CASIO ND-80S Service Manual
ND-80S
INDEX
SEP. 2001
POWER
STAD BY
MEMORY
SLEEP
REPEAT
TUNING
TUNER TAPE
ROCK FLAT
ND-80S
CD MICRO COMPONENT SYSTEM
REMOTE
VOLUME
BAND
STEREO
STOP
CD
JAZZ
PLAY
POUSE
Model-G : Argentina
Model-K : Korea
Model-E : Other Countries
(Except USA and EU)
MICRO SYSTEM
CONTENTS
SPECIFICATIONS--------------------------------------------------------------------------------- 1
ADJUSTMENTS ----------------------------------------------------------------------------------- 2
CASSETTE MECHANISM --------------------------------------------------------------- 2
BLOCK DIAGRAMS ------------------------------------------------------------------------------ 4
WIRING DIAGRAM ------------------------------------------------------------------------------- 5
PCB VIEWS ----------------------------------------------------------------------------------------- 6
IC LEAD IDENTIFICATION AND INTERNAL DIAGRAMS--------------------------- 10
IC VOLTAGES------------------------------------------------------------------------------------ 18
SCHEMATIC DIAGRAMS --------------------------------------------------------------------- 20
PARTS LIST -------------------------------------------------------------------------------------- 23
EXPLODED VIEWS----------------------------------------------------------------------------- 25
SPECIFICATIONS
CD PLAYER
Type ..............................................................Compact disc player with optical pick up
Number of channels...................................... 2 (stereo)
Frequency response .....................................20 Hz - 20 kHz
Dynamic range.............................................. 80 dB
Total harmonic distortion...............................0.1 % (1 kHz)
S/N ratio ........................................................80 dB
Wow and flutter .............................................Unmeasurable
RADIO
Frequency range
AM ......................................................522 – 1620 kHz (9 kHz step)
520 – 1710 kHz (10 kHz step)
FM.......................................................87.5 – 108 MHz
Antenna
AM ......................................................Ferrite-bar antenna
FM.......................................................Wire antenna
TAPE
Tape speed ...................................................4.75 cm/sec.
Track system.................................................4-track, 2-channel stereo
Wow and flutter .............................................0.25 % (WRMS)
S/N ratio ........................................................35 dB
POWER REQUIREMENTS
......................................................................AC 220 V, 50 Hz
GENERAL
Power consumption ...................................... AC 40 W
Output power ................................................ 5.0 W + 5.0 W (10 % THD)
Speaker unit.................................................. 100 mm, 4 ohms
40 mm, 4 ohms
Dimensions ...................................................144 × 216 × 247 mm (Main unit)
132 × 213 × 196 mm (Speaker unit)
Weight........................................................... Approx. 2.6 kg (Main unit)
Approx. 1.5 kg × 2 (Speaker unit)
Accessories...................................................Remote controller
2 × AAA battery for remote controller User’s guide
* Specifications are subject to change without notice.
— 1 —
ADJUSTMENTS
CASSETTE MECHANISM
General Remarks
• Before attempting to adjust the mechanism, wipe clean all tape-contacting surfaces (pinch roller, REC/PB
head, erase head, and capstan), as well as the contact surfaces of the driving parts (motor pulley, flywheel,
pulley, belt, and clutch assembly), with a piece of soft cloth moistened with denatured alcohol. Grease stains
may cause trouble.
• Never use a magnetized screwdriver for head adjustment.
Equipment Required
• Oscilloscope
• Frequency counter
• Screwdriver (Plastic type)
• Test tapes MTT-113C (TEAC) or TCC-111N (TEAC)
Head Azimuth Adjustment (Figures 1 and 2)
Step
1
Setting
Play the test tape 8 KHz
Position (MTT-113C)
Set
Headphone jack
Note: Mode Switch is X--Y position.
