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AM-FM Stereo Tuner KT-1100D (Kenwood)

[Outline] [Front view] [Inside view] [Trouble-shoots]

Fig.1 KT-1100D

• PLL discriminator for FM det.
• MC1495 is used for MPX.
• THD=0.008% @1kHz Stereo

Trouble	Cause	Repair
FM audio signal was very distorted.	A chemical capacitor attached between 1/2 vcc (for operational amps ) and vss was shoted.	Replace the shorted capacitor.