[TechAssist] Re: hitachi projo 53uwx10ba question
- From: Phil Bader <tjanphyl@xxxxxxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Fri, 01 Jul 2005 11:56:06 -0400
57swx20b fixHi fellows tech. , monitoring QH01 (H.V.out )the wave has
lot of disturbance ,tv works for 2 minutes and s/d. ,the F.B. p/#
bw02822 $ 37.94 was suspected ,replaced ,and the tv works perfect. note
: the old and new FB. ring exactly the same (using sencore) .tv is year
2002..thanks Abe
Go to http://www.hitachiserviceusa.com/ and sign up for a user ID and
password. Excellent tips, manuals, troubleshooting guides, ETC and it is
open to all Technicians, not just ASC's
Philip Bader
Jan Phyl TV Inc. (estab. 1976)
3420 Recker Hwy. Winter Haven, Fl. 33880
Fax (863) 299-8821
email: tjanphyl@xxxxxxxxxxxxxxx
Phil Bader wrote:
>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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