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From (2)

PLAY TEST

30000001  00000000

PLAY TEST

DD000303 ********

(SPIN)

(00000000 00000000)

"3" Key input

"Open/Close" Key input

Because a tray opens, a disk is published.

It becomes following playback state. 
(******** is a sector ID.)

A test jump can be done by inputting the following key 

from the remote controller.

The offset adjustment of the spindle is done automatically.

TRACK

000000** 000000++

ADJUST COMPLETE

00**00** 000000**

"Retern" key input

"Rapid return" key

"Return" key

Following playback, jump test mode

FOCUS

000000** 000000**

FOCUS

000000** 000000++

"Menu" Key input

Offset adjustment mode

1

-1

3

1

4

-102

6

102

7

-510

9

510

C

-511

M

511

2

-765

Repeat

765

5

-766

A-B

766

8

-7000

Program

7000

Before skipping.

-15000

After skipping.

15000

Next replay          Layer Jump

Key

Jump

Key

Jump

Connect the L side of the voltmeter to the IC702 (pin 18) and 
its H side to the IC702 (pin 17).
Adjust the output voltage to a range of -30mV to +10mV with 
the cross key "

↑

" or "

↓

".

With the cross joint key "

←

", 

→

, 5 step change

FOCUS offset adjustment mode

Connect the L side of the voltmeter to the IC702 (pin 16) and 
its H side to the IC702 (pin 15).
Adjust the output voltage to a range of -30mV to +10mV with 
the cross key "

↑

" or "

↓

".

With the cross joint key "

←

", 

→

, 5 step change

TRACK offset adjustment mode

For the section of **, the adjustment results are displayed.
The indication contents mean the "focus offset adjustment value", 
"track offset adjustment value" and "spindle offset adjustment value" 
from the left.
Cut a power source when you finish adjustment. 
Push a "Rapid return" key when it is adjusted again.
When a "return" key is pushed, it is returned in the beginning of 
servo adjustment mode.

End of adjustment

After it confirms that a spindle motor stops, "RETURN"key input

The part of ++ is changed 
at every key input.

The part of ++ is changed 
at every key input.

1. A DVD itself and a personal computer are articulated as the right figure. Software for the renewal is started more.
2. A power source is put with pushing a DVD's own playback key and a halt key at the same time. (It keeps pushing it for about three

seconds.)

3. When "a lateral" is inputted in accordance with the personal computer display and data transfer indication is shown and renewal

process is started normally when an ENTER key is pushed.

4. When renewal is completed normally.

5. "STOP" key is surely pushed if renewal is completed and the display

of above NO.4 is confirmed.It is made to turn off POWER after that.

R : OK

It is displayed.

W : STR

It is displayed.

W : END

It is displayed.

Personal computer

(DOS)

DVD itself

DIGITAL It is articulated to the 
OUT terminal connection child.

Fixture for the ROM renewal

Is the fuse normal?

See FLOW CHART No.3 <The fuse blows out.>

Is normal state restored when once unplugged 

power cord is plugged again after several

seconds?

Replace the fuse.

Is the AT 5V line voltage normal?

Check for leak or short-circuiting of primary

circuit component?

(Q9007, Q9010, D9016, T9001, D9013, C9021-2,

etc.)

Is the voltage of AT 12V, AT -30V and filament 

voltage normal?

Check each rectifying circuit of secondary circuit.

No

Does the change from STANDBY LED indicate 

turn-off?

Is the supply voltage of 5V fed to pins(15) and (16)

of IC8201?

Check the AT 5V line.

Yes

Is the supply voltage about 5V fed to pin(3) of

IC8201?

Check the IC8202.

Is there 4.0MHz oscillation at pins(1) and (2) of

IC8201?

Check the FL8201 and IC8201.

Does the "L" signal inputted at pin(14) of IC8201,

when the POWER button activated on the DVD?

Check the S8101 and POWER KEY line.

The STANDBY LED indicate it flashing after 0.5sec.

Does the remote control "L" signal inputted at

pin(4) of IC8201, when the POWER button

activated on the remote control unit?

Check the line between the remote control

receiver and the pin(4) of IC8201.

Replace IC8201.

Are the "P–CON(L)" pulse outputted from the

pin(7) of IC8201?

Replace IC8201.

Does the P–CON switch circuit is operate normally?

(Q9020-1, Q9023, Q9025-7, IC9003-4, D9030, 

D9042-3, D9046)

Check each component and if poor the replace.

Is there leaking or short-circuited primary 

component?

Check for short-circuiting of rectifying diode and 

circuit in each rectifying circuit of secondary side.

Replace IC8201.

Are the "H" pulse inputted into the pin(9) of IC8201?

Check or replace D9035-9, D9044-5.

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes (below, confirmed operating at LED turn-off of 0.5sec interval.)

No

No

Yes

The power cannot be turned on.(1)

No

No

No

No

No

No

No

No

No

No

No

The power cannot be turned on.(2)

The fuse blows out.

