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(TAC0057) – SUMMARY – 43A10, 43AX60 are the same as 50A60 except for the parts and bus data of micro-processor, Con- vergence ajustment and Mechanical disassembly tabled on back of this sheet. Use this service manual together with the service manual of 50A60, 50A50, 55A60, 61A60 (File No.
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SETTING & ADJUSTING DATA DIFFERENCES SERVICE MODE ADJUSTING ITEMS AND DATA IN THE SERVICE MODE: Item Name of adjustment Preset Data V-HEIGHT V-S CORRECTION PICTURE WIDTH V-LINEARITY PARA E-W PARABOLA(DPC) TRAP TRAPEZIUM Table-2 DESIGN MODE ADJUSTING ITEMS AND DATA IN THE DESIGN MODE: Item Name of adjustment Preset Data...
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CONVERGENCE ADJUSTMENT Adjust convergence from center to circumference in order. 1. Select the adjustment mode following the steps on page 9 of original service manual. RCUT KEY FUNCTION IN THE CONVERGENCE ADJUSTMENT: Up : 2 button Selet Green color: 3 button Left : 4 button 2.
CHAPTER 1 GENERAL ADJUSTMENTS SAFETY INSTRUCTIONS WARNING: BEFORE SERVICING THIS CHASSIS, READ THE “X-RAY RADIATION PRECAUTION”, “SAFETY PRECAU- TION” AND “PRODUCT SAFETY NOTICE” INSTRUCTIONS BELOW. X-RAY RADIATION PRECAUTION 1. Excessive high voltage can produce potentially hazardous 2. This receiver is equipped with a Fail Safe (FS) circuit which X-RAY RADIATION.
CRT ASSEMBLY REPLACEMENT AND MOUNTING CAUTION : DO NOT LOOSEN THE HEX HEAD BOLTS WITH SPRINGS (12 PCS), BECAUSE THOSE ARE FOR SEALING OF CRT COOLANT. Attention Serviceman The Hex Head Bolts with Springs. (see sketch) used on CRT assembly, 8 o’clock are “NOT”...
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TO REMOVE CRT (Same procedure for R, G, B) 1. Remove CRT DRIVE Board, S. V. M. COIL and DEF. YOKE from CRT. 2. Remove Lens Assembly. 3. Detach CRT Anode Cap from CRT. 4. Remove CRT Assembly from CRT Mounting. Anode Cap CRT REPLACEMENT (Same procedure for R, G, B) Reverse the removal procedures except the followings.
WARNING : BEFORE SERVICING THIS CHASSIS, READ THE “X-RAY RADIATION PRECAUTION”, “SAFETY PRE- CAUTION” AND “PRODUCT SAFETY NOTICE” ON PAGE 3 OF THIS MANUAL. PICTURE TUBE COMPONENTS ADJUSTMENT DESCRIPTION OF NECK COMPONENTS TILT ADJUSTMENT Rotate R, G, B deflection yoke so that picture becomes horizon, then fasten screw.
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LOCATION OF SCREEN AND FOCUS VR’S SCREEN VR FOCUS VR – 7 –...
REPLACEMENT OF THE CRT Service parts are provided for each R, G and B. The contents of the parts are as follows. 50A50 23796001 23005397 23796003 ↑ 50A60 23005114 23005115 HITACHI ↑ ↑ 55A60 23005242 ↑ 61A60 23005249 23796486 REPLACEMENT OF HIGH VOLTAGE CABLE 1.
SERVICE MODE 1. ENTERING TO SERVICE MODE 1) Press MUTE button once 2) Press MUTE button 3) While pressing the MUTE button, on Remote Control. again to keep pressing. press MENU button on TV set. MUTE (Service mode display) 2. DISPLAYING THE ADJUSTMENT MENU 1) Press MENU button on TV.
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4. SELECTING THE ADJUSTING ITEMS 1) Every pressing of CHANNEL s button in the service mode changes the adjustment items in the order of table-2. (t button for reverse order) Refer to table-2 for preset data of adjustment mode. (See SETTING & ADJUSTING DATA on page 17) 5.
ELECTRICAL ADJUSTMENT ITEM ADJUSTMENT PROCEDURE VERTICAL POSITION (VCEN) 1. Call up the adjustment mode display, then select item VCEN. 2. Press the VOLUME s or t button to get the voltage +30 ±10 mV. 3. Measuring method of voltage as follows. TP-V (on SIGNAL board) DIGITAL...
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ITEM ADJUSTMENT PROCEDURE HEIGHT 1. Call up the adjustment mode display, then select the item HIT. (HIT) 2. Press the VOLUME s or t button to get the picture so the top of raster begins to lack. 3. Press the VOLUME s button to advance the data by 10 steps. Note : Check the vertical picture position is correct.
CONVERGENCE ADJUSTMENT Adjust convergence from center to circumference in order. 1. Select the adjustment mode following the steps on page 9. RCUT KEY FUNCTION IN THE CONVERGENCE ADJUSTMENT: Up : 2 button Selet Green color: 3 button Left : 4 button 2.
