Aiwa CDC-X527M Service Manual page 45

IC DESCRIPTION -2/4 (IC202 LC78622) -1/1
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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 TEST2
12,13 CLV+,CLV-
14 V/P
15 HFL
16 TES
17 TOFF
18 TGL
19 JP+
TE
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20 JP-
21 PCK
22 FSEQ
23 VDD
24~28 CONT1~5
29 EMPH
30 C2F
31 DOUT
32 TEST3
33 TEST4
34 PCCL
35 LMUTE
36 LVDD
37 LOUT
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38 LVSS
39 RVSS
40 ROUT
.
41 RVDD
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I/O
I Defect detection signal (DEF) input. (Must be connected to 0V when not in used.)
I For PLL/Test input. A pull-down resistor is built-in. (Must be connected to 0V.)
O External VCO control phase comparator output.
- Internal VCO ground. (Must be connected to 0V.)
I PDO output current adjustment resistor connection.
- Internal VCO power supply.
I VCO frequency range adjustment.
- Digital system ground. (Must be connected to 0V.)
O Slice level control EFM signal output.
I Slice level control EFM signal input.
I Test input. A pull-down resistor is built-in. (Must be connected to 0V.)
O Disc motor control output. Can be set to three-value output by microprocessor command.
Rough servo/phase control automatic switching monitor output. Output a high level during
O
rough servo a low level.
I Track detection signal input. This is a Schmitt input.
I Tracking error signal input. This is a Schmitt input.
O Tracking off output.
O Tracking gain switching output. Increase the gain when low.
Track jump output. Three value output is also possible when specified by microprocessor
O
command.
O EFM data playback clock monitor. Output 4.3218 MHz when the phase is locked. (Not used)
Synchronization signal detection output. Output a high level when the synchronization signal
O detected from the EFM signal and the internaly generated synchronization signal range.(Not
used)
- Digital system power supply.
I/O General purpose input/ output pin 1 ~ 5. (Not used)
O De-emphasis monitor. A high level indicates playback of a De-emphasis disc. (Not used)
O C2 flag output. (Not used)
O Digital output. (Not used)
I Test input. A pull-down resistor is built-in. (Must be connected to 0V.)
I Test input. A pull-down resistor is built-in. (Must be connected to 0V.)
General purpose input/output command identifying. A pull-down resistor is built-in.
I "H": Control possible only for the general purpose input/ output port command.
"L": Control possible for all commands. (Must be connected to 0V.)
O Left channel mute output. (Not used)
- Left channel power supply.
O Left channel output.
- Left channel ground. (Must be connected to 0V.)
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- Right channel ground. (Must be connected to 0V.)
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O Right channel output.
i
- Right channel power supply.
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Description
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