Aiwa AM-CL33, Service Manual

Page: 19 / 35

– 19 –
1 FR I Bias resistance terminal of VCEC oscillation frequency.
2 ISET I Bias resistance terminal of VCEC electric current charging pump.
3 VCVDD – Power supply terminal for VCEC.
4 PDO O Electric current charging pump output terminal of VCEC.
5 TEST3 I Test input terminal.
6 TEST2 I Test input terminal.
7 SLCO O Slice level output terminal of HF signal.
8 SLCIST I Bias resistance terminal of slice level adjustment amplifier.
9 EFMIN I HF signal input terminal.
10 RESETB I System Reset.
11 TEST1 I Test input terminal.
12 HFL I Track detection signal input terminal.
13 VDD2 – Power supply terminal.
14 VSS – Ground terminal.
15 VDD1 – Internal power supply terminal.
16 AVSS1 – Ground terminal for digital servo.
17 PEAK I PEAK signal input terminal.
18 BOTTOM I BOTTOM signal input terminal.
19 ABCD I Main beam light amount signal input terminal.
20 TE I Tracking error signal input.
21 FE I Focus error signal input terminal.
22 VC I Intermediate electric potential input terminal.
23 AVDD1 – Power supply terminal for digital servo.
24 MAD9 O Address output terminal to DRAM (Not connected).
25 DSW1 O Disc mode switch output.
26 MAD8 O Address output terminal to DRAM (Not connected).
27 DSW0 O Disc mode switch output.
28 MAD7 O Address output terminal to DRAM (Not connected).
29 SGC O AGC control signal output terminal.
30 MAD6 O Address output terminal to DRAM (Not connected).
31 AOFFSET O ABCD offset control signal output terminal.
32 MAD5 O Address output terminal to DRAM (Not connected).
33 FOFFSET O Focus offset control signal output terminal.
34 TOFFSET O Tracking offset control signal output terminal.
35 MAD4 O Address output signal to DRAM (Not connected).
36 TBAL O Tracking balance control signal output terminal.
37 LDREF O Laser control signal output.
38 FBAL O Focus balance control signal output.
39 VDD1 – Internal power supply.
40 VSS
–
GND.
41 VDD2
–
Power supply.
42 MAD3 – DRAM address output.
Pin No. Pin Name I/O Description
IC, LC89642