Yamaha DSP-AX763, Service Manual

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77
RX-V663/HTR-6160/DSP-AX763
RX-V663/HTR-6160/
DSP-AX763
Function Name
(P.C.B.)
Power ON VPWR OFF STBY Thrh
Port Name
Pin
No.
232C ON [232C OFF] STANDBY [STBY Sleep]
Detail of Function
STBY CEC MCU Sleep [Sleep]
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
P132
Vcc2
P131
P130
P53
P52
P51
P50
P127
P126
P125
P47
P46
P45
P44
P43
Vcc2
P42
Vss
P41
P40
P37
P36
P35
P34
P33
P32
P31
P124
O
MCU
O
I
O
O
O
I
I
O
CS
I
O
O
O
I
O
MCU
O
MCU
O
O
O
O
O
O
O
O
O
O
/ICS
Vcc
CEC_DPWR
/HP
VIA
VIB
VIC
BYPASS
/CE
SVDET
/ICV
/OSDCE
MOD2
/MTVR1
/MTVR2
/MTMON
CPNTD
LSEL0
Vcc
LSEL1
Vss
CKEV
DTEV
/MTHP
/MTCT
/MTSW
/MTSB
/MTFS
/MTZ2
CKEX
DTEX
O
O
O
O
O
O
O
O
O
O
O
O
O
O
MCU
O
O
O
O
O
O
O
O
O
O
O
O
O
MCU
O
MCU
O
O
O
O
O
O
O
O
O
O
O
MCU
O
O
O
O
O
O
O
O
O
O
O
O
O
MCU
O
MCU
O
O
O
O
O
O
O
O
O
O
O
MCU
O
O
O
O
O
O
O
O
O
O
O
O
O
MCU
O
MCU
O
O
O
O
O
O
O
O
O
O
Reset output for VIDEO SCALER IC
L: Reset
Low Fix when VPWR OFF
ON/OFF control of CEC and DSP power supply
H: ON, L: OFF
DIR, TI DSP, XMIC resetting executed 50ms after DSP power ON
Head Phone detect
L: Head phone in use
CVBS/S input select A
Low Fix when VPWR OFF
CVBS/S input select B
Low Fix when VPWR OFF
CVBS/S input select C
Low Fix when VPWR OFF
BYPASS CVBS/S select
Low Fix when VPWR OFF
Low Fix when Stby Thrh (10/23 changed)
Input port when standby / Sleep / Backup
For flash write mode
10k-ohms pull up (+5BU), flash preventive diode
S-Video signal detect
Low Fix when VPWR OFF
Reset output for VIDEO ENC/DEC IC
Low Fix when VPWR OFF
Chip enable output for OSD IC
Low Fix when VPWR OFF
Data is taken in with PSV port set to High 20ms after resetting is cancelled
Model detect 2 (663/863)
VCR1 MUTE
Low Fix when VPWR OFF
VCR2 MUTE
Low Fix when VPWR OFF
Monitor MUTE
Low Fix when VPWR OFF
Component signal detect
Low Fix when VPWR OFF
L1 to 3 select 0
Low Fix when VPWR OFF
L1 to 3 select 1
Low Fix when VPWR OFF
PATAPATA synchronous clock output for electronic volume
PATAPATA synchronous data output for electronic volume
Mute Head Phone
Mute Center
Mute SW
Mute SBL/SBR
Mute FL/FR/SL/SR
Mute Zone2
BATABATA synchronous clock output for expansion input selector
BATABATA synchronous data output for expansion input selector
I/O