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Diagrams; Explanation Of Ic Terminals - Sony D-E660 Service Manual

Portable cd player
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5-1. EXPLANATION OF IC TERMINALS

IC801 (SYSTEM CONTROLLER) TMP88CM22F-MIR1-1
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
KEY2
17
BATMNT
18
KEY1
19
RMKEY
20
DCINMNT
21
OPEN
22
VREFL
23
VREFH
24
VDD
25
SCOR
26
GRSCOR
27
FG
28
BEEP
29
RESERVE
30
RMSCK
31
RMDATI
32
RMDATO
33
RMRW
34
RMLAT
35
WFCKI
36
COMPRESSION
37
SLVCD
38
AVLS
39
HOLD
40
BATT DET
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).
I
Volume key input terminal.
I
Battery voltage detection signal input terminal
I
Key input terminal.
I
Key input from the headphone with remote commander (A/D input).
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").
O
Communication clock output to the communication format converter (IC802).
Communication data bus input of headphone with remote commander from the communi-
I
cation format converter (IC802).
Communication data bus output of headphone with remote commander to the communi-
O
cation format converter (IC802).
Read/write control signal output of headphone with remote commander to the communi-
O
cation format converter (IC802). "L": read mode, "H": write mode
Serial data latch pulse signal output of headphone with remote commander to the commu-
O
nication format converter (IC802).
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.
– 9 –
Description
"L": reset

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