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Stereo Modulator VP-7637A ( Panasonic )

[Outline] [Trouble-shoots]
[Power on drift of the pilot signal level] [Disassembling of the clock gen.] [Replace the capacitors]
[Check the voltage of the memory back up battery ]

Fig1. Set the pilot level to 10% but....	Fig.2 The level was less than 10% and wasn't stable.

Fig.3 Open the top cover.	Fig.4 The modulator pwb.

Fig.5 Signal from the clock generator ( J115 pin#3)	Fig.6 And the signal level is drifting.