Philips-LX-600-Service-Manual(1) 电路图 维修手册.pdf

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1、LX600/01/69 Copyright 2004 Philips Consumer Electronics B.V. Eindhoven, The Netherlands All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, or otherwise without the prior p

2、ermission of Philips. Published by BB- ET0412 Service Audio Printed in The Netherlands Subject to modification GB 3139 785 30631 Surround Receiver Version 1.1 TABLE OF CONTENTS Page Location of PC Boards 50Hz (for / 01) Power Supply Rating110- 127/ 220- 240V; 50/60Hz Switchable (for / 69) Power Cons

3、umption180 W Dimensions (w x h x d)435mm x 54mm x 388mm Weight4.16 kg SPEAKERS Front Speakers / Rear (surround) speaker System2- way. closed box system Impedance3W Speaker drivers18mm cone dome tweeter Frequency response150 Hz - 20 kHz Dimensions (w x h x d)93mm x 169mm x 65mm Weight0.75 Kg / each C

4、ENTER SPEAKER System2- way. closed box system Impedance3W Speaker drivers18mm cone dome tweeter Frequency response150 Hz - 20 kHz Dimensions (w x h x d)245mm x 93mm x 70mm Weight1.37 Kg PASSIVE SUBWOOFER Frequency response30 Hz - 150 kHz Dimensions (w x h x d)156mm x 350mm x 360mm TUNER AREA: RadioF

5、ans.CN 收音机爱 好者资料库 1- 4 LF Generator ? e.g. PM5110 ? Recorder Use Universal Test Cassette CrO2SBC419 4822 397 30069 LEVEL METER? e.g. Sennheiser UPM550? with FF- filter S/N and distortion meter? e.g. Sound Technology ST1700B L R DUT or Universal Test Cassette FeSBC420 4822 397 30071 ? LEVEL METER? e.

6、g. Sennheiser UPM550? with FF- filter S/N and distortion meter? e.g. Sound Technology ST1700B L R DUT CD? ? Use Audio Signal Disc? (replaces test disc 3)? ? ? SBC429 4822 397 30184 Bandpass? 250Hz- 15kHz? e.g. 7122 707 48001 LF Voltmeter? e.g. PM2534 DUT S/N and distortion meter? e.g. Sound Technolo

7、gy ST1700B Frame aerial? e.g. 7122 707 89001 Tuner AM (MW,LW) To avoid atmospheric interference all AM- measurements have to be carried out in a Faradays cage.? Use a bandpass filter (or at least a high pass filter with 250Hz) to eliminate hum (50Hz, 100Hz). RF Generator ? e.g. PM5326 Ri=50 ? ? Band

8、pass? 250Hz- 15kHz? e.g. 7122 707 48001 LF Voltmeter? e.g. PM2534 DUT RF Generator ? e.g. PM5326 S/N and distortion meter? e.g. Sound Technology ST1700B Use a bandpass filter to eliminate hum (50Hz, 100Hz) and disturbance from the pilottone (19kHz, 38kHz). Ri=50 ? ? Tuner FM MEASUREMENT SETUP 1- 5 S

9、ervice Tools: Universal Torx driver holder .4822 395 91019 Torx bit T10 150mm .4822 395 50456 Torx driver set T6- T20 .4822 395 50145 Torx driver T10 extended .4822 395 50423 Compact Disc: SBC426/426A Test disc 5 + 5A .4822 397 30096 SBC442 Audio Burn- in test disc 1kHz .4822 397 30155 SBC429 Audio

10、Signals disc .4822 397 30184 Dolby Pro- logic Test Disc .4822 395 10216 SERVICE AIDS HANDLING CHIP COMPONENTS 1- 6 NLWAARSCHUWING Alle ICs en vele andere halfgeleiders zijn gevoelig voor electrostatische ontladingen (ESD). Onzorgvuldig behandelen tijdens reparatie kan de levensduur drastisch doen ve

11、rminderen. Zorg ervoor dat u tijdens reparatie via een polsband met weerstand verbonden bent met hetzelfde potentiaal als de massa van het apparaat. Houd componenten en hulpmiddelen ook op ditzelfde potentiaal. IAVVERTIMENTO Tutti IC e parecchi semi- conduttori sono sensibili alle scariche statiche

12、(ESD). La loro longevit potrebbe essere fortemente ridatta in caso di non osservazione della pi grande cauzione alla loro manipolazione. Durante le riparazioni occorre quindi essere collegato allo stesso potenziale che quello della massa dellapparecchio tramite un braccialetto a resistenza. Assicura

