Volb - Onkyo TX-SR505 Service Manual
Black, silver and golden models
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Also See for TX-SR505:
- Instruction manual (88 pages) ,
- Service manual (73 pages) ,
- Code manual (12 pages)
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MICROPROCESSOR TERMINAL DESCRIPTIONS-2
Q701 : M30626FHPFP
Pin No.
Pin Name
SPRLF
51
EEP_SDA
52
VOLDAT
53
VOLCLK
54
EEP_SCL
55
VPOWER
56
APOWER
57
POFF2
58
FANH
59
FANCTRL
60
---
61
VCC2
62
SEC1H
63
VSS
64
PROTECT
65
VOLH
66
THERMAL
67
INIT3
68
INIT2
69
INIT1
70
BAND
71
SYSOUT
72
SYSIN
73
---
74
REMIN
75
STEREO
76
SD
77
HPDET
78
VOLB
79
VOLA
80
---
81
MICDET
82
MICMUT
83
LEDSTBY
84
FLDSDO
85
FLDCLK
86
FLDCS
87
FLDRST
88
---
89
---
90
KEYINT1
91
KEYINT0
92
KEY3
93
KEY2
94
KEY1
95
AVSS
96
KEY0
97
VREF
98
AVCC
99
HDMRST
100
I/O
Act.
Description
O
H
Control output for speaker (front) relay.
I/O
H
Data output / input to EEPROM (S24CS16A).
O
H
Data output to selector and volume IC (R2S15211).
O
CLK
Clock output to selector and volume IC (R2S15211).
O
CLK
Clock output to EEPROM (S24CS16A) I2C.
O
H
Control output for power supply of video section. Not used (D type).
O
H
Control output for main power supply.
I
L
POFF2 detect input.
O
L
Control output of cooling fan. "L" = High speed.
O
L
Control output of cooling fan. "L" = ON.
---
---
Not used.
---
---
Power supply.
O
H
Control output for power supply of power amplifier section.
---
---
Ground.
I
H
Detect input of speaker protect.
I
A/D
Detect input of speaker output level.
I
A/D
Thermal detect input.
I
A/D
Input for initial setting.
I
A/D
Input for initial setting.
I
A/D
Input for initial setting.
I
A/D
Input for tuner frequency setting.
O
L
RI (system control) output.
I
H
RI (system control) input.
---
---
Not used.
I
L
Control signal input from remote sensor.
I
L
FM stereo detect input.
I
L
FM/AM tuned detect input.
I
H
Headphone detect input.
I
H
Signal input from rotary encoder (Master volume).
I
H
Signal input from rotary encoder (Master volume).
---
---
Not used.
I
L
Detection signal input of SETUP MIC.
O
H
Control output of MIC mute.
O
L
Control output of Standby LED.
O
H
Data output to FL driver (M66005).
O
CLK
Clock output to FL driver (M66005).
O
L
Chip select output to FL driver (M66005).
O
L
Reset control output to FL driver (M66005).
---
---
Not used.
---
---
Not used.
I
L
Key interrupt input.
I
L
Key interrupt input.
I
A/D
Key input.
I
A/D
Key input.
I
A/D
Key input.
---
---
Ground for A/D converter.
I
A/D
Key input.
---
---
Power supply for reference of A/D converter.
---
---
Power supply.
O
L
Reset output to HDMI switch (AD8190).
TX-SR505/505E
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