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3

................................................

4

Location of Controls .......................................................

5

Setting the Clock .............................................................

6

3-1. Disassembly Flow ...........................................................

7

3-2. Top Case ..........................................................................

8

3-3. Loading Panel ..................................................................

8

3-4. CD Mechanism Deck ......................................................

9

3-5. Front Panel Section .........................................................

9

3-6. Back Panel Section .......................................................... 10
3-7. MAIN Board ................................................................... 10
3-8. Base Unit (BU-30BD60C) .............................................. 11
3-9. DRIVER Board, MOTOR Board and

SENSOR (CD) Board ..................................................... 11

3-10. Tape Mechanism Deck (TCM-230AWR41CS) .............. 12
3-11. Belt .................................................................................. 12
3-12. SW Board, HEAD (A) Board and HEAD (B) Board ..... 13

.............................................................. 14

....................... 18

Deck section .................................................................... 18
CD Section ...................................................................... 21

7-1. Block Diagram  – CD SERVO Section – ....................... 23
7-2. Block Diagram  – TUNER/TAPE DECK Section – ...... 24
7-3. Block Diagram  – MAIN Section – ................................ 25
7-4. Block Diagram  – DISPLAY/KEY CONTROL/

POWER SUPPLY Section – ........................................... 26

7-5. Note for Printed Wiring Boards and

Schematic Diagrams ....................................................... 27

7-6. Printed Wiring Board  – BD Board – ............................. 28
7-7. Schematic Diagram  – BD Board – ................................ 29
7-8. Printed Wiring Boards

– DRIVER/MOTOR/SENSOR (CD) Boards – .............. 30

7-9. Schematic Diagram

– DRIVER/MOTOR/SENSOR (CD) Boards – .............. 30

7-10. Printed Wiring Boards

– SW/HEAD (A)/HEAD (B) Boards – .......................... 31

7-11. Schematic Diagram  – SW Board – ................................ 32
7-12. Printed Wiring Board  – MAIN Board – ........................ 33
7-13. Schematic Diagram  – MAIN Board (1/4) – .................. 34
7-14. Schematic Diagram  – MAIN Board (2/4) – .................. 35
7-15. Schematic Diagram

– MAIN (3/4)/HEAD (A)/HEAD (B) Boards – ............. 36

7-16. Schematic Diagram  – MAIN Board (4/4) – .................. 37
7-17. Printed Wiring Board  – GAME IN Board – .................. 38
7-18. Schematic Diagram  – GAME IN Board – ..................... 39
7-19. Printed Wiring Boards

– POWER/SENSOR Boards – ........................................ 40

7-20. Schematic Diagram  – POWER/SENSOR Boards – ..... 41
7-21. Printed Wiring Boards

– PANEL/CD OPEN/CD SWITCH Boards – ................ 42

7-22. Schematic Diagram

– PANEL/CD OPEN/CD SWITCH Boards – ................ 43

7-23. Printed Wiring Boards

– PAD SWITCH/VOL Boards – ..................................... 44

7-24. Schematic Diagram  – PAD SWITCH/VOL Boards – ... 45

7-25. Printed Wiring Boards

– MAIN TRANS/SUB-TRANS Boards – ...................... 46

7-26. Schematic Diagram

– MAIN TRANS/SUB-TRANS Boards – ...................... 47

7-27. IC Pin Function Description ........................................... 49

8-1. Panel Section ................................................................... 53
8-2. Front Panel Section ......................................................... 54
8-3. Chassis Section ............................................................... 55
8-4. CD Mechanism Deck Section ......................................... 56
8-5. Base Unit Section (BU-30BD60C) ................................. 57
8-6. Tape Mechanism Deck Section

(TCM-230AWR41CS) .................................................... 58

............................... 59

4

The laser diode in the optical pick-up block may suffer electro-
static break-down because of the potential difference generated
by the charged electrostatic load, etc. on clothing and the human
body.
During repair, pay attention to electrostatic break-down and also
use the procedure in the printed matter which is included in the
repair parts.
The flexible board is easily damaged and should be handled with
care.

The laser beam on this model is concentrated so as to be focused
on the disc reflective surface by the objective lens in the optical
pick-up block. Therefore, when checking the laser diode emis-
sion, observe from more than 30 cm away from the objective lens.

Carry out the “S curve check” in “CD section adjustment” and
check that the S curve waveforms is output three times.

MODEL

PART No.

E, Singapore, Chilean and Peruvian models

4-237-780-1

[]

Mexican and Argentina models

4-237-780-6

[]

US model

4-237-780-9

[]

PART No.

5

This section is extracted from
instruction manual.

CD eg
CD SYNC HI-DUB qf
DECK A A wh
DECK B A qh
DIMMER 9
DIRECTION q;
DISC 1~3 4
DISC SKIP EX-CHANGE 5
Disc tray 3
DISPLAY 7 

EDIT q;
EFFECT ON/OFF rs 
ENTER ra
FM MODE qs

GAME ea
GAME EQ rd
GAME INPUT wd
GAME MIXING wl
GROOVE rf 
IR (receptor) 2

MD (VIDEO) es
MIC wa 
MIC LEVEL w;
MOVIE EQ ek
MUSIC EQ eh
OPEN/CLOSE Z 6
P FILE r;
PHONES (jack) ql
PLAY MODE e;

REC PAUSE/START qg
REPEAT qs
SPECTRUM 8
SURROUND el
SURROUND SPEAKER MODE

wj

TAPE A/B ed
TUNER/BAND ef 
TUNER MEMORY e;
VOLUME qa

@/1 1
hH ws
x qd
X wk
> qj
. wg
M/+  qk
m/–  wf
v/V/b/B ej

1

2 3

4

5

6

7

8

9

0

K

L

M

N

O

qh

qj

qk

ql

w;

wa

ws

W

X

wg

wh

wj

wk

wl

e;

ea

es

eg

ed

ef

ej

eh

ek

el

ra r;

rd rs

rf

6

2

3

6

5

1

4

When you set the time for the first time,
proceed to step 5.

V

v

V

v

V

v

The clock starts functioning.

If you have made a mistake or want to change the
time, start over from step 2.

The clock settings are canceled when you disconnect
the power cord or if a power failure occurs.

D
E

R

S

T

U

V

A

B

C

Y

X
W

qh

qj

qa

qs

qd

qf

7

q;

qg

8

9

6

CD ql
CLEAR 7
CLOCK/TIMER SELECT 2
CLOCK/TIMER SET 3
D.SKIP 9
ENTER qd
EFFECT ON/OFF qf
GAME w;
MD (VIDEO) q;

PRESET – wd
PRESET + wf
PRESET EQ qj
P FILE qh
SURROUND SPEAKER MODE

qs

SURROUND qs
SLEEP 1
TAPE A/B qa
TUNER/BAND qk
TUNING – wa
TUNING + ws
VOL +/– 8

@/1 4
hH wg
X 5
x 6
. wd
> wf
m wa
M ws
v/V/b/B qg

1 ANTENNA terminal

2 CD DIGITAL OUT OPTICAL terminal

3 MD/VIDEO (AUDIO) IN jack

4 VIDEO OUT jack

5 FRONT/SURROUND SPEAKER terminal

6 VOLTAGE SELECTOR switch

(E and Singapore models)