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A
B
CDR-D651
SCHEMATIC DIAGRAM
( OPERATION )
1
2
CB4
3
4
CB105
5
CB106
CB5
6
CB6
CB7
7
Point 3
A : +side of D201
B : Pin 8 of IC201
A
8
B
With the POWER switch
Disconnect the power cord
turned ON, connect the
from the AC outlet.
power cord to the AC outlet.
9
E-25/J-21
C
D
E
0
0
-5.0
-5.0
0
0
RH03506BT-B-1B
0
0
-5.0
-5.0
0
0
MUTING
5.0
0
0
0
0
0
-5.0
0
0
5.0
2.5
5.0
0
4.7
7.9
7.3
PHONES AMP.
0
5
7.0
RH03506BT-B-1B
8
0
6
0
7
RH03506BT-B-1B
0
2
1
0
3
0
RH03506BT-B-1B
4
-7.1
-8.0
-7.1
5.0
11.1
-0.2
5.0
0
5.5
-5.5
-0.2
11.1
5.0
5.0
5.0
5.5
5.5
-5.5
5.0
4.9
0
MUTE CONTROL
-5.0
-12.3
3-A
-11.6
-12.3
-0.2
10.1
11.0
5.0
10.8
3-B
AC19.8
5.5
10.8
AC19.3
5.5
POWER SUPPLY
AC4.4
0
10.8
5.5
6.0
0
7.9
10.7
10.9
0
0
1.2
10.3
0
-11.8
-11.8
-27.3
-28.6
-28.6
-22.3
-20.9
-27.9
-21.7
F
G
CB301
0
0
0
0.1
0
0
0
0.1
-24.2
~
~
-11.9
~
~
~
0
5.0 5.0
~
~
~
~
-24.0
REMOTE SENSOR
-19.1
~
~
~
0
0
1.7
0
0
0
IC102 : NJM2068D-D
Dual Op-Amp.
OUT1
1
–IN1
2
+
+IN1
3
–Vcc
4
IC300 : LC75711NE
FL Driver
G6
G5
G4
G3
G2
G1
VFL
TEST
VSS
OSCO
OSCI
VDD
RES
CE
CL
DI
DI
CL
CE
VDD
VSS
VFL
RES
TEST
OSC I
OSC O
H
I
J
CB307
-24.8
-24.8
-24.8
~
-24.8
FL DRIVER
~
-24.8
-24.8
-24.8
-24.8
-24.1
IC104 : M5218AL
IC200 : M5237L
Headphone Amp.
Voltage Regulator
1
8
+Vcc
+
+
Starting
7
OUT2
–
–
Circuit
–
+
–
6
–IN2
Heat
Protection
5
+IN2
1
2
3
4
5
6
7
8
Standard
Voltage
Circuit
2
IC201 : M5290P
Constant-Voltage Tracking Supply with Reset
49
32
AM32
50
31
AM31
51
30
AM30
52
29
AM29
53
28
AM28
54
27
AM27
REFERENCE
REGULATOR
55
26
AM26
56
25
AM25
GND
9
57
24
AM24
ON/OFF
58
23
AM23
ON/OFF
CONTROL
10
59
22
AM22
60
21
AM21
AM20
61
20
AM19
62
19
AM18
63
18
AM17
64
17
CG
ROM
SHIFT
DC RAM
AM1
REGISTER
CG
AM2
ROM
ADDRESS
ADDRESS
AD
AM35
REGISTER
COUNTER
RAM
AA1
All voltage are measured with a 10MΩ /V DC electric volt meter.
BLINKCYCLE
BLINK
AA2
Components having special characteristics are marked s and
REGISTER
GENERATOR
AA3
must be replaced with parts having specifications equal to those
AA4/G16
DISPLAY
DISPLAY
REGISTER
CONTROL
AA5/G15
originally installed.
AA6/G14
Schematic diagram is subject to change without notice.
DUTYCYCLE
DUTY
AA7/G13
REGISTER
GENERATOR
AA8/G12
G11
GRID
GRID
Åú ìd à≥ÇÕ ÅA ì‡ ïî íÔçR 10MÉ∂Çà ìd à≥åvÇ≈ ë™ íËǵ ÇΩ Ç‡ Çà Ç≈ Ç∑ ÅB
G10
REGISTER
CONTROL
Åú s
INSTRUCTION
CONTROL
DECODER
G2
TIMING
G1
OSC
DIVIDER
DECODER
GENERATOR
K
L
PIN CONNECTION
DIAGRAM OF
TRANSISTORS,
DIODES AND ICS.
AN8882SB
18
36
1
AN8785SB
15
21
30
22
14
28
8
29
7
1
LC75711NE
µPD78F0058
50
41
51
40
80
21
1
20
NJM2068MD
S-24C01AFJA-TB
8
4
1
TC4052BF
8
16
1
AN79L08-TA
OUT
IN
COM
HD74HC125FP
7
14
1
2SD1938F
DTC144EKA
2SA1037
C
E
B
ASO
Protection
Circuit
2SB1132
Excessive
Electric
Current
Protection
Amp.
3
E
C
B
OUTPUT
VCC
E– C+
NC
(+5V)
DELAY
16
15
14
13
12
7
REFERENCE
11
IN
8
RESET OUT
CURRENT
PROTECTION
CONTROL
+
6
BAL. ADJ.
CURRENT
CURRENT
CONTROL
CONTROL
1
3
2
4
5
–VCC
E–
C–
NC
OUTPUT
(–5V)
Ø
i ˝ A S « m
i ƒ
˜ ¢
• B
i
•
" K v ¨ Œ
˝ A p [ c X g
L ‡ Œ ˜ ¢ Ø
i g p ˜
›
‡ ¢ B
{ æ H } ˝ W
æ H } ¯ • B
˙
‰
\ ¨ › ˇ X • Ø – ˘ "
† · ¢
• B
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