Is the supply voltage of 5V fed to pin(14) and pin

(38) of IC5001?

Check the PC 5V line.

Is the supply voltage of -19V fed to pin(27) of

IC5001?

Check the PC -19V line and Q9025.

Check R5014-5, IC5001 and their periphery.

Is there 500kHz oscillation at pin(44) of IC5001?

Check the signal lines of FIP DA, FIP CK, FIP CS 

of IC5001 and IC504.

Check or replace IC5001 and IC504.

No

Is key switch contact and installation state normal?

Replace key switch.

Is the control voltage normally into the pins(95)

and (96) of IC504?

Check the power circuit, D5004 and Q9026.

Check that the fluorescent display tube is free from 

damages such as crack.

Are the filament voltage applied between (1), (2)

and (31), (32) of the fluorescent display tube?

Also negative voltage applied between these pins 

and GND.

Check the fluorescent display tube and its periphery?

Does the secondary side photocoupler circuit 

operate normally?

Check the circuit and replace the parts.

(D9020, D9041, D9046, Q9028, etc.)

Does the primary side photocoupler circuit 

operate normally?

Check the circuit and replace the parts.

(D9020, D9023, D9040, etc.)

Check for short-circuiting of rectifying diode and circuit in each rectifying circuit of secondary side.

(D9005-8, D9025, IC9001-4, Q9020-1, Q9023, Q9025-7, etc.)

Replace D9020.

No

No

No

No

No

No

No

No

When the output voltage fluctuates.

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

When buzz is heard from the vicinity of power circuit.

The fluorescent display tube does not light.

The key operation is disabled.

KEY-1/2

3.3V

2.5V

1.8V

0.9V

0V

KEY–2

KEY–1

OFF

S8104

STILL/PAUSE

S8103

STOP

S8105

PLAY

Operation is possible from the DVD, but no 

operation is possible from the infrared remote

control.

Replace the remote control receiver or replace the

remote control transmitter is necessary.

Is 5V voltage supplied to the pin(3) terminal of

remote control receiver?

Check AT 5V line.

Is the "L" pulse sent out pin(1) terminal of receiver 

when the infrared remote control is activated?

Replace the remote control receiver.

Is pulse signal supplied to the pin(4) of IC8201?

(Although SERCH(-), SERCH(+), PLAY, STILL/

PAUSE and STOP button is possible, does not

function at POWER and OPEN/CLOSE button.)

Check the line between the remote control receiver 

and the pin(4) of IC8201.

Replace IC8201.

Is 12V voltage supplied at pin(1) of IC9001?

Check the secondary circuit, AT 12V and PC 12V 

switch(Q9027) 

circuit.

Is voltage of 9V sent out from the pin(2) of IC9001?

Check for load circuit short-circuiting or leak.

Check the IC9001 periphery circuit.

Does the P-CON switch circuit is operate ally?

(Q9020-1, Q9027, D9042, D9034, D9046, etc.)

Are the "H" pulse inputted into the pin(9) of

IC8201?

Replace IC8201.

Replace IC9002.

Check each component and if poor the replace.

Check or replace D9035-9, D9044-5.

Is 12V voltage supplied at pin(1) of IC9002?

Check the PC 12V line.

Is voltage of 8V sent out from the pin(2) of IC9002?

Check for load circuit short-circuiting or leak.

Check the IC9002 periphery circuit.

Is pulse signal supplied to the pin(32) of IC504?

(Although POWER and OPEN/CLOSE button is

possible, does not function at SERCH(-), SERCH

(+), PLAY, STILL/PAUSE and STOP button.)

Check the line between the remote control receiver 

and the pin(32) of IC504.

Replace IC504.

No

No

No

No

Yes

No

No

No

No

No

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

No

No

No operation is possible from the infrared remote control.

PC 9V is not output.

PC 8V is not output.(PC 9V is possible)

Is -19V voltage supplied at emitter of Q9025?

Check the AT -19V line.

Is voltage of -19V sent out from the collector of 

Q9025?

Check for load circuit short-circuiting or leak.

Check each component and if poor the replace.

Does the P-CON switch circuit is operate normally?

(Q9020, D9046, etc.)

Check the Q9025 periphery circuit.

Check the secondary circuit, AT 5V line.

Check for load circuit short-circuiting or leak.

Check each component and if poor the replace.

Is 5V voltage supplied at emitter of Q9023?

Check the AT 5V line.

Is voltage of 5V sent out from the collector of 

Q9023?

Check for load circuit short-circuiting or leak.

Check the Q9023 periphery circuit.

Does the P-CON switch circuit is operate normally?

(Q9020-1, D9042, D9032, D9046, etc.)

Are the 

"H" pulse inputted into the pin(9) of 

IC8201?

Replace IC8201.

Check each component and if poor the replace.

Check or replace D9035-9, D9044-5.

Are the 

"H" pulse inputted into the pin(9) of 

IC8201?

Replace IC8201.

Is 5V voltage supplied at pin(1) of IC9003?

