Marantz 74 CD7, Руководство по обслуживанию

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5 6
QF01
: µ : µ
: µ : µ : µ
PD78076 MAIN
SYMBOL PIN PADCELL DESCRIPTION
RC
fil
1 E029 PLL loop filter input
V
ref
2 E029 decoupling internal reference voltage output
V
DDA
3 E008 analog supply voltage
V
SSA
4 E004 analog ground
IECIN1 5 E007 high sensitivity IEC input
IECIN0 6 IPP04 TTL level IEC input
IECSEL 7 IUP04 select IEC input 0 or 1 (0 = IECIN0; 1 = IECIN1); this input has an internal pull-up
resistor
IECO 8 OPFH3 digital audio output for optical and transformer link
IECOEN 9 IUP04 digital audio output enable (0 = enabled; 1 = disabled/3-state); this input has an
internal pull-up resistor
TESTB 10 IPP04 enable factory test input (0 = normal application; 1 = scan mode)
TESTC 11 IPP04 enable factory test input (0 = normal application; 1 = observation outputs)
UNLOCK 12 OPP41A PLL out-of-lock (0 = not locked; 1 = locked); this output can drive an LED
FS32 13 OPP41A indicates sample frequency = 32 kHz (active LOW); this output can drive an LED
FS44 14 OPP41A indicates sample frequency = 44.1 kHz (active LOW); this output can drive an LED
FS48 15 OPP41A indicates sample frequency = 48 kHz (active LOW); this output can drive an LED
CHMODE 16 OPP41A use of channel status block (0 = professional use; 1 = consumer use); this output
can drive an LED
V
DDD2
17 E008 digital supply voltage 2
V
SSD2
18 E009 digital ground 2
RESET 19 IDP09 initialization after power-on, requires only an external capacitor connected to V
DDD
;
this is a Schmitt-trigger input with an internal pull-down resistor
PD 20 IPP04 enable power-down input in the standby mode (0 = normal application; 1 = standby
mode)
CTRLMODE 21 IUP04 select microcontroller/stand-alone mode (0 = microcontroller; 1 = stand-alone); this
input has an internal pull-up resistor
LADDR 22 IPP04 microcontroller interface address switch input (0 = 000001; 1 = 000010)
LMODE 23 IPP09 microcontroller interface mode line input
LCLK 24 IPP09 microcontroller interface clock line input
LDATA 25 IOF24 microcontroller interface data line input/output
STROBE 26 IDP04 strobe for control register (active HIGH); this input has an internal pull-down resistor
UDAVAIL 27 OPF23 synchronization for output user data (0 = data available; 1 = no data)
TESTA 28 IPP04 enable factory (scan) test input (0 = normal application; 1 = test clock enable)
COPY 29 OPP41A copyright status bit (0 = copyright asserted; 1 = no copyright asserted); this output
can drive an LED
INVALID 30 IOD24 validity of audio sample input/output (0 = valid sample; 1 = invalid sample); this pin
has an internal pull-down resistor
DEEM 31 OPF23 pre-emphasis output bit (0 = no pre-emphasis; 1 = pre-emphasis)
MUTE 32 IUP04 audio mute input (0 = permanent mute; 1 = mute on receive error); this pin has an
internal pull-up resistor
I
2
SSEL 33 IUP04 select auxiliary input or normal input in transmit mode
SDAUX 34 IPP04 auxiliary serial data input; I
2
S-bus
SD 35 IOF24 serial audio data input/output; I 2 S-bus
WS 36 IOF24 word select input/output; I 2 S-bus
SCK 37 IOF29 serial audio clock input/output; I 2 S-bus
I
2
