[TechAssist] Re: Philips CP90 chassis problem
- From: "CONCEPT" <concept@xxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Mon, 20 May 2002 19:50:48 +0300
Hi Babalino
Try this:
1 - C2703 330µ 25v leaky
2 - Check D6610 if ok suspect LOPT
3 - Check C2679( 1nF ), D6679, C2695( 2.2nF ), R3623( 8R2 ), D6667, D6609,
D6610, Tr7702, T7677 o/c collector, D6665 (1N4148 leaky), C2691, C2934,
C2935, loptx faulty, R3665. If voltage +95 V is not present check/replace TS
7677 (BUT 11 AF), TS 7673 (BC 547) and TS 7674 (BC 328) and D 6674.
4 - Check/replace D6702 BZX79-F6V2 zener leaky
Success
Costa
----- Original Message -----
From: babalino <babalino@xxxxxxxxxxxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Monday, May 20, 2002 6:46 PM
Subject: [TechAssist] Philips CP90 chassis problem
>
> Hi, I have X2 Philips CP90 chassis!! with the same problem that is foxing
> me.
> No raster at all, nothing. Although when I put the scope leads next to
the
> flyback I get pulses on the oscilloscope which indicates high voltage
> (although no static can be felt on front of screen)
> I have measured the voltages and it has 330V across the filter capacitor
(UK
> 240V line) and the voltages that are used by the TV seem to be low.
> IE 95V line is 32V, 22V line is 8V, just wondering if anybody can help
me -
> it must be a common problem as I have 2 the same!!
> No sound at all. Checked around and the components, diodes, etc seem to
be
> ok. I think I need to be directed fairly precisely on this one!
> Thanks again from babalino
>
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