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Part 4: Troubleshooting
IC Ref. No
Pin/Name I/O
IC1806
12
13
14
15
16
17
18
19
IC1807
12
13
14
15
16
17
18
19
IC1808
IC1809
Signal Name
O
SCLK
O
SDATA
O
DAC_STLOBE
O
S&H_STLOBE
O
IRM_STLOBE
O
FAN_CONT2
O
FAN_CONT1
O
Not used
O
Not used
O
DVS2
O
LAMP_ON
O
LIM-OFF
O
Not used
O
Not used
O
CTS33
O
480I_SW
2
I
KI1
3
I
KI2
4
I
KI3
5
I
KI4
6
I
Power_fail
7
I
Not used
8
I
Lamp_ERR
9
I
Not used
2
I
S_IN
3
I
CB_SW
4
I
CR_SW
5
I
CTS/V
6
I
7
I
8
I
9
I
Function
3-Line Serial Clock
3-Line Serial Data
DAC
S&H
White Uniformity
Fan Speed Control 2
Fan Speed Control 1
Vsync x 2Hz Output
Output Clock ON/OFF
RS232C Relation
Main Key Switch
Main Key Switch
Main Key Switch
Main Key Switch
Power Fail Detection
Lamp Fail
S-Input Detection
Component-Input Detection
Component-Input Detection
OEM Option
OEM Option
OEM Option
OEM Option
4-10
Note
Data Effective: Low
Data Effective: High
Data Effective: Low
Fan Control ON: High
Fan Control ON: High
Output Clock ON: High
1080i/1035i/720p:Low,others to High
Abnormal: Low
Normal: High
Abnormal: High
Normal: Low
S-Input: Low, others to High
C-Input: Low, others to High
C-Input: Low, others to High
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