Download
Share
Print this page
JVC AV-14F1P(PH) Service Manual
  1. Manuals
  2. Brands
  3. JVC Manuals
  4. TV
  5. AV-14F1P(PH)
  6. Service manual
JVC AV-14F1P(PH) Service Manual

JVC AV-14F1P(PH) Service Manual

Hide thumbs

Advertisement

Quick Links

Download this manual
SERVICE MANUAL
CONTENTS
SPECIFICATIONS ........................................................................................................................... 2
SAFETY PRECAUTIONS ................................................................................................................ 3
FEATURES ...................................................................................................................................... 4
OPERATING INSTRUCTIONS (APPENDED) .............................................................................. 1-1
SPECIFIC SERVICE INSTRUCTIONS ............................................................................................ 4
SERVICE ADJUSTMENTS ............................................................................................................ 10
STANDARD CIRCUIT DIAGRAM (APPENDED) ......................................................................... 2-1
PARTS LIST ................................................................................................................................... 27
COPYRIGHT © 2000 VICTOR COMPANY OF JAPAN, LTD.
COLOR TELEVISION
AV-14F1P
−
+
No. 56084
(PH)
AV-14F1P
AV-14F1P
BASIC CHASSIS
GA2
No. 56084
1
Sep. 2000

Advertisement

loading

Related Manuals for JVC AV-14F1P(PH)

Summary of Contents for JVC AV-14F1P(PH)

  • Page 1: Table Of Contents

    AV-14F1P AV-14F1P SERVICE MANUAL COLOR TELEVISION BASIC CHASSIS AV-14F1P (PH) − CONTENTS SPECIFICATIONS ........................... 2 SAFETY PRECAUTIONS ........................ 3 FEATURES ............................4 OPERATING INSTRUCTIONS (APPENDED) ................1-1 SPECIFIC SERVICE INSTRUCTIONS .................... 4 SERVICE ADJUSTMENTS ......................10 STANDARD CIRCUIT DIAGRAM (APPENDED) ................. 2-1 PARTS LIST ...........................

  • Page 2: Specifications

    AV-14F1P SPECIFICATIONS Item Content Dimensions (W × H × D) 462mm × 340.5mm × 375mm Mass 10kg TV RF System CCIR (M) & (N) Color System NTSC / PAL-M / PAL-N TV Receiving Channel and Frequency VHF (VL) Band (02 ~ 06) 54MHz ~ 88MHz VHF (VH) Band (07 ~ 13) 174MHz ~ 216MHz UHF Band...

  • Page 3: Safety Precautions

    AV-14F1P SAFETY PRECAUTIONS 1. The design of this product contains special hardware, many 8. When service is required, observe the original lead dress. Ex- circuits and components specially for safety purposes. For con- tra precaution should be given to assure correct lead dress in tinued protection, no changes should be made to the original the high voltage circuit area.

  • Page 4: Features

    AV-14F1P FEATURES New chassis design enables use of an interactive on-screen control. Wide range voltage for AC power input. With AUDIO / VIDEO INPUT & OUTPUT terminals. MUTING button can reduce the audio level to zero instantly. Functional remote control to operate TV set (for channel select, volume control, power ON/OFF, etc.) from a distance. C bus is used to control V/C &...
  • Page 5 AV-14F1P FRONT CABINET SPEAKER (×2) CRT SOCKET PWB (Within MAIN PWB) MAIN PWB SPEAKER (×2) REAR COVER (×2) (×5) No. 56084...
  • Page 6 AV-14F1P REPLACEMENT OF MEMORY IC MEMORY IC (5) Receive channel setting Refer to the OPERATING INSTRUCTIONS and set the This TV uses the following memory IC. receive channels (channels preset). Memory IC: IC1704 on MAIN PW Board The memory IC memorizes data for correctly operating the (6) User settings video and deflection circuits.
  • Page 7 AV-14F1P SETTING OF SYSTEM CONSTANT SET Table 1 Setting item Setting contents Setting value VIDEO AUDIO MONO PH. MONO MONO VARI. OUT GAME CINEMA RETURN+ SURROUND USER SETTING VALUES Setting of Function Table 2-1 Setting item Setting value Setting item Setting value MAIN POWER DISPLAY...
  • Page 8 AV-14F1P SERVICE MENU SETTING ITEMS Table 3 Service menu Setting item Service menu Setting item PICTURE 1. PICTURE 54. H POS. 60 2. BRIGHT 55. H BLK. 60 Do not adjust. 3. COL. PALM 56. V POS. 60 4. COL. PALN 57.
  • Page 9 AV-14F1P REPLACEMENT OF CHIP COMPONENT 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. SOLDERING IRON 1.

