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JVC LT-26A70BJ Service Manual

Wide lcd panel television
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SERVICE MANUAL
WIDE LCD PANEL TELEVISION
SERVICE MANUAL
11
YA492
2006
LT-26A70BJ, LT-26A70BU, LT-26A70SJ,
LT-26A70SU, LT-32A70BJ, LT-32A70BU,
LT-32A70GU, LT-32A70SJ, LT-32A70SU
COPYRIGHT © 2006 Victor Company of Japan, Limited
1
PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2
SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
3
DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11
4
ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16
5
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-21

TABLE OF CONTENTS

COPYRIGHT © 2006 Victor Company of Japan, Limited
BASIC CHASSIS
FT2
No.YA492
2006/11

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  • Page 1: Table Of Contents

    SERVICE MANUAL WIDE LCD PANEL TELEVISION YA492 2006 SERVICE MANUAL LT-26A70BJ, LT-26A70BU, LT-26A70SJ, LT-26A70SU, LT-32A70BJ, LT-32A70BU, LT-32A70GU, LT-32A70SJ, LT-32A70SU BASIC CHASSIS COPYRIGHT © 2006 Victor Company of Japan, Limited TABLE OF CONTENTS PRECAUTION............... . . 1-3 SPECIFIC SERVICE INSTRUCTIONS .
  • Page 2 SPECIFICATION Contents LT-32A70BU Items LT-26A70BJ LT-26A70BU LT-32A70BJ LT-32A70GU LT-26A70SJ LT-26A70SU LT-32A70SJ LT-32A70SU Dimensions ( W × H × D ) 68.6 cm × 51.4 cm × 24.4 cm [Included stand] 82.0 cm × 58.8 cm × 24.4 cm [Included stand] 68.6 cm ×...

  • Page 3: Precaution

    SECTION 1 PRECAUTION SAFETY PRECAUTIONS [EXCEPT FOR UK] (1) The design of this product contains special hardware, (6) Isolation Check (Safety for Electrical Shock Hazard) many circuits and components specially for safety After re-assembling the product, always perform an purposes. For continued protection, no changes should be isolation check on the exposed metal parts of the cabinet made to the original design unless authorized in writing by (antenna terminals, video/audio input and output terminals,...
  • Page 4 SAFETY PRECAUTIONS [FOR UK] (1) The design of this product contains special hardware and many circuits and components specially for safety purposes. For continued protection, no changes should be made to the original design unless authorized in writing by the manufacturer. Replacement parts must be identical to those used in the original circuits.
  • Page 5 INSTALLATION 1.3.1 HEAT DISSIPATION 1.3.3 INSTALLATION REQUIREMENTS If the heat dissipation vent behind this unit is blocked, cooling To ensure safety in an emergency such as an earthquake, and efficiency may deteriorate and temperature inside the unit will to prevent accidents, ensure that measures are taken to prevent rise.
  • Page 6 HANDLING LCD PANEL 1.4.1 PRECAUTIONS FOR TRANSPORTATION 1.4.2 OPTICAL FILTER (ON THE FRONT OF THE LCD PANEL) When transporting the unit, pressure exerted on the internal LCD (1) Avoid placing the unit under direct sunlight over a panel due to improper handling (such as tossing and dropping) prolonged period of time.

