Sharp CD-DP2400E (serv.man18) Service Manual ▷ View online
– 13 –
CD-DP2400E
TEST MODE
KEY
TEST MODE
CONTENTS
[ON/STAND-BY] [TUNER] + [X-BASS]
TEST 1
TUNER PRESET MEMORY CLEAR
[ON/STAND-BY] [MEMORY/SET] + [X-BASS]
TEST 2
TUNER PRESET FOR PRODUCTION
[ON/STAND-BY] [>>] + [X-BASS]
TEST 3
KEY AND DISPLAY TEST
[ON/STAND-BY] [CD] + [X-BASS]
TEST 4
CD TEST MODE
[ON/STAND-BY] [TAPE] + [X-BASS]
TEST 5
TAPE TEST MODE
[ON/STAND-BY] [>] + [X-BASS]
TEST 6
ALL CLEAR(RESET)
[ON/STAND-BY] [TUN UP] + [X-BASS]
TEST 7
AUDIO TEST
[ON/STAND-BY] [TUN DOWN] + [X-BASS]
TEST 8
PRODUCTION INITIALIZE FOR CHANGER
During POWER OFF mode,push below each 2 keys [ON/STAND-BY] key.
Then go to each TEST MODE.
Then go to each TEST MODE.
CD-DP2400E
– 14 –
•
The indicated voltage in each section is the one measured
by Digital Multimeter between such a section and the chas-
sis with no signal given.
1. In the tuner section,
sis with no signal given.
1. In the tuner section,
( ) indicates AM
< > indicates FM stereo
< > indicates FM stereo
2. In the main section, a tape is being played back.
3. In the deck section, a tape is being played back.
3. In the deck section, a tape is being played back.
( ) indicates the record state.
4. In the power section, a tape is being played back.
5. In the CD section, the CD is stopped.
5. In the CD section, the CD is stopped.
•
Parts marked with “ ” ( ) are important for
maintaining the safety of the set. Be sure to replace these
parts with specified ones for maintaining the safety and
performance of the set.
parts with specified ones for maintaining the safety and
performance of the set.
NOTES ON SCHEMATIC DIAGRAM
•
Resistor:
To differentiate the units of resistors, such symbol as K and
M are used: the symbol K means 1000 ohm and the symbol
M means 1000 kohm and the resistor without any symbol is
ohm-type resistor. Besides, the one with “Fusible” is a fuse
type.
M are used: the symbol K means 1000 ohm and the symbol
M means 1000 kohm and the resistor without any symbol is
ohm-type resistor. Besides, the one with “Fusible” is a fuse
type.
•
Capacitor:
To indicate the unit of capacitor, a symbol P is used: this
symbol P means micro-micro-farad and the unit of the
capacitor without such a symbol is microfarad. As to
electrolytic capacitor, the expression “capacitance/withstand
voltage” is used.
(CH), (TH), (RH), (UJ): Temperature compensation
(ML): Mylar type
(P.P.): Polypropylene type
symbol P means micro-micro-farad and the unit of the
capacitor without such a symbol is microfarad. As to
electrolytic capacitor, the expression “capacitance/withstand
voltage” is used.
(CH), (TH), (RH), (UJ): Temperature compensation
(ML): Mylar type
(P.P.): Polypropylene type
•
Schematic diagram and Wiring Side of P.W.Board for this
model are subject to change for improvement without prior
notice.
notice.
