[TechAssist] Re: Hitachi Projo Model 50UX18B\AP43 chasis\
- From: Eric Manuel <tvman@xxxxxxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Fri, 29 Apr 2005 15:06:43 -0230
Mando check this out Eric
Hitachi ap43 shutdown could lift zd932 & set would stay
on,replacing q935 & c985 fixed the set
Eric
E M Electronics
Deer Lake Nfld
Canada
tvman@xxxxxxxxxxxxxxx
armando guerra wrote:
> This set came in dead.The relay did click.The regulator was bad and also
> zd905.I replaced both and I now have a nice picture but once the set
> runs any where from 30 to 45min,if I shut the tv off,turn it back on,it
> only clicks.I can hear like chirping sound or a high voltage pulsing
> (trying to come but won't).Now,if I freeze spray any one of D904,D905,or
> R912,the set comes back on again with a nice pix.I have replaced all 3
> of those parts but still does the same thing.I used the oem for the
> regulator.I have tried to dnload the manual from both Hitachi and
> tech-assist but when it gets to about the middle of the dnload,it quits
> and say's " This has performed an illegal operation and will shut dn.
> So,I loose my dn load.I know I am asking too much but would someone here
> be able to look at the power supply section and see what may be causing
> this problem.Maybe something wrong with the hot ground or something.Need
> some help.Its very strange because I can get the tv to work by cooling
> off any of the above parts and yet its neighter of them.I have checked
> all caps and zeners in the reg.ckt and have replaced the ones that were
> bad.Running out of idea's on this probem.Thanks.
> Mando
> Birdie's TV & Electronics
> Casa Grande, AZ
> PS,maybe someone can scan just the regulator area and send it to me via
> a pdf file.
>
> -----------------------------------------------------------------------------
> This Email List is Public. Remove: http://www.tech-assist.org/remove.htm
> Lost Password: http://www.tech-assist.org and select "Login Problems?".
> Appliance Repair List: http://www.tech-assist.org/secure/tip/chatjoin.htm#app
> Email Archives: //www.freelists.org/archives/techassist/
>
-----------------------------------------------------------------------------
This Email List is Public. Remove: http://www.tech-assist.org/remove.htm
Lost Password: http://www.tech-assist.org and select "Login Problems?".
Appliance Repair List: http://www.tech-assist.org/secure/tip/chatjoin.htm#app
Email Archives: //www.freelists.org/archives/techassist/
Other related posts:
