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21

The cold reset clears all data including preset data stored in the
memory to initial conditions. Execute this mode when returning
the set to the customer.
Procedure:

1. In the standby status, press the  POWER  button to turn the

power on.

2. Press three buttons of  x ,  MODE  and at last  POWER  si-

multaneously.

3. When “RESET” appears, the machine enters standby status.

1. In the standby status, press the  POWER  button to turn the

power on.

2. Press three buttons of  REPEAT  ,  x , and  DSPL/ENT  si-

multaneously.

3. When the panel test mode is activated, LEDs and segments of

LCD are all turned on.

1. In the panel test mode (all LEDs and segments of LCD are

turned on), press the  ROCK  button.

2. On the LCD, date and version are displayed “xxxxxxxx”.

For example, “1127V103”.

3. From this status, press the  DANCE  button, and the destination

is displayed. For example, “1014 AU6” or “1014 U2”

4. To release from this mode, press three buttons of  REPEAT ,

x , and  DSPL/ENT  simultaneously.

The AM tuning interval can be changed over 9 kHz or 10 kHz.
Procedure:

1. Press the  POWER  button to turn the power on.
2. Press the RADIO/BAND button to select TUNER (AM)

function.

3. Select the AM BAND mode and press the  DSPL/ENT  button

for an extended time in the AM BAND state.

4. Then, press the  AUTO PRESET/RADIO/BAND  for an

extended time.

5. Next, press the  PRESET +  PRESET –  button select either

9k/10k.

6. Finally, press the  DSPL/ENT  button to set the selected step.

This mode can move the SLED of the optical pick-up, and also can
turn the optical pick-up laser power on and off.
Procedure:

1. Press the  POWER  button to turn the power on.
2. Press three buttons of  x ,  VOL + , and  SALSA  simulta-

neously.

3. It enters the CD service mode and displays “SERVICE”.
4. To exit from this mode, press three buttons of  x ,  VOL + ,

and  SALSA  simultaneously.

PRESET+ > ,  PRESET– . :

Use these keys to move the SLED.
When  PRESET+ >  is pressed in this mode, the
SLED moves to outer circumference and the message
“SLED OUT” is displayed.
When  PRESET– .  is pressed in this mode, the
SLED moves to inner circumference and the message
“SLED IN” is displayed.

MODE  :

Use this key to turn the optical pick-up laser power
on and off. When the laser power is turned on, the
message “LD ON” is displayed. When the laser
power is turned off, the message “LD OFF” is
displayed.

The past errors of the optical pick-up system (= optical unit + BD
board) is displayed as the BD Errors as shown below.
Procedure:

1. Press the  POWER  button to turn the power on.
2. Press three buttons of  VOL + ,  x  and  DANCE  simulta-

neously.

3. Then, the BD error code is displayed as “D0xxxxxx” (x means

hexadecimal number) on the LCD screen as shown below.

4. Every pressing of the  PRESET+ >  button in this mode

increments the number after “D” starting from “D0” up to
“D4”, and then returns to “D0”. Every pressing of the
PRESET– .  button in this mode decrements the number
after “D”. The smaller the error code number is, the newer the
error content is.

5. To exit from this mode, press the  POWER  button to turn the

power off.

22

Error display example

D 0 02 09 01

1 2 3 4

1

It indicates the error history number
0 to 4: The error code number 0 indicates the newest error.

2

It indicates the error content
01: The focus servo cannot lock-in.
02: GFS is no good (NG).
03: The startup time exceeds the specified period of time (time

over)

04: The focus servo is unlocked continuously.
05: Q code cannot be obtained within the specified period of

time.

06: The tracking servo cannot lock-in.
07: Blank disc

3

It indicates the on-going processing of optical pick-up system
(= optical unit + BD board) when the trouble has occurred.
01: The CD SHIP mode processing is in progress.
02: The POWER OFF processing is in progress.
03: The INITIALIZE processing is in progress.
04: The optical pick-up system (= optical unit + BD board)

is in the stop state.

