ViewSonic VA1930wm-1 Service Manual page 27

6.6 CN102 (DVI Connector)
Pin
1 T.M.D.S.Data2-
2 T.M.D.S.Data2+
T.M.D.S.Data2/4
3
Shield
4 T.M.D.S.Data4-
5 T.M.D.S.Data4+
6 DDC Clock
7 DDC Data
8 No Connect
7. Key Parts Pin Assignment
7.1 IC802 (TOP245Y or TOP246Y, Power Control IC)
Pin Symbol
1 C
2 L
3 X
4 S
5 F
6 D
7.2 IC501 (OZ9938GN, CCFL inverter controller IC)
Pin No. Symbol
1 DRV1
2 VDDA
3 TIMER
4 DIM
5 ISEN
6 VSEN
7 OVPT
8 NC
9 NC
10 ENC
11 LCT
12 SSTCMP
ViewSonic Corporation
Symbol Pin
9
10
11
12
13
14
15
16
I/O
I Control
I Line Sense
I External Current Limit
O Source of MOSFET(GND)
I Frequency
I Drain of MOSFET
I/O
O Drive output
I Supply voltage input
I Timing capacitor to set striking time and shut down delay time
Analog dimming or Internal LPWM dimming or external PWM
I
pulse input for dimming function
I Current sense feedback
I Voltage sense feedback
I Over-voltage/over-current protection threshold setting pin
I ON/OFF control of IC
Timing capacitor to set internal PWM dimming frequency and
I
also a pin for analog dimming selection
I Capacitor for soft start time and loop compensation
Symbol
T.M.D.S.Data1-
T.M.D.S.Data1+
T.M.D.S.Data1/3
Shield
T.M.D.S.Data3-
T.M.D.S.Data3+
+5V Power
Ground(for+5V)
Hot Plug Ddtect
Description
Description
Confidential - Do Not Copy
24
Pin Symbol
17 T.M.D.S.Data0-
18 T.M.D.S.Data0+
19 T.M.D.S.Data0/5 Shield
20 T.M.D.S.Data5-
21 T.M.D.S.Data5+
22 T.M.D.S.clock Shield
23 T.M.D.S.Clock+
24 T.M.D.S.Clock-
VA1930wm-1