Aiwa csd-a100 Service Manual page 18

IC DESCRIPTION
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 AGND
23 NC
24 SP
25 SPG
26 SP-
27 SPD
28 SLEQ
29 SLD
30, 31 SL-, SL+
32, 33 JP-, JP+
34 TGL
35 TOFF
I/O
Pin to which external pickup photo diode is connected. RF signal is created by adding
I
with the FIN1 pin signal. FE signal is created by subtracting from the FIN1 pin signal.
I Pin to which external pickup photo diode is connected.
Pin to which external pickup photo diode is connected. TE signal is created by
I
subtracting from the F pin signal.
I Pin to which external pickup photo diode is connected.
I DC component of the TE signal is input.
Pin to which external resistor setting the TE signal gain is connected between the TE
I
pin.
O TE signal output pin.
TES "Track Error Sense" comparator input pin. TE signal is passed through a band-
I
pass filter then input.
I Shock detection signal input pin.
I Tracking gain time constant setting pin.
O TA amplifier output pin.
Pin to which external tracking phase compensation constants are connected between
I
the TD and VR pins.
I Tracking phase compensation setting pin.
I Tracking jump signal (kick pulse) amplitude setting pin.
O Tracking control signal output pin.
O Focusing control signal output pin.
Pin to which external focusing phase compensation constants are connected between
I
the FD and FA pins.
Pin to which external focusing phase compensation constants are connected between
I
the FD– and FA– pins.
Pin to which external focusing phase compensation constants are connected between
I
the FA and FE pins.
O FE signal output pin.
I Pin to which external FE signal gain setting resistor is connected between the FE pin.
— Analog signal GND.
— No connection.
O Signal ended output of the CV+ and CV- pin input signal.
I Pin to which external spindle gain setting resistor in 12 cm mode is connected.
Pin to which external spindle phase compensation constants are connected together
I
with SPD pin.
O Spindle control signal output pin.
I Pin to which external sled phase compensation constants are connected.
O Sled control signal output pin.
I Sled advance signal input pin from microprocessor.
I Tracking jump signal input pin from DSP.
I Tracking gain control signal input from DSP. Low gain when TGL = H.
I Tracking off control signal input pin from DSP. Off when TOFF = H.
28
Description