WF-1000W CONTENTS Page SPECIFICATIONS ............................................................................................................................................................... 2 VOLTAGE SELECTION ....................................................................................................................................................... 2 AC POWER SUPPLY CORD AND AC PLUG ADAPTOR ................................................................................................... 2 NAMES OF PARTS ............................................................................................................................................................. 3 FITTING OF DIAL POINTER ............................................................................................................................................... 4 DISASSEMBLY .................................................................................................................................................................... 5 ADJUSTMENT ..................................................................................................................................................................... 6 NOTES ON SCHEMATIC DIAGRAM .................................................................................................................................. 7 TYPES OF TRANSISTOR AND LED ................................................................................................................................... 7 SCHEMATIC DIAGRAM / WIRING SIDE OF P.W.BOARD ................................................................................................. 8 PARTS GUIDE / EXPLODED VIEW WF-1000W(BK) WF-1000W(S) SERVICE MANUAL SHARP CORPORATION No. S0957WF1000WK • In the interests of user-safety the set should be restored to its original condition and only parts identical to those specified should be used. This document has been published to be used for after sales service only. The contents are subject to change without notice.
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WF-1000W
– 1 –
CONTENTSPage
SPECIFICATIONS ............................................................................................................................................................... 2VOLTAGE SELECTION ....................................................................................................................................................... 2AC POWER SUPPLY CORD AND AC PLUG ADAPTOR ................................................................................................... 2NAMES OF PARTS ............................................................................................................................................................. 3FITTING OF DIAL POINTER ............................................................................................................................................... 4DISASSEMBLY .................................................................................................................................................................... 5ADJUSTMENT ..................................................................................................................................................................... 6NOTES ON SCHEMATIC DIAGRAM .................................................................................................................................. 7TYPES OF TRANSISTOR AND LED................................................................................................................................... 7SCHEMATIC DIAGRAM / WIRING SIDE OF P.W.BOARD ................................................................................................. 8PARTS GUIDE / EXPLODED VIEW
WF-1000W(BK)WF-1000W(S)
SERVICE MANUAL
SHARP CORPORATION
No. S0957WF1000WK
• In the interests of user-safety the set should be restored to its originalcondition and only parts identical to those specified should be used.
This document has been published to be usedfor after sales service only.The contents are subject to change without notice.
WF-1000W
– 2 –
FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFERTO THE OPERATION MANUAL.
QACCE0007AW00
AC POWER SUPPLY CORD AND AC PLUG ADAPTOR
QACCA0001SJ00
QPLGA0253AFZZ
VOLTAGE SELECTIONBefore operating the unit on mains, check the preset voltage. If the voltage is different from your local voltage, adjust the voltageas follows: Slide the AC power supply socket to the visible indication of the side of your local voltage.
SPECIFICATIONS
● GeneralPower source: AC 110-127 V/220-240 V,
50/60 HzDC 15 V ["D" size(UM/SUM-1, R20 or HP-2)battery × 10]
Powerconsumption: 28 WOutput power: PMPO; 200 W (total)
(AC operation)MPO; 50 W (25 W + 25 W) (AC operation, 10 % T.H.D.)RMS; 25 W (12.5 W + 12.5W)(DC operation, 10 % T.H.D.)
Tweeter × 2Impedance: 8 ohmsDimensions: Width; 235 mm (9-1/4")
Height; 262 mm (10-5/16")Depth; 220 mm (8-11/16")
Weight: 1.8 kg (4.0 lbs.)/each
Specifications for this model are subject to change withoutprior notice.
WF-1000W
– 3 –
NAMES OF PARTS
11. Graphic Equalizer Controls12. Power Indicator13. Volume Control14. FM Stereo Indicator15. Fine Tuning Control16. Built-in Microphone17. Mixing Microphone Socket18. Headphone Socket19. Function Selector Switch10. (TAPE 1) Cassette Compartment11. Tuning Control12. Extra Bass Switch13. Band Selector Switch14. Dubbing Speed/Built-in Microphone/FM Mode Switch15. (TAPE 2) Cassette Compartment16. (TAPE 1) Record Button17. (TAPE 1) Play Button18. (TAPE 1) Rewind Button19. (TAPE 1) Fast Forward Button20. (TAPE 1) Stop/Eject Button21. (TAPE 1) Pause Button22. (TAPE 2) Play Button23. (TAPE 2) Rewind Button24. (TAPE 2) Fast Forward Button25. (TAPE 2) Stop/Eject Button
26. FM/SW Telescopic Rod Aerial27. CD/Line Input Sockets28. Beat Cancel Switch29. Speaker Terminals30. AC Voltage Selector31. AC Power Input Socket32. Battery Compartment
1. Remove the Main PWB, the Graphic Equalizer PWB, theVolume PWB and the Fine Tuning PWB. (See Figure 5-2in the "Disassembly" on page 5.)
