VOLTAGE
MODEL : RX-1MX8-T,-MT-T
(Pin numbers are as measurement points.)
1. -COM
2. ELE VOL IC
3. POWER-IC
IC801 PCB-MAIN
IC301 PCB-MAIN
IC8B1 PCB-MAIN
AM : No signal, 999kHz FM : No signal, 98.1MHz TAPE : Play
AM
FM
TAPE
AM
FM
TAPE
1 A/D KEY
A/D key input
I
5.0
5.0
5.0
G-mecha tape-end detection input
1 RSEL0
4.7
1 AUX-IN
3.1
2 -
Not used
I
0.0
0.0
0.0
(R scan)
2 RVRIN
4.7
2 P-GND
0.0
3 -
Not used
I
0.0
0.0
0.0
G-mecha pack IN (L:PACK IN)
3 RCT
4.5
3 FR(-)
2.8
4 -
Not used
I
0.0
0.0
0.0
/ Metal detection input (H:METAL)
4 RCOM
4.5
4 STBY
4.7
5 S-MT-AM
AM S-meter input
I
0.0
0.0
0.0
G-mecha mode SW input 3
5 RVROUT
4.7
5 FR(+)
2.8
6 S-MT-FM
FM S-meter input
I
0.0
0.0
0.0
/ FF mute output (H:MUTE ON)
6 RTIN
4.7
6 VCC1
13.1
7 -
Not used
O
0.0
0.0
0.0
G-mecha mode SW input 2
7 RF1C1
4.7
7 RR(-)
2.8
Serial data output for electronic VOL/LCD
/ Play output (L:PLAY)
8 RF1C2
0.0
8 P-GND
0.0
driver (H:ACT)
G-mecha mode SW input 1
9 RF1C3
4.7
9 RR(+)
2.8
Serial clock output for electronic VOL/LCD
/ Dolby ON output (H:DOLBY ON)
10 RF2C1
4.5
10 REF
11.9
driver (H:ACT)
G-mecha mode SW input 0
11 RTOUT
4.7
11 RR-IN
3.0
10 VOL-CE
CE output for electronic VOL (H:ACT)
O
0.0
0.0
0.0
/ Metal ON output (H:METAL)
12 RFIN
4.5
12 FR-IN
3.1
11 M-DATA-IN
M-BUS serial data input
I
5.0
5.0
5.0
G-mecha power supply output
13 RFOUT
4.7
13 S-GND
0.0
12 M-DATA-OUT
M-BUS serial data output
I/O
5.0
5.0
5.0
(H:power supply ON)
14 RROUT
4.7
14 FL-IN
3.1
13 M-SCK
M-BUS serial clock in/output
I/O
5.0
5.0
5.0
G-mecha main motor power supply output
15 TIM
0.0
15 RL-IN
3.0
14 -
Not used
O
0.0
0.0
0.0
(H:power supply ON)
16 TEST
0.0
16 ON TIME C
2.4
15 AM-ON
AM power supply output (L:ON)
O
0.0
0.0
0.0
G-mecha power motor directional control
17 V-CE
0.0
17 RL(+)
2.8
16 FM-ON
FM power supply output (L:ON)
O
8.3
0.0
0.0
output (H:ACT)
18 V-DATA
0.0
18 P-GND
0.0
17 IC-MUTE
Power-IC mute output (L:Mute ON)
O
4.0
5.0
4.0
G-mecha power motor directional control
19 V-CLK
5.0
19 RL(-)
2.8
18 ALL-MUTE
All mute output (L:Mute ON)
O
5.0
5.0
5.0
output (H:ACT)
20 VSS
0.0
20 VCC2
13.1
19 P-ON
Power supply output (H:ON)
O
5.0
5.0
5.0
57 200Hz/60Hz
Speaker diagnosis (200/60Hz pulse output)
O
0.0
0.0
0.0
21 LROUT
4.7
21 FL(+)
2.8
ANT power supply output
Speaker diagnosis
22 LFOUT
4.7
22 MUTE
4.1
(H:Antenna power supply ON)
(H:7kHz oscillation circuit ON)
23 LFIN
4.5
23 FL(-)
2.8
21 GND
GND
-
0.0
0.0
0.0
59 BEEP
Buzzer output
O
0.0
0.0
0.0
24 LTOUT
4.7
24 P-GND
0.0
22 VDD
VDD
-
5.0
5.0
5.0
60 -
Not used
O
0.0
0.0
0.0
25 LF2C1
4.5
25 CLIP
0.0
23 POWER KEY
Power key input (L:Key ON)
I
5.0
5.0
5.0
61 NC/Flash-si
For program download
O
0.0
0.0
0.0
26 LF1C3
4.7
24 VOL-IN1
Volume encoder input A
I
0.0
0.0
0.0
62 NC/Fiash-so
For program download
O
0.0
0.0
0.0
27 LF1C2
0.0
25 VOL-IN2
Volume encoder input B
I
0.0
0.0
0.0
63 NC/Flash-sck
