Author Topic: lg chassis mc-83c no 12v in sec. (Read 338 times)

kerwinz1 · « **on:** October 16, 2011, 10:35:02 PM »

mga master good eve po may lg chassis mc-83c po akong nererepair pero wlang 12v sa secondary sa reg na ka78r12 na IC palit ko na bago ganun pa rin. patulong naman po mga master

Philippine Electronics Forum · « **on:** October 16, 2011, 10:35:02 PM »

Ikasamoko · « **Reply #1 on:** October 16, 2011, 11:26:41 PM »

IC804 ba yun? meron ba output yung 115V mo? Check FR806

Philippine Electronics Forum · « **Reply #1 on:** October 16, 2011, 11:26:41 PM »

kerwinz1 · « **Reply #2 on:** October 16, 2011, 11:30:34 PM »

opo IC804 yung reg ok naman po ang 115v pinalitan ko bago pero ganun parin

Philippine Electronics Forum · « **Reply #2 on:** October 16, 2011, 11:30:34 PM »

kerwinz1 · « **Reply #3 on:** October 16, 2011, 11:36:03 PM »

ok naman po ang FR806 MAY PUMAPASOK na 12v sa in pero wla sa output paano next move ko?

Philippine Electronics Forum · « **Reply #3 on:** October 16, 2011, 11:36:03 PM »

Ikasamoko · « **Reply #4 on:** October 16, 2011, 11:43:33 PM »

hmmm..baka nag protect? take note na pin4 nyan connected sa Q13 on/off transistor controlled by system..

Philippine Electronics Forum · « **Reply #4 on:** October 16, 2011, 11:43:33 PM »

kerwinz1 · « **Reply #5 on:** October 16, 2011, 11:53:46 PM »

ganun nga master q13 po pumupunta ang pin #4 nya at saka sa optocoupler na 4n35gv IC802.
nag pro protect ba ang q13?

Ikasamoko · « **Reply #6 on:** October 17, 2011, 12:02:34 AM »

on/off yung Q13..Q16 yung protect C3198 connected sa pin8 ng IC01..

kerwinz1 · « **Reply #7 on:** October 17, 2011, 12:08:47 AM »

ano po ba ang papalitan ko ang q13 o ang q16? pero bibili pa ako bukas update na lang ka master...
thank you sa advice mo master may points ka sa akin...

??? · « **Reply #8 on:** October 17, 2011, 12:09:56 AM »

Vertical IC kaya walang cold solder?

??? · « **Reply #9 on:** October 17, 2011, 12:10:56 AM »

Ano po first symptoms? No power, no standbye LED indicator?

Ikasamoko · « **Reply #10 on:** October 17, 2011, 12:16:32 AM »

waaaaa...wag ka basta palit..diagnose mo muna maigi..

??? · « **Reply #11 on:** October 17, 2011, 12:33:07 AM »

^;D

Bigla nawala antok ko.

Philippine Electronics Forum · « **Reply #11 on:** October 17, 2011, 12:33:07 AM »

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