  • Page 7: Specific Service Instructions

    DIGITAL VNR PICTURE MODE This function cuts down the amount of noise in the original This function can adjust the picture settings automatically. picture. MAIN DIFFERENCE LIST Item LT-26A70BJ LT-26A70SJ LT-26A70BU LT-26A70SU Paint Color Black Silver Black Silver ←...
  • Page 8 21-PIN EURO CONNECTOR (SCART) : EXT-1 / EXT-2 Pin No. Signal designation Matching value EXT-1 EXT-2 AUDIO R output 500mV(rms) (Nominal), Low impedance Used (TV OUT) Used (LINE OUT) AUDIO R input 500mV(rms) (Nominal), High impedance Used (R1) Used (R2) AUDIO L output 500mV(rms) (Nominal), Low impedance Used (TV OUT)
  • Page 9 TECHNICAL INFORMATION 2.4.1 LCD PANEL This unit uses the flat type panel LCD (Liquid Crystal Display) panel that occupies as little space as possible, instead of the conventional CRT (Cathode Ray Tube), as a display unit. Since the unit has the two polarizing filter that are at right angles to each other, the unit adopts "normally black" mode, where light does not pass through the polarizing filter and the screen is black when no voltage is applied to the liquid crystals.
  • Page 10 2.4.2 MAIN CPU PIN FUNCTION [IC3 : MAIN PWB] Pin name Function Pin name Function 1 P9_4 O PANEL_POWER_CONTROL 51 A17 O Program ROM address for CPU 2 P9_3 O POWER 52 A16 O Program ROM address for CPU 3 P9_2 O SC_RGB_CONTROL 53 A15 O Program ROM address for CPU...

  • Page 11: Disassembly

    SECTION 3 DISASSEMBLY DISASSEMBLY PROCEDURE CAUTION AT DISASSEMBLY: • Make sure that the power cord is disconnected from the outlet. • Pay special attention not to break or damage the parts. • When removing each board, remove the connectors as required. Taking notes of the connecting points (connector numbers) makes service procedure manageable.
  • Page 12 STAND ASS'Y BACK BRACKET SHIELD COVER REAR SIDE REAR COVER MAIN PWB RATING LABEL STNAD BRACKET POWER CORD INSULATOR POWER PWB TERMINAL BASE The terminal of a connector is turned up and connected. terminal side MAIN BASE Check that connector is inserted completly. (Don't insert aslant) LCD PANEL UNIT SPEAKER...
  • Page 13 MEMORY IC REPLACEMENT • This model uses the memory IC. • This memory IC stores data for proper operation of the video and drive circuits. • When replacing, be sure to use an IC containing this (initial value) data. 3.2.1 MEMORY IC REPLACEMENT PROCEDURE 1.
  • Page 14 3.2.3 SETTINGS OF FACTORY SHIPMENT 3.2.3.1 BUTTON OPERATION 3.2.3.2 REMOTE CONTROL DIRECT OPERATION Setting item Setting position Setting item Setting position POWER CHANNEL CHANNEL VOLUME VOLUME ZOOM AUTO TV/AV 3D SOUND SUB POWER 3.2.3.3 REMOTE CONTROL MENU OPERATION (1) PICTURE (4) FEATURES Setting item Setting position...
  • Page 15 REPLACEMENT OF CHIP COMPONENT 3.3.1 CAUTIONS (1) Avoid heating for more than 3 seconds. (2) Do not rub the electrodes and the resist parts of the pattern. (3) When removing a chip part, melt the solder adequately. (4) Do not reuse a chip part after removing it. 3.3.2 SOLDERING IRON (1) Use a high insulation soldering iron with a thin pointed end of it.

  • Page 16: Adjustment

    SECTION 4 ADJUSTMENT ADJUSTMENT PREPARATION 4.5.2 HOW TO ENTER THE SERVICE MODE (1) Press [INFORMATION] key and [MUTING] key on the (1) The adjustment using the REMOTE CONTROL UNIT is remote control unit simultaneously to enter the SERVICE made on the basis of the initial setting values. The MODE SCREEN.
  • Page 17 4.5.5.2 DESCRIPTION OF STATUS DISPLAY (4) WHITE BALANCE State of the colour temperature is displayed. SETTINGITEM No. SETTING ITEM SETTING VALUE (DATA) NOTE: In ADJUSTMENT MODE, the colour temperature can be set only to "NORMAL". When it is entered to ADJUSTMENT S001 5I R OF S001 5I R OF MODE, it is automatically changed to "NORMAL", even if...
  • Page 18 INITIAL SETTING VALUES IN THE SERVICE MODE • Perform fine-tuning based on the "initial values" using the remote control when in the Service mode. • The "initial values" serve only as an indication rough standard and therefore the values with which optimal display can be achieved may be different from the default values.
  • Page 19 Item No. Item name Variable range Setting value Item No. Item name Variable range Setting value S088 HD WM R DR 0 - 255 D048 HD75 S SHA 0 - 255 S089 HD WM G DR 0 - 255 D049 HD75 S COL 0 - 255 S090...
  • Page 20 Item No. Item name Variable range Setting value D098 BRI TIN 0 - 255 D099 0 - 255 4.6.1.3 AUDIO SYSTEM SETTING-1 Item No. Item name Variable range Setting value A001 S BASS 0 - 255 A002 S TRE 0 - 255 A003 3D LEVEL 0 - 255...