REF. NO
DESCRIPTION
POSITION
POSITION
SW713
TUNER (BAND)
ON—OFF
SW714
DIMMER
ON—OFF
SW715
X-BASS
ON—OFF
SW716
EQUALISER
ON—OFF
SW717
NORMAL
ON—OFF
SW718
PHANTOM
ON—OFF
SW719
BY-PASS
ON—OFF
SW720
ON/STAND-BY
ON—OFF
SW721
CLOCK
ON—OFF
SW722
TIMER/SLEEP
ON—OFF
SW728
DISC 1
ON—OFF
SW729
DISC 2
ON—OFF
SW730
DISC 3
ON—OFF
SW731
DISC SKIP
ON—OFF
SW732
OPEN/CLOSE
ON—OFF
REF. NO
DESCRIPTION
SW1
OPEN/CLOSE
ON—OFF
SW2
CLAMP
ON—OFF
SW3
DISC NUMBER
ON—OFF
SW4
PICKUP IN
ON—OFF
SW701
CD
ON—OFF
SW702
TAPE
ON—OFF
SW703
TUNING/TIME DOWN
ON—OFF
SW704
MEMORY/SET
ON—OFF
SW705
PRESET DOWN/REV
ON—OFF
SW706
PRESET UP/FF
ON—OFF
SW707
PLAY
ON—OFF
SW708
STOP
ON—OFF
SW710
REC
ON—OFF
SW711
TUNING/TIME UP
ON—OFF
SW712
VIDEO/AUX
ON—OFF
(1) (2) (3)
(S) (G) (D)
E C B
FRONT
VIEW
2SC1845 F
2SC380 O
KRA107 M
KRC102 M
KRC104 M
KRC107 M
2SC380 O
KRA107 M
KRC102 M
KRC104 M
KRC107 M
KTA1266 GR
KTA1271 Y
KTA1273 Y
KTA1274 Y
KTC3199 GR
KTC3203 Y
KTA1271 Y
KTA1273 Y
KTA1274 Y
KTC3199 GR
KTC3203 Y
KTC2026
3105UYT1
4204SRT7
4204UYT4
4204SRT7
4204UYT4
B C E
FRONT
VIEW
FRONT
VIEW
VIEW
Figure 14 TYPES OF TRANSISTOR AND LED
– 15 –
CD-DP2400E
CNP12
CNP11
Q2
+3.3V
+5V
CONT5
CONT2
CONT3
CONT4
CONT7
CONT6
SLD0
SPD0
FD0
TD0
+5V
TO DISPLAY SECTION
CLAMP SW
CDINT
WRQ
CE
DO
CLK
DI
CD RES
GND
DRF
CNS4
BI4
CNP4
M2
SLED
MOTOR
M1
SPINDLE
MOTOR
M
M
TRACKING COIL
FOCUS COIL
PICKUP UNIT
TE
FE
RFEV
HFL
VVDD
ADAVDD
VDD
LVDD
RVDD
XVDD
VDD5V
RFEV
FE-
FE
TE-
TE
HFL
+3.3V
Q1
LDD
PD
TIN2
TIN1
FIN2
FIN1
IC3
M63001FP
FOCUS/TRACKING/
SPIN/SLED DRIVER
SPIN/SLED DRIVER
IC1
LA9235M
SERVO AMP.
