JVC RC-XC3BK

RC — XC3BK B/E/EN/G/GI :
Test Tape Adjustment and Confirmation Methods Stand. values} Adjust
Recording and Test tape While applying a 1 kHz reference frequency level | Distortion rate
Replaying ‘AC - 225 to the [AUX IN] terminal, confirm that the value of | :Within 5%
Distortion Rates Measurement distortion rates indicated by a distortion meter
output terminal during recording and replaying are within 5%.
‘Speaker terminal
Measurement input
terminal
[AUX IN] terminal
1. While applying a 1 kHz reference frequency Replaying level
level to the [AUX IN] terminal, pick up the input | difference
signal halfway during recording, and perform _| :36 dB or over
signal- free recording.
2. Confirm that the difference between the
replaying level of the recorded section and that
of the signal- free section is 36 dB or more.
Contirmation of Test tape
Recording and ‘AC - 224
Replaying S/N Measurement
Ratios output terminal
‘Speaker terminal
Measurement input
terminal
[AUX IN] terminal
Hi Adjustment of Tuner
* There is no need to adjust the FM and AM IF circuits.
Test Tape Adjustment and Confirmation Methods Stand. values
AM tracking Measurement 1. It should be possible to receive 531 kHz
adjustment output terminal (signal).
CN1: 2. In case the voltage at TP9 exceeds 5 Vwhen |5.0+0.1V
AM output terminal receiving 1,629 kHz, adjust the voltage to 5.0
TP9: V+0.1 V with L4.
Measurement input | 3. While receiving 603 kHz, adjust the voltage at | Output
Adjust
L4
L3
terminal: Standard CN1 to become maximum with L3. ‘Maximum
loop antenna 4. While receiving 1,404 kHz, adjust the voltage | Output TC2
at CN1 to become maximum with TC2. :Maximum
5. By repeating the adjustment steps in Items (3)
and (4) above, confirm that there is not any
change in the voltage.
44 (No. 1991)