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Zenith C32V23 Service Manual

32-inch flat-screen integrated hdtv
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SERVICE MANUAL
Product Type:
Directview HDTV
Chassis:
AB
Manual Series: CM154
Manual Part #: 923-03497
Model Line:
E
Product Year:
2002
CONTENTS
Overview ...................................................... 1
Service Menu ................................................ 2
Servicing ..................................................... 3
Parts ........................................................... 4
Diagrams ...................................................... 5
Schematics ................................................... 6
Published September 2002
by Technical Publications
Zenith Electronics Corporation
201 James Record Road
Huntsville, Alabama 35824-1513
Copyright
2002 by Zenith Electronics Corporation
Model Series:
C32V23

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Summary of Contents for Zenith C32V23

  • Page 1 Overview ............1 Service Menu ..........2 Servicing ............. 3 Parts ............4 Diagrams ............5 Schematics ........... 6 Published September 2002 by Technical Publications Zenith Electronics Corporation 201 James Record Road Huntsville, Alabama 35824-1513  Copyright 2002 by Zenith Electronics Corporation...
  • Page 2 When servicing this product, under no circumstances should the original design be modified or altered without permission from Zenith Electronics Corporation. All components should be replaced only with types identical to those in the original circuit and their physical location, wiring and lead dress must conform to original layout upon completion of repairs.
  • Page 3 H_SIZE REGISTER of any of these components are deemed necessary, it is important to use original type Zenith components. After replacement is made, confirm proper anode voltage using the following procedure. Measurement of the CRT anode voltage must be performed using a high impedance-high voltage meter, with no raster on the screen, and operat- ing at nominal horizontal frequency, 33.75 Khz (HDTV signal).

  • Page 5: Table Of Contents

    TABLE OF CONTENTS SECTION 1 ......1-1 SECTION 6 ......6-1 OVERVIEW ..........1-1 POWER SUPPLY CIRCUIT ......6-1 INTRODUCTION ........1-1 DEFLECTION & HV CIRCUIT ....... 6-2 FEATURES ........... 1-1 DYNAMIC FOCUS CIRCUIT ......6-3 CONNECTIONS ......... 1-2 AC/DC INPUT CIRCUIT ......6-4 REAR JACKS ........

  • Page 7: Section 1

    INTRODUCTION The affordable Digital High Definition Television (ADTV) uses the Zenith AB chassis series. This manual covers the 32, 36, and 34 inch screen sizes. The chassis consists of two boards, the large signal and small signal. The large signal module uses a daughter board for the deflection section and the small signal board uses a shielded board for HDTV signal decoding.

  • Page 8: Connections

    CABINET audio. Dimensions and weight: 2. CALIBRATE C32V23: 35.97”w x 26.64"h x 23.28"d @158Lbs Service Port. Only to be use by qualified TV servicers and C34W23: 41.73"w x 24.7"h x 23.2"d @188Lbs technicians. C36V23: 39.92"w x 29.67"h x 24.14"d @226.5Lbs 3.

  • Page 9: Remote Control

    201, CABLE = 353, DVD = 960, and HD/STB = 800). For program remote using a different code. other brands, or if your remote fails to control your Zenith 6. Write the codes on the label inside the battery com- products, you’ll need to program the remote.

  • Page 10: Remote Codes

    REMOTE CONTROL REMOTE CODES T V ’ s R U NCO 16 8 16 9 083 145 AUDIO DYNAMICS 012 023 039 A M A R K 112 14 3 S AM PO 0 0 4 0 0 6 0 58 A D M IR A L 0 72 0 8 1 16 1 KEN W OOD...
  • Page 11 REMOTE CONTROL PA NA S ON IC 0 4 4 0 4 7 21 1 OPTONICA 053 054 0 3 4 0 4 0 0 53 0 54 13 1 PA R A GON 0 0 1 HIT ACHI 1 44 1 77 PANASONIC 066 070 074 Y AM AHA...
  • Page 12 REMOTE CONTROL 141 160 161 0 4 5 S HE R W OOD 0 12 0 19 132 177 185 S ONY 0 2 7 0 3 4 0 3 8 161 197 201 0 4 8 0 53 YAMAHA 109 119 137 S OU NDE S IGN 0 18 143 194 211...

