Philips-MCM-1120-Service-Manual(1) 电路图 维修手册.pdf

《Philips-MCM-1120-Service-Manual(1) 电路图 维修手册.pdf》由会员分享，可在线阅读，更多相关《Philips-MCM-1120-Service-Manual(1) 电路图 维修手册.pdf（31页珍藏版）》请在收音机爱好者资料库上搜索。

1、MCM1120/all TABLE OF CONTENTS Page Technical specification .1-14 Safety instruction. ESD protection. . . . Set Block diagram . .3-1 Set Wiring diagram. .4-1 Disassembly diagram. 5-1 Main board Circuit diagram.6-1 Layout diagram.6-2.6-3 Display DSC setting in Jazz mode with DBB OFF (2*) Input Sensity

2、 rated, Tuner is +/-6dB ( At Cold Condition with 10% THD )Main Operation ( for DCB188/05/12 ) 2#REF! #REF! : 5W, 2 Channels VerIssued DateClass No 5-Sep-111 A4 DATE : NAME : DS.XIE CHECK 1010SH 190 - 4 GENERAL PART 1 - GENERAL SPECICFICATION MCM1120 All Version 3 Frequency Response: 60Hz - 16KHz( At

3、 500mV Output in FLAT Mode ) At 10% THD DIST O/P POWER 2X5W MicrophoneN/A A.Nt uO r e t sooBAUX 500 mV 2 Db(lim:650mv) A/NEPAT A.Nt uO l a i xaoC l a t i g iDA/N BSU A.N) t hg iR / t f eL ( t uO en iLno i t a l udoM %0 8 MA, zHK5 . 76 MF r enuT A/N) t upn i Bd0 DC t a ( enohpdaeH A.Nt uO r e foowbuS

4、 ) 51 krT , 1 cs iD o i duA ( kca r t Bd 6- DC dB INTERCONNECTS Input Sensitity ( 3dB ) rated ouput power at 1 kHzLine Output Voltage ( *1 ) )RETLIF( ) de t hg i ew ( es i oN / l ang iSA/N: XOOW 50 mv ) zHk 1 t a ( no i t a r apeS l ennahCA/N: CAV 30dB 5 . 1)RETLIF( ) mu i n iM emu l oV ( es i oN l

5、aud i seRA/N: SIS vm3)RETLIF( ) emu l oV 02- ( muHFFO/NOBBD 3Bd64- t a r ecne r e f f iD l ennahCPOP, sa lC, kcoR, zzaJ: CSD INDICATORS Standby Mode Indicator : LCD display time ECO Mode Indiicator : N/A ELECTRICAL DATA dB OUTPUT stage Protection : NO Temperature : No. Shorcircuit : Yes LoudSpeaker

6、D.C. Protection : NO. TECHNIAL DESCRIPTION 2 x 5W , matching LOUDSPEAKER of 2 x 4ohm. One INPUT SOURCE, ( Digital Sound Control ). GENERAL PART 1 - 8 A4 #REF! CHECK 3 #REF! 5-Sep-11 MICRO System with Digital Tuner, Clock Timer ,ipod, 2 x 5W Universal Class D Power Amplifier Aux In, Head Phone and Re

7、mote Control Issued Date 1 DATE : NAME : DS.XIE1010SH 190 - 5 Class No MCM1120 All Version Ver 2 Remarks GENERAL PART 1 - GENERAL SPECICFICATION 0 + 6 dB FrequencyDBB OFFDBB ON 125 Hz Select AUX as input source with the following set conditions : Inject sine wave 600mV at 1kHz to L/R channels of AUX

8、 - IN socket. Set DSC to CLAS(Flat) mode and switch off DBB, Adjust volume level will be as 0dB reference.(Volume 15). Tabel 2 ( Tolerance 3dB ) 4 2 ) DBB ( Dynamic Bass Boot ) 10 kHz-0.25-0.2 Tabel 1a ( Tolerance 3dB ) without Test 108106 6 . 04 . 25 . 0zHk 1 Tabel 1b ( Tolerance 3dB ) without Test

9、 Frequency DSC Modes with DBB ON JAZZROCKCLASPOP 2 125 Hz 10 kHz-2.22.5-0.32 370.1 023 . 0-zHk 1 Frequency DSC Modes with DBB Off JAZZROCKCLASPOP 5 1.4 125 Hz AUDIO SIGNAL PROCESSING 1 ) DSC ( Digital Sound Control ) Select AUX as input source with the following set conditions: Inject sine wave 600m

10、V at 1 KHz to L/R channels of AUX-IN socket. Set DSC to CLAS(Flat) mode and switch off DBB,OSM fr Reparaturen sind Original-Ersatzteile zu verwenden. I Le norme di sicurezza esigono che lapparecchio venga rimesso nelle condizioni originali e che siano utilizzati i pezzi di ricambio identici a quelli

