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Perform this adjustment after performing H. Frequency
(Free Run) Check.

1. Input a crosshatch signal.

2. Activate the Service Adjustment Mode.

3. Select the HPOS item with 

 and 

 .

4. Adjust the value of HPOS with 

 and 

 for the best

horizontal center.5.

Press 

 then 

to save into the memory.

 

1. Input a monoscope signal.

2. Activate the Service Adjustment Mode.

3. Select HSIZ with 

 and 

 .

4. Adjust with 

 and 

 for the best horizontal size.

5. Press 

 then 

 to save into the memory.

1. Input a crosshatch signal.

2. Activate the Service Adjustment Mode.

3. Select VLIN, VSCO, PAMP, and PPHA with with 

 and 

.

4. Adjust with 

 and 

 for the best horizontal size.

5. Press 

 then 

 to save into the memory.

V LINEARITY (VLIN)

V CORRECTION (VSCO)

PIN AMP (PAMP)

HORIZONTAL TRAPEZOID (TRAP)

9. Select the DCOL item and reset to 1.

10. Press 

 then 

 to save into the memory.

1. Input a crosshatch signal.

2. Activate the Service Adjustment Mode.

3. Select the VSIZ item with 

 and 

 .

4. Adjust value of VPOS with 

 and 

 for the best vertical

center.

5. Press 

 then 

 to save into the memory.

 

Perform this adjustment after performing H. Frequency
(Free Run) Check.

1. Input a crosshatch signal.

2. Activate the Service Adjustment Mode.

3. Select the VPOS item with 

 and 

 .

4. Adjust value of VPOS with 

 and 

 for the best vertical

center.

5. Press 

 then 

 to save into the memory.

 

1. Input a crosshatch signal.

2. Activate the Service Adjustment Mode.

3. Select VANG, VBOW, UPIN, and LPIN with 

and 

.

4. Adjust with 

 and 

 for the best picture.

5. Press 

 then 

 to save into the

memory.

V ANGLE (VANG)

V BOW (VBOW)

UPPER PIN (UPIN)

LOW PIN (LPIN)

1. Change the value of the DCOL item to “1”.

2. After completing all adjustments, press 

 then

 .

Read From Memory

Green

Red

• All capacitors are in 

µ

F unless otherwise noted.

pF:

 µµ

F 50 WV or less are not indicated except for

electrolytic and tantalums.

• All electrolytics are 50V unless otherwise specified.

• Indication of resistance, which does not have one for

rating electrical power, is as follows:

Pitch: 5mm

Rating electrical power 1/4W (CHIP: 1/10W)

• All resistors are in ohms.

K

Ω

  = 1000

Ω

      M

Ω

  = 1000K

Ω

•

: nonflammable resistor

•

: fusible resistor

•

: internal component

•

: panel designation and adjustment for repair

•

: earth-ground

•

: earth-chassis

• All variable and adjustable resistors have characteristic

curve B, unless otherwise noted.

• The components identified by 

 in this manual have

been carefully factory-selected for each set in order to
satisfy regulations regarding X-ray radiation. Should
replacement
be required, replace only with the value originally used.

• When replacing components identified by 

, make the

necessary adjustments indicated. If results do not meet
the specified value, change the component identified
by 

 and repeat the adjustment until the specified value

is achieved (refer to Safety Related Adjustments on
page 19).

• When replacing parts shown in the table below, be sure

to perform the related adjustments.

A Board

CB Board

K Board
(KV20FV12/21FV12/C MODELS ONLY)

MB Board

VB Board

Part Replaced (     )

Adjustment (     )

HV HOLD-DOWN
(R562)

B+ VOLTAGE
CONFIRMATION

DY, T505, CRT, IC1301, IC501, C507,
C520, C505, C509, C515, T504,
L508, C551, L510, C546, C537, 
C547, D517, D518, D519, R560,
R561, R562, R563, R565, R566, 
R567, R525........................A Board

IC601, PH601...................A Board

 • All voltages are in Volts

• Voltage is DC with respect to ground unless otherwise

noted.

• Readings are taken with a 10M

Ω

 digital multimeter.

• Readings are taken with a color-bar signal input.
• Voltage variations may be noted due to normal

production tolerance.

