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Sharp 81FW-53E Manual

Pal/ secam b/g dk system colour television
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ELECTRICAL SPECIFICATION.......................2
IMPORTANT SERVICE NOTES.......................3
SERVICE ADJUSTEMENTS.............................4
PRINTED WIRING BOARDS............................7
SERVICE MANUAL
PAL / SECAM
B/G D/K
MODELS
In the interests of user safety (required by safety
regulations in some countries) the set should restored
to its original condition and only parts identical to
those specified should be used.
CONTENTS
SHARP CORPORATION
1
DA-50W
SYSTEM COLOUR TELEVISION
60FW-53E
70FW-53E
81FW-53E
SCHEMATIC DIAGRAM.................................24
BLOCK DIAGRAM..........................................36
PART LIST......................................................39
60FW-53E
70FW-53E
81FW-53E
SEJB**FW53E00
Issued: 1st Dec. '99
CHASSIS

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Summary of Contents for Sharp 81FW-53E

  • Page 1 60FW-53E 70FW-53E 81FW-53E SERVICE MANUAL SEJB**FW53E00 Issued: 1st Dec. '99 DA-50W CHASSIS PAL / SECAM SYSTEM COLOUR TELEVISION B/G D/K 60FW-53E 70FW-53E 81FW-53E MODELS In the interests of user safety (required by safety regulations in some countries) the set should restored to its original condition and only parts identical to those specified should be used.

  • Page 2: Electrical Specifications

    81FW-53E)........10W (MPO) L’............41.9MHz L, D/K...........30.9MHz Speakers B/G............31.9MHz Ω Left / Right......8 12W, 4 x 10cm Centre (70FW-53E, 81FW-53E) ....•Aerial Input Impedance Ω ..........7 12W, 6 x 13cm VHF/UHF......75 ohm Unbalanced Convergence......Self Converging System •Tuning Ranges....48.25MHz thru 855.25 MHz Focus........Bi-Potencial Electrostatic CATV Special Channels Sweep Deflection...........Magnetic...

  • Page 3: Important Service Notes

    60FW-53E 70FW-53E 81FW-53E IMPORTANT SERVICE NOTES Maintenance and repair of this receiver should be done by qualified service personnel only. SERVICING OF HIGH VOLTAGE SYSTEM AND PICTURE TUBE When servicing the high voltage system, remove static charge from it by connecting a 10K ohm resistor in series with an insulated wire (such as test probe) between picture tube ground tag and high voltage lead.

