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