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FM-AM Standard Signal Generator MSG-2570 ( Meguro )

[Outline] [Trouble-shoots]
[Reset the control logic board] [Polish the contact of the keys] [Replace an operational amplifier]

Fig1. Remove the front panel from the chassis.	Fig.2 Flip the panel.

Fig.3 Remove the key tops.	Fig.4 The key is took apart to four pieces.

Fig.5 Backside of the contact is oxidized so much.	Fig.6 Another ends of contacts are oxidized too.