XR-C7200R - Sony Car Audio Service Manual (repair manual). Page 17

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[SHIFT]

 button

: ON (light up SET UP and

PLAY MODE)

Preset 

[3]

 (PLAY MODE) button : NR off

SOUND (BAS) button

: Center

SOUND (TRE) button

: Center

SOUND (BAL) button

: Center

SOUND (FAD) button

: Center

SOUND (VOL) button

: Maximum

Procedure:
1. Put the set into the FWD PB mode.
2. Adjust RV231 (L-CH) and RV241 (R-CH) so that the level

meter reading is –6±1 dB (0.35 to 0.44 V).

Adjustment Location: See page 20.

set

+
–

test tape
P-4-D400
(400 Hz, 0 dB)

level meter

MAIN board

TP (DOLBY-L)/
TP (DOLBY-R)

      

 0 dB=1 µV

When the tuner unit is defective, replace it by a new one be-
cause its internal block is difficult to repair.

 Adjust the tuner section in the sequence shown below.

1. FM Auto Scan/Stop Level Adjustment
2. FM Stereo Separation Adjustment
3. FM RDS S-Meter Adjustment
4. MW Auto Scan/Stop Level Adjustment

[SOURCE]

 button: FM

Procedure:
1. Set to the test mode. (See page 16.)
2. Push the 

[SOURCE]

 button and set to FM.

Display

3. Adjust with the volume RV2 on TU10 so that the “FM” indi-

cation turns to “FM0” indication on the display window.
But, in case of already indicated “FM0”, turn the RV2 so that
put  out light “0” indication and adjustment.

Display

Adjustment Location: See page 20.

set

antenna jack (J10)

FM RF signal

generator

Carrier frequency

: 98.0 MHz

Output level

: 22 dB (12.6 

µ

V)

Mode

: mono

Modulation

: 1 kHz, 22.5 kHz deviation (30%)

0.01 

µ

F

REG

SHUF1

REG

SHUF1