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5

The laser diode in the optical pick-up block may suffer electrostatic
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 emission,
observe from more than 30 cm away from the objective lens.

Boards requiring use of unleaded solder are printed with the lead-
free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with

the lead free mark due to their particular size)

Unleaded solder has the following characteristics.

• Unleaded solder melts at a temperature about 40 °C higher

than ordinary solder.
Ordinary soldering irons can be used but the iron tip has to be
applied to the solder joint for a slightly longer time.
Soldering irons using a temperature regulator should be set to
about 350 

°C.

Caution: The printed pattern (copper foil) may peel away if

the heated tip is applied for too long, so be careful!

• Strong viscosity

Unleaded solder is more viscou-s (sticky, less prone to flow)
than ordinary solder so use caution not to let solder bridges
occur such as on IC pins, etc.

• Usable with ordinary solder

It is best to use only unleaded solder but unleaded solder may
also be added to ordinary solder.

The disc tray lock function for the antitheft of an demonstration
disc in the store is equipped.

1. Press  

?/1

  button to turn the power on.

2. Press the [FUNCTION] button to select the “DVD”.
3. Press two buttons of  

x

(DVD) and

Z 

OPEN/CLOSE

simultaneously and hold down until “UNLOCKED” displayed
on the fluorescent indicator tube (around 5 seconds).

When “LOCKED” is displayed, the tray lock is not released by
turning power on/off with the  ?/1  button.

Singapore and Malaysia models

4-252-689-6

[]

Iranian model

4-252-689-7

[]

Australian model

4-252-689-8

[]

Mexican model

4-252-689-9

[]

When replacing the DMB07 board, since the adjustment value is
not set up correctly, “Drive Auto Adjustment” can’t be performed.
In this case, initialize memory in the following procedures.

1. Set the test mode. (See page 18)
2. Press the [2]  key on the remote commander, and set the

“DRIVE MANUAL OPERATION”. (See page 21)

3. Press the [6] key on the remote commander, and set the “2-6,

Memory Check”. (See page 23)

4. Press the [CLEAR] key on the remote commander, and initialize

Memory.

PART No.

6

1. Connect an oscilloscope to test point 1  pin and 3  pin of

CN901 on the DMB07 board.

2. Press the  ?/1  button to turn the power on.
3. Put the disc (LUV-P01) (Part No. 4-999-032-01) (CD)  in to

playback.

4. Confirm that oscilloscope waveform is clear and check RF

signal level is correrect or not.

5. Put the disc (TDV-520CSO) (Part No. J-2501-236-A) (DVD)

in to playback.

6. Perform Comfirmation in the same manner as step 4.

A clear RF signal waveform means that the shape “

◊” can be clearly

distinguished at the center of the waveform.

Checking Location:
– DMB07 BOARD (Component Side) –

2

Pull-out the disc tray.

1

Turn the gear (chuck) 
in the direction of 
arrow 

A

.

A

+
–

oscilloscope

DMB07 board

CN901 

1

 pin

CN901 

3

 pin

RF signal waveform

VOLT/DIV: 200 mV
TIME/DIV: 500 ns

CD: 1.05 

±

 0.2 Vp-p

DVD: 1.09 

±

 0.2 Vp-p

1

7

CN901

7

This section is extracted from
instruction manual.

•

ALBUM +/– rl
AMP MENU qk
CD SYNC w;
CLOCK/TIMER SELECT 2 
CLOCK/TIMER SET 5
Deck A ea
Deck B wh
DIRECTION eh
DISC 1 ~ 5 rh
DISC SKIP td
Disc tray es
DISPLAY 3
Display 6
DOLBY PL II tf
DVD MENU qj
DVD TOP MENU qg

