Loewe FL38 Service Manual
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Loewe FL38 Service Manual

Loewe FL38 Service Manual

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In the interests of user-safety (Required by safety regulations in some countries) the set should be restored
to its original condition and only parts identical to those specified should be used.
IMPORTANT SERVICE SAFETY PRECAUTION..............................................................................................2
ELECTRICAL SPECIFICATIONS......................................................................................................3
OPERATION MANUAL......................................................................................................................4
OUTLINE DIMENSION FIGURE.......................................................................................................5
REMOVING OF MAJOR PARTS......................................................................................................6
ADJUSTING PROCEDURE OF EACH SECTION............................................................................8
TROUBLE SHOOTING TABLE.........................................................................................................9
CHASSIS LAYOUT..........................................................................................................................14
BLOCK DIAGRAM...........................................................................................................................16
WAVE FORMS.................................................................................................................................20
DESCRIPTION OF SCHEMATIC DIAGRAM..................................................................................22
SCHEMATIC DIAGRAM..................................................................................................................23
PRINTED WIRING BOARD ASSEMBLIES.....................................................................................30
CABINET AND MECHANICAL PARTS...........................................................................................35
PACKING OF THE SET..................................................................................................................36
SERVICE MANUAL
LCD COLOUR TELEVISION
Art. Nr. 60415 A60
MODEL
CONTENTS
1
230-90413.917
FL38
(LC-15A2L)
Page
FL38
(LC-15A2L)

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  • Page 1: Table Of Contents

