...
Page 99: Printed Circuit Board
PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 10 Printed Circuit Board 10.1. MAIN P.C.B. NOTE: MULTILAYER P.C.B. MAIN P.C.B. LSEP3234A THIS P.C.B. IS Multi-Layer P.C.B. THIS CIRCUIT BOARD SHOWS COMPONENT LAYOUT-PATTERN FOR COMPONENT SIDE AND FOIL SIDE. LAYOUT PATETRNS ARE SINGLE PATTERN FOR EACH (COMPONENT SIDE) SIDE THAT MAKE EASY TO SIGHT THE COMPONENT LAYOUT.
Page 100 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 MAIN P.C.B. LSEP3234A (COMPONENT SIDE) CN3002 D4001 JK3101 OPTICAL AUDIO OUT PC AUDIO IN C5508 R5042 IC5514 R5039 R5041 PC IN R5040 TP3013 D5522 C5015 C5014 IC5513 R3003 TP3021...
Page 101 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 MAIN P.C.B. LSEP3234A (COMPONENT SIDE) CN5500 CN5501 L5502 R5546 D4001 HDMI IN 1 HDMI IN 2 Q5505 Q5504 C5509 R5545 R5544 TP5015 TP5021 OPTICAL AUDIO OUT R5007 R5006 TP5033...
Page 102 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 MAIN P.C.B. LSEP3234A (COMPONENT SIDE) R7327 L4504 AC30 AC29 AC28 AC27 AC26 L4501 L4502 AB30 AB29 AB28 AB27 AB26 AA30 AA29 AA28 AA27 AA26 R7328 CN9501 R7331 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1...
Page 103 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 MAIN P.C.B. LSEP3234A (COMPONENT SIDE) C5609 R8471 R8425 X5500 R8476 IC5509 R8453 L5518 C5607 R8474 C5623 R8479 R7378 R8484 R8440 R8419 R5661 R8500 R8448 TP5040 CN8402 R8446 R8443 CN7101...
Page 104 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 NOTE: MULTILAYER P.C.B. MAIN P.C.B. LSEP3234A THIS P.C.B. IS Multi-Layer P.C.B. THIS CIRCUIT BOARD SHOWS COMPONENT LAYOUT-PATTERN FOR COMPONENT SIDE AND FOIL SIDE. LAYOUT PATETRNS ARE SINGLE PATTERN FOR EACH (FOIL SIDE) SIDE THAT MAKE EASY TO SIGHT THE COMPONENT LAYOUT.
Page 105 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 MAIN P.C.B. LSEP3234A (FOIL SIDE) L5503 R5547 TP5016 TP5018 TP5010 TP5012 R5009 TP8819 TP8818 R5548 R5551 R5010 IC5511 TP5020 IC5512 Q5501 TP5014 L5506 L5504 Q5500 TP8820 TP8817 D5002 D5004...
Page 106 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 MAIN P.C.B. LSEP3234A (FOIL SIDE) CN3001 C4060 D3007 R3012 R3068 5524 D3009 D3010 R3086 C3064 D3011 D3012 C3063 TP3004 C3062 D3008 TP3017TP3018 TP3001 C3061 TP3002 TP3005 R4042 R4043 C4061...
Page 107 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 MAIN P.C.B. LSEP3234A (FOIL SIDE) C7133 L5006 TP8807 C5625 R5640 R8454 R5639 TP5117 R5624 C7399 C5528 C5590 TP5041 R8442 C7219 R8441 R5635 C5589 C5531 TP5043 C7385 R8444 R8445 C7501...
Page 108 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 MAIN P.C.B. LSEP3234A (FOIL SIDE) C7485 C7489 C7133 C7119 C7126 C7104 TP7132 R7385 R7149 C7107 R7128 C7399 R7134 R7136 C4521 R7316 L7104 FL7104 C7219 C7217 FL7101 R7287 C7470 C6050...
