Philips MCM277 Service Manual Download Page 45

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MECHANICAL & ACCESSORIES PARTS LIST

996510010723

LENS-CD DOOR /05/12

996510010722

DOOR-CD

996510010724

HOLDER CD DOOR CARRIER (L)

994000004302

COVER POWER BUTTON

996510010728

KNOB-VOLUME

996510010726

LENS DISPLAY

996510010725

HOLDER CD DOOR CARRIER (R)

996510010729

LENS BAR

996510010721

CABINET FRONT

996510010727

BUTTON POWER/SOURCE

994000004325 BELT MOTOR

996510010720

CABINET REAR FOR /12/05

19-21

996520032987

STAND PORTION OF MCM277

9940 000 04323 CD DAMPER (BLACK) 20DEG

996510010437

CD MECHANISM M93BGP-BF

9940 000 01664 DAMPER GEAR ASSEMBLY

9940 000 03384 SPRING TORSION LEFT

994000004304

BRACKET OPEN/CLOSE BUTTON

994000004324

SPRING CONTROL PANEL

996510010730

BUTTON OPEN/CLOSE

994000004315

COVER PLAY BUTTON

994000004309

BUTTON FW/FF

996510010732

PANEL FUNCTION /12/05

996510010733

COVER FUNCTION PANEL 05/12/98

996510010731

BUTTON FUNCTION

994000004308

BUTTON PLAY

994000004333

IR LENS

994000004316

PULLEY SERVO MOTOR

994000004314

BRACKET FUNCTION PANEL

996510006485 CD/MCU BOARD ASS'Y (M93) /05/12

SPK

996510010734

SPEAKER BOX /05/12

FMA

994000004329

FM ANT WIRE 75R 1.0M

REM

996510028568

REMOTE CONTROL /05/12

AML

994000004331

AM LOOP ANT 164X75MM

ACW ! 994000002223

POWER AC WIRE BSI /05

ACW ! 994000001675

POWER AC WIRE VDE 230V /12

FFC1

994000004281

FFC 21P P1.25MM L110MM C TYPE

FF1

996510006481

FFC 7P P1.25MM L155MM D TYPE

T901 ! 994000004244

POWER TRASFO AC230V H50 /05/12

T902 ! 994000004245

POWER TRASFO EI-28 AC230V /05/12

RF401 994000004237

Note: Only these parts mentioned in the list are

normal service parts.

9-2

FM FRONT END MODULE /05/12

996510012871 LENS-CD DOOR /98

996510012870 CABINET REAR /98

ACW ! 994000002082 POWER AC CORD VDE 2C 1.5M /98

T901 ! 994000004431 POWER TRASFO AC115/230V /98

REM

996510028568 REMOTE CONTROL /98

996510012873

PANEL FUNCTION /98

Summary of Contents for MCM277

Page 1: ...thout the prior permission of Philips Published by SL1020 Service Audio Printed in The Netherlands Subject to modification Micro System 3141 785 32376 Version 1 6 ServiceManual From week 0913 onwards ALI solution decode IC has been adopted to replace ROHM solution decode IC accordingly new Main Board Display MCU Board AC Power Board etc were used to match with new solution Please refer chapter 1 t...

Page 2: ...oltage Selector ECO Power Standby LCD Display Off x x USB Direct Type Versions MCM277 Features in used x 05 x x x x VERSION VARIATIONS Type Versions Board in used MCM277 Service policy MAIN BOARD CD MCU BOARD HEADPHONE JACK BOARD AC POWER BOARD KEY BOARD TIPS C Component Lever Repair M Module Lever Repair Used C M 05 12 55 8 9 1 6 8 5 Feature diffrence C M DISPLAY BOARD C C C C C C C C C C C C C C...

