Yamaha RX-V595 Service Manual page 29

IC800 : LC87F65C8A (LC876564A-5K19)
µ
8 bit -COM
Pin Pin
Port I/O
No. Name
51 VP VP
52 S20/PC4 P5 O FL Segment 5
53 S21/PC5 P6 O FL Segment 6
54 S22/PC6 P7 O FL Segment 7
55 S23/PC7 P8 O FL Segment 8
56 S24/PD0 P9 O FL Segment 9
57 S25/PD1 P10 O FL Segment 10
58 S26/PD2 P11 O FL Segment 11
59 S27/PD3 P12 O FL Segment 12
60 S28/PD4 P13 O FL Segment 13
61 S29/PD5 P14 O FL Segment 14
62 S30/PD6 P15 O FL Segment 15
63 S31/PD7 P16 O FL Segment 16
64 S32/PE0 P17 O FL Segment 17
65 S33/PE1 P18 O FL Segment 18
66 S34/PE2 P19 O FL Segment 19
67 S35/PE3 P20 O FL Segment 20
68 S36/PE4 P21 O FL Segment 21
69 S37/PE5 P22 O FL Segment 22
70 S38/PE6 RDS SELECT I Mode check RDS
71 S39/PE7
72 VDD4 VDD4
73 S40/PF0
74 S41/PF1 EFFECT-RY O Effect relay
75 S42/PF2 SP-RY O Speaker relay
∗2 Model check
• Model check to the order of DSP, RDS, V595.
Hi = 1, Low = 0
Model
DSP
Check
0
RDS SELECT
1
DSP-A.SEL
Function
Unconnected
Power supply
Unconnected
RDS V595
1 0
0 0
Pin Pin
Port
No. Name
76 S43/PF3 POWER-RY O Power relay
77 S44/PF4 –10dB
78 S45/PF5 /VCR
79 S46/PF6
80 S47/PF7 STANDBY-SW I Standby / on (H : ON)
81 S48/PG0 ROTARY-A I Rotary encoder A
82 S49/PG1 ROTARY-B I Rotary encoder B
83 S50/PG2 DSP-A.SEL I Mode check DSP-A
84 S51/PG3
85 P00 VOL.DN
86 P01 VOL.UP
87 P02 V-SEL1
88 P03 V-SEL2
89 VSS2 VSS2
90 VDD2 VDD2
91 P04 CE-INPUT O Chip enable for INPUT
92 P05 CE-VR
93 P06 CE-TUNER O Chip enable for TUNER
94 P07 /CERDS
∗2
95 P10/SO0 V1/RDS-DATA O RDS data V1 market
96 P11/SI0 V2/RDS-DATA O RDS data V2 market
97 P12/SCK0 RDS-CLK O Clock for RDS
98 P13/SO2 SDT
99 P14/SI1 TUN-SIN
100 P15/SCK1 SCK
∗3 Video selector 1 and 2
Video Selector 1(VSEL0) 2(VSEL1)
V-AUX
VCR
DVD/LD
TV/DBS
∗4 Markets
Market J
V1 0
V2 0
RX-V595/R-V905/RX-V595RDS
I/O Function
O –10 dB select (L : –10dB)
O VCR select inhibit (H : inhibit)
Unconnected
O Volume down
O Volume up
O Video selector 1
O Video selector 2
Ground
Power supply
O Chip enable for VOLUME
O Chip enable for RDS
O Serial data
I Serial data from Tuner
O Serial clock
Hi = 1, Low = 0
0 0
1 0
0 1
1 1
Hi = 1, Low = 0
U, C A, G, L R
0 1 1
1 0 1
∗2
∗3
∗3
∗4
∗4
28