Bose CD-20 Service Manual page 62

CD MECHANISM IC PIN CONFIGURATION TABLES
IC 601 (uPD75116GF-K12) Microprocessor Table (continued)
Pin I / O
No.
52 I
53 I
54
55
56
57 -
58 -
59 I
60 O
61 O
62 I/O
63
64
IC 861 (BA6398FP) CD Driver and +5V Regulator Table
Pin I / O
No.
1 O
2 O
3 I
4 -
5 O
6 O
7 I
8 -
9 -
10 I
11 O
12 O
13 -
14 O
15 I
16 I
17 O
18 O
19 I
20 -
21 -
22 -
23 I
24 -
25 I
26 O
27 O
28 -
Terminal
Name
LIFTSW Lift switch input
B
COMDO Correspondence data output
UT
N C
N C
N C
Vpp Power supply of PROM writing
Vdd Power supply (+5V)
CDINOK CD mechanism in switch input
CD+B Divider unit control signal
SCL Clock output for S-RAM data reading
and writhing
SDA S-RAM data input/output
N C
N C
Terminal
Name
OUT+ Focus amp output (-)
OUT - Focus amp output (+)
IN Focus amp input
N C
TR-B Regulator control
VREG OUT Regulator control
MUTE Mute control terminal (L: Mute)
Vss GND
N C
IN Sled amp input
OUT - Sled amp output (-)
OUT + Sled amp output (+)
Vss GND
OP OUT Op amp output
OP IN - Op amp input (-)
OP IN + Op amp input (+)
OUT + Spindle amp output (+)
OUT - Spindle amp output (-)
IN Spindle amp input
N C
Vcc +8V
Vcc +8V
VREF Bias amp input
N C
IN Tracking amp input
OUT - Tracking amp output (-)
OUT + Tracking amp output (+)
Vss GND
62
Description
Description