Philips-MCM-5-Service-Manual(1) 电路图 维修手册.pdf

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1、CLASS 1 LASER PRODUCT Service Manual Service ServiceService ServiceService MCM5/22/25/37 TABLE OF CONTENTS Page Location of pc boards fr Reparaturen sind Original-Ersatzteile zu verwenden. Sicherheitsbauteile sind durch das Symbol ! markiert. I Le norme di sicurezza esigono che lapparecchio venga ri

2、messo nelle condizioni originali e che siano utilizzati i pezzi di ricambio identici a quelli specificati. Componenty di sicurezza sono marcati con ! GB After servicing and before returning set to customer perform a leakage current measurement test from all exposed metal parts to earth ground to ass

3、ure no shock hazard exist. The leakage current must not exceed 0.5mA. DISMANTLING INSTRUCTIONS Dismantling of the Cover Cassette and Universal Loader 1) Remove the Cover Cassette (pos 150) in the direction as shown in Figure 1. 2) Loosen 4 screws to remove the Cover Top (pos 240) by sliding it out t

4、owards the rear before lifting up. - 2 screws on the rear - 1 screw each on the left & right side 3) Loosen 2 screws each to remove the Panel Left (pos 180) and Panel Right (pos 181). The Panels are removed by sliding it towards the rear and outwards. - 1 screw on the rear - 1 screw on the side - se

5、e Service position A 4) Use a screw driver to give a push in the direction as shown in Figure 2 and Figure 2A to unlock the Loader Tray before sliding it out. 5) Slide out the Loader Tray and remove the Cover CD (pos 110 + pos 111) in the direction as shown in Figure 3. 6) Loosen 4 screws A (see Fig

6、ure 4) to remove the Bracket Module Mounting (pos 156) and Universal Loader (pos 1103). - 2 screws each on the left & right side Detaching the Universal Loader from the Bracket Module Mounting 2-12-1 Figure 1 Figure 2 Figure 3Figure 4 Figure 6 Figure 7AFigure 7 1) Remove 2 screws C (see Figure 6) fr

7、om the bottom of the Cabinet Front (pos 101). Detaching the Front Panel assembly from the Bottom/Rear assembly 2) Release the fixation of the Combi Board (pos1102-1003) to Bracket Combi (pos 155) by releasing the 2 catches C1 (see Figure 7) and pulling the Combi Board outwards as shown in Figure 7A.

8、 3) Uncatch 2 catches C2 (see Figure 7) on the left & right sides of the Cabinet Front (pos 101) and slides the Front Panel assembly out towards the front. - see Service position C Figure 5 1) Slide out the Loader Tray fully and remove 4 screws B (see Figure 5) to detach the Universal Loader (pos 11

9、03) from the Bracket Module Mounting (pos 156). - see Service position B Figure 2A 2-22-2 Dismantling of the Front Panel assembly 1) The Knob Volume (pos 141) can be remove by pulling it out in the direction as shown in Figure 8. 2) The Knob Bass/Knob Treble (pos 140) can be remove by pulling it out

10、 in the direction as shown in Figure 9. 3) Loosen 4 screws D (see Figure 12) to remove the Shield Tape Deck and Module Tape Deck (pos 1107). 4) Loosen 2 screws E (see Figure 11) to remove the Bracket Top Support (pos 113). DISMANTLING INSTRUCTIONS 5) Loosen 1 screw F and 4 catches C3 (see Figure 11)

11、 to remove the Eeprom Board (pos 1105D). 6) Loosen 4 screws G (see Figure 11) to remove the Bracket Combi (pos 155). 7) Uncatch 4 catches C4 (see Figure 13) to remove the Display Board (pos 1105A) 8) Loosen 4 screws H (see Figure 13) to remove the Top Key Board (pos 1105C). 9) Loosen 5 screws J (see

12、 Figure 14) and 2 nuts W (see Figure 10) to remove the Control Board (pos 1105B). Dismantling of the Front Panel assembly Figure 11 Figure 9 Figure 12Figure 15 Figure 13 1) Loosen 3 screws K and 2 catches C5 (see Figure 15) to remove the Tuner Board assembly. 2) Loosen 3 screws L (see Figure 15) to

