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CGA monitor with green, amber, and RGB modes.
Known Issues
No video
Causes
- Failing electrolytic capacitors
Solutions
- Replace electrolytic capacitors
Disassembly Notes
Two screws under plastic caps on top behind monitor bezel.
Original Parts
Neck Board
Capacitor Specifications and Footprint Information
| RefDes
|
Qty
|
Capacitance
|
Voltage
|
Mount
|
Diameter/Size
|
Height
|
Lead Spacing
|
Temp
|
Type
|
Brand
|
Series
|
| C303, C333
|
2
|
22 µF
|
25
|
Through Hole
|
5
|
11
|
3
|
85 °C
|
Aluminum Electrolytic
|
Elecon
|
|
| C363
|
1
|
22 µF
|
25
|
Through Hole
|
5
|
11.5
|
3
|
105 °C
|
Aluminum Electrolytic
|
Teapo
|
SE
|
| C383
|
1
|
2.2 µF
|
250
|
Through Hole
|
10
|
12
|
5
|
85 °C
|
Aluminum Electrolytic
|
Teapo
|
SE
|
| C391
|
1
|
470 µF
|
16
|
Through Hole
|
10
|
17
|
5.5
|
85 °C
|
Aluminum Electrolytic
|
Elecon
|
|
| C392
|
1
|
33 µF
|
160
|
Through Hole
|
13
|
25
|
5.5
|
85 °C
|
Aluminum Electrolytic
|
Teapo
|
SE
|
Control Board
Capacitor Specifications and Footprint Information
| RefDes
|
Qty
|
Capacitance
|
Voltage
|
Mount
|
Diameter/Size
|
Height
|
Lead Spacing
|
Temp
|
Type
|
Brand
|
Series
|
| Bodge
|
1
|
22 µF
|
25
|
Through Hole
|
5
|
11
|
3
|
85 °C
|
Aluminum Electrolytic
|
Elecon
|
|
| C101
|
1
|
470 µF
|
25
|
Through Hole
|
13
|
20
|
5.5
|
105 °C
|
Aluminum Electrolytic
|
Teapo
|
SE
|
| C102
|
1
|
220 µF
|
25
|
Through Hole
|
10
|
12
|
5
|
85 °C
|
Aluminum Electrolytic
|
Elecon
|
|
| C103
|
1
|
1 µF
|
50
|
Through Hole
|
5
|
11.5
|
3
|
85 °C
|
Aluminum Electrolytic
|
Elecon
|
|
| C104, C105, C112, C113
|
4
|
10 µF
|
50
|
Through Hole
|
5
|
12
|
3
|
85 °C
|
Aluminum Electrolytic
|
Elecon
|
|
| C109
|
1
|
22 µF
|
200
|
Through Hole
|
13
|
25
|
5.5
|
85 °C
|
Aluminum Electrolytic
|
Teapo
|
SE
|
| C114
|
1
|
33 µF
|
50
|
Through Hole
|
8
|
11
|
3
|
85 °C
|
Aluminum Electrolytic
|
Elecon
|
|
| C115, C116, C121
|
3
|
47 µF
|
25
|
Through Hole
|
6.5
|
11.5
|
3
|
85 °C
|
Aluminum Electrolytic
|
Elecon
|
|
Factory bodge capacitor is on the back of the board between pins 3 & 7 on IC102, with negative on pin 7.
Power Supply
Capacitor Specifications and Footprint Information
| RefDes
|
Qty
|
Capacitance
|
Voltage
|
Mount
|
Diameter/Size
|
Height
|
Lead Spacing
|
Temp
|
Type
|
Brand
|
Series
|
| C907, C924
|
2
|
470 µF
|
200
|
Through Hole
|
30
|
43
|
15
|
85 °C
|
Aluminum Electrolytic
|
Teapo
|
NC
|
| C908, C914, C915
|
3
|
100 µF
|
25
|
Through Hole
|
8
|
12
|
3
|
105 °C
|
Aluminum Electrolytic
|
Teapo
|
SE
|
| C913
|
1
|
1 µF
|
50
|
Through Hole
|
5
|
12
|
3
|
105 °C
|
Aluminum Electrolytic
|
Teapo
|
SE
|
| C921
|
1
|
220 µF
|
50
|
Through Hole
|
10
|
20
|
5.5
|
85 °C
|
Aluminum Electrolytic
|
Elecon
|
|
| C922
|
1
|
2200 µF
|
25
|
Through Hole
|
16
|
35.5
|
8
|
105 °C
|
Aluminum Electrolytic
|
Teapo
|
SE
|
| C923
|
1
|
220 µF
|
160
|
Through Hole
|
25.5
|
26.5
|
12
|
85 °C
|
Aluminum Electrolytic
|
Teapo
|
LY
|
Main Board
Capacitor Specifications and Footprint Information
