Read Sharp CD-C471H (serv.man13) Service Manual online
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CD-C471H
IC201 RH-iX0171AWZZ:System Microcomputer (IX0171AW) (2/2)
52
VDD
—
Positive power supply
53
CD O/C SW
Input
CD open-close switch input
54
DISC No. SW
Input
CD turntable position detection input
55
CD U/D SW
Input
CD mechanism UP/DOWN chucking detection input
56*
T1 CrO SW
Input
Tape 1 CrO
2
detection SW input
57*
SRS INH
Output
SRS (surround) position selection output
58*
SRS B
Output
SRS (surround) position selection output
59*
SRS A
Output
SRS (surround) position selection output
60*
SRS 3D
Output
SRS (surround) position selection output
61
SRS PASS
Output
SRS (surround) position selection output
62
SPAN 9K/10K
Input
Tuner span selector 9 kHz/10 kHz selection input
63
DOLBY
Input
DOLBY detection input, not applied in this machine
64
SRS
Input
SRS detection input, not applied in this machine
65
BALANCE
Input
BALANCE detection input, not applied in this machine
66
4SP
Input
4SP detection input, not applied in this machine
67
TAPE A-FP SW
Input
Tape A side miserase preventing SW input
68
TAPE B-FP SW
Input
Tape B side miserase preventing SW input
69
TAPE PB MUT
Output
Tape playback mute output
70
TAPE T1/T2
Output
Tape 1/2 selection
71
VLOAD
—
To be connected to GND
72
TAPE BIAS
Output
Tape bias circuit selection
73*
————
—
Not used
74*
————
—
Not used
75
TAPE BEET CUT
Output
Beat cancel signal control output
76*
TAPE HI SPEED
Output
Tape mechanism High-Low speed selection
77*
————
—
Not used
78*
————
—
Not used
79*
TAPE PB EQ
Output
Tape circuit playback Eq selection
80
TAPE REC MUT
Output
Tape circuit record muting output
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
Terminal Name
Pin No.
Input/Output
Function
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