ECHO LEVEL eg
EFFECT ON/OFF ej
ENTER qh
EX-CHANGE ts
FLASH rg
FM MODE 8
FUNCTION qs
GAME ws
GAME INPUT AUDIO L/R 

(jacks) wd

GAME INPUT VIDEO (jack) wd 
GAME MIXING wa

ILLUMINATION rs
IR (receptor) ra
JOG rk
MEMORY 9
MIC 1/MIC 2 (jacks) ed
MIC LEVEL ef
MODE t;
P FILE ek
PHONES (jack) wf
PLAY MODE rd
Power illuminator wl
Preset Effect buttons 7

SALSA/REGGAE/POP/
SAMBA/TANGO/ROCK/
JAZZ/DANCE/MOVIE/
GAME

REC PAUSE/START wg
REPEAT rf
SLEEP 4
SPEAKERS t;
SOUND FIELD  r;
TUNER/BAND q;
TUNER ENTER qd
TUNING –/+ qa
TUNING MODE qf
VOLUME +/– wk
X-GROOVE el
X-ROUND ON/OFF rj

?/1 (power) 1
A Z e;
Z B wj

V

/

v

/

B

/

b

 qh

DVD Function:
Z OPEN/CLOSE ta
NX (play/pause) rl
x (stop) rl
m/M (rewind/fast forward) 

rl

./> (go backward/go 

forward) rl

TAPE A function:
h/H (play) eh
x (stop) eh
.m/M> eh
TAPE B function:
h/H (play) ql
x (stop) ql
.m/M> ql

HS

s

wg

wh

wj

wk

e; wl

ea

qh

qf

qg

qj

qk

ql

w;
wa

wd

ws

wf

qd

rl

rk

rj

rh

rg

rf

rd

td

tf

ts

ta t;

rs

1

ra

r;

ek

el

ef

ed

es

eh

ej

2 3 456

7

89 q; qa qs

eg

8

ALBUM + 7
ALBUM – qa
ANGLE qk
AUDIO qk
BAND wg
CLEAR wl
CLOCK/TIMER SELECT e; 
CLOCK/TIMER SET e;
DISC SKIP wf
DISPLAY wa
DVD DISPLAY wh
DVD MENU 7
DVD SETUP ws
DVD TOP MENU qa
ENTER wj

FM MODE 5
FUNCTION +/– q;
KARAOKE/MPX qf
KEY CONTROL 

#

/

2

 9

Numeric buttons qd
PLAY MODE 4
REPEAT 5
SLEEP qh
SLOW / w;
SOUND FIELD +/– wd
SUBTITLE qk
TUNER MEMORY 3
TUNING MODE 4
TUNING +/– wk
TV CH +/– qg
TV/VIDEO ea
TV VOL +/– 2
TV ?/1 qj
VOLUME +/– 8

?/1 (power) 1
nN (play) 6
X (pause) 6
x (stop) 6
>10 qs
O RETURN ql
m (rewind) w;
M (fast forward) w;

V

/

v

/

B

/

b

 wj

. (go backward) wk
> (go forward) wk

O

b

B

V

v

+

+

–

–

+

–

+

–

+

–

+

–

+

–

+

–

X

bB

y

y

+

–

y

y

x

m

M

.

>

O

b

B

V

v

+

–

+

–

+

–

+

–

+

–

X

bB

x

m

M

.

>

ws

1

wk

qa

wd

2

qg

qh

qf

qs

qd

3

4

5

6

7

8

9

0

qj

qk

w;

wa

ql

e;

ea

wl

wf

wg

wh

wj

Press ?/1 to turn on the system.

Press CLOCK/TIMER SET.
“CLOCK” appears in the display. Then, the 
hour indication flashes in the display.

V

 or 

v

Press ENTER.
The minute indication flashes in the 
display.

V

 or 

v

Press ENTER.
The clock starts functioning.

Press CLOCK/TIMER SET.
“SET” appears in the display, then “PLAY 
SET?” flashes in the display.

Press 

V

 or

v

 repeatedly to select “CLOCK 

SET?”, then press ENTER.
The hour indication flashes in the display.

Do the same procedures as step 3 to 6 
above.

• The clock settings are canceled when you disconnect 

the power cord or if a power failure occurs.

• You  cannot set the clock in Power Saving Mode.