TO MAIN SECTION
(TO IC601)
R-CH
L-CH
AGND
DGND
+B6(+5V)
RCHO
RVSS
LVSS
LCHO
IC2
LC78641E
SERVO/SIGNAL
CONTROL
–
+
M
SW1
OPEN/
CLOSE
XL1
16.934MHz
6
5
4
3
3
2
5
4
1
1
2
3
4
7
8
2
1
7
8
9
10
1
2
4
3
5
SW2
CLAMP
SW3
DISC
NUMBER
M3
T/T
UP/DOWN
LOADING
MOTOR
6
1
2
4
3
5
6
1
2
4
3
5
6
75
76
45
46
47
48
32 31
30
65
66
67
68
69
70
71
72
CE
CL
DI
DO
INT
WRQ
RES
DRF
52
51
XOUT
XIN
73
5 18 36 44 49 50
7
14
15 16
23
24
25
26
33
3
13
19
40
64
74
17
18
19
20
21
22
30
23
11
9
1
4
5
6
7
15
16
26
27
2
17
25
41
42
38
39
35
29
22
21
14
8
40
24
23
28
Q3
LASER
DRIVER
CONSTANT
VOLTAGE
+3.3V
+5V
VCC4
18
VCC1
TO
VCC2
VCC3
FD
SLDO
SPO
LD_M–
LD_M+
LOADING
M–
LOADING
M+
FO+
FO–
TR+
TR–
SL–
SL+
SP+
SP–
SW4
PICKUP IN
Figure 15 BLOCK DIAGRAM (1/3)
CD-DP2400E
– 16 –
Q706
+B4
+B4
M
Q704
Q705
Q705
IC701
54PIN
54PIN
IC701
53PIN
53PIN
IC701
55PIN
55PIN
TAPE
MOTOR
SOLENOID
T2 PLAY
T1 PLAY
F. PLAY
MOTOR
DRIVER
DRIVER
FM ANTENNA
FM 75
Ω
SO301
17
8
456KHz
X351
CF351
FM DET
4
5
9
21
16
21
1 2
24
23
15
20
1
22
13
16
18
14
15
15
12
7 9
11
3
9
4
5
6
10
GND VCC
AM IF
FM IN
IC302
LC72131
PLL (TUNER)
FE301
FM FRONT END
OSC
AM IF
AM MIX
AM
IN
AM OSC IN
AM RF IN
X352
4.5MHz
T351
+B9
+B9
+B9
IC303
LA1832S
FM IF DET./FM MPX./AM IF
L
R
R
STEREO
AM OSC IN
DO
DI
CL
CE
1
24
2
23
3
4
4
4
21
6
7
17
8
9
16
10
14
12
13
18
H/N
T1/T2
R-CH
L-CH
L-CH
R-CH
P.B
REC
TAPE 2
TAPE 1
TAPE MECHANISM
Ass'y
L NF
L(T1)
R(T1)
L(T2)
R(T2)
R NF
L
R
POP REDUCE
L REC
R REC
L
R
R
REC
P.B.
REC
ALC
NOR/
HIGH
T1/T2
REF
L NF
R NF
R NF
PB HEAD
REC/PB HEAD
SWITCHING
Q103~Q106
AC BIAS
IC101
AN7345K
PLAYBACK AND RECORD
/PLAYBACK AMP.
PB
ERASE
HEAD
SWITCHING
BAIS
Q126
Q124
Q128
L104
Q111
Q110
Q109
Q107
Q108
SWITCHING
SWITCHING
SWITCHING
+B5
1
2
3
CNS401
FROM CD SECTION
CNP11
17
+B5
+B9
+B5
+B5
+B5
VOLTAGE
REGURATER
9
16
10
15
11
15
11
14
12
13
13
8
17
18
7
1
2
75
74
34
21
69
25
38
3
IC401
LC75341
AUDIO PROCESSOR
L
R
L
R
L
R
L
R
L
L
R
R
TUNER
L
R
VIDEO
TAPE
CD
BAIS
VROAD
T1/T2
REC
+B5
21
4
9
Q501
Q502
ZD80
FM IF IN
FM IF
FM IF
CF301
7 FM
Q360
Q301
FM +B
VOLTAGE
REGULATOR
CF302
FM+B
MO/ST
FM/AM
BIAS
OCS
15
19
24 1
2
23
MONO/ST
JK201
VIDEO IN
CF352
L354
LOW PASS
FILTER
TAPE
MECHANIS
IC501
M62464AFP
DOLBY PROLOGIC
DECORDER
M62464AFP
DOLBY PROLOGIC
DECORDER
CL
DI
CE
1
2
AM LOOP
ANTENNA
ANTENNA
CNP301
T306
AM
ANT
COIL
AM
OSC
COIL
T303
L341
BALUN
4 3
1
5
VT
VCC
FOUT
IFOUT
ANT
8
7
6
2
Figure 16 BLOCK DIAGRAM (2/3)
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