2. Remove the dial pointer guide and PWB.3. Insert the dial pointer from , lead it under , hang it on
the tuner gear and then pass it through .4. Replace the Main PWB, the Graphic Equalizer PWB, the
Volume PWB and the Fine Tuning PWB.5. Rotate the tuning knob in the arrow direction until it stops.
(Set the tuner variable capacitor to "0" point (F-LOWstate).)
6. Adjust the dial pointer so that its stopper becomes theFigure 4-2 position. (Adjust the engagement of the pointergear and the tuner gear to get the minimum space betweenthe PWB and the stopper.) This position is the "0" point.
7. Screw up the PWB and the dial pointer guide.
Fine TuningPWB
Dial Pointer(211)
"0" Point
Dial Pointer(211)
TunerGear
Tuning Knob
Front Cabinet
PWB
Dial Pointer Guide(218)
Screw(601)ø3x10mm
Main PWB
Volume PWB
Graphic EqualizerPWB
A
B
C
Figure 4-2
Tuner Gear
Stopper
Main PWB
Variable Capacitor
Dial Pointer
PWB
Make the minimum space.
Front Cabinet
Pointer Gear
WF-1000W
– 5 –
DISASSEMBLYCaution on DisassemblyFollow the below-mentioned notes when disassemblingthe unit and reassembling it, to keep it safe and ensureexcellent performance:1. Take cassette tape out of the unit.2. Be sure to remove the power supply plug from the wall
outlet before starting to disassemble the unit and removethe batteries from the unit.
3. Take off nylon bands or wire holders where they needto be removed when disassembling the unit. Afterservicing the unit, be sure to rearrange the leads wherethey were before disassembling.
4. Take sufficient care on static electricity of integratedcircuits and other circuits when servicing.
DECK SECTION• Bias Oscillation• Beat Cancel Switch: C
L301 100 kHz + 4 kHz Pin 1 of CNS102
Adjustment Point Specified value InstrumentConnection
WF-1000W
– 7 –
Figure 7-1 ADJUSTMENT POINTS
NOTES ON SCHEMATIC DIAGRAM• Resistor:
To differentiate the units of resistors, The symbol as K andM are used: the symbol K means 1000 ohm and the symbolM means 1000 kohm and the resistor without any symbolis an ohm resistor. The resistor designated “Fusible” is afuse type resistor.
• Capacitor:To indicate the unit of capacitor, a symbol P is used: thissymbol P means pico-farad and the unit of the capacitorwithout such a symbol is microfarad. As to electrolyticcapacitor, the expression “capacitance/withstand voltage”is used.(CH),(RH),(UJ): Temperature compensation(ML): Mylar type(S): Styrol type
• The indicated voltage in each section is the one measuredby Digital Multimeter between such a section and thechassis with no signal given.
• Schematic diagram and Wiring Side of P.W. Board for thismodel are subject to change for improvement without priornotice.
• Parts marked with “ ” ( ) are important formaintaining the safety of the set. Be sure to replace theseparts with specified ones for maintaining the safety andperformance of the set.
DESCRIPTION POSITION
SW1 BAND SELECTOR FM
SW101 RECORD/PLAYBACK PLAYBACK
SW102 BEAT CANCEL A
SW103 DUBBING SPEED/MIC/ MIC/FM MONOFM MODE
SW401 X-BASS ON
SW501 FUNCTION SELECTOR CD/LINE
SW501A TAPE 2 MAIN OFF
SW502 TAPE 1 MAIN OFF
SW503 TAPE 2 PLAY OFF
SW601 VOLTAGE SELECTOR AC220-240V
REF. NO.