  • Page 4: Service Adjustments

    60FW-53E 70FW-53E 81FW-53E SERVICE ADJUSTMENTS All the adjustments required for this chassis will be done in Service Mode, except G2 and Focus. • • • • • G2 ADJUSTMENT 145V 1.Receive cross hatch pattern signal. 2. Set contrast to 80/100 and brightness to 40/100.
  • Page 5 60FW-53E 70FW-53E 81FW-53E 1− 1− 1− 1− HORIZONTAL SHIFT 1− a) Internal pattern signal will be displayed. b) When volume-up button is pressed, picture moves to the left. c) When volume-down button is pressed, picture moves to the right. d) Adjust the horizontal location to obtain picture centering (fig. 2).
  • Page 6 60FW-53E 70FW-53E 81FW-53E 9− 9− 9− 9− 9− S-CORRECTION a) Internal pattern signal will be displayed. b) When volume-up button is pressed, upper and lower scanning decreases, and center scanning increases. c) When volume-down button is pressed, upper and lower scanning increases, and center scanning decreases.
  • Page 7 DA50W PWBs Module C.T.R. Front A / V 60FW53E QPWBF7241BMNC QPWBF7292BMN0 Power Switch (60FW53E) 70FW53E (60FW53E) QPWBF7291BMN0 (60FW53E) QPWBF7273BMN1 QPWBF7267BMN0 81FW53E QPWBF7266BMN0 (70 / 81FW53E) (70 / 81FW53E) (70 / 81FW53E) Dinamic Focus Central (81FW53E only) Speaker QPWBF7285MN0 QPWBF7271BMN0 (70 / 81FW53E only) Mother Board QKITP7240BMNC DA50W...
  • Page 8 60 / 70 / 81FW-53E MOTHER UNIT PWB COMPONENT SIDE. 60FW-53E CRT UNIT, PWB COMPONENT SIDE. K7240BM QKITP7240BMNC L317 IC1008 R778 C353 L352 LP701 J401 C356 R703 D1001 D1002 (SW2) S702 S704 C363 C361 S703 S705 C701 R791 FB1002 R721...
  • Page 9 60 / 70 / 81FW-53E MOTHER UNIT PWB COPPER SIDE / 60FW-53E CRT UNIT, PWB COPPER SIDE. QKITP7240BMNC L317 R353 J313 IC301 C337 L352 M1000 C359 R778 LP701 R308 J401 C336 D1002 C338 R789 R703 D724 K (CC) (SS) C733...
  • Page 10 81FW-53E DINAMIC FOCUS UNIT, PWB COMPONENT SIDE. (MO) (RT) L6103 R1602 R1603 C1605 R1607 R1623 R1606 D1604 R1621 R1612 T1602 C1604 IC1601 Q1602 T1601 R1613 R1625 R1601 C1603 R1624 C1606 R1619 R1614 K7271BM F7271BMN0...
  • Page 11 81FW-53E DINAMIC FOCUS UNIT PWB COPPER SIDE. (MO) (RT) L6103 C1605 R1607 R1606 R1603 R1602 D1601 R1623 C1604 R1621 (FF) D1606 L6102 T1602 R1625 R1601 C1603 R1618 R1624 C1606 R1619 C1610 C1602 C1601 R1614 F7271BMN0...
  • Page 12 60FW-53E POWER UNIT, PWB COMPENT SIDE. D6751 D6752 OPC1 LP6701 S6705 S6702 S6703 S6704 R6701 IC6701 C6702 C6703 C6704 C6705 C6715 # CAUTION # THE ACTIVE SECTION IS INDICATED WITH THE " " SYMBOL F7291BMN0 (PW) C6716 K7291BM T3.15AH F6701...
  • Page 13 60FW-53E POWER UNIT, PWB COPPER SIDE. IC6701 D6752 D6751 LP6701 S6705 S6703 S6702 S6704 R6701 S6701 C6715 C6705 C6704 C6703 C6702 F7291BMN0 F6701 T3.15AH...
  • Page 14 70 / 81FW-53E POWER UNIT PWB COMPONENT SIDE. D6751 D6752 OPC1 LP6701 IC6701 R6701 S6705 S6702 S6703 S6704 (PW) S6701 F6701 D6702 F7266BMN0 K7266BM T3.15AH...
  • Page 15 70 / 81FW-53E POWER UNIT PWB COPPER SIDE. R6738 IC6701 D6751 C6715 LP6701 S6702 S6705 S6704 S6703 R6739 R6701 C6702 C6705 C6703 C6704 S6701 T3.15AH F7266BMN0 D6702...
  • Page 16 70 / 81FW-53E CRT UNIT PWB COMPONENT SIDE. K7273BM F7273BMN1 (RT) (MO) L1604 C1807 ESPA¥A J327 IC1801 (L2) R1821 Q912 R1832 (L3) R1820 C1814 C1825 D1809 D5405 C1811 R5428 R1841 Q5407 R5420 C5408 Q5408 D5404 C5413 C5417 R5426 C5412 R5423...
  • Page 17 70 / 81FW-53E CRT UNIT PWB COPPER SIDE.
  • Page 18 60FW-53E A/V UNIT, PWB COMPENT SIDE. J401 C337 C428 C429 C336 R317 L318 R449 R316 (SS) (FV) (CC) K7292BM F7292BMN0 ESPA¥A...
  • Page 19 60FW-53 A/V UNIT, PWB COPPER SIDE. J401 C431 C339 C337 C429 C428 C336 L318 R317 R449 R316 (CC) (FV) (SS) F7292BMN0...
  • Page 20 70 / 81FW-53E FRONT A/V UNIT PWB COMPONENT SIDE. J401 R449 L318 (SS) (FV) (CC) F7267BMN0 K7267BM...
  • Page 21 70 / 81FW-53E FRONT A/V UNIT PWB COPPER SIDE. C336 C337 C429 C428 R449 L318 (CC) (FV) (SS) F7267BMN0...
  • Page 22 70 / 81FW-53E CENTRAL SPEAKER UNIT PWB COMPONENT SIDE. (VS) L1303 D1303 C1306 C1315 L1302 L1301 D1304 C1309 C1310 C1305 (SB) F7285BMN0 K7285BM...
  • Page 23 70 / 81FW-53E CENTRAL SPEAKER UNIT PWB COPPER SIDE. (SF) C1306 (VS) L1303 D1303 (CS) C1315 L1302 D1304 C1311 C1309 R1301 C1305 C1308 C1301 C1302 R1310 R1307 R1304 R1309 F7285BMN0 R1308...

