Pioneer VSX-52TX Service Manual - Page 138

Pioneer VSX-52TX Manual

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1 2 3 No. Pin Name 51 RY BS A 52 RY C/R 53 RY A 54 RY- HP 55 RY- AC 56 HP DET 57 A MUTE 58 V+5V 59 DSP HREQ2 60 GND 61 EVR CLK B 62 5V 63 EVR DT 64 GND 65 SY DET 66 4052A 67 4052B 68 MRVSW2 69 MRVSW1 70 VIDEO3 71 VIDEO2 72 VIDEO1 C 73 OL DET 74 DC PROT 75 RDS CLK 76 RDS DT 77 RDS FM+ 78 MR MUTE 79 MICSEL 80 BIAMP 81 TUNED DO 82 TUNER CLK 83 TUNER DI D 84 TUNER CE 85 MRDATA 86 OSDRST 87 OSDCS 88 OSDCT 89 WATT IN1 90 NC 91 FAN DRIVE 92 FAN STOP 93 TEMP1 E 94 SIMUKE1 95 SIMUKE2 96 AVSS 97 - 98 VREF 99 AVCC 100 NECK I/O Pin Function O Speaker relay B ON/OFF O Rear / Center relay ON / OFF O Speaker relay A ON/OFF O Headphone relay ON / OFF O AC relay ON / OFF O Headphone detection H: detected. O System mute L: Mute ON − 5V power supply I Error detection signal of DSP2 microcomputer − Ground O Clock signal for evectronic volume − 5V power supply O Data signal for evectronic volume − Ground O System detection O Output switching control signal 1 of surround back ch O Output switching control signal 1 of surround back ch O Function SW control (Strobe) O Function SW control (Clock) O SWSP detect O SWSP detect O Control IC(NJM2296) : Video in put select I Amp. overload detection L: Detection I DC detection L: Detection O "L" fixed O "L" fixed O "L" fixed O Multi room mute L: Mute ON O MIC select I I Data input signal of tuner contror (pullup) O Clock signal of tuner control O Data output signal of tuner control O Chip select signal of tuner control O Multi room data O OSD-IC reset signal L: reset H: release reset O OSD-IC chip select signal O OSD-IC rewriting I Wattage detection Level detection with A/D I Not used O "L" fixed I Fan forced stop detection I Temperature detection Level detection with A/D I Destination read 1 I Destination read 2 − Connect to VSS O NC − Connect to VCC − Connect to VCC O Destination read 2 F 138 1 VSX-52TX 2 3 4 Active H L H L H L L A/D A/D H L 4

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VSX-52TX
138
1
2
3
4
1
2
3
4
C
D
F
A
B
E
No.
Pin Name
I/O
Pin Function
Active
51
RY BS
O
Speaker relay B ON/OFF
52
RY C/R
O
Rear / Center relay ON / OFF
53
RY A
O
Speaker relay A ON/OFF
54
RY- HP
O
Headphone relay ON / OFF
55
RY- AC
O
AC relay
ON / OFF
56
HP DET
O
Headphone detection
H: detected.
57
A MUTE
O
System mute
L: Mute ON
58
V+5V
−
5V power supply
59
DSP HREQ2
I
Error detection signal of DSP2 microcomputer
60
GND
−
Ground
61
EVR CLK
O
Clock signal for evectronic volume
62
5V
−
5V power supply
63
EVR DT
O
Data signal for evectronic volume
L
64
GND
−
Ground
65
SY DET
O
System detection
H
H
66
4052A
O
Output switching control signal 1 of surround back ch
67
4052B
O
Output switching control signal 1 of surround back ch
68
MRVSW2
O
Function SW control (Strobe)
69
MRVSW1
O
Function SW control (Clock)
70
VIDEO3
O
SWSP detect
71
VIDEO2
O
SWSP detect
72
VIDEO1
O
Control IC(NJM2296) : Video in put select
73
OL DET
I
Amp. overload detection
L: Detection
L
74
DC PROT
I
DC detection
L: Detection
75
RDS CLK
O
"L" fixed
76
RDS DT
O
"L" fixed
77
RDS FM+
O
"L" fixed
78
MR MUTE
O
Multi room mute
L: Mute ON
79
MICSEL
O
MIC select
H
80
BIAMP
I
L
81
TUNED DO
I
Data input signal of tuner contror
(pullup)
L
82
TUNER CLK
O
Clock signal of tuner control
83
TUNER DI
O
Data output signal of tuner control
84
TUNER CE
O
Chip select signal of tuner control
85
MRDATA
O
Multi room data
86
OSDRST
O
OSD-IC reset signal L: reset
H: release reset
87
OSDCS
O
OSD-IC chip select signal
88
OSDCT
O
OSD-IC rewriting
89
WATT IN1
I
Wattage detection
Level detection with A/D
90
NC
I
Not used
91
FAN DRIVE
O
"L" fixed
92
FAN STOP
I
Fan forced stop detection
93
TEMP1
I
Temperature detection
Level detection with A/D
A/D
94
SIMUKE1
I
Destination read 1
A/D
95
SIMUKE2
I
Destination read 2
H
96
AVSS
−
Connect to VSS
97
–
O
NC
L
98
VREF
−
Connect to VCC
99
AVCC
−
Connect to VCC
100
NECK
O
Destination read 2