  • Page 13: User Menus

    USER MENUS USER MENUS The Affordable Digital HDTV supports two display for- mats: 4:3 for Analog, Video1, Video2, Front Video and DVD inputs, and 16:9 for DTV and HD inputs. There are two main menus depending on the input source. When the input source is HD 1080i, a main menu called 'ATV Menu' is displayed;...

  • Page 14: Dtv Lock Menu

    USER MENUS ATV VIDEO MENU This menu may appear in newest models, the earliest sets doesn’t has Digital Closed Caption available. Figure 2.2 contains the Video Menu for HD 1080i External Input. Video Menu allows you to change video adjustments individually and also choose specific video preset values.

  • Page 15: Section 2

    SECTION 2 SERVICE MENU SERVICE MENU Access the Service Menu by using the Remote Control or the keyboard on the front of the set. With the remote: Press & hold MENU key until the clock appears, then press 9,8,7, 6 and ENTER. Use the Select key to select item #00, which is the first item in the Service Menu.

  • Page 16: Service Menu Adjustments

    SERVICE MENU PV154 - 923-03497 AB - SERVICE MENU...
  • Page 17 SERVICE MENU PV154 - 923-03497 AB - SERVICE MENU...
  • Page 18 SERVICE MENU PV154 - 923-03497 AB - SERVICE MENU...
  • Page 19 SERVICE MENU PV154 - 923-03497 AB - SERVICE MENU...
  • Page 20 SERVICE MENU PV154 - 923-03497 AB - SERVICE MENU...
  • Page 21 SERVICE MENU PV154 - 923-03497 AB - SERVICE MENU...
  • Page 22 SERVICE MENU PV154 - 923-03497 AB - SERVICE MENU...

  • Page 23: Section 3

    SERVICING SECTION 3 There two possibilities: Quasi-Resonant Mode and 20 CIRCUIT OVERVIEW kHz. The Quasi-Resonant mode handles the power when LARGE SIGNAL MODULE the application is turned on. When off, the 20 kHz mode The AB Large signal module is a COLD chassis consisting allows minimum power consumption.
  • Page 24 SERVICING SMPS, BASIC CIRCUIT FOR MASTER SMPS VOLTAGE SOURCES SWITCHED VOLTAGES FROM SWITCHED SMPS: Stand-By Voltages from MAIN SMPS: 215 V Switched ¡ Used for driving the Video output 21 V Stand by 100 V Switched ¢ 5.1VPD Power Down Detector 100 SVM Scan Velocity Modulation circuitry 15 VDBA...
  • Page 25 The ADTV chassis employs an innovative method of The Horizontal Deflection circuitry is a common flyback degaussing, just like former Zenith TVs it is performed topology used in many television and monitor through software in order to obtain a proper applications.
  • Page 26 SERVICING A sensing resistor inside of TX3201 provides a DC voltage This voltage is induced to the secondary windings of proportional to the CRT anode voltage and is used like a TX3100 to add to the voltage generated in the horizontal primary feedback for the HV compensation circuit.
  • Page 27 SERVICING BASE DRIVE HV COMPENSATION PV154 - 923-03497 AB - SERVICING...
  • Page 28 SERVICING SHUTDOWN CIRCUIT OPERATION VERTICAL DEFLECTION PV154 - 923-03497 AB - SERVICING...

  • Page 29: Small Signal Module

    SERVICING SMALL SIGNAL MODULE AUDIO SYSTEM The AB chassis is offers up to five audio input sources The AB chassis features 10 IC's for small signal processing and an AUX output for MONITOR through the RF Switch. and 5 regulators for small signal power supply. The The tuner delivers IF signals that are processed by U1200 ICM2200 CXA2150Q (0IMCRSO007A) is the video and and U1201 saw filters.
  • Page 30 SERVICING Once the audio is processed the audio stereo amplifier Below is a simplified block diagram of the AB chassis IC800 TDA7263 (0ISG726300B) delivers the sound video output circuit. The signal is first uncoupled at through the speakers. the output of the video processor. Then the signal is derived by the video drive and is applied to the three AUDIO AND VIDEO SWITCHING transistors Q2205, Q2206, &...
  • Page 31 SERVICING The input signal is connected to the inverting input of Block diagram for the video output circuit: the amplifier through resistor R5121 to avoid Hi frequency oscillations. The non-inverting input is connected to a voltage bias formed by resistors R5101 and R5102.

