Author Topic: SHARP (Friendly Series ll) 21V -J70M.Turn off after 5secs... (Read 3033 times)

aldwin · « **on:** June 30, 2011, 02:15:09 PM »

board DUNTK9428WE
vertical TA8403K

Base: 2.6vdc
Collector: 125vdc

mag turn off after 5secs..bumabalik po sa standby at hindi na mag power on uli (kelangan binunot sa mains ang plug tsaka plug in uli para mag on)..then after 5secs balik uli sa standby..

nasubok ko na po hang ang vertical ic..ganun pa din po..

sa vertical ic shorted pala nag pins 1 & 2...

nag hinang na din po ako...

Philippine Electronics Forum · « **on:** June 30, 2011, 02:15:09 PM »

danyenz · « **Reply #1 on:** June 30, 2011, 03:47:30 PM »

ang eeprom nito yung chips na dapa? tingnan ko record parang nakagawa na ako nito..

Philippine Electronics Forum · « **Reply #1 on:** June 30, 2011, 03:47:30 PM »

ultrasonic™ · « **Reply #2 on:** June 30, 2011, 04:04:40 PM »

suyudin ng maigi ang vert. sect

Philippine Electronics Forum · « **Reply #2 on:** June 30, 2011, 04:04:40 PM »

taqui · « **Reply #3 on:** June 30, 2011, 05:25:50 PM »

pa subs.. pin 1&2 ba shorted oh dun sa board mismo?

Philippine Electronics Forum · « **Reply #3 on:** June 30, 2011, 05:25:50 PM »

J@M · « **Reply #4 on:** June 30, 2011, 05:41:51 PM »

Ganito TV ko palit ako Vertical IC & 1 ecap ndi ko lng na try kung shorted pin 1&2
try mo muna hang kaya Vertical IC nyan bka magka guhit..

Philippine Electronics Forum · « **Reply #4 on:** June 30, 2011, 05:41:51 PM »

J@M · « **Reply #5 on:** June 30, 2011, 05:46:47 PM »

Quote from: Mr Jones on June 30, 2011, 05:41:51 PM

Ganito TV ko palit ako Vertical IC & 1 ecap ndi ko lng na try kung shorted pin 1&2
try mo muna hang kaya Vertical IC nyan bka magka guhit..

Hehehe ndi ko lahat nbasa wa epek pla hang ng vertical...ok ba supply
eh kung try kaya palitan ng blank memory!!! bka mabuhay.

pete · « **Reply #6 on:** June 30, 2011, 09:39:56 PM »

hindi yata aandar pag hung ang vert. IC actual palit para sure

Mr. Turko · « **Reply #7 on:** June 30, 2011, 09:57:43 PM »

sa vertical section parin yan

aldwin · « **Reply #8 on:** July 01, 2011, 08:26:32 AM »

Quote from: danyenz on June 30, 2011, 03:47:30 PM

ang eeprom nito yung chips na dapa? tingnan ko record parang nakagawa na ako nito..

ganun nga sis.. 24cxx..

aldwin · « **Reply #9 on:** July 01, 2011, 08:30:01 AM »

Quote from: taquinaga on June 30, 2011, 05:25:50 PM

pa subs.. pin 1&2 ba shorted oh dun sa board mismo?

pins 1&2 mismo sis...hang ko then tester..shorted talaga

aldwin · « **Reply #10 on:** July 01, 2011, 08:33:30 AM »

Quote from: peter on June 30, 2011, 09:39:56 PM

hindi yata aandar pag hung ang vert. IC actual palit para sure

ayaw nga din sis...same pa rin result...

nag try din ako hang ang hot..mag on then mag off naman..di pala mag on ganitong unit kung naka hang ang hot...

taqui · « **Reply #11 on:** July 01, 2011, 08:40:49 AM »

dahil shorted ang pin1&2? bka wala ng supply vertical nyan, check for open resistor and diode sa vert.section

aldwin · « **Reply #12 on:** July 01, 2011, 08:48:52 AM »

Quote from: taquinaga on July 01, 2011, 08:40:49 AM

dahil shorted ang pin1&2? bka wala ng supply vertical nyan, check for open resistor and diode sa vert.section

naka hang po sis taguinaga ang vert at hot ng mag test ako...lahat po ng pins ng vert at hot ini-hang ko..

taqui · « **Reply #13 on:** July 01, 2011, 08:58:54 AM »

hindi mag ooscilate pg naka hang ang hot, ikabit ulit at suyurin ang vert section lalu na ang supply.

POORBOYS_LOUIE · « **Reply #14 on:** July 01, 2011, 01:47:16 PM »

Tama si taguinaga, follow his suggestions.shorted un pin 2 mo sa ground.sundan mo mga components n nkabit
sa pin 2, bka andun ung short.

aldwin · « **Reply #15 on:** July 01, 2011, 05:31:12 PM »

Quote from: taquinaga on July 01, 2011, 08:58:54 AM

hindi mag ooscilate pg naka hang ang hot, ikabit ulit at suyurin ang vert section lalu na ang supply.

ok,thanks mga sis..update ko kayo sa prob na ito bukas..

MX45 · « **Reply #16 on:** July 01, 2011, 05:48:34 PM »

always check supply voltages to vertical IC..

aldwin · « **Reply #17 on:** July 01, 2011, 05:50:45 PM »

Quote from: ccasiser on July 01, 2011, 05:48:34 PM

always check supply voltages to vertical IC..

ok sis...

Mr. Turko · « **Reply #18 on:** July 01, 2011, 06:46:48 PM »

check inbox master aldwin..

enriz622 · « **Reply #19 on:** July 01, 2011, 07:35:37 PM »

Patambay nga po

Philippine Electronics Forum · « **Reply #19 on:** July 01, 2011, 07:35:37 PM »

Author Topic: SHARP (Friendly Series ll) 21V -J70M.Turn off after 5secs... (Read 3033 times)

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