Page 109: Drive P.c.b
PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 10.2. DRIVE P.C.B. NOTE: MULTILAYER P.C.B. DRIVE P.C.B. LSEP3235A THIS P.C.B. IS Multi-Layer P.C.B. THIS CIRCUIT BOARD SHOWS COMPONENT LAYOUT-PATTERN FOR COMPONENT SIDE AND FOIL SIDE. LAYOUT PATETRNS ARE SINGLE PATTERN FOR EACH SIDE THAT MAKE EASY TO SIGHT THE COMPONENT LAYOUT.
Page 110 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 NOTE: MULTILAYER P.C.B. DRIVE P.C.B. LSEP3235A THIS P.C.B. IS Multi-Layer P.C.B. THIS CIRCUIT BOARD SHOWS COMPONENT LAYOUT-PATTERN FOR COMPONENT SIDE AND FOIL SIDE. LAYOUT PATETRNS ARE SINGLE PATTERN FOR EACH SIDE THAT MAKE EASY TO SIGHT THE COMPONENT LAYOUT.
Page 111: Appendix Information Of Schematic Diagram
PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 11 Appendix Information of Schematic Diagram 11.1. CHECKING POINT TABLE OF THE CSP IC Check Point of IC7101 (Main P.C.B.) Name Voltage Check Point WF No. Remarks Name Voltage Check Point WF No.
Page 112 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 Check Point of IC7119 (Main P.C.B.) Name Voltage Check Point WF No. Remarks Name Voltage Check Point WF No. Remarks PEAKS_OSD8 ROE2 ROE3 PEAKS_OSD9 R7365 (LOWER) PEAKS_OSD10 R7132 COMPONENT SIDE...
Page 113 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 Check Point of IC8001 (Main P.C.B.) Name Voltage Check Point WF No. Remarks Name Voltage Check Point WF No. Remarks VOP2 VI1P7 VOP3 VI1P27 R5640 FOIL SIDE VOP4 VI1P8...
Page 114 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 Check Point of IC2501 (Drive P.C.B.) Name Voltage Check Point WF No. Remarks Name Voltage Check Point WF No. Remarks R1IN4 B2IN11 R1IN6 R2939 R2945 FOIL SIDE WF25 FOIL SIDE...
Page 115 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 Name Voltage Check Point WF No. Remarks Name Voltage Check Point WF No. Remarks G1OUT10 L2587 (UPPER) COMPONENT SIDE B3OUT2 L2432 (LEFT) COMPONENT SIDE WF27 G1OUT11 L2518 (UPPER) FOIL SIDE...
Page 116: Waveform Table
PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 11.2. WAVEFORM TABLE 500ms WF13 WF19 500ms 10ns WF14 WF20 25ms WF15 WF21 10µs 10ns WF10 WF16 WF22 5µs 10ns WF11 WF17 WF23 10ns 25µs WF12 WF18 WF24...
Page 117 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 25µs WF25 WF31 WF37 25µs 10ns 10ns WF26 WF32 WF38 25µs 5µs 25ns WF27 WF33 WF39 25µs 10ns 10ms WF28 WF34 WF40 25ns 5µs 10ns WF29 WF35 WF41 5µs...
Page 118: Exploaded Views
PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 12 Exploaded Views 12.1. OPTICAL UNIT SECTION OPTICAL UNIT SECTION...
Page 119: Main P.c.b. Unit And Top Duct Unit Section
PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 12.2. MAIN P.C.B. UNIT AND TOP DUCT UNIT SECTION MAIN P.C.B. UNIT & TOP DUCT UNIT SECTION...
Page 120: Replacement Parts List
PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 13 Replacement Parts List BEFORE REPLACING PARTS, READ THE FOLLOWING: ADJUSTMENT" in Adjustment Procedures 2 section. 13.1.3. Electrical Replacement Notes 13.1. REPLACEMENT NOTES 1. Unless otherwise specified; All resistors are in Ω, K = 1,000 Ω, M = 1,000 kΩ.
Page 121: Mechanical Replacement Parts List
PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 13.2. MECHANICAL REPLACEMENT Ref. Part No. Part Name & Description Remarks PARTS LIST XYN2+J4FJK SCREW,STEEL 1 PSEC XYN3+J8FJK SCREW,STEEL 1 PSEC XYC3+FG10FJ SCREW 1 PSEC XTV3+8GFJ TAPPING SCREW,STEEL XTV3+8FFJ...
