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SERVICE MANUAL
2
2005
YA086
1
PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
2
SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
3
DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
4
ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10
5
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-20
COLOUR TELEVISION
AV-29QH4BU,
AV-29QH4SU
1
2
3
4
5
6
7
8
9
0
ZOOM
PICTURE
P
AV
MENU
P
?
VCR
DVD
RM-C1512
TV
TABLE OF CONTENTS
COPYRIGHT © 2005 Victor Company of Japan, Limited
No.YA086
2005/2
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Table of Contents
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Summary of Contents for JVC AV-29QH4BU
- Page 1 SERVICE MANUAL COLOUR TELEVISION YA086 2005 AV-29QH4BU, AV-29QH4SU ZOOM PICTURE MENU RM-C1512 TABLE OF CONTENTS PRECAUTION............... . . 1-4 SPECIFIC SERVICE INSTRUCTIONS .
- Page 2 500mV(rms) (-4dBs), High Impedance, RCA pin jack × 2 Audio (L/R) Headphone jack Stereo mini jack 3.5mm VE-30021286 (RM-C1512B) (AA/R06 dry battery × 2) [AV-29QH4BU] Remote Control Unit VE-30021287 (RM-C1512S) (AA/R06 dry battery × 2) [AV-29QH4SU] Design & specifications are subject to change without notice.
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Page 3: Specific Service Instructions
• Direct channel access. itself automatically to stand-by mode. • APS (Automatic Programming System). • WSS (Wide Screen Signaling) • All programs can be named. MAIN DIFFERENCE LIST Items AV-29QH4BU AV-29QH4SU CABINET COLOUR BLACK SILVER REMOTE CONTROL UNIT VE-30021286 (RM-C1512B) VE-30021287 (RM-C1512S) (No.YA086)1-5... - Page 4 SECTION 3 DISASSEMBLY DISASSEMBLY PROCEDURE 3.1.1 REMOVING THE REAR COVER 3.1.9 REMOVING THE WOOFER & TWEETER (1) Unplug the power cord. • Removing the REAR COVER. (2) Remove the 8 screws [A]. (1) Remove the 4 screws [I], and remove the WOOFER. (3) Remove the 4 screw [B].
- Page 5 (x8) REAR COVER (x4) PICTURE TUBE CRT SOCKET SIDE CONTROL PWB (x2) AV & HEADPHONE FEATURE BOX PWB (x3) POWER SWICTH PWB (x2) (x2) (x2) LED PWB (x2) (x4) (x4) MAIN PWB SPEAKE (WOOFER) FRONT CABINET BACK DOOR (x2) SPEAKE (TWEETER) CHASSIS FRAME Fig.1...
- Page 6 SETTING OF THE LAST MEMORY FOR SHIPMENT 3.2.1 USER SETTING VALUES Setting item Setting value Setting item Setting value PICTURE MENU INSTALL BRIGHTNESS LANGUAGE ENGLISH CONTRAST COUNTRY Other These adjust are automatically COLOUR EXT-2 OUTPUT restored when APS bit in SHARPNESS Service menu is set.
- Page 7 SECTION 4 ADJUSTMENT ADJUSTMENT PREPARATION (1) You can make the necessary adjustments for this unit with Setting item Setting value either the Remote Control Unit or with the adjustment tools BRIGHTNESS and parts as given below. (2) Adjustment with the Remote Control Unit is made on the CONTRAST Center basis of the initial setting values, however, the new setting...
- Page 8 BASIC OPERATION OF SERVICE MODE REMOTE CONTROL UNIT key NAME 4.5.1 HOW TO ENTER THE SERVICE MODE (1) Press the INFORMATION key and MUTING key simultaneously, and the SERVICE MENU 1 screen (Fig.1) will be displayed. MUTE key SERVICE MENU 1 PRODUCTION i >STORE MENU>EXIT...
