| View previous topic :: View next topic |
| Author |
Message |
bob9
Guest
|
 Posted: Sun May 21, 2006 11:49 pm Post subject: troubleshooting a JVC VCR |
 |
|
We've got a JVC VCR model HR-J646 MS and would appreciate assistance: when viewing the recorded tape, it works fine for a while and suddendly you get jagged lines but correct sound. Thought there was somthing wrong with the tape, tried another one and got the same results. What's wrong? Any suggestions for causes and possible repairs warmly welcomed. Thanks  |
|
| Back to top |
|
 |
Genux
Guest
|
| Posted: Mon May 22, 2006 3:03 am Post subject: JVC |
|
|
Excuse me for my bad english...
If sound is OK, probably only video head alignment is wrong!
You have to check alignment of tape and video head by turn "guidanastro?" (tape in and tape out of video head. For best alignment you need of oscilloscope to see (check) waveform of FM packet signal on videohead amplifier output...is a problem to explain fine, for me...
..so check tape alignment
good luck! |
|
| Back to top |
|
|
|
|
|
|
You can post new topics in this forum
You can reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
|
eServiceInfo on FB -
Service Manuals Free Download -
Service Diagrams
Free TV Schematics Download -
HARDW.net -
Pinout Master -
Jabse Service Manual Search -
Jabse.InK -
onTap.bg
SnimkiOt.com -
Poblizo.com : пътешествия
Latest Service Manuals :
8100 ADV PORT REPLICATOR Dell • 2sd1541 Inchange Semiconductor • K610I 6 Sony Ericsson • bdt29f af bf cf df Inchange Semiconducto • LECROY 9420 252C 9424 252C 9450 Remote C • 07 Alignment & Adjustment Samsung • hfe pioneer sg-300 service add en Pionee • Car0336 Sony • AS111 55 Philips • Circuit EP4000 014 Minolta •
|
FAQ
