Sony HCD-F250AV Service Manual page 53

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Pin No. Pin Name
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
TE
51
L 13942296513
52
53
54
55
56
57
58
59
60
61
62
63
64
Note) Supply the same potential to each power supply pin (VDD, VVDD, LVDD, RVDD, XVDD).
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I/O
EMPH O Deemphasis monitor The deemphasis disc is being played back when "H"
C2F O C2 flag output
DOUT O Digital OUT output (EIAJ format)
TEST3 I Test input Incorporates a pull-down resistor Be sure to connect to 0V
TEST4 I Test input Incorporates a pull-down resistor Be sure to connect to 0V
NC — Not used Be sure to use it in an open state
MUTEL O L channel 1-bit DAC L channel mute output
LVDD — L channel 1-bit DAC L channel power supply
LCHO O L channel 1-bit DAC L channel output
LVSS — L channel 1-bit DAC L channel ground Be sure to connect to 0V
RVSS — R channel 1-bit DAC R channel ground Be sure to connect to 0V
RCHO O R channel 1-bit DAC R channel output
RVDD — R channel 1-bit DAC R channel power supply
MUTER O R channel 1-bit DAC R channel mute output
XVDD — Power supply for the crystal oscillator
XOUT O
Connected to the 16.9344 MHz crystal oscillator
XIN I
XVSS — Ground for the crystal oscillator Be sure to connect to 0V
SBSY O Sync signal output for the subcode block
EFLG O C1, C2, single correction, and double correction monitor
PW O Subcode P, Q, R, S, T, U, W output
SFSY O Subcode frame sync signal output
Rises when the subcode is in a standby
SBCK I Subcode read clock input Schmidt input (Connect to 0V when not in use)
FSX O 7.35 kHz sync signal output divided from the crystal oscillation
WRQ O Subcode Q output standby output
RWC I Read/write control input Schmidt input
SQOUT O Subcode Q output
COIN I Command input from the microprocessor
Command input fetching clock input or subcode extracting clock input from SQOUT Schmidt
CQCK I
input
RES I LC78622 reset input Temporarily set to "L" when the power is turned ON
TEST11 O Test output Use it in an open state (Normally, "L" output)
16M O 16.9344 MHz output
4.2M O 4.2336 MHz output
TEST5 I Test input. Incorporates a pull-down resistor. Be sure to connect to 0V
Chip select input Incorporates a pull-down resistor
CS I
Be sure to connect to 0V when not in control
TEST1 I Test input Does not incorporates a pull-down resistor Be sure to connect to 0V
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