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17

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

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

Procedure:
1. Press the ?/1 button to turn the set ON.
2. Press three buttons x  (TAPE A), x  (CD), and Z  (CD1)

simultaneously.

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

“LOCK” is displayed on the liquid crystal display, and the CD
ship mode is set.

• This mode is used to check the software version, liquid crystal

display and keyboard.

Procedure:
1. Press three buttons  x (TAPE A),   x  (CD) and  ?/1  simul-

taneously.

2. Segments of the liquid crystal display are all turned on.
3. When you want to enter the software version display mode,

press the  CD 1  button .  The model number and destination are
displayed.

4. Each time the CD 1 button is pressed, the display changes

starting from MC version, GC version, CD version, CDD
version, CDMA version, CDMB version, BDA version, BDB
version , ST version, TA version, TM version, TC version and
MD version in this order.

5. Press the  CD 2  button, and the key check mode is activated.
6. In the key check mode, “K 

0  J 0  V 0” is displayed.  Each time

a button is pressed, “K 0” value increases. However, once a
button is pressed, it is no longer taken into account.
“V  0” value increases like 1, 2, 3 ... if rotating the  VOLUME
knob clockwise, or it decreases like 0, 9, 8 ... if rotating
counterclockwise.
“J0” value increases if rotating the  FUNCTION  ,  BASS  or
TREBLE  knob clockwise, or it decreases if rotating
counterclockwise.

7. To exit from this mode, press three buttons in the same manner

as step 1, or disconnect the power cord.

• Set the CD ship mode and set the default setup when shipped

from the factory at the next AC power on.

Procedure:
1. Press the  ?/1  button to turn the set ON.
2. Select the function  “CD ”.
3. Press three buttons x  (TAPE A), x  (CD), and Z  (CD1)

simultaneously.

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

“LOCK” is displayed on the liquid crystal display, and the CD
ship mode is set.

18

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.

0 dB=0.775 V

Confirm each contents of this section first of all. If the results are
not satisfied, do the adjustment.

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

Procedure:
1.

Mode:  Playback

set

MAIN board
SPEAKER terminals (SJ301)
L-CH, R-CH

+
–

level meter

test tape
P-4-A63J
(10 kHz, –10 dB)

Screw
position

L-CH
peak

within
1 dB

Output
level

L-CH
peak

R-CH
peak

within
1 dB

Screw
position

R-CH
peak

set

test tape
P-4-A63J
(10 kHz, –10 dB)

R-CH

oscilloscope

L-CH

R-CH

V

H

waveform of oscilloscope

in phase 45

°

90

°

135

°

180

°

good

wrong

MAIN board
SPEAKER terminals (SJ301)
L-CH

Tape

Signal

Used for

P-4-A63J

10 kHz, –10 dB

Azimuth Adjustment

3.

Mode: Playback

4.

Repeat step 1 to 3 in playback (REV) mode.

5.

After the adjustments, apply suitable locking compound to the
pats adjusted.

19

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 block is replaced.

Procedure :
1.

Connect oscilloscope to TP (RF) and TP (VC) on the CD board.

2.

Press the

?/1

button to turn the power on, and press the

Z

(CD) button to open the CD disc tray.

3.

Put disc (YEDS-18) in and press the

u

(CD) button to play-

back.

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.

+
–

BD board

TP (RF)
TP (VC)

oscilloscope

(DC range)

VOLT/DIV: 200 mV
TIME/DIV: 500 ns

level:
1.2 

±

 0.1 Vp-p

s

16

15

2

1

15

16

30

1

40

41

60 61

80

1

21 20

IC101

IC103

CN102

TP(RF)

TP(VC)

20

Note on Printed Wiring Boards:
•

X

: parts extracted from the component side.

•

Y

: parts extracted from the conductor side.

•

W

: indicates side identified with part number.

•

: Pattern from the side which enables seeing.

• Indication of transistor.

Note on Schematic Diagram:
• All capacitors are in µF unless otherwise noted.  pF: µµF

50 WV or less are not indicated except for electrolytics
and tantalums.

• All resistors are in 

Ω

 and 

1

/

4

 

W or less unless otherwise

specified.

•

f

: internal component.

•

C

: panel designation.

•

A

: B+ Line.

•

B

: B– Line.

•

H

: adjustment for repair.

• Voltages are taken with a VOM (Input impedance 10 M

Ω

).

Voltage variations may be noted due to normal produc-
tion tolerances.

• Waveforms are taken with a oscilloscope.

Voltage variations may be noted due to normal produc-
tion tolerances.

• Circled numbers refer to waveforms.

• Signal path.

F

: FM

E

: PB (DECK A)

d

: PB (DECK B)

G

: REC (DECK B)

J

: CD

c

: DIGITAL OUT

f

: MD

• Abbreviation

CND : Canadian model
E51

: Chilean and peruvian model

C

B

These are omitted.

E

Q

B

These are omitted.

C

E

Q

B

These are omitted.

C

E

Q

Caution:
Pattern face side:

Parts on the pattern face side seen from

(Side A)

the pattern face are indicated.

Parts face side:

Parts on the parts face side seen from

(Side B)

the parts face are indicated.

Note:
The components identified by
mark 

0

 or dotted line with mark

0

 are critical for safety.

Replace only with part number
specified.

Note:
Les composants identifiés par
une marque 

0

  sont critiques

pour la sécurité.
Ne les remplacer que par une
pièce portant le numéro spécifié.