Text preview for : PHILIPS 201B CM25PLUS CHASSIS schematics.pdf part of Philips 201B Philips 201B (business class) monitor schematics onlyl(pdf)



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CM25+ 21" MONITOR
Pre-Amp TDA4886A Post-Amp LM2402
(discrete)

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201B GS3 CM25

BNC DC Restore

D-SUB OSD
MC141545

Signal Selector

R G B

CRT

H

V

.
Auto Calibrate Rotation X-RAY USB device D11 DAF Cs SW Linearity Control
B+ HDRV

SDA SCL

.
EHT CPU P83C380

Block Diagram

.. .
DDC 1/2B
SDA/SCL (DDC)

.
Sync Processor TDA4856

H' H"

V'

.
MUTE

Horizontal Deflection Vertical STV9379

Degaussing
V"

Sync Switch

Power Supply Vertical Frequency

Horizontal Frequency : 30~107kHz : 50~160 Hz
HUNLOCK

+210 +81 +15 -15 +6.3

Muting & G1 Spot Killer

G1

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Terminal Schematic Diagram

PCB (A1)

201B GS3 C M25

31

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A1

2V8

A20 6V2

A16 2V8 6V2 A20

2V8

A16 2V8 A20 6V1 2V8 4V5

A16 2V8 A19 4V3 A18 4V

A17

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201B GS3 CM25
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Video Schematic Diagram

PCB(VIDEO BOARD)

CLICK HERE FOR COPPER PATH & SMD LAYER

A2 A2
A1 A2 A1
4V2

5V5

78V6 A6

A5 A3
2V5 4V8

A4
2V7 55V8 5V1

102V8 5V 4V4

80V6 A6

A6
80V2

5V1

A4
2V5 57V5

A5

A3
2V7

A2
4V2 4V9 2V6

A4 A3
2V6

A5
56V7

A1

A2
4V3 1V2 4V9

99V 11V8 4V8 4V9 82V6
4V1

-18V 4V7

101V4 4V9 4V2

4V8

1V3

5V

A7
4V4 4V9 4V9 4V9 4V8 166V2 166V2 173V3 80V1 173V3 166V2 78V6

A8 A9
0.5V 173V3

80V5

A12

A12

A12

80V6 80V3 2V7 79V9

80V2 78V4 2V6

78V7

A13

2V5

A14

A13
1V8

A14

A13
1V8

A14
1V8

A10 A11
1V7 10V7 1V8 1V8 4V9 4V9

A15 4V9

4V6

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S

34

201B GS 3 CM 25 Go to cover page

Waveform (A)
A20 7001-27 A13 7805-B A10 7802-8 A5 7705-5 A3 7701-19 A1 8701-6 B1 7404-14 B8 7421-12 B15 7566-C