13、free the Combi Board (pos 1102-1003). 3) Loosen 1 screw M (see Figure 15) to free the Mains Socket Board (pos 1102-1001B). 4) Loosen 1 scew N and 2 catches C6 (see Figure 15) to free the Panel Rear (pos 230) by sliding it out towards the rear. Note : Tuner Board assembly and Mains Socket Board can a

14、lso be remove together with the Panel Rear. Dismantling of the Rear Panel assembly Figure 14 Figure 8 Figure 10 2-32-3 Service position A Service position B Service position C DISMANTLING INSTRUCTIONS Repair Hints & Service Positions 1) During repair it is possible to disconnect the Tuner Board and/

15、or CD Module completely unless the fault is sus- pected to be in that area. This will not affect the performance of the rest of the set. Note: The flex cables are very fragile, care should be taken not to damage them during repair. After repair, be very sure that the flex cables are inserted properl

16、y into the flex sockets before encasing, otherwise faults may occurs. 3-13-1 Various other Tests Activated withACTIONTEST EEPROM FORMAT TEST Load default data. Display shows NEW for 1 second. Caution! All presets from the customer will be lost! Disconnect mains cord LEAVE SERVICE TEST PROGRAM S S 9

17、to Exit EEPROM TESTTest patterns will be sent to the EEPROM. PASS is displayed if the uProcessor read back the test patterns correctly, otherwise FAIL will be displayed. Volume, Treble or Bass Knob ROTARY ENCODER TEST Display shows value for 2 seconds. Values increases or decreases until Volume Maxi

18、mum (0dB) or Volume Minimum (VOL MUTE) is reached. BIIDEMO TOGGLE Pressing this button will toggle between DEMO ON and DEMO OFF. The DEMO status will scroll once across the Display. Figure 1 Figure 2 LEDs ECO CD TUNER TAPE AUX Volume Rotary Off On On On On On Off On Off On Off On Pattern 1Pattern 2

19、Table 2 Y N Y N DIM or RDS Button pressed? DIM or RDS Button pressed? DISPLAY TEST Display shows Figure 1 and switch all LEDs on except ECO LED (see Table 2 Pattern 1) Display shows Figure 2 and switch alternate LEDs on (see Table 2 Pattern 2) Y N 9 Button pressed? Y N Y N N AUX Button pressed? AUX

20、Button pressed? AUX Button pressed? ADC TEST Display shows ADC1 Value for ADC1 (Input Line - TpADC1) Display shows ADC2 Value for ADC2 (Input Line - TpADC2) Y N AUX Button pressed? Display shows ADC3 Value for ADC3 (Input Line - Option) Y Y N 9 Button pressed? ADC Test is used for checking the ADC i

21、nputs to the microprocessor. The display shows an ADC value between 0 and 255 for an input signal between 0 and 5V. Display shows ADC4 Value for ADC4 (Input Line - AmNtc) CD (on RC) Button pressed? Y N STEP 1 2 3 4 5 6 DISPLAY MESSAGE - - BUS OK - - FOC OK - - BUS ER - - FOC ER ACTION Indicates the

22、module used. Version of the MPEG software (nn = Version Number). Communication test between the Main uP and CD Module. CD SLEDGE MOTOR is moved in. CD SLEDGE MOTOR is moved out. FOCUS SERVO Test. Press 9 to exit. OKAYERROR MP3CD03 TI-Vnn TI BUS SLD I SLD O TI FOC Choose level by pressing on the RC Q

23、 R Note : Disc should be available on the tray before entering the Service Test Mode. MP3-CD MODULE TEST Y Y Y N N N Display shows 12M Output at (Display Board) pin 19 of uP = 2,929.6875Hz Display shows 32K Output at (Display Board) pin 19 of uP = 2048Hz QUARTZ TEST TAPE Button pressed? TAPE Button

24、pressed? 9 Button pressed? TUNER Button pressed? Disconnect Mains cord ? Y Y N N Y Display Tuner Version ccc Service frequencies are copied to the RAM (see Table 1) Tuner works normally except: PROGRAM button Service Mode left TUNER TEST TUNER Button pressed? N PRESET 1 2 3 4 5 6 7 8 9 10 11 Europe