  • Page 21: Troubleshooting

    ADJUSTMENT PROCEDURE 4.7.1 VIDEO CIRCUIT Measuring Item Test point Adjustment part Description instrument WHITE Remote [1.ADJUST] (1) Receive a PAL 75% all white signal. BALANCE control unit S031: CVBS R DR (Red drive) (2) Set PICTURE MODE to "STANDARD". (HIGHLIGHT) S032: CVBS G DR (Green drive) (3) Set ZOOM to "FULL".
  • Page 22 Victor company of Japn, Limited Display category 12, 3-chome, Moriya-cho, Kanagawa-ku, Yokohama-city, Kanagawa-prefecture, 221-8528, Japan (No.YA492) Printed in Japan...

  • Page 23: Parts List

    PARTS LIST CAUTION The parts identified by the symbol are important for the safety . Whenever replacing these parts, be sure to use specified ones to secure the  safety. The parts not indicated in this Parts List and those which are filled with lines --- in the Parts No. columns will not be supplied. P.W.
  • Page 24 USING P.W. BOARD & REMOTE CONTROL UNIT ......................3-3 EXPLODED VIEW PARTS LIST ............................3-4 EXPLODED VIEW ..................................3-5 PRINTED WIRING BOARD PARTS LIST [LT-26A70BJ, LT-26A70BU, LT-26A70SJ, LT-26A70SU] ........3-6 MAIN P.W. BOARD ASS'Y (SFT-1051A-U2) .......................3-6 CONTROL P.W. BOARD ASS'Y (SFT-7251A-U2) ....................3-10 IR P.W. BOARD ASS'Y (SFT-8951A-U2) ........................3-11 POWER P.W.

  • Page 25: Using P.w. Board & Remote Control Unit

    USING P.W. BOARD & REMOTE CONTROL UNIT P.W.B ASS'Y No. P.W.B ASS'Y name LT-26A70BJ LT-26A70BU LT-26A70SJ LT-26A70SU ← ← ← MAIN P.W.B SFT-1051A-U2 ← ← ← CONTROL P.W.B SFT-7251A-U2 ← ← ← IR P.W.B SFT-8951A-U2 ← ← ← POWER P.W.B SFT-9051A-U2 ←...

  • Page 26: Exploded View Parts List

     LC12467-004A-U KNOB ASSY LT-26A70BJ,LT-26A70SJ,LT-32A70BJ,LT-32A70GU,LT-32A70SJ LC12467-003A-U KNOB ASSY LT-26A70BU,LT-26A70SU,LT-32A70BU,LT-32A70SU WJZ0250-001A-E E-HARNESS ASSY CONTROL R/IR U-MAIN CN00R/CN00U LC42247-007A LED PLATE LC41852-001B JVC MARK ASSY QAS0489-001 SPEAKER (x2) LC22243-001A-U SPEAKER HOLDER LC22243-002A-U SPEAKER HOLDER LC33649-001A-JK BACK BRACKET (x2)  SFT-1051A-U2 MAIN PWB LT-26A70BJ,LT-26A70BU,LT-26A70SJ,LT-26A70SU ...