Page 122 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks IC4003 C0ABBB000230 IC, LINEAR B1ADCF000075 TRANSISTOR SI PNP CHIP Q4502 IC4004 C0DBFFD00003 IC, LINEAR...
Page 123 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks B1ADCF000063 TRANSISTOR SI PNP CHIP MA2J11100L DIODE SI CHIP Q6005 D1207 B1ADCF000075 TRANSISTOR SI PNP CHIP...
Page 124 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks R1108 ERJ6GEY0R00V MGF CHIP 1/10W 0 R3006 ERJ3GEYJ103V MGF CHIP 1/16W 10K R1111 ERJ3GEYJ822V MGF CHIP 1/16W 8.2K...
Page 125 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks R4012 ERJ3EKF2002V MGF CHIP 1/16W 20K R5045 ERJ3GEYJ102V MGF CHIP 1/16W 1K R4013...
Page 126 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks R5587 ERJ3EKF8200V MGF CHIP 1/16W 820 R6043 ERJ3GEYJ473V MGF CHIP 1/16W 47K R5593...
Page 127 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks R6178 ERJ3GEYJ101V MGF CHIP 1/16W 100 R7163 EXB2HV820JV ARRAY CHIP 82 R6180 ERJ3GEYJ182V MGF CHIP 1/16W 1.8K...
Page 128 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks R7306 ERJ3GEYJ121V MGF CHIP 1/16W 120 R8057 ERJ2GEJ470X MGF CHIP 1/16W 47 R7307...
Page 129 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks R8220 ERJ3GEYJ103V MGF CHIP 1/16W 10K R8815 ERJ3GEYJ272V MGF CHIP 1/16W 2.7K R8221...
Page 130 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks JS7102 ERJ2GE0R00X MGF CHIP 1/16W 0 C3003 ECJ1VB1H103K C CHIP 50V 0.01UF JS7103...
Page 131 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks C4061 ECJ1VB0J225K C CHIP 6.3V 2.2UF C5545 F1H1C104A065 C CHIP 16V 0.1UF C4062...
Page 132 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks C6025 F1H1C104A065 C CHIP 16V 0.1UF C7162 F1G1A1040006 C CHIP 10V 0.1UF C6026 F1H1C104A065 C CHIP 16V 0.1UF...
Page 133 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks C7242 F1G1A1040006 C CHIP 10V 0.1UF C7476 F1G1A1040006 C CHIP 10V 0.1UF C7243 F1G1A1040006 C CHIP 10V 0.1UF...
Page 134 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks C8068 F1H1C104A065 C CHIP 16V 0.1UF C8920 F1G1H1020008 C CHIP 50V 1000PF C8069...
Page 135 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks L4003 J0JCC0000077 EMI FILTER CHIP L5515 J0JHC0000078 EMI FILTER CHIP L4004 G1C101KA0055 COIL CHIP 100UH...
Page 136 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks CN5503 K1KA30AA0009 CONNECTOR 30P B1ADCF000075 TRANSISTOR SI PNP CHIP Q2010 CN6003 K1KA08AA0150 CONNECTOR 8P...
Page 137 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks R2043 ERJ3GEYJ102V MGF CHIP 1/16W 1K R2506 EXB28V820JX ARRAY CHIP 82 R2045 ERJ3GEYJ102V...
Page 138 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks R2912 ERJ3GEY0R00V MGF CHIP 1/16W 0 C2106 ECJ3YB1C225K C CHIP 16V 2.2UF R2913...
Page 139 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks C2707 F1H1C104A065 C CHIP 16V 0.1UF L2408 J0JDC0000105 EMI FILTER CHIP C2708 F1H1C104A065 C CHIP 16V 0.1UF...
Page 140 PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks L2535 J0JDC0000105 EMI FILTER CHIP L2917 J0JCC0000077 EMI FILTER CHIP L2536 J0JDC0000105 EMI FILTER CHIP...

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Panasonic PT-50LCZ70 Service Manual

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