Matsushita Electric DMR-ES15PL, Service Manual

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Data
Read Data
Write Data
Address
Scan Pulse
Timing Clock
RAM
Code
CGRAM
CGROM
Circuit
Control
FL
Decoder
Command
Code/
Generator
Clock
10MHz OUT
10MHz IN
10
11
Interface
Serial
Driver
Digit
Driver
Segmemt
G1
42 S1
S16
TBUS TXD
TBUS RXD
TBUS CLK
X_RESET
KEY IN1
KEY IN2
G2
G3
G4
G5
G6
G7
4
5
6
8
17
KEY IN3 18
16
43
44
45
46
47
48
75
49
64
XT MUTE 100
JC P ON H
7
DIP ON H 23
P SAVE H
P FAL L
29
IR 25
32KHz OUT 14
32KHz IN 13
GND
VDD
OUT
1
3
2
Vref
+
-
GND
VDD
OUT
1
3
2
Vref
+
-
-
+
+
-
8 7 6 5
1 2 3 4
B+IN
B-IN
BOUT V+
GND
A+IN
A-IN
AOUT
IC7501
TIMER
IC-DETAIL BLOCK DIAGRAM
IC7504
FAN MOTER DRIVE
IC-DETAIL BLOCK DIAGRAM
IC7502
3.3V Detctor
IC-DETAIL BLOCK DIAGRAM IC7514
5V Detctor
IC-DETAIL BLOCK DIAGRAM
IC7501 Detail Block Diagram
IC7502 Detail Block Diagram
IC7504 Detail Block Diagram
IC7514 Detail Block Diagram
DMR-ES15PL IC-Detail Block Diagram
49