Adjust
Azimuth screw
(Figure 2)
Figure 1
Result
Obtain the maximum amplitude
(A: Maximum) (B: Minimum)
B
A
Adjust Screw
P/R Head
Figure 2
— 2 —
Tape Speed Adjustment (Figures 3 and 4)
Step
1
Setting
Play the test tape
(MTT-111N)
Adjust
Motor screw
(Figure 4)
Headphone Jack
Figure 3
Result
Frequency counter reading should be
3000 Hz (2940 ~ 3060)
Frequency CounterSET
3000
Screw
Motor
Figure 4
— 3 —
R/P HEAD
ANALOG SW
TC4052BP
IF AMP
DECODER
TC9235P
VOLUME
CONTROL
TUN R
TUN L
REC L
TAPE R
TAPE L
CD R
SYNC
CD L STBY
REC R
L R/P
L/P HEAD
R R/P
A
123
R
L
EQ
CONTROL
FLAT
JAZZ
ROCK
R
L
BA5417
POWER
AMP
R
L
R
R TWEETER
L TWEETER
R SPEAKER
L
AM ANT
FM ANT
L SPEAKER
TUNER IC
TA2104BN
PLL IC
TC9257F
HEAD AMP
TA2109F
REMOTE
CONTROL
POWER
SUPPLY
PANEL
KEYS
OPTICAL PICKUP
SONY KSM-213CCM
REC/PLAY
AMP
TA8142P
BIAS VOL TA GE
BIAS FREQUENCY
DIGITAL SERVO PROCESSOR
AND
MCU
+ 5 V
TC9457F-213
4CH DRIVER
TA2092N
VOLTAGE
STABLIZATION
VOLTAGE
STABLIZATION
6 DIGIT LCD
RECTIFICATION
— 4 —
BLOCK DIAGRAMS
RIGHT SPEAKER
RIGHT SPEAKER (TWEETER)
LEFT SPEAKER
TRANSFORMER
AC VOLTAGE SELECTOR
AC IN
TAPE MECHNISM
CD BD.
CONTROL BD.
TUNER BD.
AUDIO BD.
CD MECHNISM
AM ANT FM ANT
AC 127 V AC240 V
RED
WHITE
BLACK
LEFT SPEAKER (TWEETER)
Title :
Band :
Size :
Data :
DP2644 (DI) WIRING DIAGRAM
AM / FM
14-JULY-2001
0
1 / 1
he qiang
Revision :
Sheet of :
Drawn by :
MOTOR
E HEAD
P/R HEAD
L. SIL
Q101
R128
Q113
R130
C130
C138
Q114
C149
JP907
JP917
CN908
CN905
CN904
JP971
C962
D902
D903
R939
R957
CN906
C957
C948
Q902
Q903 C958
C959
C931
R916
R917
R918
R958
R959
JP951
JP95?
JP923
31
51
81
1
JP953
L904
R95?
R961
R960
JP908
D904
D901
C955
JP952
JP903
JP901
JP902
C956
????
A3
FB901
L910
C968
JP954
JP905
JP904
JP906
R946
R955
R953
R954
R952
R945
L905
????
????
????
????
JP915
SND
DOOR
JP955
JP956
JP9??
JP948
R93?
?950
JP957
C941
C907
C94?
L-????
A-????
R-????
D-????
+8V
S???
????
FM+
FM–
DM+
DM–
C???
IC903
C913
C912
C911 C917
R902
R911 R912
R914
R915
R913
C919
C918
C932
C947
C967
R947
R944
JP932
JP946
JP933
JP926
JP91?
R922
C936
R9??
JP941
JP940
JP939
JP938
JP937
CN907
JP936
R949
R950
R951
R???
JP949
COM1
COM2
COM3
COM4
S01
S02
S03
S04
S05
S06
S07
S08
S09
S10
S11
S12
S14
S13
S15
S16
S17
S18
VOL-UP
VOL-DN
KEY-A1
KEY-A2
KEY-A3
+5V
GND
VDD
GND
OUT
C951
C952
C???
C953 C965
X902
Q904
C966
C940
C933
C94?
RS902
R932
C942
C92?
C945
C934
C935
C937
C904
C9??
C9??
C9??
S?60
C902 C909
C?0?
C910
C903
R926
R903
R905
R907
R904
R906
R908
R910
IC902
R901
C927
C928
R933
C929
C990
JP921
JP929JP934
R923
R924
R909
L902
JP945
JP925
JP913
JP912
JP927
JP919
R919
C921
C920
C924C923
C916
C915
C925
JP930
R921
C9??
L901
CN901
CN901
CN503 CN505 CN502
CN306
CN903 CN902
CN202
JP935
JP943
C905
C914
Q901
JP924
JP911
JP910
?REF
FE0
FE0
JP942
C9??
C9??
JP?0?
L903
X901
A4
JP928
JP???
C9?9
R928
R927
CT9??
C963
C351
C950
R930
R934
R931
L908
JP916
JP920
R962
R964
R965
R966
R963
R970
JP922
JP???
R944
R943
R940
R941
R942
R94?
R936
+5V6
B3
POWER
RESET
???????
???????
