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JVC AV-N29304/RA Service Manual

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SERVICE MANUAL
04
2003
52129
AV-N29304
AV-N29430
1
PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2
SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
3
ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12
COLOR TELEVISION
/RA
/RA
AV-N29304
TABLE OF CONTENTS
COPYRIGHT © 2003 VICTOR COMPANY OF JAPAN, LTD.
, AV-N29304
, AV-N29430
AV-N29304
AV-N29430
BASIC CHASSIS
,
/SA
FE2
/SA
AV-N29430
No.52129
2003/04

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Summary of Contents for JVC AV-N29304/RA

  • Page 1 AV-N29304 AV-N29430 SERVICE MANUAL COLOR TELEVISION 52129 2003 BASIC CHASSIS AV-N29304 , AV-N29304 AV-N29430 , AV-N29430 AV-N29304 AV-N29430 TABLE OF CONTENTS PRECAUTIONS ............... 1-3 SPECIFIC SERVICE INSTRUCTIONS .
  • Page 2 AV-N29304 AV-N29430 SPECIFICATION Contents Items AV-N29304 AV-N29430 Dimensions (W x H x D) 75.2cm x 59.0cm x 53.1cm 65.4cm x 59.3cm x 49.4cm (29-5/8” x 23-1/4” x 23”) (25-3/4” x 23-3/8” x 19-1/2”) Mass 32.2kg (70.8 Ibs) 31.1kg (68.5 Ibs) TV RF System CCIR(M) Color Sound System...
  • Page 3 AV-N29304 AV-N29430 SECTION 1 PRECAUTIONS SAFETY PRECAUTIONS (1) The design of this product contains special hardware, many (10) Isolation Check (Safety for Electrical Shock Hazard) circuits and components specially for safety purposes. For After re-assembling the product, always perform an isolation continued protection, no changes should be made to the original check on the exposed metal parts of the cabinet (antenna design unless authorized in writing by the manufacturer.

  • Page 4: Specific Service Instructions

    AV-N29304 AV-N29430 SECTION 2 SPECIFIC SERVICE INSTRUCTIONS 2.1 FEATURES • Title TELE-TEXT broadcast of C1~C4 and T1~T4 formula is receivable. • By the three-line digital comb filter, the refreshed image can be seen. • Expression of a favorite screen can be chosen by the VIDEO STATUS function (STANDARD-DYNAMIC-THEATER / SPORTS- GAME).
  • Page 5 AV-N29304 AV-N29430 2.4 FUNCTIONS [FRONT PANEL] <AV-N29304> MENU CHANNEL VOLUME POWER <AV-N29430> POWER MENU CHANNEL VOLUME [REAR PANEL] <AV-N29304> <AV-N29430> [REMOTE CONTROL UNIT] AV-N29304 (RM-C1255G) AV-N29430 (RM-C203) (No.52129)1-5...
  • Page 6 AV-N29304 AV-N29430 2.5 DISASSEMBLY PROCEDURE 2.5.1 REMOVING THE REAR COVER [AV-N29304] 2.5.6 CHECKING THE PW BOARD (1) Unplug the power plug. (1) Pull out the MAIN PWB (refer to REMOVING THE MAIN (2) Remove the 11 screws [A] (Fig.1). PWB). (3) Remove the 4 screws [B] (Fig.1).
  • Page 7 AV-N29304 AV-N29430 [AV-N29304] FRONT CABINET SPEAKER CRT SOCKET PWB (Within MAIN PWB) TUNER MAIN PWB SPEAKER PWB STOPPER REAR COVER POWER CORD Fig.1 (No.52129)1-7...
  • Page 8 AV-N29304 AV-N29430 [AV-N29430] FRONT CABINET CRT SOCKET PWB (Within MAIN PWB) SPEAKER MAIN PWB TUNER REAR COVER PWB STOPPER POWER CORD Fig.2 1-8 (No.52129)
  • Page 9 AV-N29304 AV-N29430 2.6 MEMORY IC REPLACEMENT 2.6.1 MEMORY IC This TV use memory IC. In the memory IC, there are memorized data for correctly operating the video and deflection circuits. When replacing the memory IC, be sure to use IC written with the initial values of data. 2.6.2 PROCEDURE FOR REPLACING MEMORY IC (1) Power off Switch the power off and unplug the power cord from the out-...
  • Page 10 AV-N29304 AV-N29430 2.6.3 USER SETTING VALUES Setting item Setting value Setting item Setting value REMOTE CONTROL UNIT KEY POWER VIDEO STATUS DYNAMIC CHANNEL CH-02 HYPER SURROUND VOLUME GAME TV/VIDEO DISPLAY SETTING OF MENU PICTURE MODE INITIAL SETUP MODE TINT Center LANGUAGE COLOR Center...
  • Page 11 AV-N29304 AV-N29430 2.7 REPLACEMENT OF CHIP COMPONENT 2.7.1 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.
  • Page 12 AV-N29304 AV-N29430 SECTION 3 ADJUSTMENT 3.1 ADJUSTMENT PREPARATION (1) There are 2 ways of adjusting this TV : One is with the REMOTE CONTROL UNIT and the other is the conventional method using adjustment parts and components. (2) The adjustment using the REMOTE CONTROL UNIT is made on the basis of the initial setting values. The setting values which adjust the screen to the optimum condition can be different from the initial setting values.