Page 3: ... 18dB IF rejection 45dB Image rejection 28dB Distortion at RF 50mV M 80 5 AMPLIFIER Output power L R 2 x 5 0W 4Ω 1kHz 10 THD Frequency response within 3dB 50Hz 16kHz Digital Sound Control DSC Jazz Rock Pop Classic Input sensitivity Aux in at 1kHz 500mV at 600 Ω Output sensitivity Headphone output at 32 Ω 10mW 2dB Max vol COMPACT DISC Frequency response within 3dB 125Hz 16kHz Output level in Vrms 5...

Page 4: ...7122 707 89001 Tuner AM MW LW To avoid atmospheric interference all AM measurements have to be carried out in a Faraday s 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 Bandpass 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...

Page 5: ...ng 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 ESD CLASS 1 LASER PRODUCT 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 Lead free ...

Page 6: ...T OK check playability N Y playability ok check playability check playability return set Customer complaint CD related problem fast lens cleaning 1 2 3 For flap loaders access to CD drive possible cleaning method 4 is recommended INSTRUCTIONS ON CD PLAYABILITY 1 6 Exchange CDM 1 4 For description see following pages ...

Page 7: ...viously caused by a scratched dirty or copy protected CD In case problems remain the customer is requested to contact the workshop directly The lens cleaning method 3 should be mentioned in the addendum sheet The final wording in national language as well as the printing is under responsibility of the Regional Service Organizations 4 LIQUID LENS CLEANING Because the material of the lens is synthet...

Page 8: ...ting press STOP 9 Helpful hints The clock setting will be erased when the system is disconnected from the power supply The set will exit from the clock setting mode if no button is pressed within 90 seconds To set the clock automatically by using a time signal which is broadcast together with the RDS signal see chapter RDS Automatic clock setting via RDS USB Using the remote control IMPORTANT Remo...

Page 9: ...nnected appliance In standby or Eco Power mode switches the set on and selects the audio input from an additional connected appliance 3 VOLUME adjusts the volume level Clock Timer adjusts the hours and minutes 4 TIMER displays the timer setting switches the timer on off enters the timer setting mode press and hold for more than 2 seconds 5 SLEEP set the sleep timer 6 MUTE switches the sound off te...

Page 10: ...ou will hear a click See Appendix How to mount your MCM275 onto walls to learn more about wall mounting Mounting MCM275 onto walls Installation MW loop antenna Speaker left Speaker right FM wire antenna AC power cord Rear connections Warning Never make or change connections with the mains supply switched on Install your set near the AC outlet and where the AC power plug can be reached easily A Spe...

Page 11: ...lied to connect the card reader to the socket on the set s foldable control panel Installation Using AC power 1 Make sure all the connections have been made before switching on the power supply 2 Connect the AC power cord to the wall socket This switches on the power supply When MCM275 is switched to standby it is still consuming some power To disconnect the system from the power supply completely...

Page 12: ... antenna or connect an external antenna for better reception Increase the distance between the Micro HiFi System and your TV or VCR Remove and reconnect the AC power plug and switch on the system again Adjust the volume Disconnect the headphones Check that the speakers are connected correctly Check if the stripped speaker wire is clamped Make sure the MP3 CD was recorded within 32 256 kbps bit rat...

Page 13: ...e Rear Portion and PCBs Figure 3 Figure 2 Dismantling the Rear Portion and PCBs 5 Loosen 2 screws E to remove the Bracket Jack Board as shown in Figure 4 6 Loosen 3 screws F to remove the Main Board as shown in figure 5 Figure 4 Figure 5 Figure 1 Dismantling of the Display Lens the Volume knob 1 Use a flat head screw driver to give a push in the direction as shown in figure 6 Figure 6 2 Place two ...

Page 14: ... Loosen 5 screws J mounting the Key Board to the Front Cabinet to remove the Key Board as shown in figure 8 2 Loosen 4 screws H and 3 screws G to CD Module as shown in figure 8 3 Loosen 2 screws I to remove the Servo Motor Mechanism as shown in figure 8 Figure 8 4 Loosen 4 screws K to remove the Right CD Door Carrier and 4 screws L to remove the Left CD Door Carrier as shown in figure 9 Figure 9 S...