25、EUR 87.5MHz 108MHz 531kHz 1602kHz 558kHz 1494kHz 87.5MHz 87.5MHz 87.5MHz 87.5MHz 98MHz East Europe EAS 87.5MHz 108MHz 531kHz 1602kHz 558kHz 1494kHz 87.5MHz 87.5MHz 87.5MHz 87.5MHz 98MHz USA USA 87.5MHz 108MHz 530kHz 1700kHz 560kHz 1500kHz 98MHz 87.5MHz 87.5MHz 87.5MHz 87.5MHz Oversea OSE 87.5MHz 108

26、MHz 531/530kHz* 1602/1700kHz* 558/560kHz* 1494/1500kHz* 87.5/98MHz* 87.5MHz 87.5MHz 87.5MHz 98/87.5MHz* Table 1 East Eur. Extended-band EAS 65.81MHz 108MHz 74MHz 87.5MHz 531kHz 1602kHz 558kHz 1494kHz 98MHz 70.01MHz 65.81MHz Note: * Depending on the selected grid frequency (9 or 10kHz). By holding th

27、e ECO and TUNER buttons depressed while switching on the Mains supply, one of the undermentioned features will be activated: - the tuning grid frequency is toggled between 9kHz and 10kHz for the Oversea (/21) version. - the extended FM1 (65.81MHz - 74MHz) is toggled on and off for East Eur. (/34) ve

28、rsion. To start service test program hold& ECO depressed while plugging in the mains cord Display shows the ROM version S-Vyy (Main menu) S refers to Service Mode V refers to Version yy refers to Software version number of the uProcessor (counting up from 01 to 99) SERVICE TEST PROGRAM Micro 2004_MC

29、M7 & MCM8_Service Test Program_dd wk0410 S MUTE 125mV UL-ICD03 A2 B1 (ONLY FOR -/37) HP_MUTE FTD IIC_DATA1 VOL. 1 -33V REG MEASUREMENTS ARE IN AUX MODE : LEVELS AT MAX VOL S/N AT 500mW NOTE : BASS & TREBLE CONTROL +D +C SHIFT REGISTER SOURCE / VOLUME LEDS +D POWER SUPPLY TREBLE HP DET CONTROL ECO6 A

30、MPLIFIER 2.50V +9.1V CDC CONTROL F1x +5V6 NTC REGISTER M62320FP IIC CLK1 IIC_DATA1 78dBA 3.2dB NTC +12V_A EEPROM M F1 LOW_POWER_CONTROL +5V_CD CONTROL A 85dBA -CMOS +12V_D 250nWb/mATTN. -25dB 28mV 500mV CONTROL FOR CLASS G SWITCH B B Rin = 3k HEADROOM (1% THD) WRT TO LEVEL AT MAX VOL 500mV BASS AMP_

31、ONA1 A YY dBA CONTROL INCREDIBLE 1.90V 67dBA FM (67.5 kHz) LEFT/RIGHT LEFT/RIGHT ETF8 D +12V_A A1 +5V6 +12V_A A 2 X 6 OHMS 3.0dB 285mV ZZ dB MP3 D IIC_CLK1 + +12V_A TDA7468 +CD +C L CONTROL +D IIC SHIFT - + TUNER A2 KEY SCAN AN7591 CONTROL VOLUME N C1 HEADPHONE HP_DET 39R REGULATOR / STABILISER B1 +

32、50V VOL. 2 +9.1V REGULATOR 7805 IIC SURROUND AMP_ON IS FILTER +D A M HEADPHONE CHOKE +12V_A F2x ATTN. +9V AUX / CDR IR EYE ADC +5V6 LED NJM4556AM A1 ETF8 D FOR -/21 ONLY 2 X 40W AMP_MUTE 3dB & ECO POWER L/R SPEAKER TUNER HP_DET 39R A AMP_MUTE COMBI CONTROL MUTE_HP ETF8 DECODER TMP88CU74YF A 10M MAIN

