Block Diagram; Microprocessor Data - Marantz MR2020 Service Manual

4-1 BLOCK DIAGRAM

AM STEREO
F ONLY
+8V,+5V
CD BOARD NAMI 8
CD UNIT CD94V5B1
HF AMP
DECODER/
TDA1300T
SPINDLE U-COM
MOTOR
SAA7372
PICK UP
FOCUS
SERVO
TRACK DRIVER
TDA7073AT
SLED
DAC
MOTOR
SERVO
DRIVER
TDA7073AT
DISC
SENSOR(CD)
SUPPLY
+10V PQ30RV2 PQ05RF2
U-COM
+21V 2SA1307
U-COM 7808
+20V PQ12RF2
U-COM
4-1
AUX LINE SUB
ANT.
IN OUT W.F
TUNER 95
BUFFER BUFFER
ECO 5 NJM4558 NJM4558
RDS
/02 ONLY
ANALOG
I2C
+5V
MAIN U-COM
+5V(CD)
A/D INPUT
+5V(U-COM)
+9.3V(POWER AMP)
PANEL
DRIVE
IC
+8V(CD)
+12V(PANEL MOTOR)
PANEL
ON TOP
OPN/CLS
KEY
-26V(FL)
F1(FL)
F2(FL)
POWER
E.Q AMP
AN7125
PRE AMP H.P AMP
TE6321
NJM4556
R.C
RC5
PANEL
PHOTO
SENSOR
DISPLAY
FL
FL
DRIVER
M
TEMP
DETECT
FAN
MOTOR
BOTTOM
KEY
4-1

4-3 MICROPROCESSOR DATA

Pin No. Pin Name Signal Name
1 P10 (INT0) _POW_DWN
2 P11 (INT1) _STANDBY
3 P12 (INT2) SDA
4 P13 (DVO) SCL
5 P14 DSC_MUTE
6 P15 _CD_STANDBY
7 P16 _MUTE2
S.P 8 P17 *
9 TEST -
10 P21 (XTIN) 32.768kHz
11 P22 (XTOUT) 32.768kHz
12 RESET _RESET
13 XIN 8.0MHz
14 XOUT 8.0MHz
15 VSS -
16 P20 (INT5) _HOLD
17 P30 (INT3) _RCIN
H.P(SW) 18 P31 _RCOUT
19 P32 (SCK) TUNE_CLK
20 P33 (SI) _TUNE_WE
21 P34 (SO) TUNE_SDA
22 P35 (HSCK) TUNER_ST_M ON
23 P36 CD7_RESET
24 P37 (HSO) DISC_IN
25 P00 SILD
26 P01 RAB
27 P02 SCL
28 P03 SDA
29 P04 P_SEN_IN
30 P05 P_SEN_OUT
31 P06 P_MOTOR_P
32 P07 P_MOTOR_N
33 VDD +5V
34 P60 (G15) *
35 P61 (G14) *
36 P62 (G13) AMPON
37 P63 (G12) MUTE
38 P64 (G11) _RDS_ON
39 P65 (G10) 11G
40 P66 (G9) 10G
Pin No. Pin Name Signal Name
41 P67 (G8) 9G
42 P70 (G7) 8G
43 P71 (G6) 7G
44 P72 (G5) 6G
45 P73 (G4) 5G
46 P74 (G3) 4G
47 P75 (G2) 3G
48 P76 (G1) 2G
49 P77 (G0) 1G
50 P80 (S0) P16
51 P81 (S1) P15
52 P82 (S2) P14
53 P83 (S3) P13
54 P84 (S4) P12
55 P85 (S5) P11
56 P86 (S6) P10
57 P87 (S7) P9
58 P90 (S8) P8
59 P91 (S9) P7
60 P92 (S10) P6
61 P93 (S11) P5
62 P94 (S12) P4
63 P95 (S13) P3
64 P96 (S14) P2
65 P97 (S15) P1
66 VKK -B
67 P40 (KEY0) Key0
68 P41 (KEY1) Key1
69 P42 (KEY2) Key2
70 P43 (KEY3) Key3
71 P44 (KEY4) Key4
72 P45 (KEY5) Key5
73 P46 (KEY6) Key6
74 P47 (KEY7) Key7
75 P50 (A/D) _DAVN
76 P51 (A/D) _PSWN
77 P52 (A/D) _P_OPEN
78 P53 (A/D) _P_CLOSE
79 P54 VER_SET0
80 P55 VER_SET1
I/O Active Slow Function
INT L POWER DOWN
OUT L L POWER STANDBY
IN/OUT - IIC SDA(for RDS,DSC)
OUT H L IIC SCL(for RDS,DSC)
OUT L L DSC MUTE
OUT L L CD STANDBY
OUT L L LINE MUTE
IN - - N.C
IN - - GND
IN - - SUB X-TAL
OUT - - SUB X-TAL
IN L - RESET
IN - - X-TAL
OUT - - X-TAL
GND - - GND
IN L - HOLD IN
INT - RC-5 BUS IN
OUT L L RC-5 BUS OUT
OUT H L TUNER CLK
OUT L - TUNER WRITE ENABLE
IN/OUT H L TUNER SDA
IN H L TUNER STEREO/MONO
OUT L L CD7 RESET
IN H - DISC IN SENSOR
OUT L L CD7 CONTROL
OUT H L CD7 CONTROL
OUT H L CD7 CONTROL
IN/OUT H L CD7 CONTROL
IN H - PANEL SENSOR IN
OUT H L PANEL SENSOR OUT
OUT H L PANEL MOTOR +
OUT H L PANRL MOTOR -
+5VS - - VDD
IN - - N.C
IN - - N.C
OUT H L AMP POWER ON
OUT H L MUTE
OUT H L RDS_POWER
OUT H - DIGIT OUT
OUT H - DIGIT OUT
I/O Active Slow Function
OUT H - DIGIT OUT
OUT H - DIGIT OUT
OUT H - DIGIT OUT
OUT H - DIGIT OUT
OUT H - DIGIT OUT
OUT H - DIGIT OUT
OUT H - DIGIT OUT
OUT H - DIGIT OUT
OUT H - DIGIT OUT
OUT H - SEGMENT OUT
OUT H - SEGMENT OUT
OUT H - SEGMENT OUT
OUT H - SEGMENT OUT
OUT H - SEGMENT OUT
OUT H - SEGMENT OUT
OUT H - SEGMENT OUT
OUT H - SEGMENT OUT
OUT H - SEGMENT OUT
OUT H - SEGMENT OUT
OUT H - SEGMENT OUT
OUT H - SEGMENT OUT
OUT H - SEGMENT OUT
OUT H - SEGMENT OUT
OUT H - SEGMENT OUT
OUT H - SEGMENT OUT
- - - Power Supply for FL
IN H - Key0
IN H - Key1
IN H - Key2
IN H - Key3
IN H - Key4
IN H - Key5
IN H - Key6
IN H - Key7
IN L - RDS DAVAN
IN L - RDS PSWN
IN L - PANEL SW OPEN
IN L - PANEL SW CLOSE
IN - - 0:J 1:U10 0:U 09 1EU
:F :U :K,KK : /2
IN - - 0: 0: 1: 1: