I am repairing this Teac TV ctm687 which has a grainy picture on all channels; even when using the vcr (however the tapes play a normal picture. Hence I suspect the tuner (oscar 2900kkc) for which I measure 7.87 volts at the AGC pin which goes to i/c TDA8305A pin 5 which according to TV schematics should only have 3.9 volts. My B+ at the tuner is 12.11 and I wonder if this is the correct supply voltage to the tuner. Thanks in advance. Al
- posted
18 years ago