File name PHILIPS 201B CM25PLUS CHASSIS schematics.pdf30
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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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32
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 |