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Author Topic: AIWA T.V AS2180NH AUTO SHUT OFF  (Read 3158 times)

Offline edz

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AIWA T.V AS2180NH AUTO SHUT OFF
« on: May 29, 2010, 01:34:37 PM »
Mga master magandang hapon sa inyong  lahat tulong naman may ginawa akong aiwa pag on ko sa t.v nagkaroon xa ng pictures ok naman xa normal xa tingnan after 2-5 minutes biglang mag shut off back to stanby xa.tapos on ko ulit nag ka pictures naman piro lagi ng mag shut off.                       

action taken:ne resolder kona ang jungle pate ang vertical
ok ang b+120

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AIWA T.V AS2180NH AUTO SHUT OFF
« on: May 29, 2010, 01:34:37 PM »

Offline gie62

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Re: AIWA T.V AS2180NH AUTO SHUT OFF
« Reply #1 on: May 29, 2010, 01:47:08 PM »
check mo lahat ng protection circuit, maaring isa dyan ay nagaactivate kaya back to standby ang set..

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Re: AIWA T.V AS2180NH AUTO SHUT OFF
« Reply #1 on: May 29, 2010, 01:47:08 PM »

Offline nath630

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Re: AIWA T.V AS2180NH AUTO SHUT OFF
« Reply #2 on: May 29, 2010, 02:13:58 PM »
check mo muna baka naka SLEEP


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Re: AIWA T.V AS2180NH AUTO SHUT OFF
« Reply #2 on: May 29, 2010, 02:13:58 PM »

Offline sEPh

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Re: AIWA T.V AS2180NH AUTO SHUT OFF
« Reply #3 on: May 29, 2010, 06:42:23 PM »
sir, hiwalay ba yung board ng audio nito?

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Re: AIWA T.V AS2180NH AUTO SHUT OFF
« Reply #3 on: May 29, 2010, 06:42:23 PM »

Offline edz

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Re: AIWA T.V AS2180NH AUTO SHUT OFF
« Reply #4 on: May 29, 2010, 07:40:57 PM »
opo ser  seph hiwalay po ang board nito ser ano kaya ang dapat kong gawin?

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Re: AIWA T.V AS2180NH AUTO SHUT OFF
« Reply #4 on: May 29, 2010, 07:40:57 PM »

Offline pEN DoTA

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Re: AIWA T.V AS2180NH AUTO SHUT OFF
« Reply #5 on: May 29, 2010, 07:59:25 PM »
cold solder at horizontal ckt. especially horizontal driver at hor. driver transformer..
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Offline sEPh

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Re: AIWA T.V AS2180NH AUTO SHUT OFF
« Reply #6 on: May 30, 2010, 10:39:43 AM »
sundan mo yung line ng B+ from chopper, may high resistance na resistor dyan,maliit lang. pkicheck mo...
ganun din sa 180v from flyback, sundan mo. hanapin mo yung 1 meg or 1.5 meg resistor...

Offline m@r

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Re: AIWA T.V AS2180NH AUTO SHUT OFF
« Reply #7 on: May 30, 2010, 04:24:44 PM »
sir try niyo din po sa horizontal section yong mga diodes may nagawa din kasi akong ganyang case tv will operate normally but after few minutes nagshut off... cause diode sa horizontal section, leak na siya that is why when under load it will cause the tv to shut off... sundin mo rin si sir seph maari ding resistor yan na nagchange value.... sana makatulong, update niyo nalang kami....
it's not how much what we have but it's how we used what we have...

Offline enriz622

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Re: AIWA T.V AS2180NH AUTO SHUT OFF
« Reply #8 on: June 01, 2010, 02:43:42 PM »
sa ts na check nyo na ba ang vertical kung ok.check nyo po ang secondary voltage ng fbt kung ok lahat. minsan ang gawa ko dyan ay hung ko muna ang d314 or d317 sa 14 inch na kapareho nyan, para sa protect

Offline pete

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Re: AIWA T.V AS2180NH AUTO SHUT OFF
« Reply #9 on: June 01, 2010, 02:56:36 PM »
check and replace  nyo po ang small ecap sa power supply at sa secondary ng chopper.

Offline MX45

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Re: AIWA T.V AS2180NH AUTO SHUT OFF
« Reply #10 on: June 01, 2010, 04:04:23 PM »
subscribing...
Gawin mo ang nais mo, sundin mo ang gusto mo dahil ikaw o ang sarili mo ang hari ng yung kagustuhan...

