Sony HCD-GX470, Руководство по обслуживанию

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61
HCD-GX470/GX570
Pin No. Pin Name I/O Description
1 VDD1 -
Power supply terminal (+3.3V)
2 VSS1 - Ground terminal
3 X1 I
System clock input terminal (4.19 MHz)
4 X2 O
System clock output terminal (4.19 MHz)
5 IC I
Input terminal for the IC test Normally: fixed at "L"
6 XRESET I System reset signal input from the system controller "L": reset
7 SCK1 I Serial data transfer clock signal input from the system controller
8 SI1 I Serial data input from the system controller
9 SO1 O Serial data output to the system controller
10 I-VOL A I
Jog dial pulse input from the rotary encoder (VOLUME) (A phase input)
11 I-VOL B I
Jog dial pulse input from the rotary encoder (VOLUME) (B phase input)
12 I-JOG A I
Jog dial pulse input from the rotary encoder (multi jog) (A phase input)
13 I-JOG A I
Jog dial pulse input from the rotary encoder (multi jog) (B phase input)
14, 15
NC I
Not used
16
CE I
Chip select signal input from the system controller
17 I-MODEL
I
Destination setting terminal
18 AVSS - Ground terminal
19 to 22 KEY1 to KEY4
I Front panel key input terminal (A/D input)
23 VSS0 - Ground terminal
24 AVDD - Power supply terminal (+5V)
25 VDD0 - Power supply terminal (+5V)
26 NC
I
Not used
27 I-HALF-B
I Deck-B cassette detection signal input from the tape mechanism deck block "L": cassette in
28 I-REEL-B
I Deck-B tape reel rotating detection signal input from the tape mechanism deck block
29 I-REC-SW
I
Recording-proof detection signal input from the tape mechanism deck block
"L": recording possible
30 I-HALF-A
I Deck-A cassette detection signal input from the tape mechanism deck block "L": cassette in
31 I-REEL-A
I Deck-A tape reel rotating detection signal input from the tape mechanism deck block
32
NC I
Not used
33
O-MOTOR O Capstan/reel motor drive signal output terminal "H": motor on
34 O-SOL-A O Deck-A side trigger plunger drive signal output terminal "H": plunger on
35 O-SOL-B O Deck-B side trigger plunger drive signal output terminal "H": plunger on
36 O-TCM-SYNC O Sync signal output to the system controller
37 SW LED O LED rive signal output of the SUBWOOFER indicator "H": LED on
38
NC I
Not used
39 to 43
STREAM LED1 to
STREAM LED5
O LED rive signal output terminal "H": LED on Not used
44
NC I
Not used
45 to 58
S1 to S14
O
Segment drive signal output to the fluorescent indicator tube
59 VDD2 - Power supply terminal (+5V)
60 VLOD -
Power supply terminal (-27V)
61 to 67
S15 to S21
O
Segment drive signal output to the fluorescent indicator tube
68 to 80
G13 to G11
O
Grid drive signal output to the fluorescent indicator tube
PANEL BOARD IC701 uPD780232GC-509-8BT-A
(FLUORESCENT INDICATOR TUBE/LED DRIVER, TAPE MECHANISM DECK CONTROLLER)