    FL38 (LC-15A2L) 230-90413.917 SERVICE MANUAL LCD COLOUR TELEVISION Art. Nr. 60415 A60 FL38 (LC-15A2L) MODEL In the interests of user-safety (Required by safety regulations in some countries) the set should be restored to its original condition and only parts identical to those specified should be used.
  • Page 2 396-88038050 U1002 TUNER-ZF M MULTISYSTEM MN/BG-DK TUNER 260-87271050T DRUCKSACHEN OPERATING INSTRUCTIONS N 0001 BAN D-I FL38 LCD-TV E3001 OPERATING INSTRUCT. 233-29035 N 0001 BAN NL-F FL38 LCD-TV E3001 OPERATING INSTRUCT. 233-29035010 N 0001 BAN GB-E FL38 LCD-TV E3001 OPERATING INSTRUCT.
  • Page 3 POSNR. KURZTEXT 60415A60 ENTF-DAT. BESTELLNR. ITEMNMB DESCRIPTION LIST-PART-NMB LAST-DATE I1003 ICMOS M27C2001-10 L3001 V1.3 INTEGRATED CIRCUIT 349-28565460 I1004 IC TEA5114A INTEGRATED CIRCUIT 349-15212 I1005 IC VOLT.REGULAT TO252 9V OA5 LV030 INTEGRATED CIRCUIT 350-29008 I1006 ICMOS S-RAM W24257 AS-35 LV030 INTEGRATED CIRCUIT 350-28569 I1008 ICMOS 74V1T00S SOT-23-5L NAND LV030...
  • Page 4 POSNR. KURZTEXT 60415A60 ENTF-DAT. BESTELLNR. ITEMNMB DESCRIPTION LIST-PART-NMB LAST-DATE W1017 EINBAUBUCHSE 10-POL QUADRAT. SOCKET 323-28932 DIODEN DIODES D4203 DIOVC 0A02 30V SOD323 BB640 LV030 DIODE 351-26568 D4204 DIOVC 0A02 30V SOD323 BB535 LV030 DIODE 351-26570 D4222 DIOVC 0A02 30V SOD323 BB640 LV030 DIODE 351-26568 D4241...
  • Page 5 POSNR. KURZTEXT 60415A60 ENTF-DAT. BESTELLNR. ITEMNMB DESCRIPTION LIST-PART-NMB LAST-DATE D1101 DIODE 1SS250-1E DIODE 351-90354948 D1201 DIODE DAN222-1 DIODE 351-90354946 D1202 DIODE ZD EX0227CEZZ DIODE 351-90354951 D201 DIODE DAN222-1 DIODE 351-90354946 D4009 DIODE ZD EX0879CEZZ DIODE 351-90354966 D4010 DIODE ZD EX0879CEZZ DIODE 351-90354966 D4018...
  • Page 6 POSNR. KURZTEXT 60415A60 ENTF-DAT. BESTELLNR. ITEMNMB DESCRIPTION LIST-PART-NMB LAST-DATE Q1029 TRANS BCX69-25 TRANSISTOR 344-24714 Q1030 TRANS BF 840 TRANSISTOR 344-28018 Q1031 TRANS BF550 SOT23 TRANSISTOR 344-23563 Q1032 TRANS BC847BW SOT323 TRANSISTOR 344-27272 Q1033 TRANS BC857BW SOT323 LV030 TRANSISTOR 344-28404 Q1101 TRANS 2SA1729-1 TRANSISTOR 344-90354943...
  • Page 7 POSNR. KURZTEXT 60415A60 ENTF-DAT. BESTELLNR. ITEMNMB DESCRIPTION LIST-PART-NMB LAST-DATE BUCHSEN/KABELABDECKUNG F.RUECKWAND COVER 568-90355906 KABELBAUM 4-POL. CONNECTING CABLE 171-90354995 KABELBAUM 20-POL. CONNECTING CABLE 171-90354997 KABELBAUM 50-POL. CONNECTING CABLE 171-90354994 KABELBAUM 5-POL. CONNECTING CABLE 171-90354993 LAMPEN-SET INCANDESCENT LAMP 383-90354998 KABELBAUM 11-POL. CONNECTING CABLE 171-90354992 FB1202 SPULE...
  • Page 8 POSNR. KURZTEXT 60415A60 ENTF-DAT. BESTELLNR. ITEMNMB DESCRIPTION LIST-PART-NMB LAST-DATE L4543 SPULE COIL 297-27548001 L4546 SPULE COIL 297-27559001 L4701 DR-RA 0U68 K 4X3X4 5R0 LV298-21/020 CHOKE 298-27591020 L4816 SPULE LV297-27743 COIL 297-27743 L4831 DR-RA 6U8 J 4X3X4 5R0 LV298-21/020 CHOKE 298-27588020 L701 SPULE CHOKE...
  • Page 9 396-88038050 U1002 TUNER-ZF M MULTISYSTEM MN/BG-DK TUNER 260-87271050T DRUCKSACHEN OPERATING INSTRUCTIONS N 0001 BAN D-I FL38 LCD-TV E3001 OPERATING INSTRUCT. 233-29035 N 0001 BAN NL-F FL38 LCD-TV E3001 OPERATING INSTRUCT. 233-29035010 N 0001 BAN GB-E FL38 LCD-TV E3001 OPERATING INSTRUCT.
  • Page 10 POSNR. KURZTEXT 60415A70 BESTELLNR. ENTF-DAT. ITEMNMB DESCRIPTION LIST-PART-NMB LAST-DATE I1003 ICMOS M27C2001-10 L3001 V1.2 INTEGRATED CIRCUIT 349-28565451 I1003 ICMOS M27C2001-10 L3001 V1.3 INTEGRATED CIRCUIT 349-28565460 I1004 IC TEA5114A INTEGRATED CIRCUIT 349-15212 I1005 IC VOLT.REGULAT TO252 9V OA5 LV030 INTEGRATED CIRCUIT 350-29008 I1006 ICMOS W24257# SOP20 55N S-RAM LV030...
  • Page 11 POSNR. KURZTEXT 60415A70 BESTELLNR. ENTF-DAT. ITEMNMB DESCRIPTION LIST-PART-NMB LAST-DATE W1006 CHINCH-BUCHSE GELB 8MM GOLDPLATTIERT SOCKET 323-29009 W1010 CHINCH-BUCHSE WEISS 8MM GOLDPLATTIERT SOCKET 323-29011 W1011 CHINCH-BUCHSE ROT 8MM GOLDPLATTIERT SOCKET 323-29010 W1016 KOPFHOERERBUCHSE 3,5MM HORIZ. SOCKET 323-24591 W1017 EINBAUBUCHSE 10-POL QUADRAT. SOCKET 323-28932 DIODEN...
  • Page 12 POSNR. KURZTEXT 60415A70 BESTELLNR. ENTF-DAT. ITEMNMB DESCRIPTION LIST-PART-NMB LAST-DATE BATTERIEDECKEL ARKTIS COVER 756-87215001 BATTERIEFEDER VERGOLDET SPRING 739-87217002 D 104 DIODE BAS216 SOD110 DIODE 351-27279 D 105 DIODE BAS216 SOD110 DIODE 351-27279 13.03.2002 D 117 LG T679 COUPLER 353-27021 D 118 LG T679 COUPLER 353-27021...
  • Page 13 POSNR. KURZTEXT 60415A70 BESTELLNR. ENTF-DAT. ITEMNMB DESCRIPTION LIST-PART-NMB LAST-DATE D4832 DIODE BA 592 SOD323 DIODE 351-25810 D702 DIODE SFPB56-2E DIODE 351-90354947 D703 DIODE 1SS250-1E DIODE 351-90354948 D704 DIODE 1SS250-1E DIODE 351-90354948 D705 DIODE DAN222-1 DIODE 351-90354946 D706 DIODE SFPB74-2E DIODE 351-90354949 D707 DIODE DAN222-1...
  • Page 14 POSNR. KURZTEXT 60415A70 BESTELLNR. ENTF-DAT. ITEMNMB DESCRIPTION LIST-PART-NMB LAST-DATE Q302 TRANS 2SA1162Y-1 TRANSISTOR 344-90354935 Q303 TRANS DTC314TK-1 TRANSISTOR 344-90354936 Q304 TRANS DTC314TK-1 TRANSISTOR 344-90354936 Q305 TRANS DTC314TK-1 TRANSISTOR 344-90354936 Q308 TRANS DTC144EE-1 TRANSISTOR 344-90354937 Q4106 TRANS DTC144EE-1 TRANSISTOR 344-90354937 Q4107 TRANSISTOR UMG4/////-1 TRANSISTOR 344-90354970...
  • Page 15 POSNR. KURZTEXT 60415A70 BESTELLNR. ENTF-DAT. ITEMNMB DESCRIPTION LIST-PART-NMB LAST-DATE FB708 SPULE CHOKE 296-90354962 FB709 SPULE CHOKE 296-90354963 L4192 LUFTSPULE COIL 297-27573 18.07.2000 L4192 SPULE COIL 297-27573001 15.01.1999 L4192 DR. 270N J 0603 SMD LV030 CHOKE 296-28579 L4193 LUFTSPULE COIL 297-27571 L4201 LUFTSPULE COIL...
  • Page 16 POSNR. KURZTEXT 60415A70 BESTELLNR. ENTF-DAT. ITEMNMB DESCRIPTION LIST-PART-NMB LAST-DATE Q4310 TRANS BF1100WR SOT343 TRANSISTOR 344-27268 Q4410 TRANS BF1100WR SOT343 TRANSISTOR 344-27268 Q4836 TRANS BC847B SOT23 TRANSISTOR 344-14974 Q4853 TRANS BC847BW SOT323 TRANSISTOR 344-27272 W1001 FOLIENSTECKVERB. 20-POL RM0,5 CONTACT LEDGE 326-28933 W1002 STIFTW.VERT 7-P NAT 2R50 EH LV326-11 CONTACT LEDGE...