  • Page 32: Geometry Adjustments

    SERVICING GEOMETRY ADJUSTMENTS REGISTER #125 / NAME AFC-BOW The “AFC-BOW” values can go from 0 up to 63. If you decrease the register value down to 0 you’ll see the fig 1. If you increase the register value up to 63 you’ll see fig. 2. Fig 4 Figure 3: This image shows the result of increasing the register up to 63 look that the center area remains...
  • Page 33 SERVICING Figure 7: This image shows the result of decreasing the register value down to 0. You can notice that full image is moving downward without affect the geometry. Figure 8: This image shows the result of increasing the register value up to 63. You can notice that full image is moving upward without affect the geometry.
  • Page 34 SERVICING Figure 13: This image shows the result of decreasing the register down to 0. You con notice that top half of picture is fully open and the bottom half remains unaffected by the correction. Figure 14: This image shows the result of decreasing the register value down to 0.
  • Page 35 SERVICING REGISTER #133 /NAME V-ASPECT “V-ASPECT”. This correction affect full image , shrink or expand it. It’s very similar to Vsize because both do the same but Vaspect should be used to adjust the ratio 4:3 or 16:9. The register can take values from 0 up to 63. If you decrease the register value down to 0 you’ll see the fig 17.
  • Page 36 SERVICING Fig.22 Fig.25 Fig 24. This image shows the result of decreasing the Fig. 21 This image shows the result of decreasing the register value down to 0.This correction affect the top register down to 0, notice that all the screen is shrinking half of the picture as result the top half is bowed outward.
  • Page 37 SERVICING Fig. 27. This image show the result of increase the register up to 63. You can notice that the top of the image is shrinking while the bottom is fully open , this create a trapezoid image. REGISTER # 141/ NAME UP-CPIN The "UP-CPIN"...

  • Page 38: Troubleshooting

    SERVICING TROUBLESHOOTING No Video, Raster and H.V. OK (main module) Check IIC Note: Input NTSC RF Check CV on (Pins 5 and 6) and 5 CV = Composite Video signal Q1206 Emitter (Pin 4) of WT1200 Y/C = S-Video Check 9V AVS on C2920 Check CV positive lead and IIC.
  • Page 39 SERVICING Horizontal Deflection and High Voltage Turn on Stand By Video Signal Power Supply 72V - RX3803 12V - LX3801 21V - LX3802 V_Prot Signal Power Control Signal Power Supply Board R2100 RX3890 V_Prot Signal Switched Power Supply Main Board 40V - RX3854 Pin 35 - ICM2200 18V - RX3856...
  • Page 40 SERVICING No Horizontal or Vertical sync. Check sinc. on Y Check Digital at +C2719. Board Check 5V sw1 on +C2710, Check timings and Check 5V SYNF on +C2723, Check sync. on Y levels of H sync. on Check 5V sw2 on +C2730, at +C2705 RM2733 and V sync.
  • Page 41 SERVICING No Sound Analog RF) Check the SIF on pin 14 of WT1200 Check pin 36 & 37 of IC1400 and pin 2 & 4 of CNP200A Check IC1400 Check pin27 & 28 of IC1400 and audio line Check IC800 Check digital board and audio line No Sound (auxiliary input)
  • Page 42 SERVICING Remote does not work properly (micro section) Check if Keyboard works properly Check if the IR is the cause of the problem by Reset Microcontroller and replacing the entire Keyboard module try again TV can not be operated Keboard works ok even with the Keyboard The problem is the IR or other Check if I2C bus (SDA at pin 42...
  • Page 43 SERVICING No Analog OSD (micro section) Go to HD In Source and press Menu Key (any Menu must be displayed) Check 27Mhz signal is present Analog OSD is ok at pins 34 and 35 of IC6000 The problem in the OSD Check Fast Blank signal is Oscillator, check CRY6002, present (at pin 61 IC6000)
  • Page 44 SERVICING No Sound Analog RF) Check the SIF on pin 14 of WT1200 Check pin 36 & 37 of IC1400 and pin 2 & 4 of CNP200A Check IC1400 Check pin27 & 28 of IC1400 and audio line Check IC800 Check digital board and audio line No Sound (auxiliary input)