13、rsi che i componenti e anche gli utensili con quali si lavora siano anche a questo potenziale. GB Safety regulations require that the set be restored to its original condition and that parts which are identical with those specified, be used. Safety components are marked by the symbol !? . NL Veiligh

14、eidsbepalingen vereisen, dat het apparaat bij reparatie in zijn oorspronkelijke toestand wordt teruggebracht en dat onderdelen, identiek aan de gespecificeerde, worden toegepast. De Veiligheidsonderdelen zijn aangeduid met het symbol !? . F Les normes de scurit exigent que lappareil soit remis ltat

15、dorigine et que soient utiliss les pices de rechange identiques celles spcifies. Less composants de scurit sont marqus !? . D Bei jeder Reparatur sind die geltenden Sicherheitsvorschriften zu beachten. Der Original zustand des Gerts darf nicht verndert werden; fr Reparaturen sind Original- Ersatztei

16、le zu verwenden. Sicherheitsbauteile sind durch das Symbol !? markiert. I Le norme di sicurezza esigono che lapparecchio venga rimesso nelle condizioni originali e che siano utilizzati i pezzi di ricambio identici a quelli specificati. Componenty di sicurezza sono marcati con !? . GB After servicing

17、 and before returning set to customer perform a leakage current measurement test from all exposed metal parts to earth ground to assure no shock hazard exist, The leakage current must not exceed 0.5mA. CLASS 1 LASER PRODUCT 3122 110 03420 GBWarning ! Invisible laser radiation when open. Avoid direct

18、 exposure to beam. SVarning ! Osynlig laserstrlning nr apparaten r ppnad och sprren r urkopplad. Betrakta ej strlen. SFVaroitus ! Avatussa laitteessa ja suojalukituksen ohitettaessa olet alttiina nkymttmlle laseristeilylle. l katso steeseen! GBWARNING All ICs and many other semi- conductors are susc

19、eptible to electrostatic discharges (ESD). Careless handling during repair can reduce life drastically. When repairing, make sure that you are connected with the same potential as the mass of the set via a wrist wrap with resistance. Keep components and tools also at this potential. F ATTENTION Tous

20、 les IC et beaucoup dautres semi- conducteurs sont sensibles aux dcharges statiques (ESD). Leur longvit pourrait tre considrablement courte par le fait quaucune prcaution nest prise leur manipulation. Lors de rparations, sassurer de bien tre reli au mme potentiel que la masse de lappareil et enfiler

21、 le bracelet serti dune rsistance de scurit. Veiller ce que les composants ainsi que les outils que lon utilise soient galement ce potentiel. ESD DWARNUNG Alle ICs und viele andere Halbleiter sind empfindlich gegenber elektrostatischen Entladungen (ESD). Unsorgfltige Behandlung im Reparaturfall kan

22、die Lebensdauer drastisch reduzieren. Veranlassen Sie, dass Sie im Reparaturfall ber ein Pulsarmband mit Widerstand verbunden sind mit dem gleichen Potential wie die Masse des Gertes. Bauteile und Hilfsmittel auch auf dieses gleiche Potential halten. DKAdvarse ! Usynlig laserstrling ved bning nr sik

23、kerhedsafbrydere er ude af funktion. Undg udsaettelse for strling. F Pour votre scurit, ces documents doivent tre utiliss par des spcialistes agrs, seuls habilits rparer votre appareil en panne. GB ESD PROTECTION EQUIPMENT Complete Kit ESD3 (small tablemat, wristband, connection box, estention cable

24、 and earth cable . 4822 310 10671 Wristband tester .4822 344 13999 2- 12- 1 REPAIR INSTRUCTION 2- 22- 2 REPAIR INSTRUCTION 3- 1 DISASSEMBLY INSTRUCTIONS 1) Loosen 9 screws and remove the Top Cover by lifting the rear portion upwards before sliding it out towards the rear. - 5 screws on the back - 2

25、screws each on the left & right side 2) Loosen 7 screws & lift up the top edge of Front Panel assembly to free some catches before sliding it out towards the front. - 4 screws on the bottom - 1 screw A on the inside as indicated in Figure 1. - 1 screw each on the left & right side 3- 1 Figure 2 Dism

26、antling of the Main Board 1) Loosen 4 screws B on the top of main board as shown in figure2. 2) Loosen 8 screws C at the back panel as shown in figure 3. Figure 3 Figure 5 B D C E Dismantling of the Power & Tuner Board 1) Loosen 5 screws D on the top of power board as shown in figure 4. 2) Loosen 4