Page 15: ...d 5V Display shows ADC3 Value for ADC3 Input Line Door switch status Y Y N N Display shows Table 1 KEY TEST Button pressed 9 Button pressed Display shows the MCU version MCU Vyy Main menu V refers to Version yy refers to Software version number of the uProcessor counting up from 01 to 99 To enter Service Testprogram hold PLAY Door Open Close buttons depressed while plugging mainscord in Door switc...

Page 16: ...4 1 4 1 SET BLOCK DIAGRAM DAYANG M93BGP BF IC302 W27C512 45Z IC103 UR11 IC300 468D IC601 IC301 AP34063A IC100 IC501 IC102 IC401 IC801 IC701 BR24L02F WE2 IC504 BR24L02F WE2 IC104 CF91D E01J ...

Page 17: ...5 1 5 1 SET WIRING DIAGRAM ...

Page 18: ...PAUSE DETECTOR MULTI PATH DETECTOR CLOCKED COMPARATOR SIGNAL QUALITY DETECTOR RDS RDBS DEMODULATOR INTERFACE REGISTER POWER SUPPLY AND RESET TEST CONTROL C10 C9 100 nF DAVN data available pause output multi path output 8 7 19 18 11 2 9 10 V N I C T U O C S DDD 560 pF OSCILLATOR AND CLOCK I 2 C BUS SLAVE TRANSCEIVER I 2 C BUS RDS RDBS DECODER multiplex input audio inputs level input 4 4 SAA6588 TCO...

Page 19: ...ef 17 refHUHQFH vROWDJH RXWSXW SCOUT 18 EDQG SDVV OWHU RXWSXW CIN 19 FRPSDrDWRU LQSXW LVIN 20 levHO LQSXW SYMBOL PIN DESCRIPTION MRO MPTH TCON OSCO OSCI VSSD VDDD SDA SCL LVIN CIN SCOUT Vref VSSA VDDA MPX AFIN MAD 1 2 3 4 5 6 7 8 9 10 11 12 20 19 18 17 16 15 14 13 MGK534 DAVN PSWN SAA6588T PIN DESCRIPTION RDS RBDS PRE PROCESSOR SAA6588T BLOCK DIAGRAM mute stand by switch input MLC351 output 1 15 k...

Page 20: ...NDOW DETECTOR LAST STATION MEMORY AM FM INDICATOR IN LOCK DETECTOR FM DETECTOR PILOT DETECTOR CHARGE PUMP MULTIPLEXER CRYSTAL OSCILLATOR SHIFT REGISTER FM FRONT END FM OSCILLATOR FM IF2 FM IF1 FM MIXER SEQUENTIAL CIRCUIT STATUS REGISTER AM FRONT END AM OSCILLATOR AM DETECTOR V I CONVERTER AM MIXER AM IF AGC AFC hard mute level PLL DECODER MATRIX SDS MUTE up down level RFGND DATA BUS CLOCK WRITE EN...

Page 21: ...l a t s y r c 5 2 L A T X d n u o r g l a t i g i d 6 2 D N G D BUS CLOCK 27 bus clock input t u p t u o t u p n i a t a d s u b 8 2 A T A D WRITE ENABLE 29 bus write enable input 0 P t r o p t u p t u o e l b a m m a r g o r p 0 3 0 P 1 P t r o p t u p t u o e l b a m m a r g o r p 1 3 1 P t i u c r i c C L z H k 0 5 4 2 3 C F A 0 3 3 l a c i p y t e c n a d e p m i t u p n i 2 t u p n i F I M F ...

Page 22: ... e d o e r e t s 1 1 I X P M t u p n i r e t l p o o l 2 1 I F L t u p n i e t u m 3 1 E T U M k 3 4 l a c i p y t e c n a d e p m i t u p t u o t u p t u o l e n n a h c t f e l 4 1 O L F A k 3 4 l a c i p y t e c n a d e p m i t u p t u o t u p t u o l e n n a h c t h g i r 5 1 O R F A t u p n i r e t l r o t c e t e d t o l i p 6 1 L I F L I P e g a t s X P M d n a r o t c e t e d F I f o d n u...

