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JVC XVN320B
Manual de Servicio


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  • Contiene diagramas del circuito
  • Descargable
  • Formato PDF
  • Manual completo
  • Idiomas: English
Precio: $4.99

Descripción del JVC XVN320B Manual de Servicio

Manual de servicio completo en formato digital (archivo PDF). Los manuales de servicio por lo general contienen diagramas de circuitos, tarjetas de circuitos impresos, consejos para reparación, diagramas de cableado, diagramas de bloque y lista de refacciones. El Manual de Servicio (a veces llamado Manual de Reparación) es usado principalmente por los técnicos.

Si tan solo quiere saber cómo utilizar su televisión, reproductor de vídeo, reproductor de mp3, etc. Quizá lo que necesita es el Manual del Propietario. Después de colocar la orden le enviaremos las instrucciones de descarga a su dirección de e-mail.

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TEXT_PDF_SNIPPET
5.2

Check points for each error

5.2.1 Spindle start error (1) Defective spindle motor � Are there several ohms resistance between each pin of CN201 "2-3","3-4","2-4"? (The power supply is turned off and measured.) (2) Defective spindle motor driver (IC201) � Has motor drive voltage of a sine wave or a rectangular wave gone out to each terminal(UOUT,VOUT,WOUT) of CN201"2,3,4" and IC201"19,18,17"? � Is FG pulse output from the terminal of IC201"41"(FG) according to the rotation of the motor? (3) Has the control signal come from the microcomputer? � Is it "H" while the terminal of IC201"48"(MUTE1) is operating? � Is the control signal input to the terminal of IC201"25"(SPDRV)? � Is the SVREF voltage input to the terminal of IC201"26"(VREF)? (4) Is the FG signal input to the servo IC? � Is FG pulse input to the terminal of IC301"175"(FGIN) according to the rotation of the motor? 5.2.2 Disc Detection, Distinction error (no disc, no RFENV) � Laser is defective. � Front End Processor is defective (IC101). � APC circuit is defective. --- Q101, Q102. � Pattern is defective. --- Lines for CN101 - All patterns which relate to pick-up and patterns between IC101 � IC101 --- For signal from IC101 to IC301, is signal output from IC101 "40" (FE)? 5.2.3 Traverse movement NG (1) Defective traverse driver � Has the voltage come between terminal of CN201 "7" and "8" ? (2) Defective BTL driver (IC201) � Has the motor drive voltage gone out to IC201"11" or "14"? (3) Has the control signal come from the microcomputer? � TRSDRV Is the signal input? (IC301 "161") (4) TRVSW is the signal input to microcomputer? (IC301 "177") 5.2.4 Focus ON NG � Is FE output ? --- Pattern, IC101 � Is FODRV signal sent ? (R275) --- Pattern, IC301 "160" � Is driving voltage sent ?IC101 "3", "4" --- If NG, pattern, driver, mechanical unit . � Mechanical unit is defective. 5.2.5 Tracking ON NG � When the tracking loop cannot be drawn in, TE shape of waves does not settle. � Mechanical unit is defective. Because the self adjustment cannot be normally adjusted, the thing which cannot be normally drawn in is thought. � Periphery of driver (IC201) Relative component or IC it self is defective. � Microcomputer (IC301) When improperly adjusted due to defective IC.

(No.YD053)1-19

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