[TechAssist] Re: hitachi projo 53uwx10ba question
- From: Phil Bader <tjanphyl@xxxxxxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Fri, 01 Jul 2005 11:44:28 -0400
Shooting in the dark here, but it refers to your model/ from techrepairCD:
Hitachi~53UWX10B.~shut down~The symptom may be instant shutdown or
intermittent shutdown.~~DP17~The problem may be a cracked circuit foil
in the Deflection power supply between IP01 pin 1 and RP09. This is a
very thin foil that runs next to the~heat sink tab* so pressure on the
sink may cause board to flex. We have had three cases of these.~~~~~
Will keep looking.
Phil
Philip Bader
Jan Phyl TV Inc. (estab. 1976)
3420 Recker Hwy. Winter Haven, Fl. 33880
Fax (863) 299-8821
email: tjanphyl@xxxxxxxxxxxxxxx
Royal19960@xxxxxxx wrote:
>Hi all
>I have a Hitachi 53uwx10ba in the shop.H.V. out , QH01 was shorted. replaced
>it with an origional and replaced the open fuse FP05.
>Now still shuts down but does not open the fuse. If I leave the fuse out it
>will not shut down.
>Here is what I've found.
>Anode of DP18 goes to +2 volts. Cathode of DP18 (30 volt zen) goes to around
>25
>I'm wondering if you have had bad flybacks on this model. It appears to be
>shutting down from excessive current drain.
>Any help?
>Thanks
>Roy
>
>
>Roy E. Adams C.E.T.
>Bonded TV Service
>5158 W ForestHome Ave
>Milwaukee, WI 53219
>414-541-9111 voice
>414-541-2740 fax
>
>
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