Figure 7-2 TYPES OF TRANSISTOR AND LED
333ID
VIEWFRONT
KTA1271 YKTC3199 GRKTC3203 Y
VIEWFRONT
E B C
SW401
CF2
IC2
TC6
SW1
TC5
SW103
L7
TC7
L1
L2
L8
L6
L5
TC8
L9L11
CF3
IC1 CF1
IC501
CNP103
IC502
VR102
VR1
L10
CNP501SPEAKER TERMINALS
1
24
12
SW1TRACKING fH
TC1TC2
TC3TC4
MWTRACKING fH
MW BANDCOVERAGE fH
FM TRACKINGfH
FM BANDCOVERAGE
fHfL
SW2TRACKING
fHfL
L4
L3
SW1TRACKING fL
MWTRACKING fL
FMTRACKING fL
AM IFFM IF
FM DETECTION
VCO
SW1 BANDCOVERAGE
fHfL
SW2 BANDCOVERAGE
fHfL
MW BANDCOVERAGE fL
TAPE SPEED
MAIN PWB
9
2113
L301
SW102
BIAS OSCILLATION
WF-1000W
– 8 –
• NOTES ON SCHEMATIC DIAGRAM can be found on page 7.
A
B
C
D
E
F
G
H
1 2 3 4 5 6
Figure 8 SCHEMATIC DIAGRAM (1/2)
D162DS1SS133
R1771K
D159DS1SS133
C1360.0027(ML)
C1350.0027(ML)
R11122K
C43220P
TC3
TC5
TC7
C201500P(P.P)
C270.0047(P.P)
R1047
R1147
SW1-GBANDSELECTOR
C300.022
R13100
SW1-HBANDSELECTOR
C420.022
C215P(UJ)
C260.022
R1821K
SW501-CFUNCTIONSELECTOR
SW501-BFUNCTIONSELECTOR
R1811K
SW501-AFUNCTIONSELECTOR
C1530.01(ML)
R1512.2K
C15210/16
R152560
C1551/50
C15410/16
R153220K
C1510.33/50
R347
C90.022
D2
DS
1SS
133
C25P(CH)
IC1 TA7358AP
1
C123P(CH)
C1015P(CH)
L1TC1
VC
1
R233
C130.022
R4330K
R7820K
C220.022
C23
220/
10
C240.022
C250.022
C29
22/1
6
C391/50
C411/50
C401/50
R121KCF2
10.7MHz
L11
CF3455kHz
R182.7K
R172.7K
IC2FM/AM IF MPX. LA1805
SW103-BFM MODE
VR110K(B)C18
10/16 C170.022
R5100
R1915K
TP1VCO76kHz
R14100K
C34470P
C361500P(P.P)
C353.3/50
C333.3/50
C310.0047(ML)
R912K
L10
R1510K
R1610K
C370.012(ML)
C380.012(ML)
R2010
C1821/50
C1811/50
R184330K
R183330K
C1584.7/50
C1594.7/50
D15
5D
S1S
S13
3
D15
6D
S1S
S13
3
D158DS1SS133D
153
DS
1SS
133
D15
4D
S1S
S13
3
R301100
R13482K
R13382K
R12922K
R13022K
R11222K
R12747K
R12847K
R17422K
R17310K
Q15
6K
TC
3199
GR
SW103DUBBING SPEED/MIC
R17210K
D152DS1SS133
D151DS1SS133
R166560
R16710K
R16910K
R16810K
Q15
3K
TC
3199
GRC156
47/16
R15747K
R16247K
R1604.7K
J151MICIN
R15539K
C1571/50
Q152KTC3199 GR
Q151KTC3199 GRMIC AMP.
R1561K
R161330
R51110K
VC3
TC9
R154560
SW102BEATCANCEL
C307150P
C306390P
C3040.022 C302
0.0022(ML)
R30
410
C30
110
0/16
R303100
C1164.7/50
SO351CD/LINE
R1314.7K
R1324.7K
C145P(CH)
C19300P(P.P)
SW1-EBANDSELECTOR
VC
2TC2
CF1FM BAND PASS
FILTER
R110
C60.0047
C80.022
L2
C70.0047
C50.001
SW1-DBAND SELECTOR
VC4
TC4
SW1-BBANDSELECTOR
L4
L3
SW1-CBANDSELECTOR
TC6
L5
TC8
C150.022
C424P(CH)
C1264.7/50
L10322mH
C131120P
R13515K
D101DS1SS133
R100150 C160
22/16
R3532.2K
R3542.2K
R35147K
R35247K
D1DS1SS133
SW1-ABANDSELECTOR
C13022/16
CN
P10
1
321
CN
P10
2
4321
IC101RECORD/PLAYBACK AMP. TA8189N
C13
315
0P
C134150P
C108330P
C11010/16
R1085.6K
C106330P
C1120.033(ML)
C102470P C104
820P
R106180K
R10456KR102
56
R1104.7K
C1144.7/50
R10356K C101
470P
C105330P
C10
382
0P
R1075.6K
C1110.033(ML)
R105180K
R1094.7K
C10
910
/16
C1134.7/50
C107330P
R13615K
C132120P
L10422mH
R12
110
