Aiwa LCX-107, Service Manual

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Pin No. Pin Name I/O Description
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
RVSS
RCHO
RVDD
MUTER
XVDD
XOUT
XIN
XVSS
SBSY
EFLG
PW
SFSY
SBCK
FSX
WRQ
RWC
SQOUT
COIN
___________
CQCK
RES
T11
16M
4.2M
T5
______
CS
T1
—
O
—
O
—
O
I
—
O
O
O
O
I
O
O
I
O
I
I
I
O
O
O
I
I
I
R-channel GND. Be sure to connect to 0V.
R-channel 1-bit DAC.
R-channel output pin.
R-channel power supply pin.
R-channel mute output pin. (Not Connected)
Crystal oscillator power supply pin.
Pin to which external 16.9344 MHz crystal oscillator is connected.
Crystal oscillator GND pin. Be sure to connect to 0V.
Subcode block sync signal output pin. (Not Connected)
C1, C2, single and dual correction monitoring pin. (Not Connected)
Subcode P, Q, R, S, T, U and W output pin. (Not Connected)
Subcode frame sync signal output pin. Falls down when subcode enters standby. (Not
Connected)
Subcode read clock input pin. Schmidt input. (Be sure to connected to 0V when not in use.)
Pin outputting the 7.35 kHz sync signal which is generated by dividing frequency of crystal
oscillator. (Not Connected)
Subcode Q output standby output pin.
Read/write control input pin. Schmidt input.
Subcode Q output pin.
Command input pin from microprocessor.
Command input read clock or subcode read input clock from SQOUT pin
LC78622 reset input pin. Set this pin to L once when the main power is turned on.
Test signal output pin. Use this pin as open (normally L output).
16.9344 MHz output pin.
4.2336 MHz output pin.
Test signal input pin with built-in pull-down resistor. Be sure to connect to 0V.
Chip select signal input pin with built-in pull-down resistor. Be sure to connect to 0V while it is
not controlling.
Test signal input pin without built-in pull-down resistor. Be sure to connect to 0V.