Marantz SR-19EX, Service Manual

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Q601:YSS912
CPO
XO
XI
SDOB0 SDOB1 SDOB2 SDWCK1 SDBCK1
OPORT0 7
IPORT0 7
SO
SI
SCK
/CS
OVFB
RAMA0
16
RAMOEN
RAMWEN
RAMCEN
RAMD0 7
SDIB2
SDIB1
SDIB0
SDOA2
SDOA1
SDOA0
Delay RAM
SDIASEL
SDIA1 SDIA0
SDWCK0
SDBCK0
/SDBCK0
/CSB
SCK
SI
SDOACKSEL
SDIBCKSEL
SDOBCKSEL
Operating clock
(30MHz)
CRC
ERAMUSE
SDOB Interface
24 * 16
Sub DSP
SDIB Interface
SDOA Interface
SDIBSEL
SDIA Interface
24 * 24
Main DSP
AC-3/Pro Logic/DTS
Data RAM
ExternalRAM
Interface
Coefficient /
Program RAM
STREAM 0
7
PLL
L, R
LS, RS
C, LFE
SDOB3
SDIB3
SURENC
KARAOKE
MUTE
CRC
AC3DATA DTSDATA
NONPCM
Input Buffer
Decoder
Microprocessor
Interface
Control Registers
Control signals
Control signals
No. NAME I/O FUNCTION
1 VDD1 - +5V power supply (for I/Os)
2 RAMCEN O External SRAM Interface /CE
3 RAMA16 O External SRAM Interface address 16
4 RAMA15 O External SRAM Interface address 15
5 SDIB0 I+ PCM input 0 to Sub DSP
6 SDIB1 I+ PCM input 1 to Sub DSP
7 SDIB2 I+ PCM input 2 to Sub DSP
8 XI I Crystal oscillator connection or input external clock (12.288 MHz)
9 XO o Crystal oscillator connection
10 VSS - Ground
11 AVDD - +3.3V power supply (for PLL circuit)
12 SDIB3 I+ PCM input 3 to Sub DSP
13 TEST Test terminal (to be open in normal use)
14 TEST Test terminal (to be open in normal use)
15 OVFB O Detection of overflow at Sub DSP
16 DTSDATA O DTS data detection (Refer to "Status Register".)
17 AC3DATA O AC-3 data detection (Refer to "Status Register" .)
18 SDOB3 O PCM output from Sub DSP
19 CPO A Output terminal for PLL, to be connected to ground through the external analog filter circuit.
(Refer to "External Circuit for PLL" .)
20 AVSS - Ground (for PLL circuit)
21 VDD2 - +3.3V power supply (for core logic)
22 SDOA2 o PCM output from Main DSP (C, LFE)
23 SDOA1 O PCM output from Main DSP (LS, RS)
24 SDOA0 O PCM output from Main DSP (L, R)
25 RAMA14 O External SRAM Interface address 14
26 RAMA13 O External SRAM Interface address 13
27 RAMA12 O External SRAM Interface address 12
28 RAMA11 O External SRAM Interface address 11
29 RAMA10 O External SRAM Interface address 10
30 VSS - Ground
31 VDD1 - +5V power supply (for I/Os)
32 OPORT0 O Output port for general purpose. (Refer to " OPORT Register")
33 OPORT1 O Output port for general purpose. (Refer to " OPORT Register")
34 OPORT2 O Output port for general purpose. (Refer to " OPORT Register")
35 OPORT3 O Output port for general purpose. (Refer to " OPORT Register")
36 OPORT4 O Output port for general purpose. (Refer to " OPORT Register")
37 OPORT5 O Output port for general purpose. (Refer to " OPORT Register")
38 OPORT6 O Output port for general purpose. (Refer to " OPORT Register")
39 OPORT7 O Output port for general purpose. (Refer to " OPORT Register")
40 VSS - Ground
41 VDD2 - +3.3V power supply (for core logic)
42 RAMA9 O External SRAM interface address 9
43 RAMA8 O External SRAM interface address 8
44 RAMA7 O External SRAM interface address 7
45 SDOB2 O PCM output from Sub DSP
46 SDOB1 O PCM output from Sub DSP
47 SDOB0 O PCM output from Sub DSP
48 SDBCK1 I+ Bit clock input for SDOA, SDIB, SDOB. (Refer to " SDOA, SDIB, SDOB Register")
49 SDWCK1 I+ Word clock input for SDOA, SDIB, SDOB. (Refer to " SDOA, SDIB, SDOB Register")
50 VSS - Ground
No. NAME I/O FUNCTION
