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SERVICE MANUAL
2
2006
YA370
AV-1406FE, AV-14146
AV-14149
AV-14FMG6
1
PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2
SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
3
DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
4
ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11
5
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-24
COLOUR TELEVISION
, AV-14F16,
/N
TABLE OF CONTENTS
COPYRIGHT © 2006 Victor Company of Japan, Limited
, AV-14FMG6
/G
,
/N
/S
BASIC CHASSIS
CG4
No.YA370
2006/2
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Related Manuals for JVC AV-1406FE
Summary of Contents for JVC AV-1406FE
- Page 1 SERVICE MANUAL COLOUR TELEVISION YA370 2006 AV-1406FE, AV-14146 AV-14149 , AV-14F16, AV-14FMG6 , AV-14FMG6 BASIC CHASSIS TABLE OF CONTENTS PRECAUTION............... . . 1-3 SPECIFIC SERVICE INSTRUCTIONS .
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Page 2: Specification
SPECIFICATION Contents AV-1406FE Items AV-14146/N AV-14FMG6/G AV-14149/N AV-14FMG6/S AV-14F16 Dimensions (W × H × D) 46.2 cm × 34.1 cm × 37.5 cm Mass 10 kg TV RF System B/G, I, D/K B/G, I, D/K, M Colour System SECAM SECAM NTSC 3.58 / NTSC 4.43 (NTSC:EXT only). - Page 3 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 4 LANGUAGE ENGLISH (4) MENU-4 Setting position Setting item BRIGHT STANDARD SOFT TINT COLOUR BRIGHT CONT. SHARP 3.2.3 SYSTEM CONSTANT SETTING Setting value Setting item AV-1406FE AV-14146/N AV-14149/N AV-14F16 AV-14FMG6/G AV-14FMG6/S ← ← ← ← COLOUR TRIPLE MULTI ← ← ←...
- Page 5 3.2.4 SERVICE MENU SETTING ITEMS Setting item Setting value Setting item Setting value 2. V/C 1.CUT OFF 5. PRESET Colour System 1. C-TRAP FIX 2.DRIVE [Do not adjust] 2. SHARP PEAK 3.BRIGHT 3. ABL 4.CONT. 4. GAMMA 5.COLOUR 5. Y. DELAY TIME 6.TINT 6.
- Page 6 BASIC OPERATION OF SERVICE MENU 4.6.1 TOOL OF SERVICE MENU OPERATION Operate the SERVICE MENU with the REMOTE CONTROL UNIT. 4.6.2 SERVICE MENU ITEMS With the SERVICE MENU, various adjustments can be made, and they are broadly classified in the following items of settings. 1.IF Adjustment of the IF circuits.
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Page 7: Setup Tour
(1) By pressing the [6] key, you can change the ON or OFF [should be OFF]. Should be OFF: If it is ON, when you turn off the power and turn on a power again, the JVC’s logo will be shown about 15 seconds automatically, and the SETUP TOUR starts. - Page 8 4.6.8 SERVICE MENU FLOW CHART SERVICE MENU 1. IF VCO (CW) ***.** TOO HIGH SERVICE MENU ABOVE REFERENCE 1.IF 2.V/C JUST REFERENCE 3.DEF 4.VSM PRESET BELOW REFERENCE 1. VCO 5.PRESET TOO LOW 6.SETUP TOUR OFF AFT ADJUST 2. DELAY POINT VCO ADJUST 1-6 : SELECT DISP : EXIT...
- Page 9 INITIAL SETTING VALUE OF SERVICE MENU • Adjustment of the SERVICE MENU is made on the basis of the initial setting values ; however, the new setting values which set the screen in its optimum condition may differ from the initial setting. •...
- Page 10 [5. PRESET] The items in the following table, it is no requirement for adjustment.If values had changed by the miss operation, set the initial setting values in the following table. COLOUR SYSTEM (Do not adjust) Initial setting value (Fixed value) Setting item Variable range SECAM...