  • Page 13: Main Pwb

    AV-N29304 AV-N29430 3.3 ADJUSTMENT LOCATIONS CRT SOCKET PWB (Within MAIN PWB ASS'Y) TP-B CRT EARTH (BRAIDED ASS'Y) TP-E (SOLDER SIDE) FRONT MAIN PWB VOL+ VOL- MENU POWER POWER MEMORY IC702 F901 IC201 T111 IC101 S401 TUNER UPPER : FOCUS AV IN / OUT LOWER : SCREEN (No.52129)1-13...
  • Page 14 AV-N29304 AV-N29430 3.4 BASIC OPERATION OF SERVICE MENU 3.4.1 TOOL OF SERVICE MENU OPERATION Operate the SERVICE MENU with the REMOTE CONTROL UNIT. 3.4.2 SERVICE MENU ITEMS With the SERVICE MENU, various adjustments can be made, and they are broadly classified in the following items of settings. 1.
  • Page 15 AV-N29304 AV-N29430 3.4.3.3 SETTING METHOD [1.V/C(S) ADJUSTMENT MODE] For example, adjust the 1.V/C(S) by using the REMOTE CONTROL UNIT. 1) Press the [CHANNEL (-/+)] keys to select the one of setting item from S01 BRIGHT to S21 AGC ADJ. 2) Press the [VOLUME (-/+)] keys to change the setting value. The setting value will be stored automatically when release the REMOTE CONTROL UNIT keys.
  • Page 16 AV-N29304 AV-N29430 3.5 INITIAL SETTING VALUE OF SERVICE MENU (1) Adjustment of the service menu is made on the basis of the initial setting values. however, the new setting values which displays on the screen in its optimum condition may differ from the initial setting value. (2) Do not change the initial setting values of the items not listed in "ADJUSTMENT PROCEDURE".
  • Page 17 AV-N29304 AV-N29430 3.5.2 [2.DEF] Initial setting value Setting item Variable range EXTERNAL (SV, CV) AFC GAIN H POSI 0~31 10 (/RA model) / 9 (/SA model) 10(/RA model) / 9 (/SA model) V SIZE 0~125 V S CORR 0~15 3 (/RA model) / 4 (/SA model) 3 (/RA model) / 4 (/SA model) V LIN 0~15...
  • Page 18 AV-N29304 AV-N29430 3.6 ADJUSTMENT PROCEDURE 3.6.1 CHECK ITEM Measuring Item Test point Adjustment part Description instrument B1 POWER DC voltmeter B1 Connector (1) Receive the black-and-white signal. (color off) SUPPLY 1-pin : TP-91 (2) Connect the DC voltmeter to TP-91 (B1 connector 1 Signal 3-pin : TP-E pin) and TP-E (B1 connector 3 pin).
  • Page 19 AV-N29304 AV-N29430 3.6.5 DEFLECTION CIRCUIT Measuring Item Test point Adjustment part Description instrument V. SIZE & Signal [2.DEF(D)] (1) Receive the crosshatch signal. V. CENTER generator D03 : V SIZE (2) Select the <D03>(V SIZE). (3) Adjust the <D03> so that the vertical screen size Remote V.
