Home |
Search |
Today's Posts |
|
Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
Reply |
|
LinkBack | Thread Tools | Display Modes |
#1
|
|||
|
|||
Hitachi VT-2700A
Well here's the problem, when it trys to play it
will engage and everything goes into place fine (checked and all looks good) and the idler will go to the supply rell, but it moves very slow and jerky and then after 2 seconds shuts it's self off. Check the movement of the capstan motor. If it's erratic, you might want to check the electrolytics on the capstan motor assembly. You'll also want to replace the mode switch if you cannot dismantle it and clean it completely of any corrosion. Hitachi mode switches are real nasty about causing big functional problems when they are worn out or severely corroded, like having a Hitachi VCR act partially braindead because of a non-functioning mode switch! - Reinhart |
#2
|
|||
|
|||
Hitachi VT-2700A
I have removed some brown glue of an IC (didn't help), I'll check the caps
next, thanks for the information. "LASERandDVDfan" wrote in message ... Well here's the problem, when it trys to play it will engage and everything goes into place fine (checked and all looks good) and the idler will go to the supply rell, but it moves very slow and jerky and then after 2 seconds shuts it's self off. Check the movement of the capstan motor. If it's erratic, you might want to check the electrolytics on the capstan motor assembly. You'll also want to replace the mode switch if you cannot dismantle it and clean it completely of any corrosion. Hitachi mode switches are real nasty about causing big functional problems when they are worn out or severely corroded, like having a Hitachi VCR act partially braindead because of a non-functioning mode switch! - Reinhart |
#3
|
|||
|
|||
Hitachi VT-2700A
Here's some more information to add to my original post, I found some
suspect readings off of the power supply here's the schematic with the spec rating and the rating I got (in red) ITS HUGE so it will take about 1 to 5 minnutes to load off of dial up. Here's the link: http://web.cnyconnect.net/donato/PSU.JPG I've gone threw some suspect parts already, checked the cap (with a DMM capacitance test don't have a ESR meter) and resistor on the AC40 volt that reads 30. Thanks in advance to any help, -glasnostJDC "glasnostJDC" wrote in message ... Hello, I picked up this unit. Anyway I ordered a new clutch, idler, pitch roller, and belt and replaced those before going furthure on the unit (all visibly worn and aged). Well here's the problem, when it trys to play it will engage and everything goes into place fine (checked and all looks good) and the idler will go to the supply rell, but it moves very slow and jerky and then after 2 seconds shuts it's self off. Fast Forward and reverse work fine, it just won't play. I've just got into VCRs and havn't experianced this problem yet and can't seem to find anything that resembles my problem. My only idea is the Mode Switch, I've tryed cleaning it but that didn't do any good. I do have a service manual for the unit and checked alignment by the book for the mode switch and master cam and it checks fine, and the mode switch does go to the right positon. Any ideas? I'm going to tackle the large amount of "bad" joints next (what fun;-) but I'm just looking for suggestions so that I make sure to check all possible routes. Thanks for any help anyone has to offer. VCR: Hitachi Model Number: VT-2700A Serial Number: 80404588 -- -glasnostJDC |
Reply |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
Hitachi TV Problems ? | Electronics Repair | |||
HElp - Hitachi F1000a | Woodworking | |||
Hitachi M12v question | Woodworking | |||
Hitachi M12V Sale! | Woodworking |