Page 23: ...LAYOUT DIAGRAM MAIN BOARD 5757 for 37 98 TOP SIDE 6 6 6 6 ...

Page 24: ...6 7 6 7 LAYOUT DIAGRAM MAIN BOARD 5757 for 37 98 BOTTOM SIDE ...

Page 25: ...CIRCUIT DIAGRAM MAIN BOARD 5757 for 37 98 6 8 6 8 ...

Page 26: ...6 9 6 9 LAYOUT DIAGRAM MAIN BOARD 5762 for 05 12 TOP SIDE ...

Page 27: ...LAYOUT DIAGRAM MAIN BOARD 5762 for 05 12 BOTTOM SIDE 6 10 6 10 ...

Page 28: ...CIRCUIT DIAGRAM MAIN BOARD 5762 for 05 12 6 11 6 11 ...

Page 29: ...6 12 6 12 LAYOUT DIAGRAM HP JACK BOARD TOP SIDE LAYOUT DIAGRAM HP JACK BOARD BOTTOM SIDE CIRCUIT DIAGRAM HP JACK BOARD ...

Page 30: ...TOR VC403 9940 000 01615 TRIMMER CAP 10PF N450 VR401 9940 000 04232 VAR RES 100K 3P 1 10W X401 9940 000 04231 CRYSTAL 75KHZ DT381 XR11 9940 000 04238 CRYSTAL 4 332MHZ Note Only these parts mentioned in the list are normal service parts Q631 9940 000 02642 TRANSISTOR 3CA8550 Q803 9940 000 04218 TRANS PHP20N06T RF401 9940 000 04237 FM MODULE FE450 G11 T401 9940 000 04518 AM IFT 7MM C712KC 004 6 13 4...

Page 31: ...ENTS Main Board Layout Top View 7 2 Main Board Layout Bottom View 7 3 Circuit Diagram CD Part 7 4 Circuit Diagram MCU Part 7 5 Layout Diagram SW Board 7 6 Electrical Parts List 7 6 This board isn t intend to repair Only for orientation ...

Page 32: ...7 2 7 2 LAYOUT DIAGRAM CD MCU BOARD TOP VIEW ...

Page 33: ...7 3 7 3 LAYOUT DIAGRAM CD MCU BOARD BOTTOM VIEW ...

Page 34: ...7 4 7 4 CIRCUIT DIAGRAM CD MCU BOARD CD PORTION ...

Page 35: ...7 5 7 5 CIRCUIT DIAGRAM CD MCU BOARD MCU PORTION ...

Page 36: ...79 RADIAL IND 1 2R 2 2UH 5 L157A 994000004279 RADIAL IND 1 2R 2 2UH 5 L158 996510006487 IND MULTILAYER 2 2UH 210MA 10 L159A 994000004226 RAD AXIAL IND 100UH 3 5R L302 994000004289 TOROIDAL COIL 220UH 10 L303 994000004226 RAD AXIAL IND 100UH 3 5R L304A 996510006488 INDUCTOR 10UH 10 0 1R Q100 994000004275 TRANSISTOR 2SB709A Q103 994000004223 TRANSISTOR 3CA8550 HFE 120 220 Q106 994000004224 TRANSISTO...

Page 37: ...he host controller and the HT1622 are all enabled 2 RD I READ clock input with Pull high resistor Data in the RAM of the HT1622 are clocked out on the rising edge of the RD signal The clocked out data will appear on the data line The host con troller can use the next falling edge to latch the clocked out data 3 WR I WRITE clock input with Pull high resistor Data on the DATA line are latched into t...

Page 38: ...LAYOUT DIAGRAM AC POWER BOARD TOP SIDE 8 2 8 2 LAYOUT DIAGRAM AC POWER BOARD BOTTOM SIDE ...

Page 39: ...CIRCUIT DIAGRAM AC POWER BOARD 8 3 8 3 ...