  • Page 27: Exploded View

    EXPLODED VIEW SHIELD COVER REAR SIDE RATING LABEL STNAD BRACKET MAIN BASE (No.YA492)3-5...

  • Page 28: Printed Wiring Board Parts List [Lt-26A70Bj, Lt-26A70Bu, Lt-26A70Sj, Lt-26A70Su]

    PRINTED WIRING BOARD PARTS LIST [LT-26A70BJ, LT-26A70BU, LT-26A70SJ, LT-26A70SU] MAIN P.W. BOARD ASS'Y (SFT-1051A-U2) Ref No. Part No. Part Name Description Local Ref No. Part No. Part Name Description Local UDZW8.2B-X Z DIODE UDZW8.2B-X Z DIODE EDD1232AABH-6B UDZW5.6B-X Z DIODE...
  • Page 29 Ref No. Part No. Part Name Description Local Ref No. Part No. Part Name Description Local NCB31CK-104X C CAPACITOR 0.1uF 16V K C165 NCJ21CK-106X-R C CAPACITOR 10uF 16V K NCB31CK-104X C CAPACITOR 0.1uF 16V K C166 NCJ21CK-106X-R C CAPACITOR 10uF 16V K NCB31CK-104X C CAPACITOR 0.1uF 16V K...
  • Page 30 Ref No. Part No. Part Name Description Local Ref No. Part No. Part Name Description Local C272 NCB31HK-104X C CAPACITOR 0.1uF 50V K C755 NCB31HK-104X C CAPACITOR 0.1uF 50V K C273 NCB31HK-104X C CAPACITOR 0.1uF 50V K C756 NCB31HK-104X C CAPACITOR 0.1uF 50V K C274 NCB31AK-105X...
  • Page 31 Ref No. Part No. Part Name Description Local Ref No. Part No. Part Name Description Local R111 NRSA63J-330X MG RESISTOR 33Ω 1/16W J R220 NRSA63J-392X MG RESISTOR 3.9kΩ 1/16W J R112 NRSA63J-330X MG RESISTOR 33Ω 1/16W J R221 NRSA63F-562X MG RESISTOR 5.6kΩ...

  • Page 32: Control P.w. Board Ass'y (Sft-7251A-U2)

    Ref No. Part No. Part Name Description Local Ref No. Part No. Part Name Description Local R335 NRSA63J-823X MG RESISTOR 82kΩ 1/16W J NQR0155-003X FERRITE CORE R336 NRSA63J-391X MG RESISTOR 390Ω 1/16W J FB10 NRSA02J-0R0X MG RESISTOR 0Ω 1/10W J R337 NRSA63J-471X MG RESISTOR...

  • Page 33: Ir P.w. Board Ass'y (Sft-8951A-U2)

    IR P.W. BOARD ASS'Y (SFT-8951A-U2) Ref No. Part No. Part Name Description Local Ref No. Part No. Part Name Description Local C9509 QEHR1HM-336Z E CAPACITOR 33uF 50V M QCZ9071-471 C CAPACITOR 470pF AC400V K C9512 IC8001 KSM-2013TC2EL IR DETECT UNIT C9514 QCB31HK-471Z C CAPACITOR...

  • Page 34: Printed Wiring Board Parts List [Lt-32A70Bj, Lt-32A70Bu, Lt-32A70Gu, Lt-32A70Sj, Lt-32A70Su]

