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
P90
No connection
12
OP_SW
CD door open position switch; 0V=door open
13
CL_SW
CD door close position switch; 0V=door close
14
MTR_CL
CD door close motor control line
15
MTR_OP
CD door open 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
CD DSP track lock status; 0V = locked
27
FLOCK
CD DSP focus lock status; 0V = locked
28
SENSE
CD DSP internal status
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
P80
No connection
40
P81
No connection
41
P82
No connection
42
P83
No connection
43
HDCD
HDCD decoding status from PCM1732; 5V = HDCD
HD750
37
Содержание HD750
Страница 40: ...HD750 40...
Страница 48: ...HD750 48...
Страница 49: ...HD750 49...
Страница 50: ...HD750 50...
Страница 51: ...HD750 51...
Страница 52: ...HD750 52...
Страница 53: ...HD750 53...
Страница 54: ...HD750 54...
Страница 55: ...HD750 MAINBOARD 55...
Страница 56: ...HD750 CONTROL PANEL 56...
Страница 57: ...HD750 57...
Страница 58: ...HD750 REMOTE UNIT 58...
Страница 59: ...HD750 59...
Страница 60: ...DISPLAY PANEL PCB POWER SWITCH PCB HEADPHONES PCB HD750 60...
Страница 61: ...HD750 61...
Страница 62: ......
Страница 63: ......