Waveform (B)
B22 7501-G B29 7465-C B36 7301-16 B43 7671-D

Waveform (C)
C1 5130-1 C8 5130-12

A16 7001-3

0.5 V/div AC 5 mS/div

1 V/div AC 5 mS/div

10 V/div AC 5 mS/div

1 V/div AC 5 mS/div

5 V/div AC 5 mS/div

1 V/div AC 5 mS/div

50 mV/div AC 5 mS/div

1 V/div AC 5 mS/div

0.2 V/div AC 5 mS/div

2 mV/div AC 5 uS/div

1 V/div AC 5 uS/div

5 V/div AC 5 mS/div

1 V/div AC 5 mS/div

2 V/div AC 5 uS/div

10 V/div AC 2 uS/div

10 V/div AC 5 mS/div

A16 7001-7

A20

7001-29

A14 7803-C

A11 7801-5

A6 1710-11

A3 7701-16

A1 8701-4

B2 7404-13

B9

7421-13

B16

7566-B

B23 7501-D

B30 7425-E

B37 7301-17

B44 7672-D

C2 5130-3

C9 7111-B

0.5 V/div AC 5 mS/div

1 V/div AC 5 mS/div

1 V/div AC 5 mS/div

1 V/div AC 5 mS/div

10 V/div AC 5 mS/div

1 V/div AC 5 mS/div

50 mV/div AC 5 mS/div

1 V/div AC 5 mS/div

0.2 V/div AC 5 mS/div

5 V/div AC 5 mS/div

20 V/div AC 5 uS/div

1 V/div AC 5 uS/div

1 V/div AC 5 mS/div

5 V/div AC 5 uS/div

5 V/div AC 2 uS/div

5 V/div AC 5 mS/div

A16 7001-11

A14 7804-C

A12 7809-C

A6 1710-8

A4 7705-9

A1 8701-2

B3 7404-12

B10

7421-32

B17 7567-2

B24 7502-C

B31 7541-D

B38 7301-18

B45 5671-9

C3 5130-5

C10 7163-B

0.5V/div AC 5 mS/div

1 V/div AC 5 mS/div

10 V/div AC 5 mS/div

10 V/div AC 5 mS/div

0.5 V/div AC 5 mS/div

50 mV/div AC 5 mS/div

1 V/div AC 5 mS/div

1 V/div AC 5 mS/div

5 V/div AC 5 mS/div

50 V/div AC 5 uS/div

10 V/div AC 5 uS/div

0.2 V/div AC 5 mS/div

20 V/div AC 5 uS/div

0.5 V/div AC 2 uS/div

5 V/div AC 5 mS/div

A17 7001-16

A14 7805-C

A12 7810-C

A6 1710-6

A4 7705-11

A2 7701-6

B4

7421-14

B11

7421-6

B18 7567-6

B25 5503-5

B32 7601-C

B39 7301-42

B46 5671-3

C4 5130-5

C11 7130-4

0.5 V/div AC 5 mS/div

1 V/div AC 5 mS/div

10 V/div AC 5 mS/div

10 V/div AC 5 mS/div

0.5 V/div AC 5 mS/div

0.5 V/div AC 5 mS/div

1 V/div AC 5 mS/div

2 V/div AC 10 uS/div

2 V/div AC 5 mS/div

10 V/div AC 5 uS/div

10 V/div AC 5 mS/div

0.5 V/div AC 10 uS/div

20 V/div AC 5 uS/div

0.5 V/div AC 2 uS/div

5 V/div AC 5 mS/div

A18 7001-18

A15 7802-2

A12 7808-C

A7 7781-5

A4 7705-8

A2 7701-8

B5 7421-16

B12

7421-8

B19 7567-3

B26 7491-7

B33 7601-B

B40 7652-C

B47 5671-1

C5 5130-9

C12 7130-3

0.5V/div AC 5 mS/div

0.5 V/div AC 5 mS/div

10 V/div AC 5 mS/div

1 V/div AC 5 uS/div

0.5 V/div AC 5 mS/div

0.5 V/div AC 5 mS/div

0.5 V/div AC 5 mS/div

2 V/div AC 5 uS/div

2 V/div AC 5 mS/div

1 V/div AC 5 mS/div

0.5 V/div AC 5 mS/div

0.5 V/div AC 5 uS/div

20 V/div AC 5 uS/div

0.2 V/div AC 2 uS/div

5 V/div AC 5 mS/div

A19 7001-19

A13 7803-B

A8 7781-10

A5 7705-3

A2 7701-10

B6 7421-17

B13

7421-1

B20 7567-5

B27 7461-B

B34 7301-4

B41 7651-10

B48 5671-12

C6 5130-18

1V/div AC 10 uS/div

10 V/div AC 5 mS/div

1 V/div AC 5 mS/div

5 V/div AC 5 mS/div

0.5 V/div AC 5 mS/div

0.2 V/div AC 5 mS/div

50 m/div AC 5 uS/div

5 V/div AC 5 mS/div

0.1 V/div AC 5 mS/div

0.5 V/div AC 20 uS/div

0.5 V/div AC 5 uS/div

100 V/div AC 5 uS/div

5 V/div AC 5 mS/div

A20 7001-23

A13 7804-B

A9 7782-B

A5 7705-1

A3 7701-22

B7

7421-11

B14

7422-E

B21 7567-4

B28 7461-C

B35 7301-13

B42 7671-G

C7 5130-18

1V/div AC 5 mS/div

10 V/div AC 5 mS/div

0.5 V/div AC 5 mS/div

5 V/div AC 5 mS/div

1 V/div AC 5 mS/div

1 V/div AC 5 mS/div

2 V/div AC 5 uS/div

2 V/div AC 5 mS/div

2 V/div AC 5 mS/div

1 V/div AC 10 uS/div

0.5 V/div AC 5 uS/div

10 V/div AC 5 mS/div

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36

201B GS3 CM25 Go to cover page

Power Supply Schematic Diagram

Control panel

C
C1 C6

128V2

82V6

C2

C7

128V5
C5
C1

15V4 188V 84V6

C9

C8

6V9

6V2 6V3
C10

6V7 15V4
C11

3V5

18V1

C12

3V7 3V8

5V

5V

5V6 14V9

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