Sony MDX-C5970R User Manual

– 16 –

This set have the test mode function. In the test mode, FM Auto
Scan/Stop Level and AM (MW) Auto Scan/Stop Level adjustments
can be performed easier than it in ordinary procedure.

<Set the Test Mode>
1. Turn ON the regulated power supply. (The clock is displayed)

 Press the

[OFF]

button, if the clock is not displayed.

2. Push the preset 

[4]

 button.

3. Push the preset

[5]

button.

4. Press the preset

[1]

button for more than two seconds.

5. Then the display indicates all lights, the test mode is set.

<Release the Test mode>
1. Push the 

[OFF]

 button.

MD section adjustments are done automatically in this set.

Adjust the tuner section in the sequence shown below.

1. FM Auto Scan/Stop Level Adjustment.
2. FM Stereo Separation Adjustmnet.
3. AM (MW) Auto Scan/Stop Level Adjustment.
4. RDS S-Meter Adjustment. (MDX-C5960R/5970R)

 

[SOURCE]

 button: FM

FREQUENCY SELECT switch: FM 200 k (E model)

Procedure:
1. Set to the test mode.
2. Push the 

[SOURCE]

 button and set to FM.

Display

0 dB=1 µV

See the adjustment location from on page 18 for the ad-
justment.

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

3. Adjust with the volume RV2 on TU1 so that the “FM” indica-

tion 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

*1: MDX-C5960R/C5970R indicate “98.00”.

Adjustment Location: See page 18.

 

[SOURCE]

 button: FM

FREQUENCY SELECT switch: FM 200 k (E model)

L-CH Stereo separation: A-B
R-CH Stereo separation: C-D
The separations of both channels should be equal.

Specification: Separation more than 30 dB

Adjustment Location: See page 18.

FM RF signal

generator

Carrier frequency: 97.9 MHz (MDX-C5970)

98.0 MHz (MDX-C5960R/C5970R)

Output level

: 22 dB (12.6 

µ

V)

Mode

: mono

Modulation

: 1 kHz, 22.5 kHz deviation (30%)

0.01 

µ

F

set

antenna jack (J1)

FM RF signal

generator

0.01 

µ

F

set

antenna jack (J1)

+
–

LINE OUT jack (CNP300)

level meter

10 k

Ω

MDX-C5970

MDX-C5960R/
C5970R

Carrier frequency

97.9 MHz

98.0 MHz

Output level

60 dB (1 mV)

70 dB (3.2 mV)

Mode

stereo

stereo

main

1 kHz, 33.75 kHz

1 kHz, 16.25 kHz

deviation (45%)

deviation (21.7%)

Modulation

sub

1 kHz, 33.75 kHz

1 kHz, 16.25 kHz

deviation (45%)

deviation (21.7%)

19 kHz

7.5 kHz

7.5 kHz

pilot

deviation (10%)

deviation (10%)

FM Stereo

Level meter

Level meter

signal generator

connection

reading (dB)

output channel

L-CH

L-CH

A

B

R-CH

L-CH

Adjust RV4 on TU1

for minimum reading.

R-CH

R-CH

C

D

L-CH

R-CH

Adjust RV4 on TU1

for minimum reading.

SHUF

*1

SHUF

*1