Andy's Techie Stuff

Thanks Martin for the information on the FFC cable. However I have replaced my 38cm long FFC cable to the HDD with a standard PC 40 pin IDE cable, a short length of FFC cable and a modification to the existing IDE to FFC adapter to join the two together. It does not look as elegant as the JVC FFC ca...

A belated update. Further test showed that the 45v rail was at zero volts . The 45 volt rectifier D5207 was shorted which had caused the 12v and 5v rails on the same winding to be at low voltage. I replaced D5207 and C5207 and the machine is now working. I wonder if the failure of D5207 could also h...

Andy, thanks for the comments and for all the valuable information on the site. Your thoughts about the psu tripping sounds possible and I will check the underboard resistors again. I managed to download a JVC service manual from a Russian site today (in english ) so now I have full circuit diagrams...

I aquired this hdd recorder with a report of a blown fuse. I was going to salvage the 160g hdd but when I opened the machine it all looked in very good condition except for an indication of slight overheating at IC 5101 which had one pin fused. All the capacitors looked good with no leaks or bulges ...