  • Page 45: Section 4

    PA-19590 CRT with Yoke (2H), Flat 32V Panasonic M80LS Fax: 1-888-6-ZENITH PF-54854 Keyboard Assy PF-54857 Front Jacks Ass’y Mail: Zenith National Parts PF-55008 Cover & RF Switch Ass’y 201 James Record Road C34W23 Huntsville, AL 35824-1513 C32V23 PART NUMBER DESCRIPTION...
  • Page 46 MODEL PARTS PF-54854 Keyboard Ass’y A-18695-P29 Gnd Strap Ass’y, CRT PF-54857 Front Jacks Ass’y P009-02289-06 Module, Main Ass’y PF-55008 Cover& RF Switch Ass’y P009-02290-02 Module, Power Supply P009-02291-02 Module, Video Output P009-02292-02 Module, Digital Board, with ACC & DCC P014-12367 Front Cabinet P014-12368 Rear Cabinet...

  • Page 49: 34" Exploded View

    SECTION 5 34” Exploded View REF DESCRIPTION C34W23 C34W23-2 FRONT CABINET P014-12367 P014-12367 FRONT FRAME P014-12369 P014-12369 POWER BUTTON P046-10598 P046-10598 SPRING COIL 320-062E 320-062E FRONT DOOR PA-19619 PA-19619 SPRING PLATE 4970V00020A 4970V00020A IR LENS P192-00929 P192-00929 FRONT JACK PF-54857-01 PF-54857-01 CRT &...

  • Page 50: 32/36" Exploded View

    32/36” Exploded View REF DESCRIPTION C32V23-8 C32V23-82 C36V23 C36V23-2 FRONT CABINET P014-12361-04 P014-12361-04 P014-12363-04 P014-12363-04 FRONT DOOR P024-03483-02 P024-03483-02 P024-03483-02 P024-03483-02 IR LENS P192-00928 P192-00928 P192-00928 P192-00928 FRONT JACK PF-54857 PF-54857 PF-54857 PF-54857 KEYBOARD PF-54854 PF-54854 PF-54854 PF-54854 CRT & YOKE ASSEMBLY PA-19590...

  • Page 51: Interconnect Diagram

    Interconnect Diagram VIDEO OUTPUT AND SVM KEYBOARD FRONT MODULES MODULE JACKPACK SCAN BOOST MODULE POWER SUPPLY MODULE MAIN MODULE SWITCH DIGITAL BOARD PV154 - 923-03497 AB - EXPLODED VIEWS...

  • Page 52: Block Diagram

    Block Diagram If AGC (Dont' use) IF - Out Down ATSC/NTSC Filter Converter TDA9829 Tuner AVSB Data SDA - DB2 TDPC-H701F HDALL (LGDT3102) SCL - DB2 ATSC/NTSC Affordable DTV CV - Tuner Switch Y, Cr, Cb Video/Sync BLOCK DIAGRAM Y- In Selector HD 1080i DVD 480i...

  • Page 53: Ac/Dc Input Circuit

    SECTION 6 AC DC Input Circuit KX3900 P195-168 CN3T8 P58-668-2 DX3900 103-344-6A FR105G RX3902 THX3902 470K PROV RX3900 1/2W QX3900 DEG-CTRL SHEET 6 0TR322809AA 2.2K THX3901 KTC3228-0 Prov P63-11290 P009-02290-01 36V P009-02290-02 34W P009-02290-03 32V BRX3450 BRX3400 FX3400 212-172-4 212-172-4 CN4R8 136-114-24A P95-4641-3...
  • Page 54 Deflection & HV Circuit TO CRT YOKE D4809 R4827 CN4X4 RX3210 103-561A SHEET 5 QX3200 L3201 P58-668-3 +18HDR 1N4148 C4807 PF-54866 D4810 C3201 C3202 R4829 0.02 47 H 1/2W P121-1393 220 MF 0.047 2000V D3202 P126-3763 103-561A 2SC5570 QX3200 1N4148 CN2W6 103-344A +15V...