R935
D905
POWER
SLEED
UP
DOWN
REPEAT/P
PROGRAM
R708
R709
R710
R711
R701
R702
C701
C702
R714
R713
Q701
R712
Q702
CN701
Q703
SW701
JP703
JP702
TUNER LED
TAPE LED
JP710
Q706
R720
R717
JP719
JP718
CD701
RCON701
JP720
R703
STOP
P/P
STEREO
VOL-DOWN
VOL-UP
R705
Q704
Q705
CN702
CD LED
JP709
JP706
JP705
JP704
L702
CN703
JP708
JP707
FUNC
KEY LED
D702
R715
JP701
JP717
JP716
JP714
JP713
R721
R716
JP722
R704
R706
BAND
R707
VDD
GND
DDU
JP711
R718
R719
L701
COM1
COM2
COM3
COM4
S01
S02
S03
S04
S05
S06
S07
S08
S09
S010
S011
S012
S13
S14
S15
S16
S17
S18
VOL_UP
VOL_DN
KEY-A1
KEY-A2
KEY-A3
+5V
GND
VDD
GND
OUT
+9V
POWER
FUNC A
FUNC B?HI
LOW
ST SW
D701
CN906CN904
CN701 CN702 CN703
CN504
CN201
CN908
CN905
CN907
24B-206802-117
6-Sep-2001
22i 27i 45
JP31
JP021
JP401
JP46
JP42JP039
JP020
Q405
R415
Q406
R424
Q408
R421
Q404
R412
JP016
R423
R422
JP41
C204
C410
JP019
C203
JP40
C205
C207
R203
CN201
C209
C210
C206
C218
C219
C216
R220
AL
C1111
C401
C212
C224
R418
JP012
IC201
JP013
C801
C217
R801
R809
C805
D802
R803
UR201
T801
C230
C807
CN202
R801
CN1101
R1 R2B1 B2
R213
C221
R217
C407
JP025
JP028
R205
C227
Q409
C211
R207
C213
R209
R211
C215
R210
C214
C228
R206
R208
R807
C314
C316
C304
R302
C306
C305
IC301
R301
R808 RB12
SW001
JP36
JP024
JP023
JP032
JP033
JP034
JP035
R420
JP027
R411
R413
R414
+12V
CD SYNC
STBY
+5V
MUTE
FUN
B+BV
R.CH/TAPE
L.CH/TAPE
R.CH/REC
L.CH/REC
R.CH/D
L.CH/D
LAMP–
AGMD
RESET
R417
JP005
R219
R416
JP006
JP007JP018
C202
C208
JP022
C223
C220
R216
R218
JP010
JP011
JP029
R214
JP008
C802
D801
R806
C808
C810
C1108
C1107
D1108
D1107
C1106
C1105
D1106
D1105
JP003
R802
C804
R215
C222
R212
C229
JP037
R204
C226 C225
JP002
JP015
R201
JP014
R202
JP017
C201
SW201
R410
R312
JP026
JP47
JP48
C405
C312
R407
R308
C308
R310
Q304
R311
Q303
D1101
D1102
D1103
D1104
C1102
C1101
C1103
C1104
C1110
R309
R306
JP38
JP001
JP044
JP043
SW801
CN310 L
CN309
CN309
CN501
CN310
L+
L-
R+
R-
R
L303
L301
R318
R319
JACK301
L302
C315
CN306
R314
R313
Q302
R316
R315
C313
Q301
C317
C406
R409
Q402
R404
Q407
R405
Q401
R403
R402
R401
R419
FS1102
CAUTION : FOR CONTINUED PROTECTION
AGAINST RISK OF FIRE, REPLACE ONLY
WITH SAME TYPE T1.6AL/250U FUSE
CAUTION : FOR CONTINUED PROTECTION
AGAINST RISK OF FIRE, REPLACE ONLY
WITH SAME TYPE T2.5L/250U FUSE
FUSE T1.6AL/250U
FS1101 FUSE T2.5L/250U
C1109
C402
R408
D403
C403
Q403
JP030
R303
C309
R320
C311
C302
C301
R321
C310
C307
D402
C408
C404
JP004
D401
C409
R307
R317
C303
C319
R304
C318
R305
R2
B2
R1
B1
— 5 —
WIRING DIAGRAM
MAIN PCB
24B-206802-117
6-Sep-2001
22i 27i 45
JP31
JP021
JP401
JP46
JP42JP039
JP020
Q405
R415
Q406
R424
Q408
R421
Q404
R412
JP016
R423
R422
JP41
C204
C410
JP019
C203
JP40
C205
C207
R203
CN201
C209
C210
C206
C218
C219
C216
R220
AL
C1111
C401
C212
C224
R418
JP012
IC201
JP013
