Harman Kardon FL8385 Service Manual page 44

FL8385
IC4 MCU 8380-2 HD6433643RB63H HITACHI
Pin Functions
Pin Name Description
1 PB1 No connection
2 PB0 No connection
3 AVSS Connected 0V
4 TEST Connected 0V
5 X2 No connection
6 X1 Connected 5V
7 VSS MCU ground line; connected to 0V
8 OSC1 10MHz crystal input
9 OSC2 10MHz crystal input
10 RES MCU reset line; 0V = reset; 5V = normal operation
11 S0 CD Changer Mechanism door position switch
12 S1 CD Changer Mechanism door position switch
13 S2 CD Changer Mechanism door position switch
14 DN CD Changer Mechanism door motor control line
15 UP CD Changer Mechanism door motor control line
16 S0S1 CD DSP SUBQ ready input; high pulse for SUBQ ready
17 P60 No connection
18 P61 No connection
19 CDRW CDRW RF gain control; 0V=CDRW
20 PUSW Laser pickup inner switch; 5V=pickup at inner position
21 XRST CD DSP reset line; 0V = DSP reset
22 STAT CD DSP internal status output
23 DMUTE CD DSP mute control; 5V = mute on
24 SUBQ SUBQ output
25 SQCK SUBQ output serial clock
26 TLOCK No connection
27 FLOCK No connection
28 SENSE No connection
29 MLD CD DSP command latch
30 MDATA CD DSP serial command data
31 MCLK CD DSP serial command clock
32 P57 No connection
33 VCC MCU power supply; connected to 5V
34 DAC.LD PCM1732 serial command latch
35 DAC.CLK PCM1732 serial command clock
36 DAC.DATA PCM1732 serial command data
37 DACRST PCM1732 reset pin; 0V = reset
38 POWER Servo power on/off control; 5V = power on
39 DSNS Disc detection optical sensor output; 0V = disc present
40 TRSW Carousel position detection optical sensor output
41 RL+ Carousel motor line
42 RL- Carousel motor line
43 HDCD HDCD decoding status from PCM1732; 5V = HDCD
44 AMUTE System mute control; 0V = mute
45 P86 No connection
44
harman/kardon
FL8380