Sony STR-DE235 Service Manual page 23

Pin No. Pin Name I/O
43 VOL UP
44
SYS-POWER
45 TUNER-MUTE
46
RDS CLK IN
47
STOP
48 VSS
49
SIRCS
50
MUTING LED
51
5.1CH LED
52 VDD
53
BASS BOOST
54
FUNC. MUTE
55
IC. MUTE
56
VERSION
57
S2
58 S1
59
LED1
60
LED2
61
LED3
62 to 70
S15 to S7
71 VLOAD
72 to 77
S6 to S1
78 to 80
DIG10 to DIG8
Motor drive signal (volume up direction) output to the volume motor drive (IC202)
O
"H" active
I
Power on/off switch (S200 I/u) input terminal "L" is input when key pressing
O Muting control signal output to the FM/AM tuner pack "H": muting on
I RDS serial clock signal input from the RDS decoder (IC1)
Power down detection signal input from the reset signal generator (IC950)
I
"L": power down, normally: "H"
— Ground terminal
I Sircs remote control signal input from the remote control receiver (IC203)
O LED drive signal output of the MUTING indicator (D240) "L": LED on
O LED drive signal output terminal "L": LED on Not used
— Power supply terminal (+5V)
Control signal output of the BASS BOOST circuit and LED drive signal output of the BASS
O
BOOST indicator (D228) "H": BASS BOOST on (LED on)
O Audio line muting on/off control signal output terminal "H": muting on
O Muting on/off control signal output terminal "H": muting on Not used (open)
I Setting terminal for the version
O Video input select signal output terminal Not used (pull down)
O Video input select signal output terminal Not used (pull down)
O LED drive signal output of the CENTER (D233) and REAR (D237) indicators "H": LED on
LED drive signal output of the NAME (D235) and EFFECT/DELAY (D236) indicators
O
"H": LED on
O LED drive signal output of the SET UP (D234) indicator "H": LED on
O Segment drive signal output to the fluorescent indicator tube (FL201)
— Negative power supply terminal for the fluorescent indicator tube drive (–24V)
O Segment drive signal output to the fluorescent indicator tube (FL201)
O Digit drive signal output to the fluorescent indicator tube (FL201)
Description
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