05: The STOP operation is in progress.
06: The startup processing is in progress.
07: The TOC read-in processing is in progress.
08: The SEARCH operation is in progress.
09: The PLAY operation is in progress.
0A: The PAUSE operation is in progress.
0B: The PLAY – MANUAL SEARCH operation is in

progress.

0C: The PAUSE – MANUAL SEARCH operation is in

progress.

4

It indicates the operation that is being processed when the
trouble has occurred.
It indicates the step number of each processing specified by
3

. Because the numbers of steps are different in each

processing, this number is different in each processing.

23

•

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

swab :

record/playback head

pinch roller

erase head

rubber belts

capstan

idlers

2. Demagnetize the record/playback head with a head

demagnetizer. (Do not bring the head magnetizer close to the
erase head.)

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

the parts adjusted.

5. The adjustments should be performed with the rated power

supply voltage unless otherwise noted.

•

•

FWD

CQ-403A

more than 80 g • cm

(more than 2.82 oz • inch)

2.0 – 8.0 mN • m

(20 to 80 g • cm)

(0.28 – 1.12 oz • inch)

0.15 – 0.6 mN • m

(1.5 to 6 g • cm)

(0.021 – 0.083 oz • inch)

5 – 17.7 mN • m

(50 to 177 g • cm)

(0.7 – 2.48 oz • inch)

5 – 17.7 mN • m

(50 to 177 g • cm)

(0.7 – 2.48 oz • inch)

CQ-102AS

CQ-102C

CQ-201AS

CQ-201B

FWD

FWD

back tension

FF

REW

+
–

BD90 board

TP (RFI)
TP (VC)

oscilloscope 

(DC range) 

1. Connect oscilloscope to TP (RFI) and TP (VC) on the BD90

board.

2. Press the  POWER  button to turn the power ON, and press

the Z PUSH OPEN/CLOSE  button to open the CD disc tray.

3. Set disc (YEDS-18) on the tray and press the  u  (CD) button

to playback.

4. Confirm that oscilloscope waveform is as shown in the figure

below. (eye pattern)
A good eye pattern means that the diamond shape (

◊

) in the

center of the waveform can be clearly distinguished.

VOLT/DIV: 200 mV 
TIME/DIV: 500 ns

level:
1.2 

±

 0.3 Vp-p

TP

(VC)

TP

(RFI)

IC101

1.

CD Block is basically constructed to operate without adjustment.

2.

Use YEDS-18 disc (3-702-101-01) unless otherwise indicated.

3.

Use an oscilloscope with more than 10 M

Ω

 impedance.

4.

Clean the object lens by an applicator with neutral detergent when the

signal level is low than specified value with the following checks.

5.

Check the focus bias check when optical pick-up block is replaced.

24

Tape speed adjustment
control inside motor
(M971)

i 

jack (J391)

set

32 

Ω

test tape
WS-48A
(3 kHz, 0 dB)

digital frequency
counter

WS-48A

3 kHz, 0 dB

tape speed adjustment

Procedure:
Mode:  playback
Adjust so that the value on the digital frequency counter is
3,000 Hz.

2,940 to 3,060 Hz

Adjust so that the frequency at the beginning and that at the end of
tape winding are between 2,970 to 3,030 Hz.

Adjustment Location: Record/Playback/Erase Head

1. Mode:  Playback

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.

Screw
position

L-CH
peak

within
1dB

Output
level

L-CH
peak

R-CH
peak

within
1dB

Screw
position 

R-CH
peak

0 dB=0.775 V

set

i

 jack

(J391)

+
–

level meter 

test tape
P-4-A063
(6.3 kHz, 

−

10 dB)

1. Demagnetize the record/playback head with a head

demagnetizer.

2. Do not use a magnetized screwdriver for the adjustments.

•

P-4-A063

6.3 kHz, –10 dB

Azimuth Adjustment

set

test tape
P-4-A063
(6.3 kHz, 

−

10 dB)

oscilloscope

V

H

waveform of oscilloscope

in phase 45

°

90

°

135

°

180

°

good

wrong

i

 jack

(J391)