Aiwa CSD-A240 Service Manual page 22

IC, LA9241ML
Pin No.
Pin Name
1 FIN2
2 FIN1
3 E
4 F
5 TB
6 TE–
7 TE
8 TESI
9 SCI
10 TH
11 TA
12 TD–
13 TD
14 JP
15 TO
16 FD
17 FD–
18 FA
19 FA–
20 FE
21 FE–
22 A-GND
23 SP
24 SPI
25 SPG
26 SP–
27 SPD
28 SLEQ
29 SLD
30 SL–
31 SL+
32 JP–
33 JP+
34 TGL
35 TOFF
36 TES
I/O
For the connection of the pickup photodiode. Addition to the FIN1 pin creates an RF
I
signal and subtraction from it create an EF signal.
I For the connection of the pickup photodiode.
For the connection of the pickup photodiode. Subtraction from the F pin creates a TE
I
signal.
I For the connection of the pickup photodiode.
I Inputs the DC components in the TE signal.
For the connection of a resistor which sets the gain of the TE signal between this pin
I
and the TE pin.
O TE signal output.
I TES (track error sense) comparator input. The TE signal is passed through a BPF.
I Shock detection input.
I Sets the time constant for the tracking gain.
O TA amp output.
I Composes the tracking phase compensation constant between the TD and VR pins.
O Sets the tracking phase compensation.
I Sets the amplitude of the tracking jump signal (kick pulses).
O Tracking control signal output.
O Focusing control signal output.
I Composes the focusing phase compensation constant between the FD and FA pins.
O Composes the focusing phase compensation constant between the FD- and FA- pins.
I Composes the focusing phase compensation constant between the FA and FE pins.
O FE signal output.
For the connection of a resistor whichs sets the gain of the FE signal between this pin
I
and the TE pin.
– Ground of analog signals.
O Single-ended output of the signals input to the CV+ and CV- pins.
I Spindle amp input.
I For the connection of a resistor which sets the gain in the spindle 12cm mode. (Not used)
I For the connection of the spindle phase compensation constant with the SPD pin.
O Spindle control signal output.
I For the connection of sled phase compensation constant.
O Sled control signal output.
I Sled feed signal input from the microprocessor.
I Tracking signal input from the DSP.
I Tracking gain control signal input from the DSP. Low gain when TGL is "H".
I Tracking off control signal input from the DSP. Off when TOFF is "H".
O Outputs the TES signal to the DSP.
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Description