Now downloading free:Sharp DV5105H, DV5107H, DV5132H
Download Sharp DV5105H, DV5107H, DV5132H docs - Home electronics, consumer electronics, professional electronics - Television sets (plasma, HDTV, LCD, TFT, Big screen tv), Monitors (TFT-LCD panels, conventional CRT), VCR, DVD, Car Audio etc.
|File name:||CTV991206_Bulletin_®_.pdf |
[preview DV5105H, DV5107H, DV5132H] new window
|Original Chassis:||Symptom: Intermittent Failure Of The Power Supply|
|Descr:||Television Technical Bulletin - pag. 1|
|Group:|| > > |
|Information about the files in archive:|
|File name||Text |
|CTV991206_Bulletin_®_.pdf||CTV991206 TELEVISION TECHNICAL BULLETIN
Month of Issue: December 1999 Classification: White Page 1 of 1
SYMPTOM Intermittent failure of the power supply. CAUSE ACTION Various components. If Q702 immediately goes short circuit when the set is turned on, check that D716 has not gone short circuit or that T700 (chopper transformer) is not short circuit across pins 7 and 2. Note that D716 is connected across Q702 emitter earth return resistor, as this is only 0.22, D716 needs to be removed before testing. If the power supply works, but fails after being run on soak test, replace D708 and D709, also check that the main smoothing block (C705) has not got loose rivets. In some cases it is possible for the HT to rise significantly during standby, the normal value of the HT in standby is anywhere between 120VDC and 130VDC ( this rise is due to the line output load being removed). If this increases above 130VDC, there is a problem. Check the feedback circuit a|
|Download restrictions information:|
|Month||5000||64||Wrong count ?|
Download >> To download the file, please, click here !
Did You find this Service Manual useful? Share it:
Was this file useful ? Share Your thoughts with the other users.
User ratings and reviews for this file:
Average rating for this file: 0.00 ( from 0 votes)Similar Service Manuals : - - - - - - -