PMC-20
SERVICE MANUAL
Ver 1.0 2000. 02
Model PMC-20 is almost same as PMC-107 US model. This manual contains only the points which differ from PMC-107 US model. For the information not contained in this manual, please refer to PMC-107 service manual (9-924-914-S). ( ) : Refer to page of this manual (PMC-20) (( )) : Refer to page of PMC-107
US Model
1. ELECTRICAL ADJUSTMENTS ((Page 14)) TUNER SECTION
� FM Section
0 dB = 1 µV
� Connecting Level Meter (FM and AM) level meter (range: 0.5�5 V ac) 32 � TP (FM ANT) 0.01 µF set phones jack set
Setting: BAND switch: FM
FM RF signal generator
22.5 kHz frequency deviation by 400 Hz signal output level : as low as possible
� Connecting Digital Voltmeter (FM and AM) digital voltmeter
� AM Section
Setting: BAND switch: AM
AM RF signal generator
100 k� TP (VT)
Put the lead-wire antenna close to the supplied MW/LW loop antenna.
30% amplitude modulation by 400 Hz signal
� Repeat the procedures in each adjustment several times, and the frequency coverage and tracking adjustments should be finally done by the trimmer capacitors.