    PRINTED WIRING BOARD PARTS LIST [LT-32A70BJ, LT-32A70BU, LT-32A70GU, LT-32A70SJ, LT-32A70SU] Ref No. Part No. Part Name Description Local MAIN P.W. BOARD ASS'Y (SFT-1052A-U2) Ref No. Part No. Part Name Description Local UDZW8.2B-X Z DIODE UDZW8.2B-X Z DIODE UDZW5.6B-X Z DIODE EDD1232AABH-6B UDZW5.6B-X Z DIODE...
  • Page 35 Ref No. Part No. Part Name Description Local Ref No. Part No. Part Name Description Local NCB31CK-104X C CAPACITOR 0.1uF 16V K C165 NCJ21CK-106X-R C CAPACITOR 10uF 16V K NCB31CK-104X C CAPACITOR 0.1uF 16V K C166 NCJ21CK-106X-R C CAPACITOR 10uF 16V K NCB31CK-104X C CAPACITOR 0.1uF 16V K...
  • Page 36 Ref No. Part No. Part Name Description Local Ref No. Part No. Part Name Description Local C272 NCB31HK-104X C CAPACITOR 0.1uF 50V K C755 NCB31HK-104X C CAPACITOR 0.1uF 50V K C273 NCB31HK-104X C CAPACITOR 0.1uF 50V K C756 NCB31HK-104X C CAPACITOR 0.1uF 50V K C274 NCB31AK-105X...
  • Page 37 Ref No. Part No. Part Name Description Local Ref No. Part No. Part Name Description Local R111 NRSA63J-330X MG RESISTOR 33Ω 1/16W J R220 NRSA63J-392X MG RESISTOR 3.9kΩ 1/16W J R112 NRSA63J-330X MG RESISTOR 33Ω 1/16W J R221 NRSA63F-562X MG RESISTOR 5.6kΩ...

  • Page 38: Control P.w. Board Ass'y (Sft-7251A-U2)

    Ref No. Part No. Part Name Description Local Ref No. Part No. Part Name Description Local R335 NRSA63J-823X MG RESISTOR 82kΩ 1/16W J NQR0155-003X FERRITE CORE R336 NRSA63J-391X MG RESISTOR 390Ω 1/16W J FB10 NRSA02J-0R0X MG RESISTOR 0Ω 1/10W J R337 NRSA63J-471X MG RESISTOR...

  • Page 39: Remote Control Unit Parts List (Rm-C1816S-2C)

    Description Local 2AA070311 BATTERY COVER PACKING [LT-26A70BJ, LT-26A70BU, LT-26A70SJ, LT-26A70SU] 11 12 STAND ASS'Y FRONT PACKING PARTS LIST [LT-26A70BJ, LT-26A70BU, LT-26A70SJ, LT-26A70SU]  Ref.No. Part No. Part Name Description Local GA10002-095A-U PACKING CASE GA10180-081A-U EURO LABEL LT-26A70BJ GA10180-078A-U EURO LABEL...

  • Page 40: Packing [Lt-32A70Bj, Lt-32A70Bu, Lt-32A70Gu, Lt-32A70Sj, Lt-32A70Su]

    PACKING [LT-32A70BJ, LT-32A70BU, LT-32A70GU, LT-32A70SJ, LT-32A70SU] 10 11 STAND ASS'Y 13 14 FRONT PACKING PARTS LIST [LT-32A70BJ, LT-32A70BU, LT-32A70GU, LT-32A70SJ, LT-32A70SU]  Ref.No. Part No. Part Name Description Local GA10002-087B-U PACKING CASE GA10180-087A-U EURO LABEL LT-32A70BJ GA10180-084A-U EURO LABEL LT-32A70BU GA10272-074A-U EURO LABEL LT-32A70GU GA10180-086A-U EURO LABEL...
  • Page 41 SCHEMATIC DIAGRAMS WIDE LCD PANEL TELEVISION LT-26A70BJ, LT-26A70BU, LT-26A70SJ, LT-26A70SU, LT-32A70BJ, LT-32A70BU, LT-32A70GU, LT-32A70SJ, LT-32A70SU CD-ROM No.SML200611 BASIC CHASSIS No.YA492 COPYRIGHT © 2006 Victor Company of Japan, Limited. 2006/11...