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Page 11: Tuner / If Circuit
ADJUSTMENT PROCEDURE 4.8.1 CHECK ITEM Measuring Item Test point Adjustment part Description instrument B1 VOLTAGE Signal TP-B1 : 1-pin (1) Receive a whole black signal. generator TP-E : 5-pin (2) Connect a DC voltmeter to 1-pin and 5-pin of S1 (S1 connector) connector. - Page 12 Measuring Item Test point Adjustment part Description instrument DELAY POINT Signal [1. IF] (1) Receive a black and white signal (colour off). (AGC) generator 2. DELAY POINT (2) Select 1. IF. (AGC TAKE-OVER) (3) Select < 2. DELAY POINT >. Remote (4) Set the setting values of the setting items as shown control unit...
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Page 13: Deflection Circuit
4.8.4 DEFLECTION CIRCUIT • There are 2 modes of adjustment (setting value) 50Hz mode and 60Hz mode, depending upon the kind of signals (vertical frequency 50Hz / 60Hz). • When adjusted in 50Hz mode and 60Hz mode will be automatically set. The setting (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 14 4.8.5 VIDEO CIRCUIT The setting (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. Do not change the initial setting values of the setting items not listed in "ADJUSTMENT PROCEDURE".
- Page 15 (3) Adjust NTSC 3.58 COLOUR to bring the value of (A) in the voltage table. Voltage setting (A) NTSC 4.43 COLOUR MODEL SECAM NTSC3.58 NTSC4.43 (1) When NTSC 3.58 is set, NTSC 4.43 will be AV-1406FE automatically set at the respective values. AV-14F16 AV-14146/N AV-14149/N AV-14FMG6/G AV-14FMG6/S 1-22 (No.YA370)
- Page 16 (6) Adjust NTSC 3.58 TINT to bring the value of (B) in the voltage table in the left. NTSC 4.43 TINT (1) When NTSC 3.58 is set, NTSC 4.43 will be automatically set at the respective values. Voltage setting (B) MODEL NTSC3.58 NTSC4.43 AV-1406FE AV-14F16 AV-14146/N AV-14149/N AV-14FMG6/G AV-14FMG6/S (No.YA370)1-23...
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Page 17: Section 5 Troubleshooting
Measuring Item Test point Adjustment part Description instrument SECAM BLACK Signal [2. V/C] (1) Input a SECAM full field colour bar signal. OFFSET generator 7. SECAM BL ADJUST (2) Select 2. V/C from the SERVICE MENU. (3) Select < 7. SECAM BL ADJUST >. Remote (4) Set the initial setting value of <... -
Page 18: Block Diagram
BLOCK DIAGRAM MAIN PWB(1/2) POWER LED STB_PW IC703 5V REG.& RESET TIMER LED SF102 TU001 Q102 LED(TIM) IF AMP SAW FILTER TUNER REMOCON REMOCON RECEIVER SCL/SDA HEAD PHONE IC651 SPEAKER L AUDIO AMP AUDIO OUT SCL/SDA SCL/SDA SPEAKER R IC701 IC702 MAIN PWB(2/2) MEMORY... - Page 19 1.8k 2.7k R161 MAIN PWB ASS'Y (1/2) R165 Q651 SCG-1323A-H2:AV-14F16 Y161 CF161 R166 SCG-1324A-H2:AV-14FMG6/G CF162 Y975 SCG-1325A-H2:AV-14FMG6/S Q652 Y001 IC301 IC651 SCG-1326A-H2:AV-1406FE 12.5 Y002 SCG-1327A-H2:AV-14146/N Q653 SCG-1328A-H2:AV-14149/N 15.1 15.2 Q702 C119 .47/50 J006 19.9 C120 SCL1 R301 C303 120p C304...
- Page 20 D562 D561 D985 R566 Q982 MAIN PWB ASS'Y (2/2) R981 C981 C561 R565 C562 CN0S2 SCG-1323A-H2:AV-14F16 Q521 SCG-1324A-H2:AV-14FMG6/G C993 SCG-1325A-H2:AV-14FMG6/S Q522 SCG-1326A-H2:AV-1406FE R991 8.2M SCG-1327A-H2:AV-14146/N 115.3 SCG-1328A-H2:AV-14149/N Y503 Q571 115.5 CN0S1 CN0HV 115.1 Q572 FOR TEST Q974 15.3 T522-9 IC421-1...