27、screws E on the top of tuner board as shown in figure 5. A Figure 1 Figure 4 3- 2 SERVICE POSITIONS Service position AService position B 3- 2 4- 1 BLOCK DIAGRAM 4- 1 4- 2 WIRING DIAGRAM 4- 2 CONTROL BOARD TABLE OF CONTENTS IC Interbnal Block Diagram .5- 1 Circuit Diagram .5- 2 PCB Layout Top & Botto

28、m View .5- 3 Electrical Parts List .5- 4 5- 15- 1 HT16511 INTERNAL BLOCK DIAGRAM HT48R05A INTERNAL BLOCK DIAGRAM Voltages: ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?PA0- PA7? ? TMR/PC1? WDTS? ?WDT? ? ? PORT C? ? ? ? PC0- PC1? ? ? ? ? ? ?PB0- PB2? ? ? ? ? ? ? PC1? ? ?INTC? ? ? ?M? U? X? ? ? ?MP? OSC2? OSC2? RES

29、? VDD? VSS? ACC? Timing? Generator? Program? ROM? Instruction ? Registor? Instruction ? Decoder? ?Program? Counter? STACK0? STACK1? INT/PC0? Interrupt ? Circuit ? DATA? Memory? MUX? ALU? Shifter? Status? TMR? TMRC? M? U? X? Prescaiser? WDT Prescaiser? PCC? PC? PB? PAC? PA? PBC? BZ/BZ? PORT B? PORT A

30、? M? U? X? RC OSC? fsus/4? fsys ? ? ? ? ? ? ? ? DI DO CLK CS OSC K0- K3 SW0- SW3 Latch 4- Bit Serial I/F Command Decoder Display RAM 20- Bit x 16 Words 20- Bit Output Latch 2012 Segment ? OSC Timing Generator Key Scan Key Data RAM (4 x 12) 5- Bit Latch 16 Bit Shift Register Diming Cirduit Grid Drive

31、r 12 8 8 8 8 8 8 16 Multiplexed Driver Driver S1/K1? S12/K12 S13/G16? S20/G6 ? G1G8? ? LED0LED4VDD VSS VEE 1234567891011121314151617181920 00003.83.803.83.700000 PIN NO Voltage19.7- 22.2 - 22.0 - 11.2 - 19.9 - 17.8 PIN NO2122232425262728293031323334353637383940 Voltage - 21.8 - 15.6 - 13.4 - 20- 13.

32、4 - 20- 22.4- 18- 20.3 - 13.2 - 15.8 - 11.4- 4.6 - 22.6 - 20.4 - 20.4 - 20.4 - 20.4 - 20.4 - 20.4 PIN NO414243444546474849505152 Voltage - 20.4 - 20.4 - 20.5 - 20.44.64.64.64.604.600.9 IC251 (HT16511) PIN NO1234567891011121314151617181920 Voltage?5.1 5.1 5.1 0 5.1 0 5.1 0 0 4.9 4.9 5.2 0 0 0 0 0 0 I

33、C252 (HT48R05A) PIN NObce Voltage4.44.14.0 Q201 (2SA812) PIN NObce Voltage4.904.8 Q202 (2SA1623) ? 5- 25- 2 CIRCUIT DIAGRAM -CONTROL BOARD C201?A1? C202?A1? C203?B1? C203A? B1? C204?D4? C205?C4? C207?B2? C208?B2? C209?B2? C210?D2? C211?E2? C217?C2? C218?C1? C219?C2? C220?B1? C991?A6? C992?A6? C993?A

34、6? C994?A3? C995?C5? C996?C5? D201?C3? D202?C3? DP201? C1? IC251?C2? IC252?B5? LD201?C5? Q201?D4? Q202?C4? R201?A2? R202?A2? R203?A2? R204?A2? R205?A2? R206?B2? R210?B2? R211?B3? R212?B3? R213?B3? R214?B4? R215?C4? R216?C4? R217?C4? R218?D4? R219?D4? R220?D4? R221?D3? R222?A5? R223?A5? R224?A5? R225

35、?B1? R226?B1? R228?B1? R229?A5? R235?A2? R980?A5? R981?A6? R982?A5? R983?A5? R984?B5? R985?B5? R986?B5? R987?B5? R988?B5? R989?C5? R990?C5? R991?C5 R992?D5? R996?C6? RB202? D6? RB2001?D6? RB2002?E5? SN201? D4? TA201?C4? TA202?C4? TA203?C4? TA204?C4? TA206?C4? TA207?C4? TA209?C4? TA210?C3? XL981?A6?

