Diagrams; Explanation Of Ic Terminals - Sony D-SJ15 Service Manual

5-1. EXPLANATION OF IC TERMINALS

IC801 (SYSTEM CONTROLLER) TMP88CM22F-1A56
Pin No. Pin name
1 VSS
2 IRRMCO
3 FOKI
4 AGCPWM
5 RESERVE
6 RESERVE
7 AMUTE
8 VCC2 ON
9 XRST
10 SCK
11 MSDTI
12 MSDTO
13 WAKE UP
14 SEL
15 CHGMNT
16
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17 BATMNT
18 KEY1
19
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20 DCINMNT
21 WP OPEN
22 VREFL
23 VREFH
24 VDD
25 SCOR
26 GRSCOR
27 FG
28 BEEP
29 RESERVE
30 - 31
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32 - 34
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35 WFCKI
36 COMPRESSION
37 SLVCD
38 AVLS
39 HOLD
40 BATT DET
41 X3037
42 XHGOM
43 XLAT
44 XSOE
45 SEG15
SECTION 5

DIAGRAMS

I/O
— Ground terminal.
— Not used (OPEN).
I Focus OK signal input from the digital servo processor (IC601). "L": NG, "H": OK
O AGC control pulse signal output terminal.
— Not used (OPEN).
— Not used (OPEN).
O Analog audio muting ON/OFF control signal output terminal. "H": muting ON
O VCC2 voltage control signal output terminal.
O Reset signal output to IC601.
O Serial data transfer clock signal output to IC601.
I Serial data input from the IC601.
O Serial data output to IC601.
O WAKE-UP control signal output terminal (for system standby reset).
I Plug-in detection signal input terminal of LINE OUT/OPTICAL OUT.
I Battery charge voltage detection input from the power control (IC401).
— Not used (Fixed at "H").
I Battery voltage detection signal input terminal
I Key input terminal.
— Not used (Fixed at "L").
DC input voltage detection input terminal (A/D input) and DC input jack use/no use
I
detection input terminal.
CD door open/close detection switch (S801) input terminal.
I
The stop status is reset with the falling edge of input signal.
I Reference voltage input terminal (0V) for A/D converter.
I Reference voltage input terminal (+2V) for A/D converter.
— Power supply terminal (+2V).
I Sub-code sync (S0+S1) detection signal input from the IC601.
I GRSCOR signal input from the IC601.
I FG pulse signal input.
O Beep sound output to the headphone amplifier (IC302).
— Not used ( Fixed at "H").
— Not used (Fixed at "H").
— Not used (Fixed at "L").
I WFCK signal input from the IC601.
I G PROTECTION switch input.
I Not used (Fixed at "H").
AVLS (Automatic Volume Limiter System) switch (S803) input terminal.
I
"L": normal mode, "H": limit mode
I HOLD switch (S803) input terminal. "L": hold ON, "H": hold OFF
I External battery detection signal input terminal.
O Mode select terminal for IC601.
O Optical pick-up power ON/OFF control signal output terminal.
O Serial data latch pulse signal output to IC601.
O Serial data output enable signal output terminal.
— Not used (open).
– 9 –
Description
"L": reset
"L": ON