  • Page 42: Standard Circuit Diagram

    LT-26A70BJ LT-26A70BU LT-26A70SJ LT-26A70SU LT-32A70BJ LT-32A70BU LT-32A70GU LT-32A70SJ LT-32A70SU STANDARD CIRCUIT DIAGRAM NOTE ON USING CIRCUIT DIAGRAMS 1.SAFETY Type No indication : Ceramic capacitor The components identified by the symbol and shading are : Metalized mylar capacitor critical for safety. For continued safety replace safety ciritical : Polypropylene capacitor components only with manufactures recommended parts.
  • Page 43 POWER PWB PATTERN .......................... 2-23 CONTROL PWB PATTERN ........................2-24 IR PWB PATTERN ............................ 2-24 VOLTAGE CHARTS .................. 2-25 WAVEFORMS .................... 2-26 USING P.W. BOARD PWB ASS'Y name LT-26A70BJ LT-26A70BU LT-26A70SJ LT-26A70SU MAIN P.W. BOARD SFT-1051A-U2 CONTROL P.W. BOARD SFT-7251A-U2 IR P.W.

  • Page 44: Wiring Diagram

    WIRING DIAGRAM LCD PANEL UNIT [CONTROL PWB: J1] LCD PANEL UNIT [INVERTER PWB:CN1] CN00A CN0LV2 CN00F CN00R CN00U CN0LR U/V TUNER MAIN PWB F9001 250V/6.3A SPEAKER (L) SPEAKER (R) POWER PWB CONTROL POWER CORD IR PWB (No.YA492)2-3 2-4(No.YA492)

  • Page 45: Block Diagram

    BLOCK DIAGRAM MAIN PWB TU_CVBS CVBS1 AUDIO OUT TUNER SIF OUT SDRAM LCD PANEL EXT-1 SC1_CVBS_IN V1_IN Y_G3 SC1_CVBS_OUT VTV_OUT CVBS_OUT1 YS_IN SC2_R,G,B R_IN G_IN PB_B3 B_IN CVBS_OUT2 SC1_AL/AR_IN L1/R1_IN SC1_AL/AR_OUT LTV/RTV_OUT VIDEO SC_R SIGNAL PR_R2 SELECT EXT-2 SC_G & Y_G2 (for HDMI) SC2_CVBS_IN...

  • Page 46: Circuit Diagrams

    CIRCUIT DIAGRAMS MAIN PWB CIRCUIT DIAGRAM (1/4) SHEET1 MAIN PWB ASS'Y(1/4) SFT-1051A-U2 [LT-26A70BJ, LT-26A70BU, LT-26A70SJ, LT-26A70SU] SFT-1052A-U2 [LT-32A70BJ, LT-32A70BU, LT-32A70GU, LT-32A70SJ, LT-32A70SU] L603 SP_VCC C621 C622 C625 0.33 .1/25 C624 SP.GND 0.22 L604 C620 U/V TUNER C626 C623 OPEN OPEN IC601 0.22...
  • Page 47 MAIN PWB CIRCUIT DIAGRAM (2/4) SHEET 2 MAIN PWB ASS'Y(2/4) SHEET 1 SHEET 1,3 SFT-1051A-U2 [LT-26A70BJ, LT-26A70BU, LT-26A70SJ, LT-26A70SU] SFT-1052A-U2 [LT-32A70BJ, LT-32A70BU, LT-32A70GU, LT-32A70SJ, LT-32A70SU] SC1_CVBS_IN SC1_AR_IN SC1_AL_IN SC2_AR_IN .1/16 SC2_AL_IN SC1_AR_OUT R261 C215 C211 .1/16 R169 SC1_AL_OUT 470p OPEN...
  • Page 48 MAIN PWB CIRCUIT DIAGRAM (3/4) SHEET 3 MAIN PWB ASS'Y(3/4) SFT-1051A-U2 [LT-26A70BJ, LT-26A70BU, LT-26A70SJ, LT-26A70SU] SHEET 4 SFT-1052A-U2 [LT-32A70BJ, LT-32A70BU, LT-32A70GU, LT-32A70SJ, LT-32A70SU] PX_VD_3V3 R147 R294 3.3k OPEN C314 R101 OPEN OPEN OPEN CN00A FB31 R291 3V3_SB 3V3_SB OPEN R322...
  • Page 49 MAIN PWB ASS'Y(4/4) MAIN PWB CIRCUIT DIAGRAM (4/4) SHEET 4 SFT-1051A-U2 [LT-26A70BJ, LT-26A70BU, LT-26A70SJ, LT-26A70SU] SHEET 2 SFT-1052A-U2 [LT-32A70BJ, LT-32A70BU, LT-32A70GU, LT-32A70SJ, LT-32A70SU] PX_AVCC PX_HDMI_3V3 PX_VD_1V8 PX_VD_1V8 PX_VD_1V8 PX_VDDMQ PX_VD_1V8 .1/16 .1/16 .1/16 R143 C173 22/16 C116 C115 C109 C174 C110 .01/16...

