Sony HCD-H33D, Руководство по обслуживанию

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Pin No. Pin Name I/O Function
1 ENC I Volume encoder input terminal
2 SIRCS I Remote commander signal input
3 REQ. MG I Data transmission request input from master control Not used (Pull up)
4 REQ. GM O Data transmission request output to master control
5-9 LED O LED drive signal Not used (Open)
10 RDY I/O Master control Ready signal input/output “L”: Ready
11 SCK. IN I Clock output for communications with master control
12 SD. IN I Serial data input from master control
13 SD. OUT O Serial data output to master control
14 LED_PAUSE O PAUSE LED Output
15 LED_CD O CD LED Output
16 LED_TUNER/BAND O TUNER/BAND LED output
17 LED_TAPE O TAPE LED Output
18 LED_FWD. STOP. FF & REW O
(
,
p
,
0
,
)
LED drive signal output
19 LED_DECK_A/B & REV O
9
, DECK SELECT LED
20 LED_A O A LED Output
21 LED_B O B LED Output
22 KEY1 I Not used (Pull up)
23 KEY2 I
24 KEY3 I Key matrix input (A/D converter)
25 KEY4 I
26-29 BPF1-4 I Not used (Connected to Ground)
30 RST I Reset signal input
31 EXTAL I
System clock (4 MHz)
32 XTAL O
33 Vss — Ground
34-62 P29-P1 O FL Drive
63-69 7G-1G O FL grid signal output
70 NC — Not used (Open)
71 VFDP — LED Driver –25 V power supply
72 VDD — Power supply (+5 V)
73, 74 KEY — Not used (Pull up)
75 VDD (TEST) — Power supply (+5 V)
76 LED_TUNER_COMMON O TUNING MODE, STEREO/MONO, TUNER MEMORY LED drive signal output
77 LED_ENTER/NEXT O ENTER/NEXT LED drive signal output
78 ENC B I
AMS encoder signal input
79 ENC A I
80 ENC — Not used (Pull up)
PANEL BOARD IC501 CXP82612-016Q (DISPLAY CONTROL)
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