Pioneer VSX-45TX Service Manual page 135

5
No. Pin Name I/O
51 DAC RST O
52 DSP MUTE O
53 M62429 DT O
54 M62429 CLK O
55 EVR CS O
56 EVR CLK O
57 EVR DT O
58 DSP HREQ1 I
59 DSP HREQ2 I
60 furniture O
61 – O
−
62 5V
63 DC PROT I
−
64 GND
65 RC-AC O
66 AMUTE O
67 MRMUTE O
68 tc9274f-st O
69 tc9274f-ck O
70 tc9274f-dt O
71 TUNER CLK O
72 TUNER CE O
73 OL DET I
74 TUNER DO I
75 RDS CLK O
76 TUNER DI I
77 RDS DT O
78 RDS FM+ O
79 TMUTE O
80 STEREO I
81 TUNED I
82 EXP DT O
83 EXP CLK O
84 EXP OE O
85 EXP ST O
86 – O
87 – O
88 – O
89 – O
90 DEM LOCK I
91 SIMUKE1 I
92 SIMUKE2 I
93 WATT-IN I
94 TEMP-IN I
95 FAN STOP I
−
96 AVSS
97 – O
−
98 VREF
−
99 AVCC
100 – O
5
6
DAC/AD reset
DSP Assy mute
Data signal for multi room volume IC control
Clock signal for multi room volume IC control
Chip select signal for erectronic volume
Clock signal for erectronic volume
Data signal for erectronic volume
Error detection signal of DSP1 microcomputer
Error detection signal of DSP2 microcomputer
Furniture control signal
L" fixed
5V power supply
DC detection L: Detection
Ground
AC relay ON/OFF
System mute L: Mute ON
Multi room mute L: Mute ON
Function SW control (STEREO)
Function SW control (CLOCK)
Function SW control (DATA)
Clock signal of tuner control
Chip select signal of tuner control
Amp. overload detection L: Detection
Data input signal of tuner control (pullup)
L" fixed
Data output signal of tuner control
L" fixed
L" fixed
Tuner mute
L: STEREO (pullup)
L: TUNED (pullup)
Data signal of expansion IC control
Clock signal of expansion IC control
Output enable signal of expansion IC control
Chip clock signal of expansion IC control
NC
NC
NC
NC
Not used
Destination read 1
Destination read 2
Wattage detection Level detection with AD
Temperature detection Level detection with AD
Fan forced stop detection
Connect to VSS
NC
Connect to VCC
Connect to VCC
NC
6
7
Pin Function
VSX-45TX
7
8
Active
A
H
B
L
H
L
L
C
L
H
L
L
D
A/D
E
A/D
H
L
F
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