33、S 85dBA 650mV -6dB Track FUSE COMBI AMPLIFIER +C SIMPLE A POWER +G 16dB F2x (NOT USED FOR -/37) A2 XX mV UL-CD F2 RDS -33V - ATTEN. AM (80% MOD) FUSE FUSE +12V_D 125mV +5V6_ECO SOFTWARE CONTROL -33V -8.5dB POWER MAIN SIGNAL PATH SMPS PWDN IIC_CLK1 +5V6_ECO IIC_DATA1 +C +5V6 D CD_ON 500mV / 1000mV +5

34、V6 VOLTAGE LPS F1 F2 LPC CONTROL 500mV HP_OUT F1x SELECTOR HP_OUT FRONT PWDN TRAFO SOURCE SELECTOR INTERFACE +12V_M uP +D FUSE Block Diagram_3139 119 37751_dd wk0409 4-14-1 SET BLOCK DIAGRAM 5-15-1 SET WIRING DIAGRAM 3139 110 38421 FCS 1810 LOUDSPEAKER TO BOTTOM PLATES RIGHT LUG 8019 2P/180 mm 3139

35、111 04301 8018 EHT 1703 FCT 1022 STRIP TO BOTTOM PLATES L 1 1P/180 mm 3139 110 35791 CHROME STRIPS FCS 1300 1P/220 mm 8300 HEADPHONE ESD WIRE TO BOTTOM PLATES PLATES LEFT LUG3139 110 33901 1 FCS 1805 1301 LINE OUT # 1006 DIGITAL OUT 8009 15P/120mm/AD 8001 7P/220mm/AD 3139 110 35901 3139 111 01781 15

36、P/280mm/BD/Fold 8010 3P/180mm 8008 FCS 1402 (RDS) 1 1 1 1 9P/180mm/AD 8006 19P/180mm/AD/Fold 8007 (1105) COMBI 1P/135 mm FROM TUNERS METAL STRIP TO AUXS METAL STRIP 8016 1P/160 mm 8015 ON REARCAB 3139 110 34301 1 8P/100mm/AD 1 TO BOTTOM PLATES RIGHT LUG (1105) (1106) 8003 19P/98mm/BD 8004 3139 111 0

37、3871 FCT 1209 3103 308 93622 8P/280mm/AD/Fold 7P/180mm/AD 8013 8005 3139 111 01791 FCS 1801 FCT 1600 FCS 1451 FCS 13021 FCT - FFC TOP ENTRY FCS - FFC SIDE ENTRY EHS - EH SIDE ENTRY ETF8 (1105) 1 FCS 1803 8P/268mm/AD FCT 1407 EHT 1314 EHT 1203 EEPROM 1 AUX-IN N BI - BOARD IN ENTRY FCT 1013 FHT 1020 F

38、CT 1304 DISPLAY HP 9P/120mm LEGEND 8001 EHT 1302 1204 # 1004 SUBWOOFER OUT 9P/220mm TRAFO LPS 8300 TRAFO (1102-1003) 1BI 8008 UL-CD EHT 1400 1 1 FRONT NOTE : # - PROVISION 2P/260mm (1101) 1 FCT 1406 FAN EHT 1402 REGULATOR/ (1104) 1 PIN TYPE 1 # 1001-B BOTTOM PLATE 1FCS 1401 # 8301 FRONT CONTROL ESD

39、WIRE TO (1105) FRONT MP3 FCT 1014 FCS 1706 1 FCT 1120 1 8002 1307 1 CONTROL 1 EHT 1404 EHT - EH TOP ENTRY 1 # 8301 1P/220 mm FCS 1405 1 (1107) FCT 1025 FCT 1026 (5001) 1 8200 (1102-1001) SUPPLY (MAINS) ECO6 (1103) 3139 110 34131 3139 110 35081 3139 111 03881 3140 110 20881 3139 110 34841 3139 110 36

