Sony D-F181 Service Manual page 15

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Pin No.
51
52 VREFH (VCPU-REF)
53
54
55
56
57
58
59
60
61
62
63, 64
65 STEP-I-TU (9K/10K)
66 to 69
70 ACKNOWLEDGE-I-TU
71
72
73
74
75
76
77
TE
L 13942296513
78
79
80
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Pin Name I/O
NOT USED I
I
VREFL (GND-REF)
I
AD-I-ESPSL/TEST I
AD-I-KEY I
AD-I-WRMT I
AD-I-HI-DC I
AD-I-BAT I
AD-I-CHGMNT
I
VSS (GND) —
AD-I-VCC I
AD-I-DSP-OFFSET I
NOT USED —
I
NOT USED —
I
NOT ISED —
CDON-O-TU O
R/W-O-DSP O
CDAUDIO-O-ASW O
TUAUDIO-O-ASW O
SCK-O-TU O
SDT-O-TU
O
C2POCTRL O
TUREQ-O-TU O
XRST-O-DSP O
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Description
A/D port positive power supply reference
A/D port ground reference
ESP selector/test
A/D input terminal for main unit key
A/D input terminal for remote control key
A/D input terminal for DC in voltage detection
A/D input terminal for battery/dry cell detection
A/D input terminal for charging monitor
ground
A/D input terminal for Vcc voltage monitor
A/D input terminal for DSP off-set monitor
TUNER (9K/10K) step detection input terminal
TUNER acknowledge input terminal
CD micon status output terminal "H": CD mode
read/write control output terminal.
CD audio signal control terminal "H": CD audio on
TUNER audio signal control terminal "H": TUNER audio on
serial clock output terminal for TUNER micon
Q Q
serial data output terminal for TUNER micon
3 6 7 1 3
C2PO signal control terminal
serial output to TUNER micon
reset output terminal for DSP "L": reset
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