  • Page 55: Slave Power Supply Circuit

    Slave Power Supply Circuit QX3890-C SHEET 6 QX3890 PWR-CTRL2 SHEET 6 0TR322809AA KX3870 C KTC3228-0 CX3670 RX3890 195-161 +215 470pF 4.7K RX3881 LX3881 1000V DX3890 22µH Power Control 8.2K DX3660 LX3850 0DD414809ED CX3881 1N4148 22µH ZDX3881 100µF 0DD400700BA CX3660 RX3850 FX3660 0DZ330009DF UF4007...
  • Page 56 Master Power Supply Circuit ICX3720 +5.1 0ILI817000G CN4A6 LTV817M 50-2804-P5 RX3423 RX3720 CX3420 1.8K RX3424 100 F 1/2W 1/2W QX3720 CX3622 ICX3805 1.8K RX3721 CX3421 121-1102A 2SA1020Y PF-54862 470pF 100pF LX3802 1000V 221-1460-10 +21VSB VP408-2D +15V RX3420 RX3421 BRX3450-3 22 H DX3612 KA78R15 RX3722...
  • Page 57 Shutdown and Compensation DB Circuit Q3304-G SHEET 5 EW-DRV LARGE SIGNAL MODULE +15V +15V +15V CN5W2 C3111 4700pF 58-605-8 C3113 R3134 10 F Q3304-G R3144 PA-19567-01 36V Q3105 2.7K 121-1314A PA-19567-02 34W EW-DRV C3119 2N3904 R3132 PA-19567-03 32V R3143 HV-ADJ PROV Q3104 D3107...
  • Page 58 Dymanic Focus Circuit R4825 330K D4811 C4816 103-461A 1N4148 R4839 5.6K 100pF ZD4801 100V 103-279-10A 5.1V IC4802 1/2W 1N5231B Q4805 221-559 C4805 0TR733009AA RX4820 LM318N KSA733C-Y 4700pF SHEET 4 R4838 R4841 1000V R4843 5.6K 3.9K RX4807 C4817 C4815 0.01 R4830 R4824 300K SHEET 4...
  • Page 59 Scan Boost Control R3316 C3304 0.047 C3303 200V C3305 R3309 R3308 4700pF 330pF C3300 470K 470K R3300 500V 500V R3302 2.2µF EW-DRV R3301 R3341 IC3300 P/L 1% 221-345-1 R3303 MC34060AP R3304 R3305 R3306 H-FLYBK 971-16 R3307 SHEET 4 C3301 C3302 0.01 Q3304-G C3307...
  • Page 60 MVR2 Scan Velocity Circuit +100 R5500 R5501 1/2W C5500 C5501 C5502 C5514 10 F R5513 R5521 47 F 250V 250V 250V C5509 R5509 Q5504 121-1344 R5520 408-002D PF-54715 Q5503 R5502 2SA1837 0TR945009AA KSC945C-Y 1/2W D5502 C5503 C5504 C5505 C5513 R5510 FR105G 100 F 103-344-6A...
  • Page 61 Video Output Circuit CN3C1 +215 IC5121 +215VDO P50-2889-5A PF-54551 221-1404 L5101 126-3760-1 SVM-LVL TDA6120Q 10MH POWER SUPPLY C5103 SVM-GND 10MF C5102 +100 350V +100SVM +12VDO CN9C2 C5100 +24SVM 47 F 58-586-9 +215 CRT1 D5122 103-415-2A R5128 L5121 R5127 FDH1V001 6.8 MH R5121 E5121 1/2W...
  • Page 62 Signal Power Supply Circuit ICX3820 PF-54860 221-1460-3 VP408-2D KA78R05 LX3820 RX3820 +5VAUD 22 H CX3821 CX3820 ICX3810 470 F 100 F 221-1460-3 RX3821 LX3821 LX3811 KA78R05 RX3811 +5VUP +5VSYN 22 H 22 H CX3812 LX3822 CX3811 220 F +5VVPR 1000 F RX3812 22 H ICX3825...
  • Page 63 Tilt Circuit IC4501 0ISA164500B LB1645N RM4508 4.7K Q4501 0TR945009AA OUT2 R4513 C4503 KSC945C-Y RM4506 RM4507 Q4503 RM4511 47µF PROV TILT-2 PROTECTION 0TR945009AA KSC945C-Y R4505 C4504 Vcc2 4.7µF D4500 RM4512 PROV Vcc1 0DD414809ED 1N4148 R4504 R4503 CM4501 0.01 C4502 RM4501 PROV PROTECTION OUT1 Q4502...
