[TechAssist] Re: GE TV CTC177AA3 - 25GT503 - Dead - No SMPS startup
- From: "David Lessard" <mr_fixit@xxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Sat, 6 Mar 2004 18:18:12 -0500
Charles, If this voltage is missing from the start chip shouldn't the
SMPS still fire up when the TV is first plugged in. Just wondering. I'll
look at this anyway, thanks.
Alexandria Electronics
50 Harrison Street
Alexandria, Ontario
K0C-1A0
mr_fixit@xxxxxxxxxxxx
-----Original Message-----
From: techassist-bounce@xxxxxxxxxxxxx
[mailto:techassist-bounce@xxxxxxxxxxxxx] On Behalf Of repair1
Sent: Saturday, March 06, 2004 5:52 PM
To: techassist@xxxxxxxxxxxxx
Subject: [TechAssist] Re: GE TV CTC177AA3 - 25GT503 - Dead - No SMPS
startup
Check R4101(1.5M), I believe.This supplies raw B+ to start chip, hth.
Charles Betzler
Best Electronics
repair1@xxxxxxxxxxxxx
----- Original Message -----
From: "David Lessard" <mr_fixit@xxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Saturday, March 06, 2004 4:45 PM
Subject: [TechAssist] GE TV CTC177AA3 - 25GT503 - Dead - No SMPS startup
> When plugged in I don't hear the usual startup sound of the SMPS. SMPS
> appears to be dead. I've checked the following, R4001, CR4106, CR4704,
> R4702 and R4517. I believe the problem is the STK73-010 SMPS
> driver/regulator. Is there anyway of confirming this is the problem or
> do you guys just normally swap these without giving it a second guess.
> Does the standby power work off the SMPS because I can't measure
+5volts
> anywhere?
>
> Thanks in advance,
>
> David Lessard
> Alexandria Electronics
> 50 Harrison Street
> Alexandria, Ontario
> K0C-1A0
>
> mr_fixit@xxxxxxxxxxxx
>
>
>
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