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1.  Standby mode (power off).

2.  Press  Display  

 Channel  5  

 Sound Volume  +  

 Power 

on the Remote Commander (press each button within a second).

1.  The CRT displays the time being adjusted.

Mode

Display

Item

Item

Data

SERVICE

HSIZ

0

2.  Press  1  or  4  on the Remote Commander to select the time.

3.  Press  3  or  6  on the Remote Commander to change the data.

4.  Press  MUTING  then  ENTER  to save into the memory.

Turn the set off then on to exit Service Adjustment Mode.

Mode

WRITE

ENTER

Green

Red

MUTING

SERVICE

1.  Input an entire white signal.

2.  Set to Service Adjustment Mode.

3.  Set DCOL to “0”.

4.  Set the PICTURE and BRIGHTNESS to minimum.

5.  Adjust with SBRT if necessary.

6.  Select GCUT and BCUT with  1  and  4  .

7.  Adjust with  3  and  6  for the best white balance.

8.  Set the PICTURE and BRIGHTNESS to maximum.

9.  Select GDRV and BDRV with  1  and   4 .

10. Adjust with  3  and  6  for the best white balance.

11. Reset DCOL to “1”.

12. To write into memory, press  MUTING  then  ENTER .

If the setting indicated in Step 2 of Hold-Down Operation Confi rmation 
cannot be met, readjustment should be performed by altering the 
resistance value of R582 component marked with X. 

+

IABL

ABL

T504

FBT

range

-

ampmeter

3.0 mA  DC

A

Note: The following adjustments should always be performed when 
replacing the following components, which are marked with Y on the 
schematic diagram on the A Board:

 

 A BOARD:  IC001,IC602, R030, R625, R626, 
R632, R633, R635, R636, R637, R638, R639

 

1.  Supply 130 +2.0 / -0.0V to the set with a variable auto transformer.

2.  Input a dot signal.

3.  Set the PICTURE  and the BRIGHTNESS controls to minimum.

4.  Set to Service Adjustment Mode.

5.  Select PADJ with  1  and  4  .

6.  Adjust with  6  to the 0 level.

7.  Confi rm the voltage of A Board TP-600 is <125 VDC.

8.  If step 7 is not satisfi ed, replace the components listed above, then 

repeat the above steps.

9.  Supply 130 +2.0 / -0.0V to the set with a variable auto transformer.

10. Adjust with  3  and  6  for 117.0 ± 0.3 VDC.

11. Press  MUTING  then  ENTER  to save into the memory.   

3-1. X R582 CONFIRMATION METHOD  
(HOLD-DOWN CONFIRMATION) AND 
READJUSTMENTS

The following adjustments should always be performed when replacing 
the following components which are marked with Y on the schematic 
diagram:

Part Replaced (   )

Adjustment (   )

DY, C511, C574, C575, D572, 
D573, D574, R582, R583, R584, 
R585, R586, R578, R625, R626, 
R640, R635,T504, IC301, IC521, 
IC602.............................A Board

HV HOLD-DOWN
R582

1.  Turn the POWER switch ON.  Input a white signal and set the 

PICTURE and BRIGHTNESS controls to maximum.

2.  Confi rm that the voltage between C574 (+) and ground is more than 

99.8 VDC when set is operating normally with 120 +/- 2 VAC. 

1.  Connect the current meter between Pin 11 of the FBT (T504) and 

the PWB land where Pin 11 would normally attach (See Figure 1 on 
the next page).

2.  Input a dot signal and set PICTURE and BRIGHTNESS to minimum: 

IABL = 95 + 100/-95µA.

3.  Confi rm the voltage of A Board TP-600 is 117 ± 0.3 VDC.

4.  Connect the digital voltmeter and the DC power supply via Diode 

1SS119 to C574 (+) and ground (See Figure 1 on next page).

5.  Increase the DC power voltage gradually until the picture blanks out.

6.  Turn DC power source off immediately.

7.  Read the digital voltmeter indication (standard: less than or equal to 

127.3 VDC).

8.  Input a white signal and set PICTURE and BRIGHTNESS to 

maximum: (standard: less than or equal to 127.3 VDC).

9.  Repeat steps 4 to 7.

CN501

C573

IC521

J200

J203

D502

R311

D541

D572

R545

R543

R552

C562

C564

R504

IC541

R542

T504

CN502

R549

D300

R576

D581

R553

D520

C574

D206

C325

C542

D574

L5

03

R578

R544

C511

R533

R534

R532

R535

R283

R280

R216

R585

R583

L504

D551

R551

L591

R571

C591

R505

T5

C504

C508

R591

C571

R572

R574

Q571

Q501

C580

CN5

C520

   

H   D Y   +

H   D Y   +

H   D Y   -

H   D Y   -

V   D Y   -

V   D Y   +

1

2

3

4

5

6

7

8

9

1 0

1 1

1

2

6

7

B

C

1

6

TP508
V OUT

TP507
V MID

ABL

+13V

HEATER

-13V

200V

TP600

B+

TP505

900V

TP504

180V

TP506
H OUT

TP502

+13V

TP501

-13V

TP403
L OUT

R OUT

TP404

3

4

B

E

E

X R582

1.  Standby mode (Power off).

2.  Press the following buttons on the remote commander within a 

second of each other: 

 

Display  

 Channel  5  

 Sound Volumne  +  

 Power

1.  The CRT displays the item being adjusted.

Mode

Display

Item

Item

Data

SERVICE

HSIZ

0

2.  Press  1  or  4  on the Remote Commander to select the item.

3.  Press  3  or  6  on the Remote Commander to change the data.

4.  Press  MUTING  then  ENTER  to write into memory.

Mode

WRITE

ENTER

Green

Red

MUTING

SERVICE

1.  Press  8  then  ENTER  on the Remote Commander to initialize.

Mode

Carry out Step 1 when adjusting
IDs 0-7 and when replacing and 
adjusting IC003

SERVICE

RESET

2.  Turn set off then on to exit service adjustment mode.

1.  After adjustment, pull out the plug from the AC outlet, then replace 

the plug in the AC outlet again.

2.  Turn the power switch ON and set to Service Mode.

3.  Call the adjusted items again to confi rm they were adjusted.

Use the Remote Commander

 

(RM-Y155) to perform the circuit adjustments in this section.

Test Equipment Required:   1. Pattern generator   2. Frequency counter   3. Digital multimeter  4.  Audio oscillator

MUTING

DISPLAY

1

2

3

4

5

6

8

0

VOLUME (+)

POWER

ENTER

(Enter into 
memory)

(Service Mode)

Disp. (Item up)

(Device Item Up)

Disp. (Item down)

(Initialize)

(Service Mode)

Item (Data up)

Item (Data down)

(Device item down)

(Enter into 
memory)

(Remove from 
memory)

(Service Mode)