  • Page 64 Micro Processor Circuit ICM6003 221-354-P2A 74LS221D MASTER RM6002 D6004 RM6095 PROV 1Rext 103-461A 2.2K P009-02289-01 36V (3D Comb, No Dig. CC) Q6001 1CLR 1Cext IC6000 RM6085 AFC2-PIP RM6003 CM6075 SHT 9 P009-02289-02 34W (3D Comb, No Dig. CC) PROV 4.7K P221-1533 H-FBP 2200pF...
  • Page 65 Main Tuner Circuit RM1232 C1235 CM1232 4.7 F RM1231 1000pF RM1230 100K Q1203 C1236 RM1226 0TR733009AA SD1-MAIN Y/CV-MICRO SHT 11 SHT 11,4 KSA733C-Y 4.7 F RM1229 CM1233 Q1204 0TR959009AA RM1227 2200pF BF959 470K CM1234 RM1228 RM1236 2200pF SDA-2 SHT 13,9 SCL-2 SHT 13,9 L1201...
  • Page 66 Pip Tuner Circuit PROV RM1308 CM1314 C1316 1000pF Q1302 4.7µ 0TR733009AA RM1322 RM1316 KSA733C-Y PROV C1313 RM1306 SD2-PIP SHT 11 1µ PROV Q1304 CM1318 RM1312 0TR945009AA RM1307 KSC945C-Y 3.9K 470K 2200pF CM1320 RM1311 2200pF WT1300 RM1314 L1300 P175-2902 10µH TAFC-H004F C1301 CM1300 470µF...
  • Page 67 Sync Processor Circuit RM2739 SDA-1 SHT 11 Cr-1080i H-SIN SHT 10 RM2738 SCL-1 L2702 Cb-1080i SHT 11 SHT 10 +9H-SIN L2700 L2701 +5VSW1 Y-1080i 47 H SHT 10 100 H C2744 CM2745 100 H 100 F 0.01 CM2706 C2707 L2704 RM2702 47 F +5VSW2...
  • Page 68 CRT Driver Circuit RM2276 0.1 RM2277 SETUP SHT 11 0.1 RM2278 SVM-LVL SHT 5 RM2279 RM2252 CN9C2 RM2200 RM2254 58-586-9 HT-OSD SHT 11 CM2222 RM2202 CM2221 Q2209 RM2253 PROV C2214 PROV 0TR733009AA PROV KSA733C-Y RM2201 FB-OSD SHT 11 RM2255 CM2238 PROV 3.3M TP2203...
  • Page 69 Audio Circuit C1438 AUX-L SHT 4 0.47 C1439 C1421 AUX-R L1401 TP1405 SHT 4 L1402 +9VF L1403 +8VSIF 10µH 0.47 10µF 10µH TP1404 TP1406 10µH C1414 CM1442 C1443 CM1444 C1445 100µF 100µF CM1422 C1401 10µF 10µF RM1400 1000pF RM1402 C1417 CM1418 TP1402 1.5K...
  • Page 70 AV Switch Circuit AUX-L-480i SHT 10 AUX-R AUX-R-480i SHT 6 SHT 10 R2816 PROV AUX-L-HD R2817 SHT 10 AUX-L SHT 6 PROV AUX-R-HD SHT 10 R2818 IP2922 PROV CS-VID SHT 13 R2819 IP2923 PROV YS-VID C2808 SHT 13 RM2959 Q2905 4.7µF RM2925 0TR959009AA...
  • Page 71 Jack Pack Circuit AUX-L-HD SHT 4 AUX-R-HD SHT 4 Cb-1080i SHT 7 Cr-1080i SHT 7 Y-1080i SHT 7 AUX-L-480i SHT 4 AUX-R-480i SHT 4 +9VSW3 L2904 47µH RM2973 C2933 6.8K CM2934 100µF C2932 Q2909 R2972 0TR945009AA RM2968 47 2% 10µF KSC945C-Y 6.8K R2971...
  • Page 72 Digital Board & 3D Comb Connector Circuit DIGITAL BOARD SHIELDDB 4814V00251A CNP200A 6932V25004A 85013-0050 I2S-CL RM2748 SHT 6 RM2749 ANALOG-L CM1238 SHT 6 I2S-WS RM2750 SHT 6 RM2751 100PF ANALOG-R SHT 6 SCL-2 SHT 8,9 SDA-2 SHT 8,9 RM2752 IF-AGC SHT 9 PROV DTV-RESET...

