Voltage - Mitsubishi Electric DY-2X64WT-2-TH Service Manual

VOLTAGE

MODEL : DY-2X64WT-2-TH
(Pin numbers are as measurement points.)
1. -COM : PD780076GK-699-9ET
IC801 (PCB-MAIN)
FM 98.1MHz/AM 999kHz, 30%MOD, VOL MIN
BATT, ACC 13.2V
Pin Voltage[V]
Pin sign Pin Name I/O ACT
No.
AM FM CD
1 P50/A8 EEPROM DO O H 0 0 0 EEPROM serial data output
2 P51/A9 EEPROM DI I H 0 0 0 EEPROM serial data input
3 P52/A10 EEPROM CLK O H 0 0 0 EEPROM serial clock output
4 P53/A11 EEPROM CE O H 0 0 0 EEPROM CE output
5 P54/A12 PLL/VOL CE O H 0 0 0 PLL/E-VOL communication CE terminal
6 P55/A13 PLL/VOL CLK O H 0 0 0 Serial clock output to PLL/E-VOL
7 P56/A14 PLL DATA IN I H 5 5 5 Serial data input from PLL-IC
PLL/VOL
8 P57/A15 O H 0 0 0 Serial data output to PLL/E-VOL
DATA OUT
9 VSS0 GND - - 0 0 0
10 VDD0 VDD - - 5 5 5
11 P30 ALL MUTE O H 0 0 0 MUTE output
12 P31 AUX ON O H 5 5 5 AUX ON output
13 P32 TEL ON O H 5 5 5 Telephone voice interrupt output
14 P33 CD ACC ON O H 0 0 0 CD-mecha ACC power supply ON output
15 P34/SI3/TxD2 CD D-STM I H 5 5 5 Serial data input from CD
16 P35/SO3/RxD2 CD D-MTS O L 0 0 5 Serial data output to CD
P36/_SCK3
17 CD D-CLK I H 5 5 5 Serial clock input from CD
/ASCK2
18 P20/SI1 M DATA IN I H 5 5 5 M-BUS data input
19 P21/SO1 M DATA OUT O H 5 5 5 M-BUS data output
20 P22/SCK1 M SCK I/O H 5 5 5 M-BUS clock in/output
21 P23/RxD0 FLASH IN I H 0 0 0 for FLASH WRITE
22 P24/TxD0 FLASH OUT I H 0 0 0 for FLASH WRITE
23 P25/ASCK0 TEST I H 5 5 5
24 VDD1 VDD - - 5 5 5
25 AVSS GND - - 0 0 0
26 P17/ANI7 GND - - 0 0 0
27 P16/ANI6 5 A/D KEY1 input
A/D KEY1 I - 5 5
28 P15/ANI5 A/D KEY2 I - 5 5 5 A/D KEY2 input
29 P14/ANI4 REMO I - 5 5 5 D/C REMO input
30 P13/ANI3 INIT-1 I - 5 5 5 Initial setting input (function change)
31 P12/ANI2 FM SM I - - - - FM electric field input
32 P11/ANI1 AM SM I - - - - AM/LW electric field input
2.PLL IC : LC72151VS
IC101 (PCB-MAIN)
FM 98.1MHz/AM 999kHz, 30%MOD, VOL MIN
BATT, ACC 13.2V
Pin
Pin sign Pin Name I/O ACT Voltage[V]
No.
2 I/O-1 O H 8.5
FM ON FM power supply ON
3 I/O-2 - O H - Not Used
5 O-3 - O H - Not Used
10 HCTR/I-3 IF COUNT I - 2.3
FM IF count input
11 LCTR/I-4 IF COUNT I - 0
MW/LW IF count input
ACC Pin Pin
Function Pin sign
OFF Function No.