36、ZD201? C5 A 1 2 3 4 5 6 1 2 3 4 5 6 BCDE ABCDE 5- 35- 3 PCB LAYOUT - TOP VIEW PCB LAYOUT - BOTTOM VIEW A 123456 123456 B A B A 123456 123456 B A B C201?B2? C203?B6? C203A? A6? C204?B6? C966?B2? D201?B4? D202?B4? DP201? A6? LD201?B1? P1?A1? P2?A6? R992?B2? RB202? B2? RB2001?B3? RB202? B6? RB2001?B3?

37、RB202? B6? SN201? A6? TA201?B1? TA202?B2? TA203?B4? TA204?B2? TA206?B1? TA207?B2? TA209?B6? TA210?B3? XL980?A4? ZD201? A2? C202?B4? C205?A1? C207?B4? C208?B4? C209?B4? C210?A1? C211?A3? C217?A2? C218?A2? C219?A2? C220?A2? C991?A3? C992?A3? C993?A3? C994?B3? C995?B5? IC251?B2? IC252?B3? P3?B3? Q201?B

38、1? Q202?A4? R201?A3? R202?A3? R203?A3? R204?B4? R205?B4? R206?B4? R210?B2? R211?A5? R212?A5? R213?A5? R214?A4? R215?A4? R216?A4? R217?B1? R218?B1? R219?B1? R220?A1? R221?A1? R222?B3? R223?B3? R224?B3? R225?B2? R226?B2? R228?B2? R229?B3? R235?B4? R980?B3? R981?A3? R982?A3? R983?A3? R984?B3? R985?B3?

39、R986?B3? R987?B3? R988?A3? R989?A3? R990?A3? R991?B5? R996?A3? 5-45-4 MISCELLANEOUS ELECTRICAL PARTS LIST - CONTROL BOARD DP2019965 000 17398VFD 35P HNA-10SS28 LD2019965 000 17400LED 3DIA RED ROUND SN2019965 000 23591IRT RECEIV IRM-2038F4 TA2019965 000 20267TACT SWITCH TA2029965 000 20267TACT SWITCH

40、 TA2039965 000 20267TACT SWITCH TA2049965 000 20267TACT SWITCH TA2069965 000 20267TACT SWITCH TA2079965 000 20267TACT SWITCH TA2099965 000 20267TACT SWITCH TA2109965 000 20267TACT SWITCH X9819965 000 23590CRYSTAL 4MHz HC-49US +/-15PPM DIODES D2014822 130 306211N4148 D2024822 130 306211N4148 ZD201482

41、2 130 34233BZX79-B5V1 TRANSISTORS & INTEGRATED CIRCUITS Q2029965 000 141752SA733Q,P Q2019965 000 20268XISTR NPN SMT TYPE (2SC1623) IC2519965 000 23593IC 52P HT16511 QFP HOLTEK IC2529965 000 23592IC 18P HT48R05A-1 SOP HOLTEK Note :Only the parts mentioned in this list are normal service spare parts.

42、POWER BOARD (For Information only) 6-1 It is not recommended for component repair on this board but to replace the board when it becomes defective. Therefore no service parts list is published in this chapter. The only service part available for replacement is: SW PWR SUP ASSY 230V (/01) . 9965 000

43、23905 SW PWR SUP ASSY 110-230V (/69) . 9965 000 23949 TABLE OF CONTENTS Circuit Diagram (/01 Version) . 6-2 Circuit Diagram (/69 Version) . 6-3 PCB Layout. 6-4 CIRCUIT DIAGRAM - POWER BOARD ( / 01 ) 6- 26- 2 CIRCUIT DIAGRAM - POWER BOARD ( / 69 ) 6- 36- 3 PCB LAYOUT - POWER BOARD 6- 46- 4 TUNER BOAR

44、D (/01) TABLE OF CONTENTS TUNER ADJUSTMENT TABLE .7A- 1 Circuit Diagram.7A- 2 PCB Layout Top View.7A- 3 PCB Layout Bottom View .7A- 4 Electrical Parts List & Voltage List .7A- 5 7A- 17A- 1 WaverangeInput frequencyInputTuned toAdjustOutputScope/Voltmeter VARICAP ALIGNMENT AM IF AM RF 3) 108MHz 87.5MH

45、zcheck 7.5V 1V 1.4V 0.2V ? T002 FM 87.5 - 108MHz (50kHz grid) 1602KHz 531KHzT005 1.1V0.2V ? ? ? ? ? ? FM ? 612kHz612kHz 1404kHz T006 1404kHzVC001 AM ? ? 1) If sensitivity of frequency counter is too low adjust to max. channel separation (input signal: stereo left 90% + 9%, adjust output on right channel to minimum) 2) RC network serves for damping the IF- filter while ? adjusting the other one. 3)For AM RF adjustments the original frame antenna has to be used! max. symmetric fo max. symmetric fo R220 10