11、 specificati. After servicing 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 radi

12、ation when open. Avoid direct 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! DKAdvarse ! Usynlig laserstrl

13、ing ved bning nr sikkerhedsafbrydere er ude af funktion. Undg udsaettelse for strling. Caution: These servicing instructions are for use by qualified service personnel only. To reduce the risk of electric shock do not perform any servicing other than that contained in the operating instructions unle

14、ss you are qualified to do so. 2-1 When?the?power?supply?is?being?turned?on,?you?may?not?remove?this?laser?cautions?label.?If?it?removes,?radiation?of?laser may?be?received. 2.1 ESD PROTECTION PREPARATION?OF?SERVICING Pickup?Head?consists?of?a?laser?diode?that?is?very?susceptible?to?external?static?

15、electrocity. Although?it?operates?properly?after?replacement,?if?it?was?subject?to?electrostatic?discharge?during?replacement, its?life?might?be?shortened.?When?replacing,?use?a?conductive?mat,?soldering?iron?with?ground?wire,etc.?to protect?the?laser?diode?form?damage?by?static?electricity. And?als

16、o,?the?LSI?and?IC?are?same?as?above. Soldering?iron with?ground?wire or?ceramic?type Ground?conductive wrist?strap?for?body. Conductive?mat The?ground?resistance between?the?ground?line and?the?ground?is?less?than?10 1M 2-2 SAFTY NOTICE Plug the AC line cord directly into a 120V AC outlet (do not us

17、e an isolation transformer for this check). Use an AC voltmeter, having 5000 per volt or more sensitivity. Connect a 1500 10W resistor,paralleled by a 0.15uF 150V AC capacitor between a knomn good earth ground (water pipe, conduit, etc.) and all exposed metal parts of cabinet (antennas, handle brack

18、et, metal cabinet screwheads, metal overlays, control shafts, etc.). SAFTY PRECAUTIONS LEAKAGE CURRENT CHECK Measure the AC voltage across the 1500 resistor. The test must be conducted with the AC switch on and then repeated with the AC switch off. The AC voltage indicated by the meter may not excee

19、d 0.3V.A reading exceeding 0.3V indicates that a dangerous potential exists, the fault must be located and corrected. Repeat the above test with the DVD VIDEO PLAYER power plug reversed. NEVER RETURN A DVD VIDEO PLAYER TO THE CUSTOMER WITHOUT TAKING NECESSARY CORRECTIVE ACTION. READING SHOULD NOT EX

20、CEED 0.3V DVD VIDEO PLAYER AC OUTLET AC VOLTMETER Test all exposed metal. Voltmeter Hook-up for Leakage Current Check 0.15uF 150V AC 1500 10W (5000 per volt or more sensitivity) Good earth ground such as a water pipe, conduit, etc. The lightning flash with arrowhead symbol, within an equilateral tri

21、angle, is intended to alert the user to the presence of uninsulated dangerous voltage within the products enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. The exclamation point within an equilateral triangle is intended to alert the user to the presenc

22、e of important operating and maintenance (servicing) instructions in the literature accompanying the appliance. 2-3 3-13-1 BLOCK DIAGRAM WIRING DIAGRAM 4-14-1 and CD part. A B C FRONT CAB. REAR CAB. CD PART 1)Remove 10 screws A&B&C as indicated to loosen the Rear Cabinet and CD part. D E F 1) Remove

23、 2 screws D & E as indicated to loosen the Main Board. 2) Remove 8 screws F as indicated to loosen the Display Board and Usb Board. 3) Remove 3 screws G as indicated to loosen the Tape Board. H G 4) Remove 4 screws H as indicated to loosen the Smps module. CIRCUIT DIAGRAM - AMP/POWER BOARD 6-2 6-2 L

24、AYOUT DIAGRAM - MAIN BOARD TOP SIDE LAYOUT DIAGRAM - MAIN BOARD BOTTOM SIDE 6-3 6-3 CIRCUIT DIAGRAM - DISPLAY/KEY BOARD 7-17-1 CIRCUIT DIAGRAM - CD/USB BOARD 7-27-2 LAYOUT DIAGRAM - DISPLAY BOARD TOP SIDE 7-37-3 LAYOUT DIAGRAM - DISPLAY BOARD BOTTOM SIDE 7-47-4 LAYOUT DIAGRAM - USB BOARD 7-57-5 CIRCUIT DIAGRAM - TAPE BOARD 8-18-1 LAYOUT DIAGRAM - TAPE BOARD 8-28-2 9-19-1 EXPLODED VIEW