Aiwa RC-AAT15, Service Manual

Page: 26 / 39

36
34 RFM I
Anti-reverse input terminal for RF summing amplifier. The gain of RF amplifier is decided by the
connection resistance between RF-M and RF-O terminals.
35 RFTC I This is a pin where the selection time constant is externally connected to control the RF level.
36 LD O APC amplifier output terminal.
37 PD I APC amplifier input terminal.
38 ~ 39 PD1 ~ PD2 I
RFI-V amplifier inverted input pin. These pins are connected to the A+C and B+C pins of the
optical pickup, receiving by currents input.
40 FEBIAS I/O Bias adjustment pin of the focus error amplifier. (Not used)
41 ~ 42 F ~ E I
F and EIV amplifier inverted input pins. These pins are connected to the F and E of the optical
pickup, receiving by current input.
43 EI –
Gain adjustment pin of the I-V amplifier E. (When not in use of BAL automatic adjustment)
(Not used)
44 VEE – GND connection pin.
45 TEO O Output terminal for tacking-error amplifier. Output E-F signal.
46 LPFI I BAL adjustment comparator input pin. (Input through LPF from TEO)
47 TEI I Input terminal for tracking error.
48 ATSC I Window-comparator input terminal for detecting ATSC.
49 TZC I Input terminal for tracking-zero cross comparator.
50 TDFCT I Capacitor connection pin for the time constant used when there is defect.
51 VC O Output terminal for DC voltage reduced to half of VCC+VEE.
52 FZC I Input terminal for focus-zero cross comparator.
Pin No. Pin Name I/O Description
1 VSS – GND.
2 LMUT O Left channel zero detection flag. (Not used)
3 RMUT O Right channel zero detection flag. (Not used)
4 SQCK I SQSO readout clock input.
5 SQSO O Sub Q 80-bit serial output.
6 SENS O SENS output to CPU.
7 DATA I Serial data input from CPU.
8 XLAT I Latch input from CPU. Serial data is latched at the falling edge.
9 CLOK I Serial data transfer clock input from CPU.
10 SEIN1 I SENS input from SSP.
11 CNIN I Track jump count signal input.
12 DATO I Serial data output to SSP.
13 XLTO O Serial data latch output to SSP. Latched at the falling edge.
14 CLKO O Serial data transfer clock output to SSP.
15 SEIN2 I Microcomputer extended interface (input A). (SENS input from SSP.)
Pin No. Pin Name I/O Description
IC, CXD2589Q
www. xiaoyu163. com
QQ 376315150
9 9
2
8 9
4 2
9 8
TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com