  • Page 50: Power Pwb Circuit Diagram

    POWER PWB CIRCUIT DIAGRAM SHEET 5 LCD PANEL UNIT [INVERTER PWB:CN1] CN900P CN900Q OPEN CN900W K9512 K9513 GND5 K9514 K9515 L9501 OPEN Y9001 OPEN GND5 GND1 C9002 R9006 Y9002 OPEN F9001 C9001 OPEN C9513 Y9504 L9001 CN90PW LF9001 LF9002 LF9003 R9001 Y9503 GND5...

  • Page 51: Control Pwb Circuit Diagram

    CONTROL PWB CIRCUIT DIAGRAM SHEET 6 IR PWB CIRCUIT DIAGRAM SHEET 7 IR PWB ASS'Y SFT-8951A-U2 CONTROL PWB ASS'Y SFT-7251A-U2 J7001 R8004 CN70R D8001 R7001 R8003 MAIN PWB Q8001 (1/4) CN00R K7008 D7001 D7002 D7003 C7002 C7001 SHEET 1 IC8001 CN80U D8002 R8001...

  • Page 52: Pattern Diagrams

    PATTERN DIAGRAMS MAIN PWB PATTERN [SOLDER SIDE] CN00A C742 C622 C742 C743 C743 C754 C744 C730 C744 C725 C729 C723 C721 IP_CN00F_1 C759 C723 C722 IP_CN00F_2 C618 IP_CN00F_3 IP_CN00F_4 Y601 Y601 R608 R608 Y602 R609 Y602 R609 C779 #PC00015 #PC00011 Y603 C711 IP_CN00F_5...
  • Page 53 MAIN PWB PATTERN [PARTS SIDE] C760 C281 FB16 IC14 FB61 L603 L604 C760 FB16 C275 FB61 C762 C282 CN00A Q606 R617 C741 FB41 C237 R618 R606 FB62 R322 C293 R279 R617 C278 C741 FB28 FB42 C293 Q604 FB41 R618 CN0LV2 C280 C726 IC16...

  • Page 54: Power Pwb Pattern

    POWER PWB PATTERN CONTROL PWB PATTERN L9501 C9528 R9534 Y9504 Y9503 Q9505 R9532 C9520 C9519 C9521 R9527 C7002 K7008 S7006 D9520 L9503 W9404 R7003 W7005 W7004 R7005 R7006 D9518 W9405 S7002 S7003 S7007 S7005 L9502 J7001 S7004 S7001 R7001 D7003 W9408 L9504 H9503...

  • Page 55: Voltage Charts

    WAVEFORMS VOLTAGE CHARTS <IR PWB> MAIN PWB (1/4) <MAIN PWB> [P.2-7 - P.2-8] [P.2-17 - P.2-18] (SHEET1) MODE MODE MODE MODE MODE MODE MODE MODE MODE MODE MODE DC (V) DC (V) DC (V) DC (V) DC (V) DC (V) DC (V) DC (V) DC (V)
  • Page 56 Victor Company of Japan, Limited Display Category 12, 3-chome, Moriya-cho, kanagawa-ku, Yokohama-city, kanagawa-prefecture, 221-8528, Japan (No.YA492) Printed in Japan...

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