C801
C217
R801
R809
C805
D802
R803
UR201
T801
C230
C807
CN202
R801
CN1101
A1 A2 B1 B2
R213
C221
R217
C407
JP025
JP028
R205
C227
Q409
C211
R207
C213
R209
R211
C215
R210
C214
C228
R206
R208
R807
C314
C316
C304
R302
C306
C305
IC301
R301
R808 RB12
SW001
JP36
JP024
JP023
JP032
JP033
JP034
JP035
R420
JP027
R411
R413
R414
+12V
CD SYNC
STBY
+5V
MUTE
FUN
B+BV
R.CH/TAPE
L.CH/TAPE
R.CH/REC
L.CH/REC
R.CH/D
L.CH/D
LAMP–
AGMD
RESET
R417
JP005
R219
R416
JP006
JP007JP018
C202
C208
JP022
C223
C220
R216
R218
JP010
JP011
JP029
R214
JP008
C802
D801
R806
C808
C810
C1108
C1107
D1108
D1107
C1106
C1105
D1106
D1105
JP003
R802
C804
R215
C222
R212
C229
JP037
R204
C226 C225
JP002
JP015
R201
JP014
R202
JP017
C201
SW201
R410
R312
JP026
JP47
JP48
C405
C312
R407
R308
C308
R310
Q304
R311
Q303
D1101
D1102
D1103
D1104
C1102
C1101
C1103
C1104
C1110
R309
R306
JP38
JP001
JP044
JP043
SW801
CN310
L
CN309
R
L303
L301
R318
R319
JACK301
L302
C315
CN306
R314
R313
Q302
R316
R315
C313
Q301
C317
C406
R409
Q402
R404
Q407
R405
Q401
R403
R402
R401
R419
FS1102
CAUTION : FOR CONTINUED PROTECTION
AGAINST RISK OF FIRE, REPLACE ONLY
WITH SAME TYPE T1.6AL/250U FUSE
CAUTION : FOR CONTINUED PROTECTION
AGAINST RISK OF FIRE, REPLACE ONLY
WITH SAME TYPE T2.5L/250U FUSE
FUSE T1.6AL/250U
FS1101 FUSE T2.5L/250U
C1109
C402
R408
D403
C403
Q403
JP030
R303
C309
R320
C311
C302
C301
R321
C310
C307
D402
C408
C404
JP004
D401
C409
R307
R317
C303
C319
R304
C318
R305
PCB VIEWS
— 6 —
JP907
JP917
CN908
CN905
CN904
JP971
C962
D902
D903
R939
R957
CN906
C957
C948
Q902
Q903 C958
C959
C931
R916
R917
R918
R958
R959
JP951
JP923
31
51
81
1
JP953
L904
R961
R960
JP908
D904
D901
C955
JP952
JP903
JP901
JP902
C956
A3
FB901
L910
C968
JP954
JP905
JP904
JP906
R946
R955
R953
R954
R952
R945
L905
JP915
SND
DOOR
JP955
JP956
JP948
JP957
C941
C907
+8V
FM+
FM–
DM+
DM–
IC903
C913
C912
C911 C917
R902
R911 R912
R914
R915
R913
C919
C918
C932
C947
C967
R947
R944
JP932
JP946
JP933
JP926
R922
C936
JP941
JP940
JP939
JP938
JP937
CN907
JP936
R949
R950
R951
JP949
COM1
COM2
COM3
COM4
S01
S02
S03
S04
S05
S06
S07
S08
S09
S10
S11
S12
S14
S13
S15
S16
S17
S18
VOL-UP
VOL-DN
KEY-A1
KEY-A2
KEY-A3
+5V
GND
VDD
GND
OUT
C951
C952
C953 C965
X902
Q904
C966
C940
C933
RS902
R932
C942
C945
C934
C935
C937
C904
C902 C909
C910
C903
R926
R903
R905
R907
R904
R906
R908
R910
IC902
R901
C927
C928
R933
C929
C990
JP921
JP929JP934
R923
R924
R909
L902
JP945
JP925
JP913
JP912
JP927
JP919
R919
C921
C920
C924C923
C916
C915
C925
JP930
R921
L901
CN901
JP935
JP943
C905
C914
Q901
JP924
JP911
JP910
FE0
FE0
JP942
L903
X901
A4
JP928
C9?9
R928
R927
C963
C351
C950
R930
R934
R931
L908
JP916
JP920
R962
R964
R965
R966
R963
R970
JP922
R944
R943
R940
R941
R942
R936
+5V6
B3
POWER
RESET
R935
D905
CD PCB
— 7 —
Loading...