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NOTES In many cases, color misconvergence may be corrected by returning HIT and WID data in main deflection side to initial adjusting values. Following cases will surely require readjustment of convergence. CRT REPLACEMENT When CRT is replaced, main deflection readjustment and color matching are required. Perform following procedures.
SCREEN AND MIRROR ALIGNMENTS ASSEMBLING OF MOUNTING OF FRONT SCREEN FRONT SCREEN 5 screws Fresnel sheet 3 screws Protect shield FRONT 3 screws (for 50”) Lenticular sheet 3 screws Protect shield FRONT Fresnel sheet Stick cotton cloth tape Label with part Label with part number number...
CIRCUIT CHECKS HIGH VOLTAGE CHECK FS CIRCUIT CHECK CAUTION: There is no HIGH VOLTAGE ADJUSTMENT on The Fail Safe (FS) circuit check is indispensable for the final this chassis. Checking should be done following check in servicing. Checking should be done following the the steps below.
CHAPTER 2 SPECIFIC INFORMATIONS SETTING & ADJUSTING DATA SAFETY INSTRUCTIONS 43", 50", 55", 61" HIGH VOLTAGE AT ZERO BEAM: 31.3 kV MAX HIGH VOLTAGE: 32.4 kV Table-1 SERVICE MODE ADJUSTING ITEMS AND DATA IN THE SERVICE MODE: Item Name of adjustment Preset Date Item...
LOCATION OF CONTROLS (Representative : 50A60) TV front Behind the door MENU EXIT TV/VIDEO DEMO AUDIO S-VIDEO POWER VIDEO L/MONO Video Audio inputs POWER VOLUMET S EXIT DEMO MENU CHANNEL st TV/VIDEO TV rear ANT (75Ω) ANT-1 AUDIO CENTER CHANNEL IN S-VIDEO ANT-2 AUDIO...
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Remote Control RECALL LIGHT RECALL POWER LIGHT POWER TV/CABLE/VCR switch MUTE TV/VIDEO TIMER CABLE Set to “TV” to control the TV. TIMER MUTE TV/VIDEO CHANNEL s/t Channel Number VOLUME s/t CH RTN CH RTN C. CAPT ADV/ MENU PIP CH ENTER PIP CH s FAV t...
PROGRAMMING CHANNEL MEMORY The channel memory is the list of TV channel numbers the TV tunes in when you press the CHANNEL s or t button. First, use the TV/CABLE and CH PROGRAM functions to preset all active channels in your area automatically. If necessary, arrange the preset channels with the ADD/ERASE functions so that you can tune into only desired channels.
CHASSIS REPLACEMENT PARTS LIST WARNING: BEFORE SERVICING THIS CHASSIS, READ THE “X-RAY RADIATION PRECAUTION”, “SAFETY PRE- CAUTION” AND “PRODUCT SAFETY NOTICE” ON PAGE 3 OF THIS MANUAL. CAUTION: The international hazard symbols “ ” in the schematic diagram and the parts list designate components which have special characteristics important for safety and should be replaced only with types identical to those in the original circuit or specified in the parts list.
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Location Location Part No. Description Part No. Description CD, 1500pF, ±10%, 2kV EL, 10?F, ±20%, 50V C415 24092484 C628 24206100 EL, 10?F, ±20%, 50V (50A60/55A60/61A60) C629 24206100 EL, 0.1?F, ±20%, 50V C416 24828333 PF, 0.033?F, 200V C630 24206108 EL, 2.2?F, ±20%, 250V C417 24679229 C631...
SPECIFICATIONS (Representative: 50A60) TELEVISION SYSTEM NTSC standard CHANNEL COVERAGE VHF: 2 through 13 UHF: 14 through 69 Cable TV: Mid band (A-8 through A-1, A through I) Super band (J through W) Hyper band (AA through ZZ, AAA, BBB) Ultra band (65 through 94, 100 through 125) POWER SOURCE 120 V AC, 60 Hz POWER CONSUMPTION...
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SCHEMATIC DIAGRAM MODEL : 50A60 Chassis No. TAC0050 50A50 Chassis No. TAC0051 55A60 Chassis No. TAC0052 61A60 Chassis No. TAC0053 WARNING: BEFORE SERVICING THIS CHASSIS, READ THE "X-RAY RADIATION PRECAUTION", "SAFETY PRECAUTION" AND "PRODUCT SAFETY NOTICE" ON THE MANUAL FOR THIS MODEL. CAUTION: The international hazard symbols "*"...
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SCHEMATIC DIAGRAM MODEL : 50A60 50A50 Chassis No. TAC0050 Chassis No. TAC0051 55A60 61A60 Chassis No. TAC0052 Chassis No. TAC0053 NOTE: WARNING: BEFORE SERVICING THIS CHASSIS, READ THE "X-RAY RADIATION PRECAUTION", "SAFETY PRECAUTION" AND "PRODUCT SAFETY NOTICE" ON THE MANUAL FOR THIS MODEL. 1.