[TechAssist] Re: apple colorsync monitor
- From: "David Lessard" <mrfixit@xxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Mon, 27 Jan 2003 16:04:57 -0500
OK, if its a vertical problem this fix may apply,
Apple colorsync M3705 monitor displays half screen verticle when connected
to computer, but internal signal, controls etc. display ok. Check connector
of H-deflection yoke for bad solder joints. In that case, QL-23 is also bad
(replace!). Replace RL163 (even if it measures ok!!). Another cause is a bad
capacitor CL-9. Most of the time one pin is burnt. In that case, replace the
capacitor and also the above QL23 abd RL163. If this does not solve your
problem, check if the collector of TL23 is about 50-60V dc. If not, check
QL2. We had two cases with the same problem caused by a shortcircuit between
QL3 and the heatsink (replace the siliconrubber).
If its a horizontal problem I'm not really sure where to look.
David
-----Original Message-----
From: techassist-bounce@xxxxxxxxxxxxx
[mailto:techassist-bounce@xxxxxxxxxxxxx]On Behalf Of Doug Keller
Sent: Monday, January 27, 2003 3:43 PM
To: techassist@xxxxxxxxxxxxx
Subject: [TechAssist] Re: apple colorsync monitor
I think he means horizontal deflection. He said "1 inch wide"
not "1 inch high".
Doug
David Lessard wrote:
>
> Do you mean vertical deflection?
>
> David Lessard
> Alexandria Electronics
> mrfixit@xxxxxxxxxxx
>
> -----Original Message-----
> From: techassist-bounce@xxxxxxxxxxxxx
> [mailto:techassist-bounce@xxxxxxxxxxxxx]On Behalf Of Royal19960@xxxxxxx
> Sent: Monday, January 27, 2003 3:31 PM
> To: techassist@xxxxxxxxxxxxx
> Subject: [TechAssist] apple colorsync monitor
>
> Hi all. I have a Apple colorsync family m3705. I have a loss of horiz
> deflection. I only have a width of about 1 inch. I mainly work on TV units
> and do not have any drawings for this unit. Any help?
> Thanks
>
> Roy E. Adams
> Bonded TV Service
> 5158 W Forest Home Ave
> Milwaukee, WI 53219
> 414-541-9111
> ROYAL@xxxxxxx
>
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--
Doug Keller "Learn from the mistakes of others,
Wis-Kel Electronics because you won't live long enough
101 Freeland Ave. to make them all yourself"
Terra Alta, WV
USA 26764
dek@xxxxxxxxxx
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