Yamaha RX-V496 Service Manual page 32

RX-V496/RX-V496RDS/HTR-5240/HTR-5240RDS
IC4 : YSS918D-F (AC3D2av)
DSP + AC-3(Dolby Digital)/ Pro Logic/ DTS Digital Surround Decoder
No. Name I/O
1 VDD1
2 RAMCEN O
3 RAMA16 O
4 RAMA15 O
5 SDIB0 I
6 SDIB1 I
7 SDIB2 I
8 XI I
9 XO O
10 VSS
11 AVDD
12 SDIB3 I
13 TEST
14 TEST
15 OVFB O
16 DTSDATA O
17 AC3DATA O
18 SDOB3 O
19 CPO O
20 AVSS
21 VDD
22 SDOA2 O
23 SDOA1 O
24 SDOA0 O
25 RAMA14 O
26 RAMA13 O
27 RAMA12 O
28 RAMA11 O
29 RAMA10 O
30 VSS
31 VDD1
32 OPORT0 O
33 OPORT1 O
34 OPORT2 O
35 OPORT3 O
36 OPORT4 O
37 OPORT5 O
38 OPORT6 O
39 OPORT7 O
40 VSS
41 VDD2
42 RAMA9 O
43 RAMA8 O
44 RAMA7 O
45 SDOB2 O
46 SDOB1 O
47 SDOB0 O
48 SDBCK1 I
49 SDWCK1 I
50 VSS
* Digital input
Selector Control
(H=High, L=Low)
31
+5V power supply
RAM chip enable output terminal (normally unconnected)
RAM address output terminal 16, connected to external 1M SRAM address
RAM address output terminal 15, connected to external 1M SRAM address
Serial data input B terminal 0 (normally connected to ground)
Serial data input B terminal 1 (normally connected to ground)
Serial data input B terminal 2 (normally connected to ground)
Crystal oscillator connection or external clock input terminal, connected to external DIR2 external clock output
Crystal oscillator connection (normally unconnected)
Ground
+3V power supply
Serial data input B terminal 3 (normally unconnected)
Test terminal (normally unconnected)
Test terminal (normally unconnected)
Overflow detect terminal (normally unconnected)
DTS data detect terminal (normally unconnected)
AC-3 data detect terminal (normally unconnected)
Serial data output B terminal 3 (normally unconnected)
PLL output terminal (connected to AVSS through external analog filter)
Ground
+3V power supply
Serial data output A terminal 2 (normally unconnected)
Serial data output A terminal 1 (normally unconnected)
Serial data output A terminal 0 (normally unconnected)
RAM address terminal 14 output terminal, connected to external 1M SRAM address
RAM address terminal 13 output terminal, connected to external 1M SRAM address
RAM address terminal 12 output terminal, connected to external 1M SRAM address
RAM address terminal 11 output terminal, connected to external 1M SRAM address
RAM address terminal 10 output terminal, connected to external 1M SRAM address
Ground
+5V power supply
Output expansion port terminal 0, digital input selector A output
Output expansion port terminal 1, digital input selector B output (DIB*)
Output expansion port terminal 2, connected to external CODEC initial clear input
Output expansion port terminal 3, connected to external DIR2 compulsive analog performance mode input
Output expansion port terminal 4, connected to external DIR2 initial clear input
Output expansion port terminal 5 (normally unconnected)
Output expansion port terminal 6 (normally unconnected)
Output expansion port terminal 7 (normally unconnected)
Ground
+3V power supply
RAM address output terminal 9 , connected to external 1M SRAM address
RAM address output terminal 8 , connected to external 1M SRAM address
RAM address output terminal 7 , connected to external 1M SRAM address
Serial data output B terminal 2, connected to external CODEC PCM audio data output
Serial data output B terminal 1, connected to external CODEC PCM audio data output
Serial data output B terminal 0, connected to external CODEC PCM audio data output
Serial data bit clock input terminal 1, connected to external DIR2 64fs bit clock output
Serial data word clock input terminal 1, connected to external DIR2 1fs word clock output
Ground
Digital Input DIB(Pin33)
DVD/LD L
SAT/D-TV H
Function