| RefDes
|
Qty
|
Capacitance
|
Voltage
|
Mount
|
Diameter/Size
|
Height
|
Lead Spacing
|
Temp
|
Type
|
Brand
|
Series
|
| C251
|
1
|
100 µF
|
25
|
Through Hole
|
8
|
12
|
3
|
105 °C
|
Aluminum Electrolytic
|
Teapo
|
SE
|
| C252
|
1
|
220 µF
|
10
|
Through Hole
|
8
|
12
|
3
|
105 °C
|
Aluminum Electrolytic
|
Teapo
|
SE
|
| C253
|
1
|
0.47 µF
|
50
|
Through Hole
|
5
|
12
|
3
|
105 °C
|
Aluminum Electrolytic
|
Teapo
|
SE
|
| C254, C602, C702
|
3
|
1 µF
|
50
|
Through Hole
|
5
|
12
|
3
|
85 °C
|
Aluminum Electrolytic
|
Elecon
|
|
| C255, C728
|
2
|
33 µF
|
16
|
Through Hole
|
5
|
12
|
3
|
105 °C
|
Aluminum Electrolytic
|
Teapo
|
SE
|
| C382
|
1
|
1 µF
|
200
|
Through Hole
|
6
|
12
|
3
|
85 °C
|
Aluminum Electrolytic
|
Teapo
|
SE
|
| C608
|
1
|
330 µF
|
16
|
Through Hole
|
10
|
12
|
5
|
85 °C
|
Aluminum Electrolytic
|
Elecon
|
|
| C610
|
1
|
10 µF
|
16
|
Through Hole
|
8
|
12
|
4
|
85 °C
|
Aluminum Electrolytic
|
Nichicon
|
SH
|
| C611
|
1
|
10 µF
|
50
|
Through Hole
|
5
|
12
|
3
|
85 °C
|
Aluminum Electrolytic
|
Elecon
|
|
| C612
|
1
|
3.3 µF
|
100
|
Through Hole
|
5
|
11.5
|
3
|
85 °C
|
Aluminum Electrolytic
|
Elecon
|
|
| C613
|
1
|
680 µF
|
25
|
Through Hole
|
13
|
25
|
6
|
85 °C
|
Aluminum Electrolytic
|
Elecon
|
|
| C614
|
1
|
4.7 µF
|
200
|
Through Hole
|
10
|
12
|
5
|
85 °C
|
Aluminum Electrolytic
|
Elecon
|
HV
|
| C615
|
1
|
680 µF
|
16
|
Through Hole
|
13
|
18
|
5.5
|
85 °C
|
Aluminum Electrolytic
|
Elecon
|
|
| C617
|
1
|
47 µF
|
16
|
Through Hole
|
10
|
20
|
5
|
85 °C
|
Aluminum Electrolytic
|
Nichicon
|
SH
|
| C701
|
1
|
47 µF
|
25
|
Through Hole
|
6
|
11.5
|
3
|
105 °C
|
Aluminum Electrolytic
|
Teapo
|
SE
|
| C703
|
1
|
22 µF
|
25
|
Through Hole
|
5
|
11.5
|
3
|
105 °C
|
Aluminum Electrolytic
|
Teapo
|
SE
|
| C720
|
1
|
47 µF
|
160
|
Through Hole
|
16
|
25.5
|
8.5
|
85 °C
|
Aluminum Electrolytic
|
Teapo
|
SE
|
| C724
|
1
|
470 µF
|
25
|
Through Hole
|
10
|
20
|
6
|
85 °C
|
Aluminum Electrolytic
|
Elecon
|
|
| C725
|
1
|
100 µF
|
160
|
Through Hole
|
16
|
31
|
8
|
85 °C
|
Aluminum Electrolytic
|
Elecon
|
HV
|
| C727
|
1
|
4.7 µF
|
50
|
Through Hole
|
5
|
12
|
3
|
105 °C
|
Aluminum Electrolytic
|
Teapo
|
SE
|
| C730
|
1
|
4.7 µF
|
250
|
Through Hole
|
10
|
17
|
5
|
85 °C
|
Aluminum Electrolytic
|
Teapo
|
SE
|
Replacement Parts
Neck Board
Control Board
Power Supply
Capacitors
| RefDes
|
Qty
|
Compatible Part Number
|
Order Links
|
| C907, C924
|
2
|
|
DigiKey Mouser
|
| C908, C914, C915
|
2
|
860020473008 / 25YXJ100MFFC5X11
|
DigiKey Mouser LCSC
|
| C913
|
1
|
860020672005 / 860020772005 / 50YXF1MEFC5X11
|
DigiKey Mouser LCSC
|
| C921
|
1
|
ESH227M050AH2AA / 50PX220MEFC10X12.5
|
DigiKey Mouser LCSC
|
| C922
|
1
|
EKMQ250ELL222MK25S / UVZ1E222MHD
|
DigiKey Mouser LCSC
|
| C923
|
1
|
|
DigiKey Mouser
|
Main Board
If parts are not available or different selection is preferred, you can use the values in the Original Parts section to perform a parametric search.
Related Links
References
