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Author Topic: JVC AV-K21PX no video in tv mode but has video in dvd & vhs player  (Read 725 times)

Offline pEN DoTA

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JVC AV-K21PX no video in tv mode but has video in dvd & vhs player
« on: September 19, 2010, 01:21:46 PM »
in TV mode:
     ;)may raster at sound.
     
       :D B+ is 131.9 lang, may error amp na SE135. dun nakuha ko 131.9 lang, so i replaced filter cap same then ung result. hindi ko pa napalitan ung error amp kasi wlang stock at closed na ung electronic store dito sa amin pag sunday.

      :D complete all voltages at tuner may 30V, 5V, 8V.
     :D nag resloder na ako sa tuner section, jungle area, vertical at horizontal, pati c board pero same problem pa rin.


please help :) :)
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JVC AV-K21PX no video in tv mode but has video in dvd & vhs player
« on: September 19, 2010, 01:21:46 PM »

Offline pEN DoTA

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Re: JVC AV-K21PX no video in tv mode but has video in dvd & vhs player
« Reply #1 on: September 19, 2010, 08:16:55 PM »
up   up..... need schematic diagram. tia
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Re: JVC AV-K21PX no video in tv mode but has video in dvd & vhs player
« Reply #1 on: September 19, 2010, 08:16:55 PM »

Offline bobbie

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Re: JVC AV-K21PX no video in tv mode but has video in dvd & vhs player
« Reply #2 on: September 20, 2010, 09:44:22 AM »
ano e-mail add mo sis???

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Re: JVC AV-K21PX no video in tv mode but has video in dvd & vhs player
« Reply #2 on: September 20, 2010, 09:44:22 AM »

Offline ultrasonic™

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Re: JVC AV-K21PX no video in tv mode but has video in dvd & vhs player
« Reply #3 on: September 20, 2010, 10:43:32 AM »
sis  pedot..

na try  nyu  na bang mag planting ng mga e.caps  around ur  jungle..

wala ba kayong open  path from tuner module to jungle...

SVC manual nyan try  ko ma send sau..
im always walking on the rain so that no one could see me crying




TV SERVICE MODE - http://www.elab.ph/forum/index.php?topic=2267.0;topicseen

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Re: JVC AV-K21PX no video in tv mode but has video in dvd & vhs player
« Reply #3 on: September 20, 2010, 10:43:32 AM »

Offline pEN DoTA

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Re: JVC AV-K21PX no video in tv mode but has video in dvd & vhs player
« Reply #4 on: September 20, 2010, 12:12:55 PM »
sis  pedot..

na try  nyu  na bang mag planting ng mga e.caps  around ur  jungle..

wala ba kayong open  path from tuner module to jungle...

SVC manual nyan try  ko ma send sau..



nag caps planting na ako master sa jungle area, vertical at B+ filter.
B+ nya na nasukat ko is only 130V, medyo kinulang based on SE 135 na error amp. sa dvd na try ko ok cya pero ang picture hindi nka fine parang may shadow, yung bang "hilaw" kun baga.
ok namang ung mga resistor sa p.s section :D
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Re: JVC AV-K21PX no video in tv mode but has video in dvd & vhs player
« Reply #4 on: September 20, 2010, 12:12:55 PM »

Offline pEN DoTA

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Re: JVC AV-K21PX no video in tv mode but has video in dvd & vhs player
« Reply #5 on: September 20, 2010, 12:13:51 PM »
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Offline pEN DoTA

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Re: JVC AV-K21PX no video in tv mode but has video in dvd & vhs player
« Reply #6 on: September 20, 2010, 12:17:24 PM »
sis  pedot..

na try  nyu  na bang mag planting ng mga e.caps  around ur  jungle..

wala ba kayong open  path from tuner module to jungle...

SVC manual nyan try  ko ma send sau..



complete ung mga voltages sa tuner master. may 30V, 8V  at 5V. sa vertical may 24V.
ok ba yuing 130V master sa B+? ??? SE135 kasi ung error amp nya at wala akong nakitang trimmer sa paligid ;)
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Offline Triple_D

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Re: JVC AV-K21PX no video in tv mode but has video in dvd & vhs player
« Reply #7 on: September 20, 2010, 12:35:00 PM »
master pendot ok ba ang switching ic nito?
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Offline pEN DoTA

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Re: JVC AV-K21PX no video in tv mode but has video in dvd & vhs player
« Reply #8 on: September 20, 2010, 12:38:15 PM »
master pendot ok ba ang switching ic nito?


oo nga noh?  cg try ko mamaya. ginamit pa kasi ng pari. ginamit nya for tutorial sa church ung tv usibg vhs player.
thnks sis.... wait nlang ako sa schema para hindi medyo mahirapan.
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Offline ultrasonic™

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Re: JVC AV-K21PX no video in tv mode but has video in dvd & vhs player
« Reply #9 on: September 20, 2010, 06:44:13 PM »
130V  B+  pwede  pa  yan... 
belong pa yan sa Vrms/effective voltage nya 


fine picture with shadow image..
hhmmm...  normal  ba ang ABL sect  nyu ? nasuyod  nyu  na ?
RF AGC nyu ?
im always walking on the rain so that no one could see me crying




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Offline pEN DoTA

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Re: JVC AV-K21PX no video in tv mode but has video in dvd & vhs player
« Reply #10 on: September 20, 2010, 09:56:58 PM »
130V  B+  pwede  pa  yan... 
belong pa yan sa Vrms/effective voltage nya 


ganun po ba master, so walang problema sa P.S section.



fine picture with shadow image..
hhmmm...  normal  ba ang ABL sect  nyu ? nasuyod  nyu  na ?
RF AGC nyu ?


sori master, hindi pala fine. sa dvd ung image nya ehh medyo may kalat pero minimal lng naman.

thanks a lot master for another clue, maybe 2morow or the other day, kinuha pa kasi ni padre ung tv nya for tutorial.

promised update ko yan dito pag ano na ang resulta :)

at sana may makapagbigay dito ng schematic diagram ;) :-\
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Re: JVC AV-K21PX no video in tv mode but has video in dvd & vhs player
« Reply #10 on: September 20, 2010, 09:56:58 PM »

 

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