Sony HCD-F50 Service Manual page 66

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Pin No. Pin Name
EMPH
29
30 C2F
DOUT
31
TEST3
32
33 TEST4
NC
34
MUTEL
35
36 LVDD
LCHO
37
38 LVSS
39 RVSS
RCHO
40
41 RVDD
42 MUTER
XVDD
43
44 XOUT
XIN
45
XVSS
46
47 SBSY
EFLG
48
PW
49
SFSY
50
TE
L 13942296513
51 SBCK
52 FSX
WRQ
53
54 RWC
55 SQOUT
COIN
56
CQCK
57
RES
58
59 TEST11
60 16M
4.2M
61
62 TEST5
63 CS
64 TEST1
Note) Supply the same potential to each power supply pin (VDD, VVDD, LVDD, RVDD, XVDD).
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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
Subcode frame sync signal output
O
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
I
Schmidt 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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2 9
8
Function
Q Q
3 6 7 1 3 1 5
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9 4 2 8
0 5 8 2 9 9 4 2 8
m
9 9
9 9