[TechAssist] Re: magnavox C# 32G700-7585 crt voltages
- From: John Mielke <maintv2002@xxxxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Thu, 07 Nov 2002 22:37:15 -0700
The common problem with these is burned resistors in the 200v source.
It causes a bright screen with retrace that shuts down in 5 seconds. In
the G7 chassis that would be R3643 (1 ohm) or R3840 (100 ohm quarter
watt) Also check C2840 (10uf 250v). If it is going very green then it
could be the CRT or IC7830 (TDA6107Q). The voltages shoud be:
1 green in +2.3v
2 red in +2.0v
3 blue in +2.1v
4 gnd
5 5.4v VIP
6 +205v
7 blue out +130v
8 red out +144v
9 green oout +130v
John.
Mitchs Electronics wrote:
> Hi
> Have a newer Magnavox with green screen and retrace lines. Goes into
> shutdown in 5 seconds. Looks like green cathode in crt shorted
> Anyone have voltages for crt driver ic TDA6107Q or voltages for crt R32GYWH.
> Thanks
> Rick Mitchell
> Mitch's Electronics Ser.Co.
> Mitchstv@xxxxxxxxxx
> 3935 south 20th
> Lincoln, Nebraska 68502
>
>
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--
John Mielke
Main TV
Longmont,Co
303 776 6955
maintv2002@xxxxxxxxxxxxx
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