Aiwa AM-CL33, Service Manual

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Pin No. Pin Name I/O Description
IC, LA9606
1 PPIT O Pit / Group identification signal output. Hi=pit, Lo=group
2 VCC –- Power supply pin of Matrix system.
3 J I Photo diode connection pin of pickup. Form RF signal with I pin.
4 I I Photo diode connection pin of pickup. Form RF signal with J pin.
5 P I Photo diode connection pin of pickup. Form TE signal with E pin.
6 E I Photo diode connection pin of pickup. Form TE signal with F pin.
7 D I
8 C I
Photo diode connection pin of pickup. It forms FE signal, ABCD signal, and WOO signal
9 B I
10 A I
11 VEE – Ground pin of Matrix system.
12 NC – Not used.
13 LDD O APC circuit output pin.
14 NC – Not used.
15 LDS I APC circuit input pin.
16 LDREF I Input pin for laser power setting.
17 TBAL I EF balance adjustment pin.
18 TOFF I Offset adjustment pin of TE signal.
19 FOFF I Offset adjustment pin of FE signal.
20 AOFF I Offset adjustment pin of ABCD signal.
21 SGC I VCA gain control pin.
22 DSW0 I
Disc mode setting pin. Hi = Disc with low reflectance, Lo = Disc with high reflectance. Laser
OFF when DSW0 and DSW1 are in Lo.
23 DSW1 I
Disc mode setting pin. Hi = Track in pin line, Lo = Track in group. Laser OFF when DSW0 and
DSW1 are in Lo.
24 NC – Not used.
25 VR – Pass-con connection pin for 1/2VCC.
26 VC O 1/2VCC output pin.
27 FE O Focus error signal output pin.
28 TE O Tracking error signal output pin.
29 ABCD O Main beam light amount signal output pin.
30 HFLIN I HEL signal forming pin in group mode.
31 NC – Not used.
32 BOTTOM O Bottom signal output pin of RF signal.
33 PEAK O Peak signal output pin of RF signal.
34 HFL O HFL signal (Track ON/OFF) output pin
35 RFVEE – Ground pin of RF system
36 EQO O RF equalizer output pin
37 EQI I RF equalizer input pin.
38 RFO O RF signal output pin.
39 CHFL – Capacitor connection pin for bottom hold.
40 RFVCC – Power supply pin of RF system.