SOEN 38 IUP04 serial audio output enable (0 = enabled; 1 = disabled/3-state); this input has an
internal pull-up resistor
SYSCLKI 39 IPP09 system clock input (transmit mode)
SYSCLKO 40 OPFA3 system clock output (receive mode)
V
SSD1
41 E009 digital ground 1
V
DDD1
42 E008 digital supply voltage 1
CLKSEL 43 IUP04 select system clock (0 = 384f
s
; 1 = 256f
s
); this input has an internal pull-up resistor
RC
int
44 E029 integrating capacitor output
Q507/Q509 : DSP56004
QD03/QD53 : TDA1541A/S2
Q304 : TDA1315H
Pin No. Port Name Function In/Out Active To/From Description
1 STRB P120 Out High Q304 Strobe signal for control resister for Q304(TDA1315H)
2 LMOD P121 Out Low Q304 Interface mode line for Q304(TDA1315H)
3 OPEN P122 -----
4 GND P123 GND GND
5 FS32 P124 In Low Q304 Sampling frequency input (L = 32KHz Receiving)
6 FS48 P125 In Low Q304 Sampling frequency input (L = 48KHz Receiving)
7 COAX/OPT P126 Out Low Q304 Digital input select signal (L = Optical , H = Coaxal)
8 DMUT P127 Out Low Q304 Digital muting control signal for Q304(TDA1315H)
9 GND IC GND GND
10 5MHzXTAL X2 XF01 Clock out (5MHz)
11 5MHzXTAL X1 XF01 Clock in (5MHz)
12 +5V Vdd +5V Power 5V
13 OPEN XT2 --- -----
14 +5V XT1 +5V Power 5V
15 REST RESET In Low QF02 Reset signal input for QF02
16 RC5I INTP0 In ZY01 Remote control signal input for ZY01
17 OPEN INTP1 --- -----
18 CD7R P02 Out Low Q102 CD7 Reset signal for Q102(SAA7372GP)
19 SILD P03 Out Low Q102 Strobe signal for servo part of Q102(SAA7372GP)
20 RAB7 P03 Out Low Q102 Strobe signal for digital part of Q102(SAA7372GP)
21 LOCK INTP5 In Low Q304 Unlock signal of Q304(TDA1315H)
22 MSCP INTP6 In Low GND GND
23 +5V Avdd +5V Power 5V
24 +5V Avref0 In +5V Power 5V
25 KEY0 ANI0 In Level Tact Switch Key Sensor
26 KEY1 ANI1 In Level Tact Switch Key Sensor
27 KEY2 ANI2 In Level Tact Switch Key Sensor
28 GND ANI3 GND GND
29 MUTE ANI4 Out High Q507 Mute signal for DSP Q507(DSP56004)
30 PAUS ANI5 Out High Q507 Mute of pause on time for DSP Q507(DSP56004)
31 OPEN ANI6 (CD7L) -----
32 RELY2 ANI7 Out High QY51 Display on/off control signal (L = off , H = on)
33 GND Avss GND GND
34 OPEN P130 In/Out --- -----
35 OPEN P131 Out --- -----
36 +5V Avref In +5V Power 5V
37 STRD P70 Out Low QY01 Strobe signal for QY01
38 SIOD SO2 Out QY01 Serial data for QY01
39 CLKD SCK2 Out Low QY01 Serial clock for QY01
40 GND Vss GND GND
41 OPEN SI1 In --- -----
42 OPEN SO1 --- -----
43 OPEN SCK1 --- -----
44 OPEN P23 -----
45 OPEN P24 --- -----
46 OPEN SB0 -----
47 OPEN SB1 In/Out --- -----
48 SDA SCK0 Out Q102/Q304 Serial data signal for Q102/Q304
49 SCL A0 Q102/Q304 Serial clock signal for Q102/Q304
50 OPEN A1 --- -----
51 OPEN A2 --- -----
52 OPEN A3 --- -----
53 OPEN A4 --- -----
54 OPEN A5 --- -----
55 OPEN A6 --- -----
56 OPEN A7 --- -----
57 GND D0 GND
58 GND D1 GND
59 GND D2 GND
60 GND D3 GND
61 GND D4 GND
62 GND D5 GND
63 GND D6 GND
64 GND D7 GND
GND
GND
GND
GND
GND
GND
GND
GND
65 OPEN A8 --- -----
66 OPEN A9 --- -----
67 OPEN A10 --- -----
68 OPEN A11 --- -----
69 OPEN A12 --- -----
70 OPEN A13 --- -----
71 GND Vss GND GND
72 OPEN A14 (RA12) -----
73 RA11 A15 Out High Q506 Audio data select signal output (L = 16Bit)