KR10
156
C1154.7/50
C12
710
00/1
0
C1282.2/50
C121330P
R1152.2K R117
330K
C11710/16
C1190.015(ML)
C1230.0015
L1012.7mH
C1254.7/50
R114180K
R1162.2K
C122330P
R118330K
C1200.015(ML)
C11810/16 R120
390
C1240.0015
R12210K
C12922/16
R12310KR12410K
R12
51M
C3050.0015(ML)
L301
R30647
R30527K
Q301KTC3203 Y
C3030.0056(ML)
R302100
R113180K
L1022.7mH
R119390
L9
L6
L7
L8
SW101-FRECORD/PLAYBACK
SW101-ASW101-B
SW101-CSW101-D
SW101-ERECORD/PLAYBACK
NC
A
SW1
MW
L3,L4: MW/SW1 BAR ANTENNA
R-CH
L-CH
R-CH
ERASE HEAD
PLAYBACK HEAD TAPE2
RECORD/PLAYBACK HEAD
TAPE1
L-CH
FM FRONT END
FINETUNING
IF AD
TAPE
SW2 ANTENNA
MW
SW2
CN
S10
2C
NS
101
FM
SW1
SW2
MW
FM
MPXIN
DE
T O
UT
IF A
D
AM
IN
AM IF
AM OUTFM DET
AM MIX
AM RFOSCAM
FM/SWRODANTENNA
CONDENSER MIC
FM STEREO FM MONO
MIC151BUILT-INMICROPHONE
SW2 OSC.
SW1 OSC.
CD/LINE
TAPE
TAPE
TUNER
TUNER
CD/LINE
MIC NORMAL
HIGH
TUNER
CD/LINE
FM
SW2
SW2
SW2
SW2
SW2
SW1
SW1
SW1
SW1
SW1
SW1
MW
MWMW
MW
MW
SW2
SW1
R P
GND
ALC
REC IN RECNF
RECOUT
RE
C IN
REC NF REC
M/N GND1
VCC
MIX
A/B
PRE
PRE OUT
OUT OUT
OUT
OUT
OUT
MATAL
MATAL
NF
NFCH2/B CH2/A
CH1/B CH1/A
R
P
R
FM TRACKING
MW OSC.
FM
FM
FM
FM
MWFM
R
R
P
P
P
FM
OS
C.
FM DETECTION
MIX
RF AMP
OS
C
L-CH R-CHFM IFIN AGC GND AM/FM
VCOMO/ST+BSTB
2
43
1
21 20 19 18 17 16 15 14 13
1211109 8 7 6 5 4 3 2 1
9 8
7
6 5432
24 23 22 21
11 10 9 8 7 6 5 4 3 2 1
C1122P(CH)
C320.0082(ML)
R83.9K
20 19 18 17 16 15 14 13 12
222324
R P
L-CH
R-CH
BC
IC1 TA7358AP
SW101 RECORD/PLAYBACK
SW103-A
SW1-FBAND SELECTOR
FM IFAM IF
BIAS OSC.
1 2 3
FM SIGNAL MW/SW1/SW2 SIGNAL PLAYBACK SIGNAL RECORD SIGNAL
NOTE:Parts marked with “ ” are important for maintaining the safety of the set.Be sure to replace parts with specified ones for maintaining the safety and performance of the set.
MODEL WF-1000W(BK)WF-1000W(S)
“HOW TO ORDER REPLACEMENT PARTS”To have your order filled promptly and correctly, please furnish thefollowing information.
1. MODEL NUMBER 2. REF. No.3. PART NO. 4. DESCRIPTION
MARK: SPARE PARTS-DELIVERY SECTION
For U.S.A. onlyContact your nearest SHARP Parts Distributor to order.
For location of SHARP Parts Distributor,Please call Toll-Free;1-800-BE-SHARP
Explanation of capacitors/resistors parts codesCapacitorsVCC ....................... Ceramic typeVCK ........................ Ceramic typeVCT ........................ Semiconductor typeVC • • MF ............... Cylindrical type (without lead wire)VC • • MN ............... Cylindrical type (without lead wire)VC • • TV ................ Square type (without lead wire)VC • • TQ ............... Square type (without lead wire)VC • • CY ............... Square type (without lead wire)VC • • CZ ............... Square type (without lead wire)VC • • • • • • • • • J .. The 13th character represents capacity difference.
If there are no indications for the electrolytic capacitors, error is ±20%.
