Canon LV-7545U, Service Manual

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2.6 IC bus DA converter (IC3551, M62399FP) port function
2.7 IC bus DA converter (IC3501, M62399FP) port function
Part 4: Troubleshooting
4-13
1 R Serial Data output port (Not connected) O
2 SCL IIC BUS SCL I
3 SDA IIC BUS SDA I/O
4 A05 Not used O
5 A06 V_COMR O
6 A07 V_COMG O
7 A08 V_COMB O
8 VrefL DAC Lower Reference Voltage input -
9 VrefU 1 DAC Upper Reference Voltage input (CH5~CH8) -
10 Vss GND -
11 VrefU2 DAC Upper Reference Voltage input (CH1~CH 4) -
12 A01 SIG1 O
13 A02 SIG2 O
14 A03 SIG3 O
15 A04 SIG4 O
16 Vcc Power Supply for Output Buffer (2.4*VrefU ~ 12V) -
17 Vdd Power 5V±10 % -
18 CS2 Slave address setting port 2 (GND) I
19 CS1 Slave address setting port 1 (GND) I
20 CS0 Slave address setting port 0 (GND) I
Pin No. Name Signal name Polarity
1 R Serial Data output port (Not connected) O
2 SCL IIC BUS SCL I
3 SDA IIC BUS SDA I/O
4 A05 Not used O
5 A06 REF_B O
6 A07 REF_G O
7 A08 REF_R O
8 VrefL DAC Lower Reference Voltage input -
9 VrefU 1 DAC Upper Reference Voltage input (CH5~CH8) -
10 Vss GND -
11 VrefU2 DAC Upper Reference Voltage input (CH1~CH 4) -
12 A01 B_CENT O
13 A02 G_CENT O
14 A03 R_CENT O
15 A04 Not used O
16 Vcc Power Supply for Output Buffer (2.4*VrefU ~ 12V) -
17 Vdd Power 5V±10 % -
18 CS2 Slave address setting port 2 (GND) I
19 CS1 Slave address setting port 1 (GND) I
20 CS0 Slave address setting port 0 (GND) I
Pin No. Name Signal name Polarity