74 16WD P60 In Low GND Audio data select signal input (L = 16Bit)
75 FMUT P61 Out High QN05 Mute of switching on time killer
76 RSD2 P62 Out Low Q309,Q509 Reset of Q309,Q509
77 RSD1 P63 Out Low Q507 Reset of Q507
78 NSSH RD Out Low Q508,QY10 Noise shaper on/off signal (L = on , H = off)
79 FIL3 WR Out High Q508,QY09 Filter 3 select signal (H = select of filter 3)
80 FIL2 P66 Out High Q508,QY08 Filter 2 select signal (H = select of filter 2)
81 FIL1 P67 Out High QY07 Filter 1 select signal (H = select of filter 1)
82 OPTI P100 In High Q303 Optical input select ( H = OPT , L = COAX1)
83 OPEN TO6 --- -----
84 OPEN P102 --- -----
85 RELY1 P103 Out High D301 Audio muting control signal of poer on/off(H=mute on)
86 MSL1 P30 In High High Level -----
87 MSL2 P31 In Low GND Level -----
88 OPEN P32 --- -----
89 CDRW P33 Out High NC -----
90 SLSW P34 In Low VAM1201 Sledge detect switch (L = in end)
91 TROS P35 In Low TRAY Tray in/out detect switch (L = out end)
92 TRIS P36 In Low TRAY Tray in/out detect switch (L = in end)
93 TRUS P37 In Low TRAY Tray up/down detect switch (L = up end)
94 TRDS P90 In Low TRAY Tray up/down detect switch (L = down end)
95 TROM P91 Out High QM10 Tray motor control signal (H = tray out)
96 TRIM P93 Out High QM09 Tray motor control signal (H = tray in)
97 TRDM P94 Out High QM12 Tray motor control signal (H = tray down)
98 TRUM P95 Out High QM11 Tray motor control signal (H = tray up)
99 AMUT P95 Out Low NC -----
100 DA/CD P96 Out Low Q504 Mode select (L = D/A Mode , H = CD Mode)
---
---
PINNING
Note
1. See Table 1 data selection input.
SYMBOL PIN DESCRIPTION
LE/WS (1)
1
latch enable input/ word select
input
BCK (1) 2 bit clock input
DATA L
/DATA
(1)
3
data left channel input/ data
input (selected format)
DATA R (1) 4 data right channel input
GND(A) 5 analog ground
AOR 6 right channel output
DECOU 7 to 13 decoupling
GND (D) 14 digital ground
V
DD2
15
−
15 V supply voltage
COSC 16,17 oscillator
DECOU 18 to 24 decoupling
AOL 25 left channel output
V
DD1
26
−
5 V supply voltage
OB/TWC (1) 27 mode select input
V
DD
28 +5 V supply voltage
Y Data
Memory*
X Data
Memory*
Program
Memory*
Program Control Unit
24-Bit
DSP56000
Core
OnCETM Port
PLL
Clock
Gen.
4 9 5 29
16-Bit Bus
24-Bit Bus
Interrupt
Control
4
IRQA , IRQB, NMI, RESET
4 3
Address
Generation
Unit
PAB
XAB
YAB
GDB
PDB
XDB
YDB
General
Purpose
Input/
Output
External
Memory
Interface
(EMI)
Serial
Audio
Interface
(SAI)
Serial
Host
Interface
(SHI)
*Refer to Table 1 for memory configurations.
Internal
Data
Bus
Switch
Program
Decode
Controller
Program
Address
Generator
Data ALU
24
×
24 + 56
→
56-bit MAC
Two 56-Bit Accumulators
MA0ÐMA14
MD0ÐMD7
MWR
MA17/MCS1/MRAS
MA16/MCS2/MCAS
GND
Q
V
CCQ
RESET
MODA/IRQA
MODB/IRQB
MODC/NMI
SS/HA2
MISO/SDA
SCK/SCL
GND
S
V
CCS
WSR
SCKR
SDI0
DSCK/OS1
DSI/OS0
DSO
DR
OnCEª
Port C
Port B
Port A
External Memory
Mode/Interrupt
80 signals
Serial Host
Rec0
SDO1 Tran1
WST
SCKT
SDO0 Tran0
Interface
MRD
MCS0
Serial Audio
Interface
Interface
MOSI/HA0
SDO2 Tran2
SDI1
Rec1
GPIO0ÐGPIO3 GPIO
HREQ
V
CCP
GND
P
PCAP
PLL
PINIT
MA15/MCS3
EXTAL
GND
A
V
CCA
GND
D
V
CCD
Reset
Port
Power Inputs
Ground
Control
2
2
3
3
4
2
3
8
4
15
DSP56004