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Page 9: Service Menu
ANGLE G2Cu access FACTRY SETTINGS TRAPEZ PARAB APSW U.COR L.COR TILT TRPZD NTSCHS TXTV EXT3 HS04_3 JVC******* BLUE key ******* select SERVICE SERVICE Do Not Adjust SERVICE MENU 2 PRODUCTION i >STORE MENU>EXIT ADJUSTMENTS OPTIONS PIP CNTRST 0. HPHONE RED key... - Page 10 ADJUSTMENTS PROCEDURE 4.6.1 FOCUS ADJUSTMENT Measuring Item Test point Adjustment part Description instrument FOCUS Signal FOCUS VR (1) Receive a crosshatch signal. adjustment generator [On the FBT] (2) Adjust FOCUS VR on the FBT as thin as possible. Remote control unit FOCUS VR SCREEN VR 4.6.2 SCREEN ADJUSTMENT...
- Page 11 4.6.4 DEFLECTION CIRCUIT ADJUSTMENT Measuring Item Test point Adjustment part Description instrument VERTICAL Signal V-SHIFT (1) Receive a circle pattern signal. SHIFT generator (2) Enter the SERVICE MODE. adjustment (3) Press the [RED] key to enter the H/V adjustment Remote group.
- Page 12 Measuring Item Test point Adjustment part Description instrument HORIZONTAL Signal H-SHIFT (1) Receive a circle pattern signal. SHIFT generator (2) Enter the SERVICE MODE. adjustment (3) Press the [RED] key to enter the H/V adjustment Remote group. control unit (4) Select H-SHIFT. (5) Adjust H-SHIFT to make C=D.
- Page 13 Measuring Item Test point Adjustment part Description instrument Signal (1) Receive a crosshatch signal. adjustment generator (2) Enter the SERVICE MODE. (3) Press the [RED] key to enter the H/V adjustment Remote group. control unit (4) Select BOW. (5) Adjust BOW until the vertical lines become straight. (6) Check and readjust BOW item if the adjustment becomes improper after some other geometric adjustments are done.
- Page 14 Measuring Item Test point Adjustment part Description instrument CORNER Signal U.COR (1) Receive a crosshatch signal. adjustment generator (2) Enter the SERVICE MODE. L.COR (3) Press the [RED] key to enter the H/V adjustment Remote group. control unit (4) Select U.COR. (5) Adjust U.COR until vertical lines at the upper corners Straight Straight...
- Page 15 Measuring Item Test point Adjustment part Description instrument TELETEXT Signal TXTV (1) Receive a crosshatch signal. VERTICAL generator (2) Enter the SERVICE MODE. SIZE (3) Press the [RED] key to enter the H/V adjustment adjustment Remote group. control unit (4) Select TXTV. (5) Adjust TXTV to adjust the proper vertical size of Teletext screen.
- Page 16 4.6.5 VIDEO CIRCUIT ADJUSTMENT Measuring Item Test point Adjustment part Description instrument WHITE Signal (1) Receive a black & white signal. BALANCE generator (2) Enter the SERVICE MODE. adjustment (3) Press the [GREEN] key to enter the VIDEO Remote adjustment group. control unit (4) Select WdR, WdG and WdB respectively.