40、001 1 TOP KEY (CDC KEY) 1 FCT 1018 7P/140mm/AD 8012 4P/340mm/BD 8011 3139 110 35091 3139 110 34481 FROM RIGHT & BOTTOM 1 LEFT LUG (1102-1002) STABILISER 1001-A 2 X 50W 1 1 FCS 1701 2P/280mm 8014 FROM TAPE CHASSIS 3103 308 94021 3139 110 35641 3139 110 35241 Wiring Diagram_3139 119 37721_dd wk0409 FR

41、OM LEFT CHROME FRONT BOARD TABLE OF CONTENTS FTD Display Pin Connection . 6-2 Display part - Component Layout. 6-3 Display part - Chip Layout . 6-4 Display part - Circuit Diagram Part 1 . 6-5 Display part - Circuit Diagram Part 2 . 6-6 Display part - Variant Table . 6-7 Top Key part - Layout & Circu

42、it diagram . 6-7 Control part - Component & Chip Layout . 6-8 Control part - Circuit Diagram Part 1. 6-9 Control part - Circuit Diagram Part 2. 6-10 Eeprom part - Layout & Circuit diagram. 6-11 Karaoke part - Component & Chip Layout . 6-12 Karaoke part - Circuit Diagram. 6-13 Electrical parts list.

43、6-14 6-16-1 TECHNICAL REMARKS 6-26-2 FTD DISPLAY PIN CONNECTION P1 P2 P3 P4 P5 P6 P7 P8 P9 P10 P11 P12 P13 P14 P15 P16 P17 1G B A C 2G - - a h j , p k b f m g c e r n d - 3G - - a h j , p k b f m g c e r n d - 4G - - a h j , p k b f m g c e r n d - 5G - - a h j , p k b f m g c e r n d - 6G - - a h j

44、 , p k b f m g c e r n d - 7G col - a h j , p k b f m g c e r n d - 8G - - a h j , p k b f m g c e r n d - 9G col dp a h j , p k b f m g c e r n d - 10G a h j , p k b f m g c e r n d - 11G - a h j , p k b f m g c e r n d - 12G - - 13G - S1S2 S3 S1S2 S3 A1 B1 B2 B3 B4 B5 B6 B7 A1 B1 B2 B3 B4 B5 B6 B7

45、 C1C1 C2C2 C3C3 C4C4 C5C5 C6C6 C7C7 (13G) (1G) (1G) B1 S1 (13G) (1G) (1G) B1 S1 A BC BC CB hfjkb r g d a m epnc AA A BC BC CB hfjkb r g d a m epnc AA B2 B3 B4 B5 B6 B7 A1 C1 C2 C3 C4B2 B3 B4 B5 B6 B7 A1 C1 C2 C3 C4 C5C5C6C6 C7 S2 S3 C7 S2 S3 (12G)(2G - 11G)(12G)(2G - 11G) 1G1G2G2G3G3G4G4G5G5G6G6G 13

46、G13G 7G7G8G8G colcolcolcol dpdp 9G9G10G10G11G11G12G12G 6-36-3 DISPLAY BOARD - COMPONENT LAYOUT This assembly drawing shows a summary of all possible versions. For components used in a specific version see schematic diagram and respective parts list. 3139 113 3529 pt4 dd wk0409 This assembly drawing

47、shows a summary of all possible versions. For components used in a specific version see schematic diagram and respective parts list. 3139 113 3529 pt4 dd wk0409 DISPLAY BOARD - CHIP LAYOUT 6-46-4 V16 VDD sink o.drain V25 V26 V27 V28 -RESET TEST XTOUT XTIN -STOP -INT0 -INT1 drain P6-P9 source open dr

48、ain source open drain 80k p.d. 80k pull down P04 P05 P06 P07 80k pull down 80k pull down80k pull down V4 V5 V6 V7 V8 V9 V10 V11 V12 V13 V14 V15 CPU VFT driver circuit (automatic display) 8-Bit A/D Converter 8-Bit Input/Output (tri-state) P0 V17 V18 V19 V20 V21 V22 V29 V30 V31 V32 V33 V34 V35 V36 VKK -SCK1 SI1 SO1 P03 PD VSS VAREF VASS XOUT XIN P5 TC2 -DV0 -SCKO AIN0 AIN1 AIN2 AIN3 AIN4 P1 (tri state)