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17

• This mode moves the position to the position durable to vibra-

tion Use this mode when returning the set to the customer after
repair.

Procedure:
1. Press  `/1  button to turn the set ON.
2. Press three  DVD  button and  `/1  button simultaneously.
3. After the “STANBY” display blinks six times, a message

“LOCK” is displayed on the fluorescent indicator rube, and the
DVD ship mode is set.

• This mode moves the pick-up to the position durable to vibra-

tion. Use this mode when returning the set to the customer after
repair.

Procedure:
1. Press  `/1  button to turn the set ON.
2. Press three buttons  ENTER ,  DISC 1 , and  DVD  button

simultaneously.

3. After the “STANDBY” display blinks six times, a message

“LOCK” is displayed on the fluorescent indicator tube, and the
DVD ship mode is set.

• The sequence during the aging mode is following as below.

Disc 1 Chucking

TOC Read

Tray Turn

2 seconds

Track 1 Play

Last Track Play

2 seconds

18

• This mode is used to enable infinite repetitions.

Normally, the number of repetitions allowed is 5.

Procedure:
1. Press  `/1  button to turn ON the power supply.
2. Set the function “DVD”.
3. Press three burtons  x  ,  MUSIC EQ  and  DISC 2  is simulta-

neously.

4. Infinite repetitions is enabled.
5. This state is maintained ( memorized ) until COLD RESET is

executed.

1. Clean the following parts with a denatured alcohol-moistened

swab:

record/playback heads

pinch rollers

erase head

rubber belts

capstan

idlers

2. Demagnetize the record/playback head with a head

demagnetizer.

3. Do not use a magnetized screwdriver for the adjustments.
4. After the adjustments, apply suitable locking compound to the

parts adjusted.

5. The adjustments should be performed with the rated power

supply voltage unless otherwise noted.

3.06 N • m to 6.96 N • m

31 to 71 g • cm

(0.43 – 0.98 oz • inch)

0.19 N • m to 0.58 N • m

2 to 6 g • cm

(0.02 – 0.08 oz • inch)

3.06 N • m to 6.96 N • m

31 to 71 g • cm

(0.43 – 0.98 oz • inch)

0.19 N • m to 0.58 N • m

2 to 6 g • cm

(0.02 – 0.08 oz • inch)

6.96 N • m to 14.02 N • m

71 to 143 g • cm

(0.98 – 1.99 oz • inch)

9.80 N • m

100 g or more

(3.53 oz or more)

9.80 N • m

100 g or more

(3.53 oz or more)

CQ-102C

CQ-102C

CQ-102RC

CQ-102RC

CQ-201B

CQ-403A

CQ-403R

FWD

FWD
back tension

REV

REV
back tension

FF/REW

FWD tension

REV tension

19

0 dB=0.775 V

1. Demagnetize the record/playback head with a head

demagnetizer.

2. Do not use a magnetized screwdriver for the adjustments.
3. After the adjustments, apply suitable locking compound to the

parts adjust.

4. The adjustments should be performed with the rated power

supply voltage unless otherwise noted.

5. The adjustments should be performed in the order given in this

service manual.  (As a general rule, playback circuit adjustment
should be completed before performing recording circuit
adjustment.)

6. The adjustments should be performed for both L-CH and R-

CH.

7. Switches and controls should be set as follows unless otherwise

specified.

• Test Tape

P-4-A100

10 kHz, –10 dB

Azimuth Adjustment

WS-48B

3 kHz, 0 dB

Tape Speed Adjustment

P-4-L300

315 Hz, 0 dB

Level Adjustment

  Perform this adjustments for both decks

Procedure:
1. Mode:  Playback

set

main board
CN607
Pin 

5

 (L-CH)

Pin 

7

 (R-CH)

main board
CN607
Pin 

6

 (GND)

+
–

level meter

test tape
P-4-A100
(10 kHz, –10 dB)

2. Turn the adjustment screw and check output peaks. If the peaks

do not match for L-CH and R-CH, turn the adjustment screw
so that outputs match within 1dB of peak.

3. Mode:  Playback

4. After the adjustments, apply suitable locking compound to the

pats adjusted.

Adjustment Location: Playback Head (Deck A).

Record/Playback/Erase Head (Deck B).

Screw
position

L-CH
peak

within
1dB

Output
level

L-CH
peak

R-CH
peak

within
1dB

Screw
position

R-CH
peak

MAIN
board
CN607
set

test tape
P-4-A100
(10 kHz, –10 dB)

pin 

7

oscilloscope

L-CH

R-CH

V

H

waveform of oscilloscope

in phase 45

°

90

°

135

°

180

°

good

wrong

pin 

6

pin 

5

L

R

forward

reverse

20

Procedure:
1.

Supply a 25 dB 98 MHz signal from the ANTENNA terminal.

2.

Tune the set to 98 MHz.

3.

Adjust RV11 to the point (moment) when the TUNED indicator
will change from going off to going on.

Adjustment Location: MAIN board

Procedure:
1.

Supply a 60 dB

  

98 MHz signal from the ANTENNA terminal.

2.

Tune the set to 98 MHz.

3.

Measure voltage between pin 22 and pin 3 of IC 11.  Adjust
T11 ubtil the voltage becomes 0 V.

Adjustment Location: MAIN board

FM RF SSG

75 

Ω

 coaxial

Carrier frequency : 98 MHz
Modulation           : AUDIO 1 kHz, 75 kHz
                              deviation (100%)
Output level          : 25 dB  (at 75 

Ω

 open)

FM ANTENNA terminal
(TM1)

set

Ω

Ω 

T11

NULL

RV11

FM TUNED LEVEL

1

12

24

13

IC11

TM1

IC1104

       RFMON signal waveform

• Standard value

DVD

TDV-520CSO

1.09 

± 0.2 Vp-p

(J-2501-236-A)

CD

LUV-P01

1.05 

± 0.2 Vp-p

(4-999-032-01)

VOLT/DIV: 200 mV
TIME/DIV: 500 ns 

RFMON level

After parts related to the servo circuit (RF amplifier (IC001), DSP
(IC509), motor driver (IC501), EEPROM (IC203) so on) are
replaced, re-adjusting the servo circuit is necessary. Select “ALL”
at    “1. DRIVE AUTO ADJUSTMENT” (Refer to page 3
(SUPPLEMENT-1) in TEST MODE) and adjust DVD-SL (single
layer), CD and DVD-DL (dual layer).

Perform a RFMON level check before exchanging optical pick-up.

Measurement Point: MB board CN501

17 pin (RFMON) — 1 pin (AGND)