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Page 17: Table Of Contents
AV-29QH4BU AV-29QH4SU STANDARD CIRCUIT DIAGRAM CONTENTS BLOCK DIAGRAMS CIRCUIT DIAGRAMS MAIN PWB CIRCUIT DIAGRAM FEATURE BOX PWB CIRCUIT DIAGRAM 2-15 CRT SOCKET PWB CIRCUIT DIAGRAM 2-19 LED PWB CIRCUIT DIAGRAM 2-20 2-20 POWER SWITCH PWB CIRCUIT DIAGRAM SIDE CONTROL PWB CIRCUIT DIAGRAM... -
Page 18: Block Diagram
150V/160V BLOCK DIAGRAM +22V +14V IC804 +14V(audio) SMPS -14V(audio) MC 44608 ACTIVE PFC MC 33260 +3.3V Saw Filter +3.3V (ST-BY) Sound +2.5V (ST-BY) IC750 PROM) D0-D7 TU200 IC954 IC752 MAIN TUNER IC751 SDA5550M 9885/86 (PLL) (MicroController) (EPROM) A0-A18 A0-A18 SRAM HORIZONTAL 30KV Horz. -
Page 19: Circuit Diagrams
CIRCUIT DIAGRAMS MAIN PWB CIRCUIT DIAGRAM (1/4) MAIN PWB ASS'Y (1/4) VE-20159762 (No.YA086)2-5 2-6(No.YA086) - Page 20 MAIN PWB CIRCUIT DIAGRAM (2/4) MAIN PWB ASS'Y (2/4) VE-20159762 (No.YA086)2-7 2-8(No.YA086)
- Page 21 MAIN PWB CIRCUIT DIAGRAM (3/4) MAIN PWB ASS'Y (3/4) VE-20159762 (No.YA086)2-9 2-10(No.YA086)
- Page 22 MAIN PWB CIRCUIT DIAGRAM (4/4) MAIN PWB ASS'Y (4/4) VE-20159762 (No.YA086)2-11 2-12(No.YA086)
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Page 23: Feature Box Pwb Circuit Diagram
FEATURE BOX PWB CIRCUIT DIAGRAM (1/3) FEATURE BOX PWB ASS'Y (1/3) VE-20159754 (No.YA086)2-13 2-14(No.YA086) - Page 24 FEATURE BOX PWB CIRCUIT DIAGRAM (2/3) FEATURE BOX PWB ASS'Y (2/3) VE-20159754 (No.YA086)2-15 2-16(No.YA086)
- Page 25 FEATURE BOX PWB CIRCUIT DIAGRAM (3/3) FEATURE BOX PWB ASS'Y (3/3) VE-20159754 (No.YA086)2-17 2-18(No.YA086)
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Page 26: Crt Socket Pwb Circuit Diagram
CRT SOCKET PWB CIRCUIT DIAGRAM LED PWB CIRCUIT DIAGRAM CRT SOCKET PWB ASS'Y VE-20171200 LED PWB ASS'Y VE-20167318 (No.YA086)2-19 2-20(No.YA086) -
Page 27: Power Switch Pwb Circuit Diagram
POWER SWITCH PWB CIRCUIT DIAGRAM SIDE CONTROL PWB CIRCUIT DIAGRAM SIDE CONTROL PWB ASS'Y VE-20160920 POWER SWITCH PWB ASS'Y VE-20160993 (No.YA086)2-21 2-22(No.YA086) -
Page 28: Av & Headphone Pwb Circuit Diagram
AV & HEADPHONE PWB CIRCUIT DIAGRAM AV & HEADPHONE PWB VE-20169086 (No.YA086)2-23 2-24(No.YA086) -
Page 29: Pattern Diagrams
PATTERN DIAGRAMS MAIN PWB PATTERN FRONT (No.YA086)2-25 2-26(No.YA086) -
Page 30: Feature Box Pwb Pattern
FEATURE BOX PWB PATTERN FRONT (No.YA086)2-27 2-28(No.YA086) -
Page 31: Crt Socket Pwb Pattern
CRT SOCKET PWB PATTERN SIDE CONTROL SOCKET PWB PATTERN AV & HEADPHONE SOCKET PWB PATTERN (No.YA086)2-29 2-30(No.YA086) -
Page 32: Led Pwb Pattern
LED PWB PATTERN POWER PWB PATTERN FRONT (No.YA086)2-31... -
Page 33: Main Pwb Ve-20159762
SIDE CONTROL P.W. BOARD ASS’Y (VE-20160920) ................... 3-10 LED P.W. BOARD ASS’Y (VE-20167318) ....................... 3-10 PACKING ................................... 3-11 PACKING PARTS LIST ............................. 3-11 USING P.W. BOARD & REMOTE CONTROL UNIT P.W.B ASS'Y name AV-29QH4BU AV-29QH4SU ← MAIN P.W.B VE-20159762 ←... -
Page 34: Exploded View Parts List
VE-30017521 within MAIN PWB 1 VE-30015231 ROTATION COIL 2 VE-20153721 LENS PRE-AMP 3 VE-20153568 LED (LENS) 4 VE-20153720 LENS AV-29QH4BU 4 VE-20175570 LENS AV-29QH4SU VE-35000020 SPRING 6 VE-20153719 BUTTON AV-29QH4BU 6 VE-20161162 BUTTON... - Page 35 (x8) (x4) (x4) SIDE CONTROL PWB CRT SOCKET AV & HEADPHONE FEATURE BOX LED PWB MAIN PWB POWER TR101 SWICTH PWB (No.YA086)3-3...
