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See the adjustment location from on page 23 for the adjustment.
TUNER SECTION
0 dB = 1 µV
TAPE SECTION
0 dB = 0.775 V
Cautions during repair When the tuner unit is defective, replace it by a new one because its internal block is difficult to repair. Note on Adjustment The adjustments of tuner section, should be performed according to the following sequence. 1. FM Auto Scan/Stop Level Adjustment 2. FM Stereo Separation Adjustment 3. AM Auto Scan/Stop Level Adjustment FM Auto Scan/Stop Level Adjustment Setting : SOURCE button : FM FREQUENCY SELECT switch : FM 200k
FM RF signal generator antenna terminal 0.01 µF set
Tape Speed Adjustment Procedure : 1. Put the set into the FWD PB mode.
test tape WS-48A (3 kHz, 0 dB)
frequency counter 10 k� set AUDIO OUT REAR
Specification : Constant speed Frequency counter 3,010 to 3,030 Hz Adjustment Location : Capstan motor internal volume (See page 23) DOLBY Level Adjustment Setting : Preset 3 (SHUF/;) button : Light down mark ; (DOLBY OFF)
test tape P-4-D400 (400 Hz, 0 dB)
Carrier frequency Output level Mode Modulation
: 97.9 MHz : 22 dB (12.6 µV) : mono : 1 kHz, 22.5 kHz deviation (30%)
level meter
Procedure : 1. Set to the test mode. 2. Push the SOURCE button and set to FM. Display
set main board TP-L TP-R
SHUF1
Procedure : 1. Put the set into the FWD PB mode. 2. Adjust RV100 (L-CH) and RV200 (R-CH) on main board so that level meter reading is � 6 ± 0.5 dB (0.37 to 0.41 V). Adjustment Location : See page 23.
3. Push the preset 3 button. Display
PRESET
SHUF1
4. Adjust with the volume RV2 on TU1 so that the �FM� indication turns to �2� indication on the display window. But, in case of already indicated �2�, turn the RV2 so that put out light �2� indication and adjustment. Display
PRESET
SHUF1
Adjustment Location : See page 23.
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