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Instruction Manual
SERVICE MANUAL
WIDE LCD PANEL TELEVISION
1
PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2
SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
3
DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12
4
ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16
5
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16
10
2005
YA306
LT-15B60SJ,
LT-15B60SW
TABLE OF CONTENTS
COPYRIGHT © 2005 Victor Company of Japan, Limited
No.YA306
2005/10
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Summary of Contents for JVC LT-15B60SJ
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Page 1: Table Of Contents
WIDE LCD PANEL TELEVISION YA306 2005 LT-15B60SJ, LT-15B60SW TABLE OF CONTENTS PRECAUTION............... . . 1-3 SPECIFIC SERVICE INSTRUCTIONS . - Page 2 SPECIFICATION Items Contents Dimensions ( W × H × D ) 48.9cm × 35.3cm × 18.3cm [Included stand] 48.9cm × 30.4cm × 6.2cm [TV only] Mass 7.5kg [Included stand] 6.0kg [TV only] Power Input DC12V AC220 ~ 240V 50Hz Power Consumption 41W (Standby: 3.0W) TV RF System CCIR (B/G, DK, I, L)
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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 NOTES ON HANDLING If the heat dissipation vent behind this unit is blocked, cooling (1) WHEN TAKING UNIT OUT OF A PACKING CASE efficiency may deteriorate and temperature inside the unit will When taking the unit out of a packing case, do not grasp 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.
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Page 7: Specific Service Instructions
SECTION 2 SPECIFIC SERVICE INSTRUCTIONS FEATURES ZOOM COLOUR SYSTEM This function can change the screen size according to the If the picture is not clear or no colour appears, change the picture aspect ratio. current colour system to another colour system. OFF TIMER This function can set the TV to automatically turn off after a set time. - Page 8 TECHNICAL INFORMATION 2.3.1 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 9 BASIC OPERATION OF UOCIII SERVICE MODE 2.4.5 UOCIII SERVICE MODE SETTING ITEMS 2.4.1 HOW TO ENTER THE UOCIII SERVICE MODE Item Setting Setting items Function (1) Press [MENU] key. value (2) Press the [4], [7], [2] and [5] key, and UOCIII SERVICE 000 EurAsia TVSub 05.01 MODE screen will be displayed.
- Page 10 Item Setting Item Setting Setting items Function Setting items Function value value 037 PeakFreqNTSCM 082 LSCAL NIC 038 PeakFreqSECAM 083 LSCAL SAP 039 PeakFreqAV 084 E2D 040 Blackstretch 085 FFI 041 Bluestretch 086 CMUTE 042 Whitestretch 087 PA-BA-VO 043 Transfer Rato 088 PA-TR-VO 044 PeakRatioOvShot 089 PA-LM-VO...
- Page 11 BASIC OPERATION OF PW SERVICE MODE Item Setting Setting items Function value 2.5.1 HOW TO ENTER THE PW SERVICE MODE (1) Press [MENU] key. 127 AV2-IN (2) Press the [4], [7], [2] and [6] key, and PW SERVICE 128 DVD2-IN MODE screen will be displayed.
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Page 12: Disassembly
SECTION 3 DISASSEMBLY DISASSEMBLY PROCEDURE NOTE: • 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 13 INVERTER UNIT MAIN PWB LCD PANEL UNIT SCART BRACKET MAIN FRAME SIDE AV DOOR BACK COVER AV JACK AV JACK BRACKET LED PWB SOCKET HANG DOOR METAL SPEAKER (X2) HINGE COVER FRONT CONTROL FUNCTION BUTTON METAL HINGE BRACKET FRONT PANEL FOOT SUPPORT FOOT ASSEMBLY (No.YA306)1-13...
- Page 14 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 SETTINGS OF FACTORY SHIPMENT 3.2.1.1 BUTTON OPERATION 3.2.1.2...
- 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.
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Page 16: Adjustment
SECTION 4 ADJUSTMENT This service manual does not describe ADJUSTMENT. SECTION 5 TROUBLESHOOTING This service manual does not describe TROUBLESHOOTING. 1-16 (No.YA306) - Page 17 Victor Company of Japan, Limited AV & MULTIMEDIA COMPANY DISPLAY CATEGORY 12, 3-chome, Moriya-cho, Kanagawa-ku, Yokohama-city, Kanagawa-prefecture, 221-8528, Japan (No.YA306) Printed in Japan...