  • Page 17: Important Service Safety Precaution

    FL38 (LC-15A2L) IMPORTANT SERVICE SAFETY PRECAUTION Service work should be perfomed only by qualified service technicians who are thoroughly familiar with all safety checks and the servicing guidelines which follow: WARNING • Use an AC voltmeter having with 5000 ohm per volt, or higher, sensitivity or measure the AC voltage drop across 1.

  • Page 18: Electrical Specifications

    FL38 (LC-15A2L) ELECTRICAL SPECIFICATIONS Items .............. 15" LCD COLOUR TV, Model: LC-15A2L LCD panel ....................15" TFT LCD Number of pixels ..................921,600 dots Video colour system ................ PAL/NTSC/SECAM TV FUNCTION TV Standard (CCIR) .................. BG/DK/I/L TV Tuning System ...............Auto preset 100 ch.

  • Page 19: Operation Manual

    FL38 (LC-15A2L) OPERATION MANUAL Front view Controls To change the vertical angle of the LCD TV set, tilt the screen up to 10 degrees forward or 20 degrees backward. The TV set can also be rotated 90 degrees horizontally. Please adjust the angle so that the TV set can be watched most comfortably.

  • Page 20: Outline Dimension Figure

    FL38 (LC-15A2L) OUTLINE DIMENSION FIGURE Units: mm...

  • Page 21: Removing Of Major Parts

    FL38 (LC-15A2L) REMOVING OF MAJOR PARTS 1. Insert your finger into the center of the terminal cover <<Disassembly of the main PWB>> and pull it toward you to detach the terminal cover. 1. Disconnect the flexible cable connectors "11" and Remove the screws installing a stand.
  • Page 22 FL38 (LC-15A2L) • Caution for handling the LCD panel <<Disassembly of LCD Panel>> 1. Work in a clean room. (Humidity: 50% or more) 1. Remove the six LCD unit fixing screws. 2. A worker must wear arm bands. 2. Remove the panel shield plate.

  • Page 23: Adjusting Procedure Of Each Section

    FL38 (LC-15A2L) ADJUSTING PROCEDURE OF EACH SECTION [1] Entering the MAIN side adjustment process mode There are three methods below. 1) Press the “Adjustment process key” on the remote control after turning on the power. 2) Pressing both the M key and the TV/VIDEO key on the main body, turn on the power. Then, press the volume DOWN key and the tuning UP key at the same time.

