Sony HCD-MC1 Service Manual page 51

Pin No. Pin Name
29 EMPH
30 C2F
31 DOUT
32 TEST3
33 TEST4
34 NC
35 MUTEL
36 LVDD
37 LCHO
38 LVSS
39 RVSS
40 RCHO
41 RVDD
42 MUTER
43 XVDD
44 XOUT
45 XIN
46 XVSS
47 SBSY
48 EFLG
49 PW
50 SFSY
51 SBCK
52 FSX
53 WRQ
54 RWC
55 SQOUT
56 COIN
57 CQCK
58 RES
59 TEST11
60 16M
61 4.2M
62 TEST5
63 CS
64 TEST1
Note) Supply the same potential to each power supply pin (VDD, VVDD, LVDD, RVDD, XVDD).
I/O
O Deemphasis monitor The deemphasis disc is being played back when "H"
O C2 flag output
O Digital OUT output (EIAJ format)
I Test input Incorporates a pull-down resistor Be sure to connect to 0V
I Test input Incorporates a pull-down resistor Be sure to connect to 0V
— Not used Be sure to use it in an open state
O L channel 1-bit DAC L channel mute output
— L channel 1-bit DAC L channel power supply
O L channel 1-bit DAC L channel output
— L channel 1-bit DAC L channel ground Be sure to connect to 0V
— R channel 1-bit DAC R channel ground Be sure to connect to 0V
O R channel 1-bit DAC R channel output
— R channel 1-bit DAC R channel power supply
O R channel 1-bit DAC R channel mute output
— Power supply for the crystal oscillator
O
Connected to the 16.9344 MHz crystal oscillator
I
— Ground for the crystal oscillator Be sure to connect to 0V
O Sync signal output for the subcode block
O C1, C2, single correction, and double correction monitor
O Subcode P, Q, R, S, T, U, W output
O Subcode frame sync signal output
Rises when the subcode is in a standby
I Subcode read clock input Schmidt input (Connect to 0V when not in use)
O 7.35 kHz sync signal output divided from the crystal oscillation
O Subcode Q output standby output
I Read/write control input Schmidt input
O Subcode Q output
I Command input from the microprocessor
Command input fetching clock input or subcode extracting clock input from SQOUT Schmidt
I
input
I LC78622 reset input Temporarily set to "L" when the power is turned ON
O Test output Use it in an open state (Normally, "L" output)
O 16.9344 MHz output
O 4.2336 MHz output
I Test input. Incorporates a pull-down resistor. Be sure to connect to 0V
Chip select input Incorporates a pull-down resistor
I
Be sure to connect to 0V when not in control
I Test input Does not incorporates a pull-down resistor Be sure to connect to 0V
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Function