A
B
C
D
E
G
H
I
J
K
L
CDR-HD1500
47
SCHEMATIC DIAGRAM (OPERATION 1/2)
1
2
3
4
5
6
8
9
IC400: HD74HC139FPEL
Dual 2 line to 4 line Decoders/Demultiplexers
4
1Y0
1
5
1Y1
1G
ENABLE
SELECT
INPUTS
2
6
1Y2
1A
7
1Y3
3
1B
12
2Y0
15
11
2Y1
2G
ENABLE
SELECT
INPUTS
14
10
2Y2
2A
9
2Y3
13
2B
★
All voltage are measured with a 10M
Ω
/V DC electric volt meter.
★
Components having special characteristics are marked
s
and must be
replaced with parts having specifications equal to those originally
installed.
★
Schematic diagram is subject to change without notice.
2SC2878
HD74HC139FPEL
DTA114ES
DTC114ES
PIN CONNECTION DIAGRAM OF TRANSISTORS,
DIODES AND ICS.
M66005-0141AFP-280
E
C B
E
C
B
1
32
33
64
1
8
16
FL TUBE
DECODER/
DEMULTIPLEXERS
REMOTE CONTROL
RECEIVER
FL TUBE DRIVER
P
age 45
to MAIN
A6
P
age 46
to MAIN
J1
~
~
-22.2
-22.2
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
-22.2
-22.2
5.0
0
0
0
5.0
5.0
0
0
0
5.0
5.0
0
0
0
5.0
5.0
5.0
0
0
4.3
0
0
4.3
0.1
0
5.1
2.7
1.0
4.1
2.7
4.1
1.8
4.1
0
0
1.8
0
0
2.7
0
0
4.8
4.1
5.0
5.1
5.0
0
4.8
0
0
0
0
~
~
~
~
~
~
~
~
~
~
~
~
4.3
5.1
5.1
5.1
5.0
5.0
5.0
2.3
2.3
0
~
~
~
~
~
~
~
~
~
-28.2
~
~
~
~
5.0
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
Ohm
V
PUI_KEY0
91pin/AN0
PUI_KEY1
92pin/AN1
PUI_KEY2
93pin/AN2
PUI_KEY3
94pin/AN3
PUI_KEY4
95pin/AN4
Key Input (A-D) Pull-Up Resistance 10 k-ohms
+ 2.2k
~ 1.5
INPUT
FF/SKIP+
TEXT/TIME
COPY
CLEAR
+ 4.7k
~ 2.5
ERASE
COMPLETE
TRACK NO./
BOOKMARK
CDR
MENU
+ 8.2k
~ 3.5
FINALIZE
PLAY/PAUSE
REW/SKIP–
HDD
ENTER
(MULTI JOG)
+ 22.0k
~ 4.5
REC
STOP
OPEN/CLOSE
A.M.Q.R.
MODE
w w w
.
x i a o y
u 1 6 3 .
c o m
Q Q
3 7 6 3 1 5 1 5 0
9
9
2
8
9
4
2
9
8
T E L
1 3 9 4 2 2 9 6 5 1 3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299