Page 40: ...OARD TOP SIDE LAYOUT DIAGRAM AC SOCKET BOARD BOTTOM SIDE LAYOUT DIAGRAM DOOR MOTOR BOARD TOP SIDE LAYOUT DIAGRAM DOOR MOTOR BOARD BOTTOM SIDE LAYOUT DIAGRAM RC BOARD TOP SIDE LAYOUT DIAGRAM RC BOARD BOTTOM SIDE CIRCUIT DIAGRAM RC BOARD ...

Page 41: ...LAYOUT DIAGRAM DISPLAY BOARD TOP SIDE 8 5 8 5 LAYOUT DIAGRAM DISPLAY BOARD BOTTOM SIDE CIRCUIT DIAGRAM DISPLAY BOARD ...

Page 42: ...8 6 8 6 LAYOUT DIAGRAM KEY BOARD TOP SIDE LAYOUT DIAGRAM KEY BOARD BOTTOM SIDE CIRCUIT DIAGRAM KEY BOARD ...

Page 43: ...CIRCUIT DIAGRAM SP ANT BOARD 8 7 8 7 LAYOUT DIAGRAM SP ANT BOARD TOP SIDE LAYOUT DIAGRAM SP ANT BOARD BOTTOM SIDE ...

Page 44: ...9 1 9 1 SET MECHANICAL EXPLODED VIEW 1 ª º 2 4 7 8 9 3 5 6 36 35 31 ...

Page 45: ...ON 12 05 34 996510010733 COVER FUNCTION PANEL 05 12 98 35 996510010731 BUTTON FUNCTION 36 994000004308 BUTTON PLAY 37 994000004333 IR LENS 38 994000004316 PULLEY SERVO MOTOR 39 994000004314 BRACKET FUNCTION PANEL 40 996510006485 CD MCU BOARD ASS Y M93 05 12 SPK 996510010734 SPEAKER BOX 05 12 FMA 994000004329 FM ANT WIRE 75R 1 0M REM 996510028568 REMOTE CONTROL 05 12 AML 994000004331 AM LOOP ANT 16...

Page 46: ...e parts mentioned in the list are normal service parts VR701 9940 000 04258 ROTARY ENCODER 9940 000 04251 EC TERMINAL 1P F901 9940 000 04243 FUSE PTU 1A 250V 3 9X10 5MM 37 98 RL901 9940 000 04246 RELAY DC6V AC10A 05 12 37 65 100 01366 IR SENSOR FM 6038TM2 5AN 10715 1 060 010 65 1 03605 MICRO PHONE JACK CKX 3 5 23 RC AC SOCKET DOOR MOTOR BOARD DISPLAY KEY SP ANT ...

Page 47: ... DIODE RLS4148 LL 34 L403 996510010713 AM ANT 7MM 7M1A2204N D881 994000004422 SCHOTTKY PMEG2010 EA L605 994000004227 28UH CORE 6T 715R 1 2A D905 996510000271 DIODE RLS4148 LL 34 L620 994000004226 RAD AXIAL IND 100UH 3 5R D991 996510000271 DIODE RLS4148 LL 34 L702 994000004279 RADIAL IND 1 2R 2 2UH 5 D992 996510000271 DIODE RLS4148 LL 34 L810 994000004247 RADIAL AXIAL IND 8 0UH 60MR DZ401 996510010...

Page 48: ...04259 SWITCH TACT TSA 06430 150 SW701 994000004259 SWITCH TACT TSA 06430 150 SW702 994000004259 SWITCH TACT TSA 06430 150 SW703 994000004259 SWITCH TACT TSA 06430 150 SW704 994000004259 SWITCH TACT TSA 06430 150 SW705 994000004259 SWITCH TACT TSA 06430 150 SW708 994000004259 SWITCH TACT TSA 06430 150 SW709 994000004259 SWITCH TACT TSA 06430 150 SW710 994000004259 SWITCH TACT TSA 06430 150 Note Onl...