  • Page 10: Service Adjustments

    AV-14F1P SERVICE ADJUSTMENTS BEFORE STARTING SERVICE ADJUSTMENT 7. Preparation for adjustment (presetting): 1. There are 2 ways for adjusting this TV: One is with the Unless otherwise specified in the adjustment items, preset the REMOTE CONTROL UNIT and the other is the conventional following functions with the remote control unit.
  • Page 11 AV-14F1P 3. BASIC OPERATION IN SERVICE MENU SERVICE MENU NOTE: In each menu screen, key operation guide will appear at the bottom, which will help your menu operation. SERVICE MENU (1) How to enter SERVICE MENU PICTURE VIDEO STATUS OTHERS Press the DISPLAY key and the VIDEO STATUS key on the LOW LIGHT HIGH LIGHT...
  • Page 12 AV-14F1P SERVICE MENU AND SUB MENU SCREENS SERVICE MENU (MAIN MENU) SCREEN A SUB MENU: PICTURE SERVICE MENU PICTURE VIDEO STATUS OTHERS LOW LIGHT HIGH LIGHT RF AFC CHK 1. PICTURE VCO (CW) I2C BUS CTRL SELECT EXIT BY SELECT EXIT BY SELECT EXIT BY...
  • Page 13 AV-14F1P ADJUSTMENT LOCATIONS MAIN PWB FRONT TIMER MENU POWER REMOCON IC701 RECEIVER F901 IC704 MEMORY S901 POWER SW IC201 T111 TU001 UPPER : FOCUS 1 Pin TP-91(B1) LOWER : SCREEN 2 Pin NC 3 Pin TP-E (") CRT SOCKET PWB (SOLDER SIDE) TP-E CRT EARTH...
  • Page 14 AV-14F1P INITIAL SETTING VALUE OF SERVICE MENU 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 (adjustment) items not listed in "ADJUSTMENTS".
  • Page 15 AV-14F1P VIDEO STATUS Initial setting value Setting item Variable range CINEMA GAME ±20 ±0 ±0 TINT ±20 −3 −3 COLOR ±20 −10 −10 PICTURE ±20 ±0 ±0 BRIGHT ±15 ±0 −5 DETAIL −99 ~ +50 −22 ±0 G DRIVE −99 ~ +50 −54 ±0 B DRIVE...
  • Page 16 AV-14F1P ADJUSTMENTS B1 POWER SUPPLY CHECK Measuring Description Item Test point Adjustment part instrument Check of Signal B1 (TP-91) 1. Receive a black and white signal (color off). (NTSC) B1 POWER Generator TP-E (" " " " " ) 2. Connect a DC voltmeter between B1 (TP-91) and TP-E (") SUPPLY (between pins 1 and 3 of the connector B1).
  • Page 17 AV-14F1P DEFLECTION CIRCUIT ADJUSTMENT The setting (adjustment) using the remote control unit is made on the basis of the initial setting values shown on page 14. 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 (adjustment) items not listed herein.
  • Page 18 AV-14F1P VIDEO/CHROMA CIRCUIT ADJUSTMENT The setting (adjustment) using the remote control unit is made on the basis of the initial setting values shown on pages 14 and 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 (adjustment) items not listed herein.
  • Page 19 AV-14F1P Measuring Description Item Test point Adjustment part instrument 1. Receive any broadcast. Adjustment Remote 2. BRIGHT 2. Select the sub menu screen PICTURE from the SERVICE control unit MENU. 3. Select 2. BRIGHT with the MENU 1/4 key, and confirm its BRIGHT initial setting value.
  • Page 20 AV-14F1P Measuring Description Item Test point Adjustment part instrument [Method of adjustment using measuring instrument] Adjustment Signal TP-47B of SUB generator TP-E (" " " " " ) COLOR-II [CRT (PAL-M COLOR) Oscillo- SOCKET 3. COL. PALM 1. Receive a PAL-M full field color bar signal (75% white). scope PWB] 2.
  • Page 21 AV-14F1P Measuring Description Item Test point Adjustment part instrument Adjustment Signal TP-47B 6. TINT [Method of adjustment using measuring instrument] generator TP-E (" " " " " ) SUB TINT-II [CRT Oscillo- SOCKET 1. Receive a NTSC 3.58 color bar signal (full field color bar 75% white).
  • Page 22 AV-14F1P X-RAY PROTECTION CHECK Measuring Description Item Test point Adjustment part instrument Check of Pins 1 and 3 Prepare the following resistor. Ω ± X-RAY 15.0k 1% 1/4W PROTEC- [X Connector 1. Turn on the power and receive any signal. TION on MAIN 2.
  • Page 23 AV-14F1P PURITY, CONVERGENCE ADJUSTMENT PURITY ADJUSTMENT 1. Demagnetize CRT with the demagnetizer. WEDGE DEFLECTION YOKE 2. Loosen the retainer screw of the deflection yoke. 3. Remove the wedges. (Fig. 1.) 4. Input a green raster signal from the signal generator, and turn the screen to green raster.
  • Page 24 AV-14F1P STATIC CONVERGENCE ADJUSTMENT 1. Input a cross-hatch signal. 2. Using 4-pole convergence magnets, overlap the red and blue lines in the center of the screen (Fig. 1) to turn them to magenta (red/blue). (FRONT VIEW) 3. Using 6-pole convergence magnets, overlap the magenta (red/ blue) and green lines in the center of the screen to turn them to white.
  • Page 25 AV-14F1P SELF-CHECK FUNCTIONS 1. Outline This model has self-check functions given below. When an abnormality has been detected, the SUB POWER is turned off and the ON TIMER LED flashes to inform of the failure. An abnormality is detected by the signal input state of the control line connected to the microcomputer.
  • Page 26 AV-14F1P No. 56084...

  • Page 27: Parts List

    AV-14F1P VICTOR COMPANY OF JAPAN, LIMITED TELEVISION RECEIVER DIVISION 1106 Heta, Iwai-city, Ibaraki-prefecture, 306-0698, Japan AV14F1PPH-SK #3 CTH 0009 No. 56084...