  • Page 24: Description Of Schematic Diagram

    60FW-53E DESCRIPTION OF SCHEMATIC DIAGRAM 70FW-53E 81FW-53E NOTE: SAFETY NOTE: 1. The unit of resistance «ohm»is omitted 1. DISCONNECT THE AC PLUG FROM THE AC (K=1000 ohms. M= Megaohm). OUTLET BEFORE REPLACING PARTS. 2. All resistors are 1/8 watt. unless otherwise noted.
  • Page 25 DA50W SCHEMATIC DIAGRAMS. Module C.T.R. Front A / V 60FW53E 60FW53E Power Switch 70FW53E 60FW53E 70 / 81FW53E 60FW53E 70 / 81FW53E 81FW53E 70 / 81FW53E Dinamic Focus Central (81FW53E only) Speaker (70 / 81FW53E only) Mother Board 60FW53E 70 / 81FW53E SAFETY NOTES OTHER NOTES WAVE FORMS...
  • Page 26 HASTA INF. 422 25-10-99 HASTA INF. 421 PLACA BASE R616 25-10-99 HASTA INF. 418 MATERIAL ACABADO ESCALA (1W) 07-10-99 HASTA INF. 429 25-10-99 HASTA INF. 435 FECHA REVISIONES CZ2107BM DIS. DIB. CONT. V.B. MODELO FECHA CZ2109BM SHARP 60FW53E 24-09-99 ELECTRONICA ESPANA S.A.
  • Page 27 70/81FW-53E MOTHER UNIT SCHEMATIC DIAGRAM. L350 3.3uH (AA) (RC) (SW1) (SW2) CM0672FC GN0341 GN0341 GN0341 GN0341 GN0341 (HD) (SS) (CC) (FV) (CF) GN0341 GN0341 GN0241 GN0241 IC301 +16V TDA7480 R350 C351 C352 R352 C354 220uF 100nF C350 100pF (25V) LP1001...
  • Page 28 81FW-53E FOCUS SCHEMATIC DIAGRAM. (FF) 0105 0105 R1614 T1602 NZ0575BM R-Z0001BM C1601 (MO) 1000pF C1602 1000pF C1603 R1601 D1601 C1612 DX0484 220uF (MA) +13V R1610 (25V) R1602 R1603 R1604 R1611 -13V Q1601 100K 100K 100K R1605 (3W) (3W) (3W) C1604...
  • Page 29 S6701 P0600 R6701 120K 1/2W R6702 120K 1/2W NOMBRE CODIGO FRONTAL POWER MATERIAL ACABADO ESCALA (RC) (SW1) (SW2) (OPC) (ST) GN0207 GN0341 GN0341 GN0341 GN0341 GN0341 FECHA REVISIONES DIS. DIB. CONT. V.B. MODELO FECHA SHARP 27-09-99 60FW53E ELECTRONICA ESPANA S.A.
  • Page 30 70/81FW-53E FRONTAL POWER SCHEMATIC DIAGRAM. LP6701 ONLY 66FW54H P0001 M6701 IC6708 TSL235 CU0205BM R6739 R6738 S6702 S6703 S6704 S6705 GN0304 KZ0079 KZ0079 KZ0079 KZ0079 D6751 D6752 PX0105 PX0105 C6715 100nF F6701 FS-C3226 R6751 S6701 P0600 R6701 120K D6701 1/2W R6702...
  • Page 31 C1815 SCREEN Q909 EX0553 100nF (16V) 2SA1037 C1820 22pF Q907 R1815 CRT GND SOCKET 2SC2412 R1816 R1839 QCNW-2710 +13V NOMBRE CODIGO PLACA TRC MATERIAL ACABADO ESCALA REVISIONES FECHA DIS. DIB. CONT. V.B. MODELO FECHA SHARP 27-09-99 60FW53E ELECTRONICA ESPANA S.A.