ResistorsVRD ....................... Carbon-film typeVRS........................ Carbon-film typeVRN ....................... Metal-film typeVR • • MF ............... Cylindrical type (without lead wire)VR • • MN............... Cylindrical type (without lead wire)VR • • TV ................ Square type (without lead wire)VR • • TQ ............... Square type (without lead wire)VR • • CY ............... Square type (without lead wire)VR • • CZ ............... Square type (without lead wire)VR • • • • • • • • • J .. The 13th character represents error.
("J" ±5%, "F" ±1%, "D" ±0.5%.)
If there are no indications for other parts, the resistors are ±5%carbon-film type.
PRICERANK DESCRIPTIONNO. PARTS CODE NO. PARTS CODE PRICE
RANK DESCRIPTION
WF-1000W
– 1 –
INTEGRATED CIRCUITS
IC1 VHITA7358AP-1 J AG FM Front End,TA7358APIC2 VHILA1805//-1 J AM FM/AM IF MPX.,LA1805IC101 VHITA8189N/-1 J AM Record/Playback Amp.,TA8189NIC201 VHIBA3822LS-1 J Graphic Equalizer,BA3822LSIC402 VHILA4663//-1 J Power Amp.,LA4663IC501 VHIKIA7812P-1 J AE Voltage Regulator,KIA7812PIC502 VHIKIA7809P-1 J Voltage Regulator,KIA7809P
TRANSISTORS
Q151~153 VSKTC3199GR-1 J AB Silicon,NPN,KTC3199 GRQ156 VSKTC3199GR-1 J AB Silicon,NPN,KTC3199 GRQ181,182 VSKTC3199GR-1 J AB Silicon,NPN,KTC3199 GRQ301 VSKTC3203Y/-1 J AC Silicon,NPN,KTC3203 YQ403,404 VSKTC3199GR-1 J AB Silicon,NPN,KTC3199 GRQ501 VSKTC3203Y/-1 J AC Silicon,NPN,KTC3203 YQ502,503 VSKTC3199GR-1 J AB Silicon,NPN,KTC3199 GRQ504 VSKTA1271Y/-1 J AC Silicon,PNP,KTA1271 Y
DIODES
D1,2 VHDDS1SS133-1 J AB Silicon,DS1SS133D101 VHDDS1SS133-1 J AB Silicon,DS1SS133D151~156 VHDDS1SS133-1 J AB Silicon,DS1SS133D158,159 VHDDS1SS133-1 J AB Silicon,DS1SS133D162 VHDDS1SS133-1 J AB Silicon,DS1SS133D401 VHDDS1SS133-1 J AB Silicon,DS1SS133
! D651 VHDTS4B03GM-1 J AK Silicon,TS4B03GMDZ501 VHEDZ8R2BSB-1 J AB Zener,8.2V,DZ8.2BSBLED1 VHP333ID///-1 J LED,Red,333IDLED502 VHP333ID///-1 J LED,Red,333ID
FILTERS
CF1 RFILR0008AWZZ J AE FM Band Pass FilterCF2 RFILF0106AFZZ J AC FM IF,10.7 MHzCF3 RFILA0057AFZZ J AD AM IF,455 kHz
TRANSFORMER
! T601 RTRNP0001BGZZ J Power
COILS
L1 RCILB0001BGZZ J FM OscillationL2 RCILR0001BGZZ J FM TrackingL3,4 RCILA0001BGZZ J MW/SW1 Bar AntennaL5 RCILA0003BGZZ J SW2 AntennaL6 RCILB0002BGZZ J MW OscillationL7 RCILB0003BGZZ J SW1 OscillationL8 RCILB0004BGZZ J SW2 OscillationL9 RCILI0002BGZZ J FM IFL10 RCILI0003BGZZ J FM DetectionL11 RCILI0001BGZZ J AM IFL101,102 VP-MK272K0000 J 2.7 mH,ChokeL103,104 VP-MK223K0000 J 22 mH,ChokeL301 RCILB0005BGZZ J Bias OscillationL501 VP-MK470K0000 J AB 47 µH,Choke
SHARP CORPORATIONCommunication Systems GroupQuality & Reliability Control CenterHigashihiroshima, Hiroshima 739-0192, Japan
Printed in Japan
COPYRIGHT 1999 BY SHARP CORPORATION
ALL RIGHTS RESERVED.
No part of this publication may be reproduced,stored in a retrieval system, or transmitted inany from or by any means, electronic, mechanical,photocopying, recording, or otherwise, withoutprior written permission of the publisher.