Yamaha RX-V1200 Service Manual page 45

IC520 : M30802SGP
Pin Description
No. Port No. Function name
1 P96 TXDR
2 P95 RTS
3 P94 CTS
4 P93 FAN
5 P92 SDTN
6 P91 RXRDS
7 P90 SCKN
8 P146
9 P145 CEBU
10 P144 /FLR
11 P143 CEM0
12 P142 CEM1
13 P141 RDSE
14 P140 CES
15 BYTE BYTE
16 CNVss CNVss
17 P87 BT232C
18 P86 BTYDC
19 RESET RESET
20 XOUT XOUT
21 VSS VSS
22 XIN XIN
23 VCC VCC
24 P85 NMI
25 P84 REM1
26 P83 PSW
27 P82 PDET
28 P81 VSY
29 P80 /ICD
30 P77 RXDR
31 P76 DMT
32 P75 INT938
33 P74 DMTR
34 P73 CEP
35 P72 SCKP
36 P71 RDTP
37 P70 SDTP
38 P67 SDM
39 VCC VCC
40 P66 SDD
41 VSS VSS
42 P65 SCK
43 P64 /CSY
44 P63 CTEV
45 P62 CEEV
46 P61 CKEV
47 P60 /CSCS
48 P137 /CSPLD
49 P136 VRB
50 P135 VRA
51 P134 PRI
52 P57
53 P56
54 P55
55 P54
56 P133 /BEC
57 VSS VSS
58 P132 /Z2MT
59 VCC VCC
60 P131 /HPMT
61 P130 /MATT
62 P53
63 P52
64 P51
65 P50
66 P127 /FMTS
67 P126 /FMTC
68 P125 /FMTM
69 P47
70 P46
71 P45
72 P44
73 P43
74 VCC VCC
75 P42
I/O Detail of function
SO 232C TX DATA / YDC TX DATA
SCK 232C RTS / YDC CLOCK
I 232C CTS
DA/O FAN CONTROL
SO NON AUDIO TX DATA
SI RDS RX DATA / FREQ SW (R VER)
SCK NON AUDIO SERIAL CLOCK
O
O/I (PU) BU2092 CE / ZONE2 FUNCTION
O FL IC RESET
I/O FL1 CE / MODEL DETECT 0
I MODEL DETECT 1
O/I (PU) RDS CE / RDS FUNCTION
O/I (PU) OSD CE / NTSC / PAL FORMAT
VSS 16 BIT DATA BUS: Vss
VCC
I (PU) 232C BOOT SIG. / 6CH INPUT KEY
I YDC BOOT SIGNAL
I RESET
OPEN CLOCK OUT
VSS GROUND
12MHz CLOCK IN
VCC +5V
Un-use
INT (LoEdge) REMOTE CONTROL PULSE
INT (LoEdge) POWER SW
INT (LoEdge) POWER DETECT
Lo Edge VERTICAL SYNC PULSE
O IC DSP IC
Double Edge 232C RX DATA
O DIGITAL FULL MUTE
Lo Edge YSS938 IPINT
O DIGITAL FULL MUTE REAR L/R
I/O PLL IC CE / TUNER STEP 1
I/O PLL IC CLOCK / TUNER STEP 0
ASI PLL IC RX DATA
I/ASO PLL IC TX DATA (PU) / TUNER
SO DSP IC TX DATA
VCC +5V
SI DSP IC RX DATA
VSS GND
SCK DSP IC CLOCK
I/O YSS938 CE
O EVOL TX DATA
O EVOL CE
SCK EVOL CLOCK
I/O CS493X CS
O DIGITAL EXT. CONTROL IC CE
I VOLUME ROTARY B
I VOLUME ROTARY A
I I PROTECTION
OPEN
Vcc
OPEN
O BASS EXTENTION CONTROL
VSS GND
O ZONE 2 MUTE
VCC +5V
O HEADPHONE MUTE
O MAIN -3dB
OPEN
OE
WE
O FULL MUTE SWL / SWR / SW MONO
O FULL MUTE CENTER
O FULL MUTE MAIN L / R, RL / RC / RR
EXT. ROM ADDRESS BUS
OPEN EXT. ROM ADDRESS BUS
OPEN EXT. ROM ADDRESS BUS
OPEN EXT. ROM ADDRESS BUS
OPEN EXT. ROM ADDRESS BUS
VCC +5V
OPEN EXT. ROM ADDRESS BUS
RX-V1200/RX-V1200RDS/HTR-5490/RX-V2200
Power ON Power OFF
O
I/O
I
I
SO
SI
SCK
O
I/O
O
I/O
I
I/O
I/O
Vss
Vcc
I
I
–
–
–
–
–
–
I
I
I
I
O
I
O
I
O
I/O
I/O
I
I/O
SO
SI
SCK
I/O
SO
O
SCK
I/O
O
I
I
I
O
O
O
O
O
O
O
Backup
OL OL
OL OL
I OL
I OL
OL OL
I OL
OL OL
OL OL
I/OL OL
OL OL
I/OL OL
I OL
I/OL OL
I/OL OL
Vss Vss
Vcc Vcc
I OL
I OL
– –
– –
– –
– –
– –
– –
I OL
I OL
I I
I OL
OL OL
I OL
OL OL
I OL
OL OL
I/OL OL
I/OL OL
I OL
OL OL
OL OL
I OL
OL OL
OL OL
OL OL
OL OL
OL OL
OL OL
OL OL
I OL
I OL
I I
HI
HI
HI
HI
OL OL
OL OL
OL OL
OL OL
HI
HI
HI
HI
OL OL
OL OL
OL OL
KEEP
KEEP
KEEP
KEEP
KEEP
KEEP
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