- Page 18 SCHEMATIC DIAGRAMS WIDE LCD PANEL TELEVISION YA306 2005 LT-15B60SJ, LT-15B60SW CD-ROM No.SML200510 No.YA306 COPYRIGHT © 2005 Victor Company of Japan, Limited 2005/10...
- Page 19 LT-15B60SJ, LT-15B60SW STANDARD CIRCUIT DIAGRAM NOTE ON USING CIRCUIT DIAGRAMS 1.SAFETY Type The components identified by the symbol and shading are No indication : Ceramic capacitor critical for safety. For continued safety replace safety ciritical : Metalized mylar capacitor : Polypropylene capacitor components only with manufactures recommended parts.
- Page 20 MAIN PWB PATTERN ..........................2-17 AV JACK PWB PATTERN ........................2-21 FRONT CONTROL PWB PATTERN ......................2-21 LED PWB PATTERN ..........................2-22 USING P.W. BOARD P.W.B ASS’Y name LT-15B60SJ LT-15B60SW VE-20215170 MAIN P.W. BOARD VE-20214331 FRONT CONTROL P.W. BOARD VE-20214317 AV JACK P.W.
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Page 21: Block Diagram
BLOCK DIAGRAM RF in UOCIII VFIN (24,25) S-Video in Y4(51) C4(52 ) CVBS in CVBS3/Y3(58) AUDIOIN5L(34) AUDIOIN5R(35) C2(59) Scart CVBS2/Y2(55) IFVO(43) AUDIO UTS L(36) AUDIOUTSR(37) AUDIOIN3L(56) AUDIOIN3R(57) TV_HS Audio in TV_VS 74HC14 VDRA,HOUT(23,67) HP DRIVER AUDOUTHP[L,R](62,63) FBLIN TDA1308 FBLIN [R,G,B]IN R,G,B(78,79,80) AUDIO CTI/... - Page 22 2-4(No.YA306)
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Page 23: Circuit Diagrams
CIRCUIT DIAGRAMS MAIN PWB CIRCUIT DIAGRAM (1/5) MAIN PWB ASS'Y(1/5) VE-20215170 17mb18-4_0527_1/5_0.0 (No.YA306)2-5 2-6(No.YA306) - Page 24 MAIN PWB CIRCUIT DIAGRAM (2/5) MAIN PWB ASS'Y(2/5) VE-20215170 17mb18-4_0527_2/5_0.0 (No.YA306)2-7 2-8(No.YA306)
- Page 25 MAIN PWB CIRCUIT DIAGRAM (3/5) MAIN PWB ASS'Y(3/5) VE-20215170 17mb18-4_0527_3/5_0.0 (No.YA306)2-9 2-10(No.YA306)
- Page 26 MAIN PWB CIRCUIT DIAGRAM (4/5) MAIN PWB ASS'Y(4/5) VE-20215170 17mb18-4_0527_4/5_0.0 (No.YA306)2-11 2-12(No.YA306)
- Page 27 MAIN PWB CIRCUIT DIAGRAM (5/5) MAIN PWB ASS'Y(5/5) VE-20215170 17mb18-4_0527_5/5_0.0 (No.YA306)2-13 2-14(No.YA306)
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Page 28: Av Jack Pwb Circuit Diagram
FRONT CONTROL PWB CIRCUIT DIAGRAM AV JACK PWB CIRCUIT DIAGRAM FRONT CONTROL PWB ASS'Y VE-20214331 LED PWB CIRCUIT DIAGRAM LED PWB ASS'Y VE-20214319 AV JACK PWB ASS'Y VE-20214317 (No.YA306)2-15 2-16(No.YA306) -
Page 29: Pattern Diagrams
PATTERN DIAGRAMS MAIN PWB PATTERN [SOLDER SIDE] (No.YA306)2-17 2-18(No.YA306) - Page 30 MAIN PWB PATTERN [PARTS SIDE] (No.YA306)2-19 2-20(No.YA306)
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Page 31: Av Jack Pwb Pattern
AV JACK PWB PATTERN [SOLDER SIDE] AV JACK PWB PATTERN [PARTS SIDE] FRONT CONTEROL PWB PATTERN [SOLDER SIDE] FRONT FRONT CONTEROL PWB PATTERN [PARTS SIDE] FRONT (No.YA306)2-21... -
Page 32: Led Pwb Pattern
LED PWB PATTERN [SOLDER SIDE] LED PWB PATTERN [PARTS SIDE] 2-22(No.YA306) - Page 33 Victor Company of Japan, Limited AV & MULTIMEDIA COMPANY DISPLAY CATEGORY 12, 3-chome, Moriya-cho, Kanagawa-ku, Yokohama-city, Kanagawa-prefecture, 221-8528, Japan (No.YA306) Printed in Japan...
