Yamaha RX-V496 Service Manual page 28

RX-V496/RX-V496RDS/HTR-5240/HTR-5240RDS
IC501 : M30217MA-A202FP
16-bit Microcomputer
Pin Pin
Port I/O
No. Name
1 P97 SCK O Serial Clock output
2 P96 SDT O Serial Data output
3 P95 RCK O Clock output for model type
/CK2
4 P94 RDT O Data output for destination distinction
/SO2
5 P93 DEST O Data input for destination distinction
/SI2 /RD0
6 P92 RCE O Chip enable output for model type
7 P91 SCKD O Serial Clock output for DIR2
8 P90 SID O Serial data output for DIR2
9 CNVSS CNVSS
10 P87 CKB O Clock output for output port
11 P86 DTB O Data output for output port
12 /RESET /RES
13 XOUT XOUT
14 VSS MG
15 XIN MU
16 VCC +5BU
17 P85/INT5 ERRD I Error flag input from DIR2
18 P84/INT4 ERRA I Data mute detect input from AC3D2av
19 P83/INT3 REM I Remote control input
20 P82/INT2 PDT I Power down detect input
21 P81/INT1 PSW I Standby switch input
22 P80/INT0 CEAC1 O Chip enable output 1 for AC3D2av
23 P77 CEAC2 O Chip enable output 2 for AC3D2av
24 P76/CK1 CLKAC O Serial clock output 2 for AC3D2av
25 P75/RX1 RXAC I Serial data input from AV3D2av
26 P74/TX1 TXAC O Serial data output for AC3D2av
27 P73 CECOD O Chip enable output for CODEC ADC/DAC
28 P72 TCE O Chip enable output for Tuner
29 P71 CELC O Chip enable output for Input Selector
30 P70 CETC I Fixed H
*1 Model type distinction (H=1, L=0)
DSP-A (Pin 3) 0
DSP-A
RDS (Pin 6) 0
*2 Destination distinction of Tuner (H=1, L=0)
V1 (Pin 4) 0
V2 (Pin 5) 0 model
27
Function
For Input
selector Tuner,
etc.
distinction (*1)
of Tuner (*2)
of Tuner (*2)
distinction (*1)
For flash µ-COM write connector
expansion IC
expansion IC
System reset
Crystal oscillator connected (10MHz)
Ground
Crystal oscillator connected (10MHz)
+5V Power supply
0 1
DSP-E
1 0
J 0 U,C 1
1 models 0
P i n P i n
P o r t
N o . Name
31 P47/FL55 F-CE
32 P46/FL54 F-CK
33 P45/FL53 F-RX
34 P44/FL52 F-TX
35 P43/FL51 VUP
36 P42/FL50 VDN
37 P41/FL49 CDO
38 P40/FL48 DVD-C/O
39 P37/FL47 DBS-C/O
40 P36/FL46 PRI
41 P35/FL45 POT-A
42 P34/FL44 POT-B
43 P33/FL43 /ST
44 P32/FL42 DO
45 P31/FL41 /ICAC
46 P30/FL40 PRY
47 P27/FL39 SRY
48 P26/FL38 ERY
49 P25/FL37 G1
50 P24/FL36 G2
51 P23/FL35 G3
52 P22/FL34 G4
53 P21/FL33 G5
54 P20/FL32 G6
55 P17/FL31 G7
56 P16/FL30 G8
57 P15/FL29 G9
58 P14/FL28 G10
59 P13/FL27 G11
60 P12/FL26 G12
61 P11/FL25 G13
62 P10/FL24 G14
63 VCC +5VBU
64 P07/FL23 G15
65 VSS MG
66 P06/FL22 G16
RX-V496
1 RX-V496RDS
HTR-5240
1 HTR 5240RDS
DSP-R496
A,B,G,L 1 R,T
models 1 models
I / O Function
For
O Chip enable output
flash µ-COM
O Serial clock output
I Serial data input write
connector
O Serial data output
O Volume up output
O Volume down output
I Serial data input from DIR2
I DVD/LD coaxial/optical detect input
I Fixed H
I I (Over current) protection
detect input
I Rotary encoder input A
I Rotary encoder input B
I Stereo input from Tuner
I Serial data input from Tuner
O Initial clear output for AC3D2av
O Power relay output
O Speaker relay output
O Effect relay output
O Grid 1 for FL display
O Grid 2 for FL display
O Grid 3 for FL display
O Grid 4 for FL display
O Grid 5 for FL display
O Grid 6 for FL display
O Grid 7 for FL display
O Grid 8 for FL display
O Grid 9 for FL display
O Grid 10 for FL display
O Grid 11 for FL display
O Grid 12 for FL display
O Grid 13 for FL display
O Grid 14 for FL display
+5V power supply
O Grid 15 for FL display
Ground
O Grid 16 for FL display