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Author Topic: JVC TV AV-20NN11 no picture w/ sound in tv good in audio video input  (Read 478 times)

Offline Bernpal

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JVC TV AV-20NN11 no picture w/ sound in tv good in audio video input
« on: June 11, 2012, 07:25:32 AM »
same trouble sa topic furom na ito...

   
pls. help JVC TV AV-20NN11 no picture w/ sound in tv good in audio video input

try ko rin check yung R134 pero good naman? help pls...

walang makuhang tv station at good sa A/V mode

Done: replaced tuner, resoldered...
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JVC TV AV-20NN11 no picture w/ sound in tv good in audio video input
« on: June 11, 2012, 07:25:32 AM »

Offline Min

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Re: JVC TV AV-20NN11 no picture w/ sound in tv good in audio video input
« Reply #1 on: June 11, 2012, 08:15:46 AM »
Kapag ganyan no picture w/ sound in TV and is also good sound/video on AV input palagi tandaan napakaliit na ng chance na sira ang tuner. Kasi pag narinig mo clear sound galing sa TV program, ibig sabihin working ang tuner. ;D

Ussually nasa part AV switch IC diperensya pag ganito or dun sa Jungle IC at mga katabing pyesa nya.
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Re: JVC TV AV-20NN11 no picture w/ sound in tv good in audio video input
« Reply #1 on: June 11, 2012, 08:15:46 AM »

Offline mcleod

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Re: JVC TV AV-20NN11 no picture w/ sound in tv good in audio video input
« Reply #2 on: June 11, 2012, 09:10:52 AM »
pag ganito problema,

1. consider mo voltages sa tuner, check ecaps, resistors, coil / inductor and especially diodes.
2. vif pag wala coil again and jungle ic.
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Re: JVC TV AV-20NN11 no picture w/ sound in tv good in audio video input
« Reply #2 on: June 11, 2012, 09:10:52 AM »

Offline NORTH LUZON

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Re: JVC TV AV-20NN11 no picture w/ sound in tv good in audio video input
« Reply #3 on: June 11, 2012, 09:46:32 AM »
check mo ung ic na katabi ng tuner
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Re: JVC TV AV-20NN11 no picture w/ sound in tv good in audio video input
« Reply #3 on: June 11, 2012, 09:46:32 AM »

Offline Bernpal

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Re: JVC TV AV-20NN11 no picture w/ sound in tv good in audio video input
« Reply #4 on: June 11, 2012, 07:19:15 PM »
Quote from: HG on June 11, 2012, 08:15:46 AM
Kapag ganyan no picture w/ sound in TV and is also good sound/video on AV input palagi tandaan napakaliit na ng chance na sira ang tuner. Kasi pag narinig mo clear sound galing sa TV program, ibig sabihin working ang tuner. ;D

Ussually nasa part AV switch IC diperensya pag ganito or dun sa Jungle IC at mga katabing pyesa nya.

(walang makuhang tv station at good sa A/V mode) ang sabi ko, anyway, salamat sa suggestion.

@sis mcleod at sis LAKAS-CHAMBA amianan thanks for ideas, try ko ito...
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Re: JVC TV AV-20NN11 no picture w/ sound in tv good in audio video input
« Reply #4 on: June 11, 2012, 07:19:15 PM »

Offline lenovo

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Re: JVC TV AV-20NN11 no picture w/ sound in tv good in audio video input
« Reply #5 on: June 11, 2012, 09:56:04 PM »
sir bernal tama po b model nya 20nn11 o 20n11 lng
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Offline acer

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Re: JVC TV AV-20NN11 no picture w/ sound in tv good in audio video input
« Reply #6 on: June 11, 2012, 10:32:05 PM »
Quote from: Bernpal on June 11, 2012, 07:25:32 AM
same trouble sa topic furom na ito...

   
pls. help JVC TV AV-20NN11 no picture w/ sound in tv good in audio video input

try ko rin check yung R134 pero good naman? help pls...

walang makuhang tv station at good sa A/V mode

Done: replaced tuner, resoldered...

ako rin nalito dito
pls. help JVC TV AV-20NN11 no picture w/ sound in tv good in audio video input
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Offline Bernpal

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Re: JVC TV AV-20NN11 no picture w/ sound in tv good in audio video input
« Reply #7 on: June 13, 2012, 09:56:20 PM »
Quote from: lenovo on June 11, 2012, 09:56:04 PM
sir bernal tama po b model nya 20nn11 o 20n11 lng

AV-20NN11 po..