Is voltage of 3.3V sent out from the pin(2) of 

IC9003? 

Check the IC9003 periphery circuit.

Does the P-CON switch circuit is operate normally?

(Q9020-1, D9030-1, D9042, D9046, etc.)

Check or replace D9035-9, D9044-5.

Are the 

"H" pulse inputted into the pin(9) of 

IC8201?

Replace IC8201.

Check or replace D9035-9, D9044-5.

No

No

No

No

No

No

No

No

No

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

No

No

No

Yes

Yes

Yes

PC 5V is not output.

PC -19V is not output.

PC 3.3V(1), (2) is not output.

Is the signal from the pins(70) and (69) of IC504

input into the pins(1) and (28) of IC702?

Is the loading motor drive voltage applied to the 

terminal of loading motor?

Replace IC702.

Check PC 8V line.

Check the LD-RVS/FWD signal line between IC702 

and the IC504.

Is loading motor drive voltage output from the 

pins(9) and (10) of IC702?

Check for mechanism and gear engagement and breakage.

Is 8V  voltage applied to the pin(8) of IC702?

Check the line between the IC702 and the 

loading motor.

Does the optical pickup move up and down after 

the disc is removed?(Checking of symptom.)

Is FE signal output to the pin(21) of IC302 when 

the disc is set?

No

See FLOW CHART NO.18<The [No Disc] indication.

(In case focus servo does not function.)>

Is there input signal on the pins(50,55) and (49,54) 

of IC302?

Check the connection of optical pickup cable.

If it is normal, replace the optical pickup.

Replace IC302.

Is FE signal inputted into the pin(8) of IC401.

Check or replace IC401.

Check the line between the IC302 and IC401.

See FLOW CHART NO.16<The disc tray cannot be opened and closed.>

Are the "L" pulse outputted from the pin(10) of

IC8201?

Are the "L" pulse inputted into the pin(11) of

IC8201?

Replace IC8201.

Check the S8102 and OPEN/CLOSE KEY line.

Check the line between the pin(106) of IC504 and the 

pin(11) of IC8201. (Check the TRAY ACK line and Q8202.)

Dose the "L" pulse inputted into the pin(13) of 

IC8201, when the OPEN/CLOSE button is 

activated on the DVD? 

Is 5V voltage supplied at pin(1) of IC9004?

Check the secondary circuit, AT 5V line.

Is voltage of 2.5V sent out from the pin(2) of

IC9004?

Check for load circuit short-circuiting or leak.

Check the IC9004 periphery circuit.

Replace IC9004.

No

No

No

No

No

No

No

No

No

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

No

Yes

Yes

Yes

No

No

PC 2.5V is not output.(PC 3.3V(1), (2) is possib

le

The disc tr

a

y

 cannot be opened and closed.

(F

or remote control is possib

le

.)

The disc tr

a

y

 cannot be opened and closed.

The [No Disc] indication.

 (In case of f

ocus error)

Is the focus control signal output to the pin(14) of

IC401?

Check the IC401 DAC power source periphery 

circuit. If it is normal, replace IC401.

Check the focus control signal (DA0) line between 

the IC702 and IC401.

Is 8V voltage applied to the pin(8) of IC702?

Check the line between the IC702 and the focus

actuator.

Check PC 8V line.

Is the focus control signal from the pin(14) of IC401

input into the pin(23) of IC702?

Is the focus control drive voltage output from the 

pins (17) and (18) of IC702?

Check the connection of optical pickup cable.

If it is normal, replace the optical pickup.

Is the focus control drive voltage applied to the

terminal of focus actuator?

Replace IC702.

Is the Q301(LD POWER ON) drive signal

(VOSCON) output to the pin(150) of IC401?

Is the Q307(LD POWER CTL) drive output to the

pin(45) of IC302? (Checking of symptom.)

Is 5V voltage applied to the emitter of Q301 and

Q307?

Check the line between the pin(150) of IC401 and 

the base of Q301 through Q304.

Check the line between the pin(45) of IC302 and 

the base of Q307.

Check the A_5V line.

Are the 5V and 2.3V voltage supplied to the pins

(11) and (9) of pickup terminal.

Check the line between the Q301, Q307 and 

pickup terminal.

Check the connection of optical pickup cable.

If it is normal, replace the optical pickup.

Is it possible to hold normally the disc with the

check?

Set the disc on the disc tray.

Replace the main PWB unit.

Check the video amplifier unit and the audio amplifier unit.(Q209, Q210, Q211, IC6001)

Check the loading switch.

Check for contamination of objective lens of 

optical pickup.

Replace the optical pickup unit.

Is the level of RF signal which is output from

pin(28) of IC302, normal?

No

No

No

No

No

No

No

No

No

No

No

Yes

Yes

Yes

Yes

No

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

The [No Disc] indication.

 (In case f

ocus ser

v

o

 does

not function.)

The [No Disc] indication.

 (When the laser beam 

does not light.)

Both picture and sound do not oper

ate nor

mally

.