  • Page 24: Trouble Shooting Table

    FL38 (LC-15A2L) TROUBLE SHOOTING TABLE...
  • Page 25 FL38 (LC-15A2L) TROUBLE SHOOTING TABLE (Continued)
  • Page 26 FL38 (LC-15A2L) TROUBLE SHOOTING TABLE (Continued)
  • Page 27 FL38 (LC-15A2L) TROUBLE SHOOTING TABLE (Continued)
  • Page 28 FL38 (LC-15A2L) TROUBLE SHOOTING TABLE (Continued)

  • Page 29: Chassis Layout

    FL38 (LC-15A2L) CHASSIS LAYOUT MAIN Unit (Side-A) P701 P751 P301 T751 IC301 T701 T752 C302 P305 P2003 P2004 P304 IC2001 IC2007 IC1201 IC901 IC1101 IC1100 P752 SC1201 MAIN Unit (Side-B) IC701 5V REG. IC702 DC/DC CONTROL IC201 IC704 OP AMP 3.3V REG.
  • Page 30 FL38 (LC-15A2L) TERMINAL Unit IC11 IC10 OPERATION Unit P4004 S4701 4006 4003 4002 4007 4008 4004 R/C RECEIVER Unit 4102 4101...

  • Page 33: Waveforms

    FL38 (LC-15A2L) WAVEFORMS A. V0 B. V16 C. V32 D. V48 E. V63 F. B-5.5 G. CSCOM H. GCK I. GSP J. VACT K. HC L. HSY...
  • Page 34 FL38 (LC-15A2L) M. VSY N. CK O. SPIO P. SPOI Q. HG R. IC2005 S. CSYNC T. VIDEO...

  • Page 35: Description Of Schematic Diagram

    FL38 (LC-15A2L) DESCRIPTION OF SCHEMATIC DIAGRAM VOLTAGE MEASUREMENT CONDITION: 1. When the exclusive-use AC adapter is used, the colour bar signal of colour bar generator for service is input to get the normal screen. When the audio is minimized, the voltage value is measured with the 20 k /V tester.
  • Page 36 FL38 (LC-15A2L) OPERATION and R/C RECEIVER Units OPERATION R/C RECEIVER...

  • Page 40: Printed Wiring Board Assemblies

    FL38 (LC-15A2L) PRINTED WIRING BOARD ASSEMBLIES MAIN Unit (Side-A)
  • Page 41 FL38 (LC-15A2L) MAIN Unit (Side-B)
  • Page 42 FL38 (LC-15A2L) TERMINAL Unit (Side-A)
  • Page 43 FL38 (LC-15A2L) TERMINAL Unit (Side-B)
  • Page 44 FL38 (LC-15A2L) OPERATION Unit (Wiring Side) R/C RECEIVER Unit (Wiring Side)

  • Page 45: Cabinet And Mechanical Parts

    FL38 (LC-15A2L) CABNET AND MECHANICAL PARTS 2-13 2-10 2-12 TERMINAL Unit OPERATION Unit 2-10 MAIN Unit 3-10 1-16 1-10 1-17 1-14 1-13 1-10 1-17 1-16 1-12 1-10 1-15 R/C RECEIVER Unit 1-11...

  • Page 46: Packing Of The Set

    FL38 (LC-15A2L) PACKING OF THE SET AC Cord AC Adapter Buffer Material Remote Control Battery (2 pcs.) Operation Manual Wrapping Paper for Glass Packing Material (Rear) Wrapping Paper Packing Material (Front) Buffer Material Sponge PP Label Packing Case PP Label...
  • Page 51 Node: t141 Node: t141 Node: t141 User: eg1 User: eg1 User: eg1 Directory: /cad/eg1/layout-v2/lc15a2e/ka314s3/layout Directory: /cad/eg1/layout-v2/lc15a2e/ka314s3/layout Directory: /cad/eg1/layout-v2/lc15a2e/ka314s3/layout File: gaia314.pld File: gaia314.pld File: gaia314.pld Time: 17:18 04-feb-2002 Time: 17:15 04-feb-2002 Time: 17:19 04-feb-2002 Factor: 1.0 Factor: 1.0 Factor: 1.0 Comment: lc15a2e s3 p6 fukamizu Comment: lc15a2e s3 p1 fukamizu Comment: a314 s3 s1 fukamizu...
  • Page 52 Node: t141 Node: t141 Node: t141 User: eg1 User: eg1 User: eg1 Directory: /cad/eg1/layout-v2/lc15a2e/ka314s3/layout Directory: /cad/eg1/layout-v2/lc15a2e/ka314s3/layout Directory: /cad/eg1/layout-v2/lc15a2e/ka314s3/layout File: gaia314.pld File: gaia314.pld File: gaia314.pld Time: 17:18 04-feb-2002 Time: 17:15 04-feb-2002 Time: 17:19 04-feb-2002 Factor: 1.0 Factor: 1.0 Factor: 1.0 Comment: lc15a2e s3 p6 fukamizu Comment: lc15a2e s3 p1 fukamizu Comment: a314 s3 s6 fukamizu...

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