ELECTRICAL ADJUSTMENTPRACTICAL SERVICE FIGURE
26< RADIO SECTION >
MAIN C.B
Sensitivity:
(IHF, THD 3%)FM Less than 25dB
(S/N 20dB)MW Less than 60dB
(S/N 20dB)SW Less than 40dB (8MHz)
72Intermediate frequency:FM 10.7MHz
AM 455kHz
FM stereo separation:More than 20dB (1kHz)
5
L102< TAPE RECORDER SECTION >
Distortion:Less than 3% (PB, 1kHz)
TC4TC1Less than 8% (REC/PB, 1kHz)
S/N ratio:More than 40dB
L101TC2L108(PB, REC/PB, AC, DC)
TC102TC3Erasing ratio:More than 30dB
L104 L105Wow & Flutter:Less than 0.35% (RMS)
Take-Up Torque:20-60g-cm (FWD, REV)
L107
L109F.F & REW Torque:55-120g-cm
L301Test tape:TTA-100
NORMAL TTA-602
TTA-210
TTA-257
0134
M1
89
< RADIO SECTION >< TAPE RECORDER SECTION >
1. MW/SW IF Adjustment8. Tape speed Adjustment
L109 .......................................................................Condition: Y Test tape: TTA-100455kHz
Y Test point: PHONES JACK
2. MW Tracking AdjustmentY Adjustment location: SFR of deck motor
L101 .......................................................................Method: Play back the test tape and adjust so that the600kHz
TC4.......................................................................output frequency is 3000Hz.1400kHz
3. MW Frequency Range Adjustment9. Azimuth Adjustment
L104 .......................................................................Condition: Y Test tape: TTA-320515kHz
TC102...................................................................Y Test point: PHONES JACK1650kHz
Y Adjustment location:Azimuth adjustment
4. FM Tracking Adjustmentscrew
L107 ........................................................................Method: Play back the test tape and adjust so that the88MHz
TC2........................................................................output is maximum. 106MHz
5. FM Frequency Range Adjustment10. AC Bias Adjustment
L108 ........................................................................Condition: Y Test tape: TTA-63087MHz
TC1........................................................................Y Test point: TP1 109MHz
Y Adjustment location: L301
6. SW Tracking AdjustmentMethod: Set up the recording mode. Adjust L301 so that
L102 ..........................................................................the TP1 becomes 70kHz.4MHz
7. SW Frequency Range Adjustment
L105 .......................................................................3.8MHz
TC3.......................................................................12.5MHz
1314 |
ACEC