  • Page 32 70/81FW-53E CRT SCHEMATIC DIAGRAM. +10V R1802 R1803 ONLY 81FW53ESE Q902 VB76ESF3113*N R1804 R1822 2SC2412 ONLY 70FW53ESE (1/2W) R1821 Q903 VB66ESF0213*N 2SA1037 (1/2W) ONLY 81FW53E Q901 R1820 C1822 2SC2412 R1831 R1833 R1835 VB76QAG280W12 22pF (1/2W) H.V. R1805 IC1801 ONLY 70FW53E 27.5 KV...
  • Page 33 S6701 P0600 R6701 120K 1/2W R6702 120K 1/2W NOMBRE CODIGO FRONTAL POWER MATERIAL ACABADO ESCALA (RC) (SW1) (SW2) (OPC) (ST) GN0207 GN0341 GN0341 GN0341 GN0341 GN0341 FECHA REVISIONES DIS. DIB. CONT. V.B. MODELO FECHA SHARP 27-09-99 60FW53E ELECTRONICA ESPANA S.A.
  • Page 34 70/81FW-53E FRONTAL SIGNAL SCHEM. DIAGR. J401 0015B JAKJ0047CEZZ C428 C429 1543 C336 C337 R449 10nF 10nF (1/4W) L318 3.3uH L317 R316 R317 3.3uH (DF) (HD) (SS) (FV) (CC) GN0341 GN0341 GN0241 GN0241 NOMBRE CODIGO FRONTAL SIGNAL MATERIAL ACABADO ESCALA 81FW53E/SE...
  • Page 35 70/81FW-53E CENTRAL SPEAKER SCHEMATIC DIAGR. D1303 (VS) EX0411 IC1300 VHIBA4558 R1304 GN0341 D1304 EX0411 C1310 L1302 220uF 3.3uH (25V) (CF) +16V IC1302 C1311 TDA7480 100nF R1307 R1308 R1312 C1312 (SF) C1304 100pF 100nF L1301 C1302 R1309 330nF P0278 C1309 100nF...
  • Page 36 60FW-53E BLOCK DIAGRAM SF 201 IC 305 TH 201 FM AUDIO MSP 3410 D SF 202 TUNER IC 201 CVBS +16V TDA 4472 P E RIPHERICS SF 203 AUDIO L/R IC 301 AUDIO OUT L Q 304 -16V AUDIO Q 302 PROTECTOR Q 303 +16V...
  • Page 37 70FW-53E BLOCK DIAGRAM CENTRAL SPEAKER UNIT +16V SF 201 IC 305 IC1302 CENTER TH 201 FM AUDIO MSP 3410 D -16V SF 202 TUNER IC 201 CVBS +16V TDA 4472 P E RIPHERICS SF 203 AUDIO L/R IC 301 AUDIO OUT L Q 304 -16V AUDIO...
  • Page 38 81FW-53E BLOCK DIAGRAM CENTRAL SPEAKER UNIT +16V SF 201 IC 305 IC1302 CENTER TH 201 FM AUDIO MSP 3410 D -16V SF 202 TUNER IC 201 CVBS +16V TDA 4472 P E RIPHERICS SF 203 AUDIO L/R IC 301 AUDIO OUT L...

  • Page 39: Part List

    60FW-53E 70FW-53E 81FW-53E PART LIST Due to the introduction of SAP system in SEES, Service Part List is not currently available. As soon as we get the information, it will be sent to you in an updated Service Manual.

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