Offline ultrasonic™

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Re: AIWA T.V AS2180NH AUTO SHUT OFF
« Reply #11 on: June 02, 2010, 10:49:25 PM »
kng meron yang B+ adj.  try  mung babaan  & den observe ?

sundin mu ang post  nng mga masterz  dahil yan ang mga  isa sa mga common cause  kng bakit may shutdown
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Offline edz

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Re: AIWA T.V AS2180NH AUTO SHUT OFF
« Reply #12 on: June 03, 2010, 08:49:38 AM »
tnks mga master sa inyong pag rply, hindi ko pa nagawa nasa service kc yon pag magawa kona post ko kong anong problima.

Offline pEN DoTA

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Re: AIWA T.V AS2180NH AUTO SHUT OFF
« Reply #13 on: June 07, 2010, 06:58:24 AM »
kumusta na to?update?????
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Offline edz

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Re: AIWA T.V AS2180NH AUTO SHUT OFF
« Reply #14 on: June 08, 2010, 09:03:49 PM »
gud pm mga master pacenxa na kau ngayon lang ako naka reply nasa service kc yong ginawa kong t.v malayo pa.mga master yong tinuro nyo sa aken sinunod ko lalo na sayo ser seph, may  nakuha akong sera doon resistor 560k malapit sa secondary supply open xa piro ng kinabitan ko ng bago ganon parin nag auto shut off parin  back to stnd by.tulong naman mga master baka mayron kayong alam nalito na kc ako.tnks

Offline ultrasonic™

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Re: AIWA T.V AS2180NH AUTO SHUT OFF
« Reply #15 on: June 09, 2010, 05:23:37 PM »
gud pm mga master pacenxa na kau ngayon lang ako naka reply nasa service kc yong ginawa kong t.v malayo pa.mga master yong tinuro nyo sa aken sinunod ko lalo na sayo ser seph, may  nakuha akong sera doon resistor 560k malapit sa secondary supply open xa piro ng kinabitan ko ng bago ganon parin nag auto shut off parin  back to stnd by.tulong naman mga master baka mayron kayong alam nalito na kc ako.tnks

ayon may clue na,  mas madali  nlng  yan...

@TS  focus  kau  jan..  sundan mu ang current/copper path..  baka may  over load kau...  first priority suspect nyu ang pinakamalapit na semiconductor dvice jan...


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Offline miel

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Re: AIWA T.V AS2180NH AUTO SHUT OFF
« Reply #16 on: June 09, 2010, 08:09:09 PM »
gud pm mga master pacenxa na kau ngayon lang ako naka reply nasa service kc yong ginawa kong t.v malayo pa.mga master yong tinuro nyo sa aken sinunod ko lalo na sayo ser seph, may  nakuha akong sera doon resistor 560k malapit sa secondary supply open xa piro ng kinabitan ko ng bago ganon parin nag auto shut off parin  back to stnd by.tulong naman mga master baka mayron kayong alam nalito na kc ako.tnks
 sir kung may diagram ka sundan mo ung afc papunta un sa flyback or sa flyback hanapin mo ung 1meg na resistor naka series un sa 100k na resistor palitan muna ung dalawa especialy ung 1meg naging 1.1meg un kaya ka nag shut off maliit lang na resistor nasa 1/8 watts lang yata un nakalimutan ko narin kc matagal ng sira ng aiwa yan

Offline enriz622

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Re: AIWA T.V AS2180NH AUTO SHUT OFF
« Reply #17 on: June 09, 2010, 09:57:35 PM »
check mo kaya ang r309 1% tolerance lang

Offline sEPh

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Re: AIWA T.V AS2180NH AUTO SHUT OFF
« Reply #18 on: June 10, 2010, 07:56:29 PM »
sir, sundan nyo yung path ng 560k. gaya na sabi ni sir ultrasonic, malamang may shorted dyan kaya open yung resistor...

Offline pete

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Re: AIWA T.V AS2180NH AUTO SHUT OFF
« Reply #19 on: June 11, 2010, 07:58:29 AM »
ayon may clue na,  mas madali  nlng  yan...

@TS  focus  kau  jan..  sundan mu ang current/copper path..  baka may  over load kau...  first priority suspect nyu ang pinakamalapit na semiconductor dvice jan...



agree ako dyan sa magandang dalaga na yan hehehe

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Re: AIWA T.V AS2180NH AUTO SHUT OFF
« Reply #19 on: June 11, 2010, 07:58:29 AM »

 

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