Sony M-98V, Руководство по обслуживанию, Страница: 10 / 30

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6-1. IC PIN DESCRIPTION
• IC701 MB89133LPFV-G-488BND (SYSTEM CONTROL)
Pin No. Pin Name I/O Pin Description
1 AVCC — Power supply pin. (+3 V)
2 RST I/O Reset signal input/output. Reset signal input: “L”, Software reset signal output: “L”
3 MOD 0 — Not used. (Connect to ground.)
4 MOD 1 — Not used. (Connect to ground.)
5 X 0 I Clock oscillator crystal connect pin (4 MHz). Main clock crystal oscillator signal input.
6 NC — Not used. (Open)
7 NC — Not used. (Open)
8 X 1 O Clock oscillator crystal connect pin (4 MHz). Main clock crystal oscillator signal output.
9 VCC — Power supply pin. (+3 V)
10 XDA — Not used. (Connect to ground.) (Sub clock oscillation output.)
11 NC — Not used. (Open)
12 NC — Not used. (Open)
13 XIA — Not used. (Open) (Sub clock oscillation signal output.)
14 SUBM BRK O Set-up motor brake control signal output. “H”: Brake on
15 M CTL 2 O Servo start frequency control signal output. “H”: Frequency down
16 REC CTL 2 O Bias and LED power control signal output. “H”: Bias and LED on
17 NC — Not used. (Open)
18 REC CTL 1 O Record mode select and microphone power control signal output.
“L”: REC and microphone on
19 MUTE CTL O IC101 (CX1347N) audio mute signal output. “H”: Mute on
20 C/R CTL O CUE/REVIEW mute control signal output. “H”: Mute on
21 NC — Not used. (Open)
22 PB CTL O REC/PB switch signal output. “H”: Playback mode
23 FPB CTL O FAST PB servo control signal output. “H”: FAST PB on
24 VOR COND1 I VOR IC (IC102: NJM2072M) detect signal output. “L”:VOR on (Motor stop)
25 VSS — Ground
26 PRE AMP O IC101 (CX1347N) power control signal output. “H”: Power on
27 M SPD O Motor speed control signal output (CUE increase speed). “H”: Increase speed
28 NC — Not used. (Open)
29 SUBM CTL O Set-up motor control signal output. “H”: Motor on
30 M BRK O BSL motor brake control signal output. “H”: Brake on
31 M DIR O BSL motor rotate direction control signal output. “H”: CCW, “L”: CW
32 NC — Not used. (Open)
33 M CTL 1 O BSL motor ON/OFF control signal output. “H”: Motor on
34 EN V O System peripheral power control signal output. “L”: Power on
35 VOR COND2 I VOR IC (IC102: NJM2072M) power detect signal input. “L”: Power on
36 REV NAIL I REV claw detect signal input. “L”: With REV claw
37 FWD NAIL I FWD claw detect signal input. “L”: With FWD claw
38 NC — Not used. (Open)
39 NC — Not used. (Open)
40 SERVICE I Service mode detect signal input. “L”: Service mode
41 MD 3 I MD 3 position detect signal input. “L”: MD 3
42 MD 2 I MD 2 position detect signal input. “L”: MD 2
43 MD 1 I MD 1 position detect signal input. “L”: MD 1
44 NC — Not used. (Open)
45 NC — Not used. (Open)
46 MD 0 I MD 0 position detect signal input. “L”: MD 0
47 FPB COND I FAST PB mode detect signal input. “L”: FAST PB mode
48 RIF COND I Reflector signal detect signal input. “L”: Edge input
49 NC — Not used. (Open)
50 WAKE UP I Microcomputer start-up signal input by key input (H edge input).
SECTION 6
DIAGRAMS