• Circled numbers are waveform references.
• *

: cannot be measured

•

: B + Line

•

: B 

−

 Line

•

: Signal path

RESISTOR

:

RN

METAL FILM

:

RC

SOLID

:

FPRD

NON FLAMMABLE CARBON

:

FUSE

NON FLAMMABLE FUSIBLE

:

RW

NON FLAMMABLE WIREWOUND

:

RS

NON FLAMMABLE METAL OXIDE

:

RB

NON FLAMMABLE CEMENT

:

ADJUSTMENT RESISTOR

COIL

:

LF-8L

MICRO INDUCTOR

CAPACITOR

:

TA

TANTALUM

:

PS

STYROL

:

PP

POLYPROPYLENE

:

PT

MYLAR

:

MPS

METALIZED POLYESTER

:

MPP

METALIZED POLYPROPYLENE

:

ALB

BIPOLAR

:

ALT

HIGH TEMPERATURE

:

ALR

HIGH RIPPLE

HZ Board

(KV-21FE12A

MODEL

ONLY)

879 Block Diagram.p65

2/4/00, 3:01 PM

1

C207 G-4 4.7µF # 4.7µF JW 5.0 MM 4.7µF JW 5.0 MM

C208 G-4 4.7µF 4.7µF 4.7µF JW 5.0 MM 4.7µF JW 5.0 MM

C210 D-6 4.7µF 4.7µF # 4.7µF 4.7µF 4.7µF

C215 C-6 1µF   16V 1µF   16V # 1µF   16V 1µF   16V 1µF   16V

C401 C-19 # # # # # 100µF

C421 D-17 0.22µF   25V 0.22µF   25V # 0.22µF   25V 0.22µF   25V 0.22µF   25V

C435 C-18 # # # # # 0.22µF   25V

C440 E-16 4.7µF 4.7µF 4.7µF # 4.7µF #

C443 D-3 0.001µF 0.001µF 0.001µF # 0.001µF #

C444 H-18 0.01µF 0.01µF 0.01µF # 0.01µF #

C445 E-3 0.001µF 0.001µF 0.001µF # 0.001µF #

C446 H-19 0.01µF 0.01µF # # 0.01µF #

C450 B-13 # # # 0.47µF   16V # .47µF   16V

C607 H-8 0.47µF  125V    0.47µF  300V    0.47µF   300V    0.47µF  125V    0.47µF  300V 0.47µF  300V

C612 H-11 470µF   250V 330µF   400V 330µF   400 V 470µF   250 V 330µF   400V 330µF   400V

C625 H-16 15000µF   25V 1000µF   25V 1000µF   25V 1000µF   25V 1000µF   25V 1000µF   25V

C630 H-15 .0047µF   250V # # .0047µF  250V # #

C631 H-15 .0047µF   250V # # .0047µF  250V # #

C648 G-6 0.22 µF   125V    0.22µF   300V    0.22µF    300V    0.22µF    125V    0.22µF    300V 0.22µF    300V

C655 H-6 0.47µF   125V 0.47µF   300V    0.47µF    300V   0.47µF    125V 0.47µF    300V 0.47µF    300V

C658 H-16 1000µF   25V 1000µF   25V 1000µF   25V 1000µF   25V 1000µF   25V 15000µF   25V