Quote from: acer on June 11, 2012, 10:32:05 PM
ako rin nalito dito
pls. help JVC TV AV-20NN11 no picture w/ sound in tv good in audio video input


sorry sis at nalito kayo, kung may eeprom dump kayo nito ay try ko lang palitan, thanks...
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Offline pete

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Re: JVC TV AV-20NN11 no picture w/ sound in tv good in audio video input
« Reply #8 on: June 14, 2012, 07:18:45 AM »
voltage check sa tuner pa post mo
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Offline MX45

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Re: JVC TV AV-20NN11 no picture w/ sound in tv good in audio video input
« Reply #9 on: June 14, 2012, 08:32:38 AM »
susb..
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Offline ericarm

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Re: JVC TV AV-20NN11 no picture w/ sound in tv good in audio video input
« Reply #10 on: June 23, 2012, 08:31:59 PM »
patambay...musta na kaya ito?
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Offline Bernpal

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Re: JVC TV AV-20NN11 no picture w/ sound in tv good in audio video input
« Reply #11 on: June 25, 2012, 10:35:16 PM »
Quote from: pete on June 14, 2012, 07:18:45 AM
voltage check sa tuner pa post mo

sorry kung ngayon lang ako nakapag-upate...

kompleto naman ang boltahe sa tuner...
31v, 5v, 8.9v accordingly...

Quote from: LAKAS-CHAMBA amianan on June 11, 2012, 09:46:32 AM
check mo ung ic na katabi ng tuner

palit na rin ako ng IF ic pero as is pa rin, one thing na ginawa ko ay nagpalit ako ng eeprom at nagkaroon ng normal operation, pinanood pa nga namin yung NBA championship at napatapos, kaya kinuha na nung tumer, after an hour ay bumalik at plain raster with osd na naman :'(
ang obserbasyon ko ay, kung bagong bukas lang ang unit up to 5-10 minutes ay saka sya magtotrobol... hilo na ako ah...
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Offline NORTH LUZON

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Re: JVC TV AV-20NN11 no picture w/ sound in tv good in audio video input
« Reply #12 on: June 26, 2012, 10:03:38 AM »
Quote from: Bernpal on June 25, 2012, 10:35:16 PM
sorry kung ngayon lang ako nakapag-upate...

kompleto naman ang boltahe sa tuner...
31v, 5v, 8.9v accordingly...

palit na rin ako ng IF ic pero as is pa rin, one thing na ginawa ko ay nagpalit ako ng eeprom at nagkaroon ng normal operation, pinanood pa nga namin yung NBA championship at napatapos, kaya kinuha na nung tumer, after an hour ay bumalik at plain raster with osd na naman :'(
ang obserbasyon ko ay, kung bagong bukas lang ang unit up to 5-10 minutes ay saka sya magtotrobol... hilo na ako ah...

pakipress ang display button
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Offline Bernpal

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Re: JVC TV AV-20NN11 no picture w/ sound in tv good in audio video input
« Reply #13 on: June 28, 2012, 04:50:57 PM »
Quote from: LAKAS-CHAMBA amianan on June 26, 2012, 10:03:38 AM
pakipress ang display button


thanks sis, solve na ito... (replaced ic701), ewan ko kung yun na nga, 10am - 4pm ang pag observed at wala naman aberya cguro'y stable na yun... kaya kinuha na nung customer martes ng hapon at di pa bumalik.  thank you sa mga suggetions, pogi points sa inyo...
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Offline NORTH LUZON

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Re: JVC TV AV-20NN11 no picture w/ sound in tv good in audio video input
« Reply #14 on: June 28, 2012, 05:19:33 PM »
Quote from: Bernpal on June 28, 2012, 04:50:57 PM
thanks sis, solve na ito... (replaced ic701), ewan ko kung yun na nga, 10am - 4pm ang pag observed at wala naman aberya cguro'y stable na yun... kaya kinuha na nung customer martes ng hapon at di pa bumalik.  thank you sa mga suggetions, pogi points sa inyo...

anu number ng ic 701?
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Offline MX45

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Re: JVC TV AV-20NN11 no picture w/ sound in tv good in audio video input
« Reply #15 on: June 28, 2012, 05:48:44 PM »
congrats na pala to..
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Offline Bernpal

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Re: JVC TV AV-20NN11 no picture w/ sound in tv good in audio video input
« Reply #16 on: June 28, 2012, 05:51:54 PM »
Quote from: LAKAS-CHAMBA amianan on June 28, 2012, 05:19:33 PM
anu number ng ic 701?


di ko memorize, system ic yun at jungle niya ay TB1230AN

chassis ga2
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Re: JVC TV AV-20NN11 no picture w/ sound in tv good in audio video input
« Reply #16 on: June 28, 2012, 05:51:54 PM »
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