  • Page 20 AV-N29304 AV-N29430 3.6.6 VIDEO CIRCUIT Measuring Item Test point Adjustment part Description instrument WHITE Signal [7.LOW LIGHT] (1) Receive the black-and-white signal (color off). BALANCE generator (2) Select the 7.LOW LIGHT in the SERVICE MENU. (LOW LIGHT) [1.V/C(S)] (3) Set the initial setting value of <S11>(R CUTOFF), Remote S11 : R CUTOFF <S12>(G CUTOFF), <S13>(B CUTOFF) and...
  • Page 21 AV-N29304 AV-N29430 Measuring Item Test point Adjustment part Description instrument WHITE Signal [8.HIGH LIGHT] (1) Receive the black-and-white signal (color off). BALANCE generator S14 : R DRIVE (2) Select the 8.HIGH LIGHT in the SERVICE MENU. (HIGH LIGHT) S15 : B DRIVE (3) Set the initial setting value of <S14>(R DRIVE) and Remote <S15>(B DRIVE) with the [4], [6], [7] and [9] keys of...
  • Page 22 AV-N29304 AV-N29430 Measuring Item Test point Adjustment part Description instrument SUB COLOR Signal TP-B [1.V/C(S)] [ Method of adjustment without measuring instrument ] generator TP-E S03 : COLOR (1) Receive the broadcast. [CRT SOCKET (2) Select <S03>(COLOR) of the 1.V/C(S). Oscilloscope PWB] (3) Set the initial setting value of the <S03>...
  • Page 23 AV-N29304 AV-N29430 Measuring Item Test point Adjustment part Description instrument SUB TINT Signal TP-B [1.V/C(S)] [ Method of adjustment without measuring instrument ] generator TP-E S04 : TINT (1) Receive the broadcast. [CRT SOCKET (2) Select <S04>(TINT) of the 1.V/C. Oscilloscope PWB] (3) Set the initial setting value of the <S04>...
  • Page 24 AV-N29304 AV-N29430 3.6.7 MTS CIRCUIT Measuring Item Test point Adjustment part Description instrument MTS INPUT Remote [3.SOUND(A)] (1) Select the <A01>(IN LEVEL) of the 3.SOUND. LEVEL control unit A01 : IN LEVEL (2) Verify that the <A01> is set at its initial setting value. Variable Initial setting Setting item...
  • Page 25 AV-N29304 AV-N29430 3.6.8 HOW TO CHECK THE HIGH VOLTAGE HOLD DOWN CIRCUIT 3.6.8.1 HIGH VOLTAGE HOLD DOWN CIRCUIT After repairing the high voltage hold down circuit. This circuit shall be checked to operate correctly. 3.6.8.2 CHECKING OF THE HIGH VOLTAGE HOLD DOWN CIRCUIT (1) Turn the power switch to on.
  • Page 26 AV-N29304 AV-N29430 VICTOR COMPANY OF JAPAN, LIMITED AV & MULTIMEDIA COMPANY DISPLAY CATEGORY 12, 3-chome, Moriya-cho, kanagawa-ku, Yokohama, kanagawa-prefecture, 221-8528, Japan (No.52129) Printed in Japan...

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Av-n29430/raAv-n29430/saAv-n29304/saAv-n29304Av-n29430