L 33 P10/ANI0
Hi-z 34 AVREF
L 35 P80/_SS1
L 36 _RESET
Hi-z 37 XT2
Hi-z 38 XT1
Hi-z 39 IC(VPP)
40 X2
Hi-z
41 X1
- 42 VSS1
- 43 P00/INTP0
Hi-z (H) Nch 44 P01/INTP1
Hi-z (H) Nch 45 P02/INTP2
Hi-z (H) Nch P03/INTP3
46
Hi-z (H) Nch /ADTRG
Hi-z SI3 47 P70/TI000/TO00 ST/SD
Hi-z SO3 48 P71/TI010
49 P72/TI50/TO50
Hi-z SCK3
50 P73/TI51/TO51
Hi-z SI1 51 P74/PCL/TI011
H SO1 P75/BUZ/TI001
52
Hi-z SCK1 /TO01
Hi-z 53 P64/_RD
Hi-z 54 P65/_WR
Hi-z 55 P66/_WAIT
- 56 P67/ASTB
- 57 P40/AD0
- 58 P41/AD1
59 P42/AD2
- ANI6
- ANI5 60 P43/AD3
- ANI4 61 P44/AD4
- ANI3 62 P45/AD5
- ANI2 63 P46/AD6
- ANI1 64 P47/AD7
ACC Pin
Function
OFF Function
H Nch
L Nch
L Nch
- HCTR
- LCTR
Voltage[V]
Pin Name I/O ACT Function
AM FM CD
NOISE I - 5 5 5 Noise volume
VDD I - 5 5 5
AF MUTE O L 0 0 0 AF MUTE output
RESET I - 5 5 5
- - - - - - Not Used
- I - 5 5 5 Not Used
IC(VPP) I - 0 0 0
X2 - - - - - 4.332MHz
X1 I - - - - 4.332MHz
GND - - 0 0 0
ACC IN I H 0 0 0 ACC input
CHACK I H 5 5 5 CHACK input
RDS CLK I H 0 0 0 RDS clock input
M BUSY I/O H 5 5 5 M-BUS BUSY in/output
I H 5 5 5 ST(IFREQ OFF)/SD(IFREQ ON) input
IF REQ O H 5 5 5 IF request output
7kHz O H 0 0 0 Speaker check output
CD-EJ I H 5 5 5
ILL P.O O H 5 5 5
RDS QUAL I H 0 0 0 NO RDS detection input
RDS DATA I H 0 0 0 RDS data input
CD STM I H 5 5 5 CD communication request input
CD MTS O H 5 5 5 CD communication request output
CD MUTE IN I H 5 5 5 CD MUTE input
PANEL O H 5 5 5 PANEL OUT output
ACC ON O H 5 5 5 ACC ON output
5 BATT input
BATT IN I H 5 5
POWER ON O H 5 5 5 Power IC standby output
TEL MUTE I H 5 5 5 TEL-MUTE input
POWER KEY I H 5 5 5 POWER KEY input
VOL IN A I H 5 5 5 Encoder VOL input
VOL IN B I H 5 5 5 Encoder VOL input
28
3.ELE-VOL IC 4.POWER IC
IC301 PCB-MAIN IC3A1 PCB-MAIN
FM 83MHz, 30%MOD, VOL MIN FM 83MHz, 30%MOD, VOL MIN
BATT, ACC 13.2V BATT, ACC 13.2V
( ) : reference value - : unsettled
(communication wave)
ACC Pin Pin Voltage Pin
Pin Name
OFF Function No. [V] No.
- 1 RESLO 4.6 1 BEEP
- 2 RVRIN 4.6 2 P-GND
L 3 RCT 4.6 3 FR-
- 4 RCOM 4.6 4 STBY
- 5 RVROUT 4.6 5 FR+
- 6 RTIN 4.6 6 VCC1
- 7 RF1C1 4.6 7 RR-
- 8 RF1C2 0 8 P-GND
- 9 RF1C3 4.6 9 RR+
- 10 RF3C1 4.6 10 Ref
Hi-z INTP0 11 RTOUT 4.6 11 RR-IN
Hi-z 12 RFIN 4.6 12 FR-IN
Hi-z INTP2 13 RFOUT 4.6 13 S-GND
14 RROUT 4.6 14 FL-IN
Hi-z INTP3
15 TIM 0 15 RL-IN
Hi-z 16 TEST 0 16 ON TIME C
H 17 CE (0) 17 RL+
L TO50 18 DI (0) 18 P-GND
Hi-z 19 CL 5.1 19 RL-
L 20 VSS 0 20 VCC2
21 LROUT 4.6 21 FL+
Hi-z
22 LFOUT 4.6 22 MUTE
Hi-z 23 LFIN 4.6 23 FL-
Hi-z 24 LTOUT 4.6 24 P-GND
Hi-z 25 LF3C1 4.6 25 CLIP
Hi-z 26 LF1C3 4.6
L 27 LF1C2 0
5.POWER SUPPLY,
L 28 LF1C1 4.6
29 LTIN TUNER VT TERMINAL
Hi-z 4.6
L 30 LVROUT 4.6
Hi-z 31 LCOM 4.6
Hi-z 32 LCT 4.6
Hi-z 33 LVRIN 4.6
Hi-z 34 LSELO 4.6
35 L4 4.6
36 L3 4.6
37 L2 4.6
38 L1 4.6
39 VCC 8.6
40 VREF 4.6
41 R1 4.6
42 R2 4.6
43 R3 4.6
44 R4 4.6
FE1 PCB-MAIN
AM
FM
Voltage
Pin Name
[V]
3.1
0
2.8
4.8
2.8
13.2
2.8
0
2.8
12.0
3.1
3.1
0
3.1
3.1
2.4
2.8
0
2.8
13.2
2.8
4.0
2.8
0
-
BATT, ACC, ILL 13.2V
(E):Emitter,(C):Collector
[V]
BATT 5V
Q911(E) 5.2
ACC 5V
Q922(C) 5.0
ACC 9V
Q901(E) 8.5
ILL ON
Q971(E) 8.8
9pin(AM)
4pin(FM)
BATT, ACC 13.2V
VT
531kHz 1629kHz
2.0 4.6
VT
87.5MHz 108.0MHz
1.3 7.0