ELECTRICAL ADJUSTMENT
< TUNER SECTION >< TAPE SECTION >
MAIN C.B1. AM VT Adjustment5. Tape speed Adjustment (DECK2)
Settings: ? Test point: JW005Settings: ? Test tape: TTA-1101
? Adjustment location: L004? Adjustment location: SFR751
Method: Set to AM 1710kHz adjust L004 so that the testMethod: Play back the test tape with DECK1 and adjust
point becomes 6.0V?0.05V.SFR751 so that the output frequency is 3000Hz.
L002After the adjustment, check that the frequency of
L0072. AM Tracking AdjustmentDECK2 is 3000?45Hz.
L003 (Bar-Ant.), L007 ........................................... 600kHz
IC001TC001................................................................... 1400kHz6. Azimuth Adjustment (DECK1, DECK2)
L005Settings: ? Test tape: TTA-1420
JW005L0063. FM VT Adjustment? Adjustment location: Head azimuth
Settings: ? Test point: JW005adjustment screw
L004? Adjustment location: L006Method: Play back the 8kHz signal of the test tape and
Method: Set to FM 108.0MHz adjust L006 so that the testadjust screw so that the output becomes maxi-
TC001
point is 5.5V?0.2V.mum. Next, perform on each FWD PLAY and
REV PLAY mode.
4. FM Tracking Adjustment
L005, L002 ...........................................................87.5MHz
L003SFR751
PRACTICAL SERVICE FIGURE
< TUNER SECTION >< CASSETTE SECTION >
< FM SECTION >Tape speed:3000Hz?45
Wow & flutter:Less than 0.38% (JIS RMS)
Sensitivity:18?5dB (87.5MHz)
(THD 3%)18?5dB (98.0MHz)Take-up torque:30-60g-cm (DECK 1/2)
F.F torque:55-140g-cm (DECK 1/2)
18?5dB (108.0MHz)
Signal to Noise Ratio:65?5dB (98MHz)Rew torque:55-140g-cm (DECK 1/2)
Back tension:3?2g-cm
(Input 54dB)
Distortion:Less than 2% (98MHz)S/N ratio:More than 40dB
Distortion:Less than 3.0% (PB)
(Input 54dB)Noise (PB):Less than 1mV (AC/DC, MIN)
Intermediate frequency:10.7MHz
Stereo separation:More than 22dBErasing Ratio (W/FILTER):More than 50dB
< AM SECTION >
Sensitivity:54dB?5dB (600kHz)
(S/N 10dB)53dB?5dB (1000kHz)
49dB?5dB (1400kHz)
RPH (DECK1) / PH (DECK2)Distortion:Less than 5% (1000kHz)
(Input 74dB)
Intermediate frequency:450kHz?1.2kHz
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