Aiwa LCX-107 Service Manual page 26

IC, LC78622ED
Pin No. Pin Name
1 DEFI
2 TAI
3 PDO
4 VVSS
5 ISET
6 VVDD
7 FR
8 VSS
9 EFMO
10 EFMIN
11 T2
12, 13 CLV+, CLK-
___
14 V/P
15 HFL
16 TES
17 TOFF
18 TGL
19, 20 JP+, JP-
21 PCK
22 FSEQ
23 VDD
24 SL+
25 SL-
26 —
27 PUIN
28 RW
29 EMPH
30 C2F
31 DOUT
32, 33 T3, T4
34 N.C.
35 MUTEL
36 LVDD
37 LCHO
38 LVSS
I/O
I Defect sense signal (DEF) input pin. (Connect to 0V when not used).
I Test signal input pin with built-in pull-down resistor. Be sure to connect to 0V.
O Phase comparator output pin to control external VCO.
— GND pin for built-in VCO. Be sure to connect to 0V.
For PLL.
I Pin to which external resistor adjusting the PD0 output current.
— Power supply pin for built-in VCO.
I Pin for VCO frequency range adjustment.
— Digital system GND. Be sure to connect to 0V.
O
For slice level control.
I
I Test signal input pin with built-in pull-down resistor. Be sure to connect to 0V.
O Disc motor control output. Three level output is possible using command.
Rough servo or phase control automatic selection monitoring output pin. Rough servo at H.
O
Phase servo at L.
I Track detect signal input pin. Schmidt input.
I Tracking error signal input pin. Schmidt input.
O Tracking OFF output pin.
O Tracking gain selection output pin. Gain boost at L.
O Track jump control signal output pin. Three level output is possible using command.
O EFM data PB clock monitoring pin 4.3218 MHz when phase is locked in. (Not Connected)
Sync signal detection output pin. H when the sync signal which is detected from EFM signal and
O
thesync signal which is internally generated agree. (Not Connected)
— Digital system power supply pin.
O Moves the sled to outer circumference.
O Moves the sled to inner circumference.
— Not connected.
I CD pickup inner switch detection.
O Read, wright signal. (Not Connected)
O De-emphasis monitor output pin. De-emphasis disc is being played back at H. (Not Connected)
O C2 flag output pin. (Not Connected)
O DIGITAL OUT output pin. (EIAJ format). (Not Connected)
I Test signal input pin with built-in pull-down resistor. Be sure to connect to 0V.
— Not used. Set the pin to open.
O
—
L-channel 1-bit DAC.
O
—
Description
EFM signal output pin.
EFM signal input pin.
L-channel mute output pin. (Not Connected)
L-channel power supply pin.
L-channel output pin.
L-channel GND. Be sure to connect to 0V.
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