For program download
O
0.0
0.0
0.0
28 LF1C1
4.5
26 -
Not used
O
0.0
0.0
0.0
64 -
Not used
O
0.0
0.0
0.0
29 LTIN
4.7
27 ST
Stereo input (L:ST receive)
I
5.0
5.0
5.0
65 -
Not used
O
0.0
0.0
0.0
30 LVROUT
4.7
28 AM-IFC
AM IF counter input
I
2.0
0.0
2.0
66 -
Not used
O
0.0
0.0
0.0
31 LCOM
4.5
29 FM-IFC
FM IF counter input
I
0.0
0.0
2.0
67 -
Not used
O
0.0
0.0
0.0
32 LCT
4.5
30 VDD
VDD
-
5.0
5.0
5.0
68 -
Not used
O
0.0
0.0
0.0
33 LVRIN
4.7
31 VCOH
Local oscillation frequency input
I
0.0
2.5
0.0
69 ACC
ACC input (H:ON)
I
5.0
5.0
5.0
34 LSEL0
4.7
32 VCOL
Local oscillation frequency input
I
2.5
0.0
0.0
70 EJECT
Eject key input (L:Key ON)
I
5.0
5.0
5.0
35 BUS-L
4.5
33 GND
GND
-
0.0
0.0
0.0
71 M-BUSY
M-BUS busy in/output (L:ACT)
I/O
5.0
5.0
5.0
36 TAPE-L
4.5
34 EO0
Error out output
O
0.0
0.0
0.0
72 LCD-CE
LCD driver CE output (H:ACT)
O
0.0
0.0
0.0
37 RADIO-L
4.5
35 EO1
Error out output
O
0.0
0.0
0.0
LCD driver DISP forced black out output
38 AM-AF
4.5
36 VPP
For program download
-
0.0
0.0
0.0
(L:Forced black out)
39 VDD
8.4
37 SD-MAIN
SD input (H:With station)
I
5.0
5.0
0.7
74 REGCPU
CPU power supply regulator
-
3.5
3.5
3.5
40 VREF
4.7
38 IF-REQ
IF output request (L:IF-REQ output)
O
5.0
5.0
5.0
75 GND
GND
-
0.0
0.0
0.0
41 AM-AF
4.5
39 -
Not used
O
0.0
0.0
0.0
Crystal oscillator connection for system
42 RADIO-R
4.5
40 -
Not used
O
0.0
0.0
0.0
clock oscillation
43 TAPE-R
4.5
41 LPF-ON
LPF switch output
O
0.0
5.0
5.0
Crystal oscillator connection for system
44 BUS-R
4.5
42 -
Not used
O
0.0
0.0
0.0
clock oscillation
43 -
Not used
O
0.0
0.0
0.0
78 REGOSC
Oscillator circuit regulator
-
3.5
3.5
3.5
44 -
Not used
O
0.0
0.0
0.0
79 VDD
VDD
-
5.0
5.0
5.0
G-mecha tape-end detection input
80 _RESET
System reset input
I
5.0
5.0
5.0
(L scan)
46 BLANK
G-mecha blank detection input
I
5.0
5.0
*
* : Communication waveform
5.0
5.0
73 LCD-DISP
O
5.0
O
0.0
0.0
0.0
O
5.0
5.0
0.0
O
5.0
5.0
0.0
O
0.0
0.0
5.0
O
5.0
5.0
5.0
7kHz
53
54
55
56
TPOW
MMON
PMCW
PMCCW
I/O
5.0
5.0
0.0
4.0
5.0
I/O
0.6
0.0
0.6
5.0
*
5.0
5.0
I
I/O
I/O
5.0
5.0
4.0
I
0.0
*
0.0
M1/DOLBY
M0/MTL
47
48
ENDR
PKIN/MTL
M3/FF
M2_PLAYL
77
76
51
52
58
45 ENDL
I
0.0
0.0
*
*
*
I
*
*
*
X2
X1
O
*
8 VOL/LCD-DATA
O
0.0
0.0
0.0
9 VOL/LCD-CLK
O
5.0
5.0
5.0
20 ANT-ON
O
5.0
5.0
5.0
Voltage [V]
Pin
No.
49
50
Pin Name
Function
I/O
Pin
No.
Pin Name
Function
I/O
Pin
No.
Pin Name
Voltage [V]
Voltage [V]
Pin
No.
Pin Name
Voltage [V]
21
Summary of Contents for RX-1MX8-MT-T
Page 16: ...MODEL RX 1MX8 T MT T PCB MAIN PANEL Vol 1 Vol 2 Vol 3 Vol 4 SCHEMATIC DIAGRAM 16 ...
Page 17: ...17 SCHEMATIC DIAGRAM PCB MAIN PANEL MODEL RX 1MX8 T MT T Vol 1 ...
Page 18: ...18 SCHEMATIC DIAGRAM PCB MAIN PANEL MODEL RX 1MX8 T MT T Vol 2 ...
Page 19: ...19 SCHEMATIC DIAGRAM PCB MAIN PANEL MODEL RX 1MX8 T MT T Vol 3 ...
Page 20: ...20 SCHEMATIC DIAGRAM PCB MAIN PANEL MODEL RX 1MX8 T MT T Vol 4 ...
