Service manual

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CD-CH1500H/CD-CH1500W
Input/OutputPort Name Terminal Name
1 VSS — Input GND
2 DATA — Input Serial data input.
3 CLOCK — Input Serial clock input.
4 LCK — Input Latch clock input.
5 Q0 LED_EG Output Panel LED
6 Q1 LED1 Output Stop LED
7 Q2 LED2 Output < REV PLY
8 Q3 LED3 Output << LED
9 Q4 LED4 Output >> LED
10 Q5 LED5 Output > I I LED
11 Q6 CD LED 6 Output CD 6 LED
12 Q7 CD LED 5 Output CD 5 LED
13 Q8 CD LED 4 Output CD 4 LED
14 Q9 CD LED 3 Output CD 3 LED
15 Q10 CD LED 2 Output CD 2 LED
16 Q11 CD LED 1 Output CD 1 LED
17 OE — Output Output enable.
18 VDD — Input Power supply.
Pin No.
IC702 VHiBU2092F/-1: Input/Output Expander (BU2092F)
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
1 VSS VSS Input GND
2 DATA DATA Input Serial data input.
3 CLK CLK Input Serial clock input.
4 LCK LCK Input Latch clock input.
5 Q0 CD-SW Output For CD power control.
6* Q1 N.C. Output Not used.
7* Q2 N.C. Output Not used.
8* Q3 N.C. Output Not used.
9 Q4 CD-R_SEL Output Not used.
10* Q5 LCD RESET Output LCD reset.
11* Q6 P-CONT Output Panel control output switching.
12 Q7 PNL_CL Output Panel control output.
13 Q8 PNL_OP Output Panel control output open.
14 Q9 FAN Output Fan motor ON/OFF.
15 Q10 AUX_SEL Output Not used.
16 Q11 DIG_SEL Output Not used.
17 OE OE Output Output enable.
18 VDD VDD Input Power supply.
IC912 VHiBU2092F/-1: Input/Output Expander (BU2092F)
Function
Input/OutputPort Name Terminal NamePin No.
Function