Help please fixing Panasonic VCR
- Thread starter cableman
- Start date
spiney
Guest
- My Satellite Setup
- Pace 2200 Sky digibox with ftv card, Comag SL65 FTA sat receiver, 40cm Sky minidish, Setpal terrestrial receiver (for free uk tv only!).
- My Location
- Midlands
more info needed.
when you say no uhf, do you mean loopthrough has failed, that you can no longer plug aerial into vcr, then vcr into tv? if that still working, then rf amp ok, so probably modulator is as well.
Sure it's not just your tv lost the channel? try playing tape and scanning all uhf channels on tv.
is ouput channel a screw on back (v old!)? Or set by software, if so has it changed, or software glitched? try unplugging vcr from mains, waiting 1 min, then resetting everything.
if modulator gone then, yes you can probably get spare one, soldering needed, so maybe new vcr better, they're very cheap.
hope helpful.
when you say no uhf, do you mean loopthrough has failed, that you can no longer plug aerial into vcr, then vcr into tv? if that still working, then rf amp ok, so probably modulator is as well.
Sure it's not just your tv lost the channel? try playing tape and scanning all uhf channels on tv.
is ouput channel a screw on back (v old!)? Or set by software, if so has it changed, or software glitched? try unplugging vcr from mains, waiting 1 min, then resetting everything.
if modulator gone then, yes you can probably get spare one, soldering needed, so maybe new vcr better, they're very cheap.
hope helpful.
Thanks Spiney for your reply. The situation is that although I can loop-through to TV and receive my TV channels on the TV, when I switch on the video there is no change and I can only tune in the TV to the channels as before (no video channel, just as If the VCR were in standby). No RF channel adjust on back of machine. Equally, with a tape playing I can not find this when attempting to tune TV. But you are right that the machines are so cheap (dinosaus?) nowadays.
- My Satellite Setup
- Promax HD Ranger+ spectrum analyser.
- My Location
- Derbyshire
Some videos have an rf on/off switch on the back and some have it in internal menus, has the rf out ever worked?
My HD600B has it between the scart sockets, it is also the test signal switch.
My HD600B has it between the scart sockets, it is also the test signal switch.
spiney
Guest
- My Satellite Setup
- Pace 2200 Sky digibox with ftv card, Comag SL65 FTA sat receiver, 40cm Sky minidish, Setpal terrestrial receiver (for free uk tv only!).
- My Location
- Midlands
if all that fails, it would mean taking "lid" off modulator top and sticking 'scope probe in to see if oscillator's working .......
- My Satellite Setup
- Triple Dragon, Dreambox 8000, Echostar AD3000ip, TBS6522,6925,6983 PCie cards.
Gibertini 1.25m motorised dish driven by the AD3000, with either Inverto BU Quad or Norsat / XMW Ka LNBs . SMW 1.05m + 3 other dishes. Speccy: Promax HD Ranger+
- My Location
- The Flatlands of East Anglia
... or get an outboard video modulator (30 quid from Maplin's) if you can't bear to dump your VCR.
Spiney, with the oscillator working at around 600MHz, you're going to need a pretty good 'scope to see the trace... ;)
Llew
Spiney, with the oscillator working at around 600MHz, you're going to need a pretty good 'scope to see the trace... ;)
Llew
- My Satellite Setup
- Triple Dragon, Dreambox 8000, Echostar AD3000ip, TBS6522,6925,6983 PCie cards.
Gibertini 1.25m motorised dish driven by the AD3000, with either Inverto BU Quad or Norsat / XMW Ka LNBs . SMW 1.05m + 3 other dishes. Speccy: Promax HD Ranger+
- My Location
- The Flatlands of East Anglia
Good point. Although I prefer my spectrum analyser.
Llew
Llew