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Page 34: 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 35: Exploded View Parts List
EXPLODED VIEW PARTS LIST ..........................3-2 EXPLODED VIEW ............................... 3-3 PRINTED WIRING BOARD PARTS LIST ........................3-4 PACKING ..................................3-9 PACKING PARTS LIST ............................... 3-9 USING P.W. BOARD & REMOTE CONTROL UNIT P.W.B ASS'Y LT-15B60SJ LT-15B60SW ← MAIN P.W.B VE-20215170 ← FRONT CONTROL P.W.B VE-20214331 ←... -
Page 36: Exploded View
EXPLODED VIEW (X2) (X5) (No.YA306)3-3... -
Page 37: Printed Wiring Board Parts List
PRINTED WIRING BOARD PARTS LIST Ref No. Part No. Part Name Description Local Ref No. Part No. Part Name Description Local C101 VE-30012603 CAPACITOR 100nF 25V K R C102 VE-30012560 CAPACITOR 100pF 50V J IC10 VE-30031033 PREAMPLIFIER TFMS5360 C102 VE-30012569 CAPACITOR 33pF 50V J IC100 VE-30027986 IC... - Page 38 Ref No. Part No. Part Name Description Local Ref No. Part No. Part Name Description Local C223 VE-30000345 E CAPACITOR 10uF 50V M C341 VE-30016654 CAPACITOR 100nF 16V K R C225 VE-30012603 CAPACITOR 100nF 25V K R C342 VE-30016654 CAPACITOR 100nF 16V K R C231 VE-30012590 CAPACITOR...
- Page 39 Ref No. Part No. Part Name Description Local Ref No. Part No. Part Name Description Local C501 VE-30016654 CAPACITOR 100nF 16V K R R156 VE-30012692 RESISTOR 1/16W 4.7K J C502 VE-30016654 CAPACITOR 100nF 16V K R R175 VE-30012641 RESISTOR 1/16W 10K J C503 VE-30016654 CAPACITOR 100nF 16V K R...
- Page 40 Ref No. Part No. Part Name Description Local Ref No. Part No. Part Name Description Local R291 VE-30012657 RESISTOR 1/16W 1K J R508 VE-30012641 RESISTOR 1/16W 10K J R292 VE-30012510 RESISTOR 1/16W 100R J R509 VE-30012509 RESISTOR 1/16W 100K J R293 VE-30012510 RESISTOR 1/16W 100R J...
- Page 41 Ref No. Part No. Part Name Description Local PL405 VE-30030582 CONN MALE 6P MOLEX VERTICAL PL406 VE-30030582 CONN MALE 6P MOLEX VERTICAL PL407 VE-30001838 CONN HEADER 3P 2.5MM TOP YELLOW SD PL501 VE-30010030 PIN HEADER (1X2) S187 VE-30041653 FERRITE 60R/100MHz 300mA S188 VE-30041653 FERRITE 60R/100MHz 300mA...
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Page 42: Packing Parts List
PACKING PACKING PARTS LIST Ref.No. Part No. Part Name Description Local VE-50069373 CARTON BOX LT-15B60SJ VE-50069196 CARTON BOX LT-15B60SW VE-20176204 SNOW BOX (FRONT) VE-20176203 SNOW BOX (BACK) VE-30039453 REMOTE CONTROL UNIT (RM-C1861) VE-30034459 AC ADAPTOR DC12V 4A VE-30002376...