Diagrams; Explanation Of Ic Terminals - Sony D-FJ737 Service Manual

QQ
3 7 63 1515 0

5-1. EXPLANATION OF IC TERMINALS

IC801 (SYSTEM CONTROLLER) T5U87-3D75 (M)
Pin No. Pin name
1
2 RESERVE
3
4 AGCPWM
5 RESERVE
6 RESERVE
7 AMUTE
8 VCC2 ON
9
10
11 MSDTI
12 MSDTO
13 WAKE UP
14
15 CHGMNT
16
17 BATMNT
18
19 RMKEY
TE
L 13942296513
20 DCINMNT
21
22 VREFL
23 VREFH
24
25
26 GRSCOR
27
28
29 RESERVE
30 RESERVE
31 RESERVE
32
33 TXTSKIP
34 XDIG VOL
35 CD RW
36 COMPRESSION
37 DIG TU
38
39
www
40 EXBAT
.
http://www.xiaoyu163.com
I/O
VSS — Ground terminal.
— Not used (OPEN).
FOKI 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.
XRST O Reset signal output to IC601.
SCK 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).
SEL I Plug-in detection signal input terminal of LINE OUT/OPTICAL OUT.
I Battery charge voltage detection input from the power control (IC401).
KEY2 I Volume key input terminal.
I Battery voltage detection signal input terminal
KEY1 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.
OPEN 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.
VDD — Power supply terminal (+2V).
SCOR I Sub-code sync (S0+S1) detection signal input from the IC601.
I GRSCOR signal input from the IC601.
MIR I FG pulse signal input.
BEEP O Beep sound output to the headphone amplifier (IC302).
— Not used (OPEN).
— Not used (OPEN).
— Not used (OPEN).
TSB O Communication data bus output of headphone with remote commander.
— Not used (OPEN).
— Not used (OPEN).
— Not used (OPEN).
I G PROTECTION switch input.
— Not used (OPEN).
AVLS (Automatic Volume Limiter System) switch (S803) input terminal.
AVLS I
"L": normal mode, "H": limit mode
HOLD I HOLD switch (S803) input terminal. "L": hold ON, "H": hold OFF
I External battery detection signal input terminal.
x ao
y
i
http://www.xiaoyu163.com
SECTION 5

DIAGRAMS

8
"L": reset
Q Q
3 6 7 1 3
u163
.
2 9 9 4 2 8
Description
1 5 0 5 8 2 9 9 4
m
co
D-FJ737
9 9
2 8 9 9
9