Page 49: ...mode LED light is on 3 The LCD will display the software version as Mxxx xxx To clear all program station of tuner mode 1 Plug in the set 2 Hold STOP button when set on ECO Power mode LED light is on 3 The LCD will display full screen all program station of tuner will be cleared Starting Serial Number EF2A0913000001 SOFTWARE VERSION CHECKING 10 1 10 1 ...

Page 50: ...SET BLOCK DIAGRAM 11 1 11 1 ...

Page 51: ...SET WIRING DIAGRAM 11 2 11 2 ...

Page 52: ...PCB LAYOUT MAIN BOARD TOP VIEW 12 1 12 1 ...

Page 53: ...12 2 12 2 PCB LAYOUT MAIN BOARD BOTTOM VIEW ...

Page 54: ...12 3 12 3 CIRCUIT DIAGRAM MAIN BOARD ...

Page 55: ...PCB LAYOUT CD CD DOOR MOTOR LIMIT SWITCH BOARD TOP VIEW 13 1 13 1 ...

Page 56: ...13 2 13 2 PCB LAYOUT CD CD DOOR MOTOR LIMIT SWITCH BOARD BOTTOM VIEW ONLY FOR REFERENCE ...

Page 57: ...13 3 13 3 CIRCUIT DIAGRAM CD LIMIT SW BOARD ONLY FOR REFERENCE ...

Page 58: ...PCB LAYOUT AC POWER HP JACK SP ANT JACK RC BOARD TOP VIEW 14 1 14 1 ...

Page 59: ...14 2 14 2 PCB LAYOUT AC POWER HP JACK SP ANT JACK RC BOARD BOTTOM VIEW ...

Page 60: ...14 3 14 3 PCB LAYOUT KEY BOARD TOP VIEW PCB LAYOUT KEY BOARD BOTTOM VIEW ...

Page 61: ...14 4 14 4 CIRCUIT DIAGRAM KEY BOARD AC POWER BOARD ...

Page 62: ...14 5 14 5 CIRCUIT DIAGRAM HP JACK SP ANT RC BOARD ...

Page 63: ...SET MECHANICAL EXPLODED VIEW 15 1 15 1 4 9 ...

Page 64: ...5 37 SW705 996510026354 SWITCH TACT KFC A06 43 MU3 996510026378 IC 2M FLASH EN25P20 100GCP SW708 996510026354 SWITCH TACT KFC A06 43 MU4 996510026353 IC SA1469XH 4CH MOTOR DRIVER 19 996510010730 BUTTON OPEN CLOSE U1 996510026375 IC AZ393M E1 MU4 996510026398 IC MM1469XH 4CH MOTO DRIVER 20 996510010729 LENS BAR U2 996510026333 IC FM24C02 SO T MY1 996510026365 CER RESONTOR 1693MHZ 05 23 996510010721...

Page 65: ...811 996510016501 DIODE IN4148FT 72 JK701 996510010715 USB JACK 4P AC SOCKET PORTION F601 994000004229 FUSE PTU 2A 250V JK702 994000003605 MICRO PHONE JACK L901 996510026396 LINE FILTER 38mH 38mH 380MR F601 996510026387 FUSE 30TS 2A 250V SW701 996510026354 SWITCH TACT KFC A06 43 RC PORTION F601 996510026389 FUSE 3N 2A 250V SW702 996510026354 SWITCH TACT KFC A06 43 RI501 996510001366 IR SENSOR OPTO ...

Page 66: ...9 2 Mechanical and Accessories Partslist updated 40 996510006485 CD MCU BOARD ASS Y M93 05 12 WAS 996520033047 1 4 Manual 3141 785 32374 In this version Page 9 1 Page 9 2 have been updated 1 In Page 9 1 Item No 33 Item No 34 exchanged the original sequence numbers No 33 No 34 mixed up 2 In Page 9 2 Pos No 33 new 12nc for 98 added 33 996510012873 PANEL FUNCTION 98 1 5 Manual 3141 785 32375 In this ...

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