  • Page 73: Keyboard Circuit

    Keyboard Circuit 32” 85-1832 85-1832 85-1832 85-1832 85-1832 85-1832 MENU VOL-DWN VOL-UP CH-DWN CH-UP ON/OFF PF-54634 TSOP1240 162-46 P12-10927 PA-19567-01 36V PA-19567-03 32V CN6K2 58-542-5 34” 85-1832 85-1832 85-1832 85-1832 85-1832 85-1832 MENU VOL-DWN VOL-UP CH-DWN CH-UP ON/OFF PF-54634 TSOP1240 162-46 P12-10927 PA-19567-01 36V...
  • Page 74 Front Jack Circuit 32” 34” AUDIO IN S-VIDEO IN VIDEO IN LEFT RIGHT 78-3404-1 78-3403 78-3404-1 78-3402-1 78-3402 78-3403 78-3402-1 78-3402 Composite Video Luma Audio In L Chroma Audio In R PA-19567-01 36V PA-19567-03 32V CN2FR10A CN2FR10 58-586-10 58-586-10 CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER “X“ IN THEIR ALL SYMBOLS WITH “M”...
  • Page 75 Power On, LED and IR Circuit LED1 PROV IR100 162-002B 6726VV0006J CN7K2 58-542-6 +5VSB 0TR959009AA BF959 4.7K Infrared ZD51 470pF 103-279-9A 100V 4.7V 1/2W SW100 140-275B 10µH 0.01 100µF ALL SYMBOLS WITH “M” ON END OF DESIGNATOR CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER “X“ IN THEIR CM154 - 923-03497 6-23 AB - SHEET 23...

  • Page 76: Main Pcb Top

    Main PCB Top TO LARG E TO LARG E TO VI DEO CN2G 4 CN9C2 SI G NAL M O DULE I CX3825 O UTPUT I CX3820 SI G NAL M O DULE F G 5 C2213 +5V R EG Q 1302 CN2A1 C2242...

  • Page 77: Main Pcb Bottom

    Main PCB Bottom Z D 2 9 1 4 » » » » C X 3 8 2 6 » » » » Z D X 3 8 3 9 » » » » » » E B C » »...

  • Page 78: Power Supply Pcb Top

    Power Supply PCB Top VER TI C AL C N 4Y4 YO KE C2106 Q 3202 W 16 R2119 R3203 R3232 C3230 R2120 RX3892 C3200 RX3206 R3005 R3233 R3230 C3231 C3233 Q X3892 Q 3201 RX2112 D3201 R3217 Q 2100 R3205 RX2115 RX2114...

  • Page 79: Power Supply Pcb Bottom

    Power Supply PCB Bottom » » O U T O U T C X 3 6 6 2 » » » » » » » » » » » ALL SYMBOLS WITH “M” ON END OF DESIGNATOR CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER “X“ IN THEIR CM154 - 923-03497 6-27 AB - SHEET 27...

  • Page 80: One Panel Pcb Top

    One Panel PCB Top VI D EO LEFT R I G H T AD TVA- SH VC - 08 R3309 S- VI D EO R3321 C3305 R3341 R3308 R3301 R3307 I C3300 R3325 R3300 BLAN C O R O JO AM AR I LLO C3304 ADTVA-FRJKW 34 -08...

  • Page 81: One Panel Pcb Bottom

    One Panel PCB Bottom R 3 3 0 9 R 3 3 2 1 Q 3 3 0 3 J 1 5 J 1 6 J 1 7 C 3 3 0 5 J 1 8 R 3 3 0 8 R 3 3 0 7 R 3 3 2 5 R 3 3 0 1...

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