CN403 C-21 1-564-505-11 1-564-505-11 1-564-505-11 # 1-564-505-11 #

CN404 C-21 1-564-505-11 1-564-505-11 1-564-505-11 # 1-564-505-11 #

CN460 A-15 # # # 1-573-298-21 # 1-573-298-21

D230 B-13 # # # RD9.1EW-T1 # RD9.1EW-T1

D231 B-14 # # # RD9.1EW-T1 # RD9.1EW-T1

D403 E-16 MA111-TX MA111-TX MA111-TX # MA111-TX #

D2001 K-6 LNK0120022G LNK0120022G LNK0120022G LNK0120022G1 LNK022022G2 LNK01220022G1

F601 I-6 6.3A/125V 6.3A/250V 6.3A/250V 6.3A/125V 6.3A/250V 6.3A/250V

IC401 C-18 TDA7075AQ/N2 TDA7075AQ/N2 TDA7075AQ/N2 TDA7075AQ/N2 TDA7075AQ/N2 #

IC402 A-19 # # # # # TDA8580Q/N1

IC405 H-17 NJM2521M-TE1 NJM2521M-TE1 NJM2521M-TE1 # NJM2521M-TE1 #

IC406 H-18 NJM2521M-TE1 NJM2521M-TE1 # # NJM2521M-TE1 #

IC601 F-12 STR-F6624 STR-F6654 STR-F6654 STR-F6624 STR-F6654 STR-F6654

J201 G-4 1-794-118-11 1-794-118-11 1-794-115-11 1-794-119-11 1-794-118-11 1-794-119-11

J202 C-7 1-794-267-11 1-794-267-11 1-794-266-21 1-794-267-11 1-794-267-11 1-794-267-11

J205 A-14 # # # 1-794-116-11 # 1-794-116-11

JR470 J-18 # # 0 # #

#

PS401 B-17 1-576-336-21 1-576-336-21 1-576-336-21 1-576-336-21 1-576-336-21 1-532-686-21

Q410 F-18 # # 

#                   2SDA601A-QRS-TX                    #    2SDA601A-QRS-TX

Q503 M-11 8-729-422-27 8-729-422-27 8-729-120-28 8-729-422-27 8-729-422-27 8-729-422-27

Q506 J-9 8-729-422-27 8-729-120-28 8-729-120-28 8-729-120-28 8-729-120-28 8-729-120-28

R103 B-4 # # 0 # #

#

R114 B-4 # # 0 # #

#

R115 B-4 0 0 # 0 0

0

R206 G-4 # # 0 # #

#

R214 G-4 470K 470K # 470K 470K 470K

R401 D-18 # # # # # 20K

R402 D-18 # # # # # 10K

R409 F-16 # # 4.7K # #

#

R424 F-16 4.7K 4.7K 4.7K # 4.7K #

R425 F-16 4.7K 4.7K 0 #   4.7K #

R426 C-18 # # # # #

22

R429 B-13 # # # 470K # 470K

R430 B-13 # # # 1K # 1K

R431 B-14 # # # 1K # 1K

R432 E-16 10K 10K 10K 33K 10K 33K

R433 B-13 # # # 470K # 470K

R436 D-14 4.7K 4.7K 4.7K 10K 4.7K 10K

R437 E-15 4.7K 4.7K 4.7K 10K 4.7K 10K

R438 E-14 4.7K 4.7K # 10K 4.7K 10K

R439 E-15 4.7K 47K 47K 10K 4.7K 10K

R441 E-18 # # # # # 22K

R442 E-18 # # # # # 100

R443 E-3 220 220 220 # 220 #

R444 E-3 220 220 220 # 220 #

R446 D-19 # # # 33K # 33K

R601 H-9 4.7M   1/2W # # 4.7M   1/2W #

#

R605 H-8 1 10W 1.2 10W 1.2 10W 1 10W 1.2 10W 1.2 10W

R606 G-8 1 10W 1.2 10W 1.2 10W 1 10W 1.2 10W 1.2 10W

R615 H-9 # 8.2M 8.2M # 8.2M 8.2M

R621 H-10 # 1.2 10W 1.2 10W # 1.2 10W 1.2 10W

R627 H-11 390K 270K 270K 390K 270K 270K

R628 H-11 JW 5.0 MM 270K 270K JW 5.0 MM 270K 270K

R637 H-11 JW 20.0 MM 5.6K 5.6K JW 20.0 MM 5.6K 5.6K

R638 H-14 33 56 56 33 56 56

R660 H-11 15K  3W 5.6K  3W 5.6K  3W 15K  3W 5.6K  3W 5.6K  3W

R662 H-11 JW 20.0 MM 5.6K 5.6K JW 20.0 MM 5.6K 5.6K

R2005 K-5 0 0 0 # 0

0

R2007 K-5 # # # # 470 #

T602 H-6 1-431-419-11 1-426-717-11 1-426-717-11 1-431-419-11 1-426-717-11 1-426-717-11

T603 F-15 1-433-806-11 1-433-807-11 1-433-807-11 1-433-806-11 1-433-807-11 1-433-807-11

THP601 G-6 1-809-539-11 1-803-540-11 1-803-540-11 1-809-539-11 1-803-540-11 1-803-540-11

TU101 A-3 8-598-431-30 8-598-431-30 8-598-501-00 8-598-431-30 8-598-542-00 8-598-542-00

VDR601 I-6 1-803-585-11 1-803-967-11 1-803-967-11 1-803-585-11 1-803-967-11 1-803-967-11

` 

#: Not Mounted

  Board 

879 A-K Board Schematics.p65 2/1/00, 2:45 PM

1