51 VDD2 - +3.3V power supply (for core logic)
52 NONPCM O Detection of non PCM data. (Refer to " Status Register")
53 CRC O Detection of AC-3 CRC error. (Refer to " Status Register")
54 MUTE O Detection of auto-mute. (Refer to " Status Register")
55 KARAOKE O Detection of AC-3 karaoke data. (Refer to " Status Register")
56 SURENC O Detection of AC-3 2/0 mode Dolby surround encoded input (Refer to " Status Register")
57 /SDBCK0 O Inverted SDBCKO clock output (refer to " Block diagram")
58 RAMA6 O External SRAM Interface address 6
59 RAMA5 O External SRAM Interface address 5
60 VSS - Ground
61 RAMA4 O External SRAM Interface address 4
62 /lC Is Initial clear
63 TEST Test terminal (to be open in normal use)
64 RAMA3 O External SRAM Interface address 3
65 /CSB Is+ Sub DSP Chip select
66 /CS Is Microprocessor interface Chip select
67 SO Ot Microprocessor interface Serial data output
68 SI Is Microprocessor interface/Sub DSP Serial data input
69 SCK Is Microprocessor interface/Sub DSP clock input
70 RAMA2 O External SRAM Interface address 2
71 VDD1 - +5V power supply (for I/Os)
72 RAMD0 I+/O External SRAM Interface data (STREAM 0 output when External SRAM is not in use)
73 RAMD1 I+/O External SRAM Interface data (STREAM 1 output when External SRAM is not in use)
74 RAMD2 I+/O External SRAM Interface data (STREAM 2 output when External SRAM is not in use)
75 RAMD3 I+/O External SRAM Interface data (STREAM 3 output when External SRAM is not in use)
76 RAMD4 I+/O External SRAM Interface data (STREAM 4 output when External SRAM is not in use)
77 RAMD5 I+/O External SRAM Interface data (STREAM 5 output when External SRAM is not in use)
78 RAMD6 I+/O External SRAM Interface data (STREAM 6 output when External SRAM is not in use)
79 RAMD7 I+/O External SRAM Interface data (STREAM 7 output when External SRAM is not in use)
80 VSS - Ground
81 VDD2 - +3.3V power supply (for core logic)
82 SDWCK0 I Word clock input for SDIA, SDOA, SDIB, SDOB (Refer to " SDIA, SDOA, SDIB, SDOB Register")
83 SDBCK0 I Bit clock input for SDIA SDOA SDIB SDOB (Refer to " SDIA, SDOA, SDIB, SDOB Register")
84 SDIA0 I AC-3/DTS bitstream (or PCM) data input for Main DSP (Refer to " SDIA Register")
85 SDIA1 I AC-3/DTS bitstream (or PCM) data input for Main DSP (Refer to " SDIA Register")
86 RAMA1 O External SRAM Interface address 1
87 RAMA0 O External SRAM Interface address 0
88 RAMWEN O External SRAM Interface /WE
89 RAMOEN O External SRAM Interface /OE
90 VSS - Ground
91 VDD2 - +3.3V power supply (for core logic)
92 IPORT7 I+ Input port for general purpose (Refer to " IPORT Register")
93 IPORT6 I+ Input port for general purpose (Refer to " IPORT Register")
94 IPORT5 I+ Input port for general purpose (Refer to " IPORT Register")
95 IPORT4 I+ Input port for general purpose (Refer to " IPORT Register")
96 IPORT3 I+ Input port for general purpose (Refer to " IPORT Register")
97 IPORT2 I+ Input port for general purpose (Refer to " IPORT Register")
98 IPORT1 I+ Input port for general purpose (Refer to " IPORT Register")
99 IPORT0 I+ Input port for general purpose (Refer to " IPORT Register")
100 VSS Ground
Note ) Is : Schmidt trigger input terminal
I+ : Input terminal with a pull-up resistor
O : Digital output terminal
Ot : Tri-state digital output terminal
A : Analog terminal
QL09, QZ11 : LC74781
49 50