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RCA Projo PTK 195 NB no sound pix okMarch 29 2007 at 8:56 PM
No score for this post | raymond (no login) |
| The set sound suddenly quit. Audio works at the audio output connector.
Any ideas thanks in advance....
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| Author | Reply |
Anonymous
(no login) | Re: RCA Projo PTK 195 NB no sound pix okNo score for this post | March 30 2007, 3:10 AM |
unplug tv for 2 minutes & then try it.
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Frank
(no login) | Re: RCA Projo PTK 195 NB no sound pix okNo score for this post | March 30 2007, 4:16 PM |
Check R11625,R11626.C11631,cr11505 SMT.
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Frank
(no login) | Re: RCA Projo PTK 195 NB no sound pix okNo score for this post | March 31 2007, 12:59 PM |
OK desregard what i sad in the previous post cause i thought it was a 203chassis.
Now,Check ic U11600 pin 39 or 40,L,R,and U11901 pin 7,11,then Q11601,and Q11602,also troubleshoot U11900 bias and components .pin 3=25-30 volts,pin 5 should be 6 volts lower than pin 3, Q11900-b 4.5vdc possible IC damage. of caurse you need a scope and a sckmatic to check the wave forms at some pins.
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Frank
(no login) | Re: RCA Projo PTK 195 NB no sound pix okNo score for this post | March 31 2007, 1:04 PM |
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raymond
(no login) | Volume OSD is not presentNo score for this post | March 30 2007, 10:02 PM |
One thing I also notice, the volume OSD is not present when push the volume. Other fuction like menu or channel OSD is present. thanks in advance.
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