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Page 36: Printed Wiring Board Parts List
PRINTED WIRING BOARD PARTS LIST MAIN P.W. BOARD ASS’Y (VE-20159762) Ref No. Part No. Part Name Description Local Ref No. Part No. Part Name Description Local D802 VE-30001323 DIODE D803 VE-30009366 DIODE IC100 VE-30013687 D804 VE-30009366 DIODE IC105 VE-30001665 D806 VE-30001344 ZENER DIODE IC401... - Page 37 Ref No. Part No. Part Name Description Local Ref No. Part No. Part Name Description Local C247 VE-30012589 SMD CAPACITOR 4.7NF 50V K C848 VE-30016654 SMD CAPACITOR 100NF 16V K R C248 VE-30012607 SMD CAPACITOR 150PF 50V J VE-30000440 CER CAPACITOR 2.2NF 4KV M C850 C249...
- Page 38 Ref No. Part No. Part Name Description Local Ref No. Part No. Part Name Description Local R149 VE-30000660 CF RESISTOR 1/4W 3.3K J. R851 VE-30012659 SMD RESISTOR 1/16W 2.2K J R150 VE-30012665 SMD RESISTOR 1/16W 20K J R852 VE-30012659 SMD RESISTOR 1/16W 2.2K J R151 VE-30012641...
- Page 39 Ref No. Part No. Part Name Description Local Ref No. Part No. Part Name Description Local Z951 VE-30012545 SAW FILTER C416 VE-30012581 SMD CAPACITOR 1NF 50V K R C417 VE-30012565 SMD CAPACITOR 1.8PF 50V J CH C418 VE-30012565 SMD CAPACITOR 1.8PF 50V J CH C419 VE-30012581...
- Page 40 Ref No. Part No. Part Name Description Local Ref No. Part No. Part Name Description Local C643 VE-30000345 EL CAPACITOR 10UF 50V M C781 VE-30016654 SMD CAPACITOR 100NF 16V K R C644 VE-30000345 EL CAPACITOR 10UF 50V M C782 VE-30000413 EL CAPACITOR 4.7UF 50V M C645...
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Page 41: Crt Socket P.w. Board Ass'y (Ve-20171200)
Ref No. Part No. Part Name Description Local Ref No. Part No. Part Name Description Local R658 VE-30012669 SMD RESISTOR 1/16W 22K J R819 VE-30012692 SMD RESISTOR 1/16W 4.7K J R659 VE-30012649 SMD RESISTOR 1/16W 150R J R820 VE-30012641 SMD RESISTOR 1/16W 10K J R660 VE-30012641... -
Page 42: Av &Headphone P.w. Board Ass'y (Ve-20169086)
Ref No. Part No. Part Name Description Local AV &HEADPHONE P.W. BOARD ASS’Y (VE-20169086) Ref No. Part No. Part Name Description Local D907 VE-30001284 DIODE 0.15A/100V 0.5A L902 VE-30001284 DIODE 0.15A/100V 0.5A D100 VE-30001371 ZENER DIODE C900 VE-30000126 MKP CAPACITOR 1NF 630Vdc J D101 VE-30001371... -
Page 43: Packing
PACKING 7 10 PACKING PARTS LIST Ref.No. Part No. Part Name Description Local VE-50051931 CARTON BOX AV-29QH4BU VE-50051954 CARTON BOX AV-29QH4SU VE-20155108 CUSHION ASS’Y 4pcs in 1set VE-50042311 POLY BAG(1300*1100) VE-70000587 POLY BAG VE-30021286 REMOTE CONTROL UNIT (RM-C1512B) AV-29QH4BU...