Philips MC-M570 Service Manual Download Page 30

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Wiring Diagram 5DTC Module

10-6

5DTC Wiring Diagram 2002 08 30

8001

8052

dig.out

(optional)

8051

to / from

AF Board

to / fr

CD-drive

1825

1820

1800

1824

1802

1801

1451

1823

Control Board

Motor Board

MP3 Board

CD Board

8021

The FFC-Cables are available as sparepart.

8001

3103 308 93090

FFC CABLE 16Pin 80mm BD

Connection from CD Board to CD Drive

8051

3103 308 93100

FFC-CABLE 19Pin 90mm AD

Connection from CD Board to MP3 Board

8052

3103 308 93120

FFC CABLE 8Pin 80mm BD

Connection from CD Board to Control Board

8021

3103 308 93110

FFC-CABLE 16Pin 60mm AD

Connection from Control Board to Motor Board

Summary of Contents for MC-M570

Page 1: ...ont Board 6 ECO6 Tuner Board Systems Non Cenelec 7A Systems Cenelec 7B 5DTC Module MP3 Version 10 Power 2003 Module 100W Class D 11 Set Mechanical Exploded view parts list 12 Copyright 2003 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 me...

Page 2: ... rejection 28dB Distortion at RF 50mV M 80 5 AMPLIFIER Output power 6 ohm 1kHz 10 THD L R 2 x 100W RMS Output power 6 ohm 60Hz 12 5kHz 10 THD L R 2 x 95W FTC 37 Frequency response within 3dB 50Hz 16kHz MAX Sound On Off Digital Sound Control DSC Jazz Rock Pop Optimal Virtual Environment Control VEC Cyber Hall Concert Cinema Off Input sensitivity Aux in at 1kHz 500mV at 600 ohm CDR in at 1kHz 1000mV...

Page 3: ...ase the fixation of the Combi Board pos 1102 1001 to Bracket Combi pos 252 by releasing the 2 catches C1 see Figure 5 and pulling the Combi Board outwards as shown in Figure 6 3 Uncatch 2 catches C2 see Figure 5 on the left right sides of the Cabinet Front pos 101 and slides the Front Panel assembly out towards the front Detaching the Front Panel assembly from the Bottom Rear assembly 4 To remove ...

Page 4: ...remove the USB PC LINK Board pos 1106 Dismantling of the Rear Panel assembly 1 Loosen 3 screws H and 2 catches C3 see Figure 9 to remove the Tuner Board assembly 2 Loosen 1 screw K see Figure 9 to free the Mains Socket Board pos 1102 1002B 3 Loosen 4 screws J and 2 catches C4 see Figure 9 to remove the Cabinet Rear pos 256 by sliding it out towards the rear see Figuer 10 Note Tuner Board assembly ...

Page 5: ...Tuner board and or 5DTC Module completely unless the fault is suspected 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 properly into the flex sockets before encasing otherwise faults may occurs ...

Page 6: ...tivities can be carried out SERVICE PLAY MODE For MC 500 only DTC works as in normal operation In case of failures error codes according to Table 2 will be displayed Display shows 5DTC Vnn Version of 5DTC control software nn Version Number Various other Tests Activated with ACTION TEST Q EEPROM FORMAT TEST Load default data Display shows NEW for 1 second Caution All presets from the customer will ...

Page 7: ...ECTOR HP_OUT FRONT PWDN TRAFO SOURCE SELECTOR AUX CDR IR EYE USB DECODER TMP88CU74YF D F1 LOW_POWER_CONTROL USB ATTEN AM 80 MOD INCREDIBLE 1 90V 67dBA FM 67 5 kHz 500mV CONTROL 12V_A TREBLE HP DET FTD INTERFACE VOL 1 VOL 2 9 1V REGULATOR LM317P I2C SURROUND 5V6_ECO MAIN SIGNAL PATH MEASUREMENTS ARE IN AUX MODE LEVELS AT MAX VOL F2x NOT USED FOR 37 I2C CLK D2 3 0dB D LOW_POWER_SUPPLY 12V_A A IS FIL...

Page 8: ...VISION 8004 8P 280mm AD FOLD 1 FAN 8303 1105A COMBI 1102 1001 CDC KEY 1105B EHT 1336 1 FCS 1703 1 9P 180mm AD 1 FRONT EHT 1401 5DTC 1103 ECO6 1101 FCT 1022 1 TRAFO DIP 0201 USB 1106 8P 100mm BD 1 FCT 1120 19P 180mm AD FOLD 1 FCS 1401 1006 DIGITAL OUT 1004 FCT 1013 1 8009 1 FCT 1026 FCT 1400 1302 HP 1 FCS 1702 FCS 1402 8006 7P 220mm AD TO BOTTOM PLATE 8008 SUPPLY MAINS 1102 1002 8005 FCT 1210 LPS S...

Page 9: ...d col Dp 8G a h j p k b f m g c e r n d FTD DISPLAY PIN CONNECTION 1G 10G 10G 2G 9G 2G 9G S6 S5 S4 S3 S2 S1 S7 S7 a d j k b h f p n c r g m e S1 S2 S3 S4 S5 S6 S10 S9 S8 S7 S6 S5 S4 S3 S2 S1 9G 1G 10G 2G 3G 4G 5G 6G 8G 7G col Dp B4 B3 B2 B1 B6 B5 B8 B9 B7 B4 B3 B2 B1 B6 B5 B8 B9 B7 FRONT BOARD TABLE OF CONTENTS FTD Display Pin Connection 6 1 Front Board Component layout 6 2 Front Board Chip layout...

Page 10: ... 47p 2445 47p 2440 D 100p 2402 100K 3413 1M 3439 2479 22p 22u 2461 D 50V 100n 2483 VSS 4 7 WC_ 3503 1K 1K 3515 1K 3513 100p 2400 470R 3475 3505 1K D 100R 3469 1K 3472 680K 3404 47p 2444 3537 9412 4K7 CD 1N4148 6408 6402 1N4148 BC847B 7404 2K7 3420 1K 3516 100R 3466 1K 3522 D 1K 3462 3510 1K 1K 3498 1K 3500 10K 3542 1K 3502 3487 1K 10K 3418 1K 3507 3481 1K TU 1K 3524 1K8 3423 1K 3489 220K 3424 1K 3...

Page 11: ...303 1315 1K8 3343 5401 4u7 820R 820R 820R 820R 820R 820R 820R 820R 820R 820R 820R 820R 3304 2473 100n USB 2K7 3344 7406 BC857B 2307 ADC 6301 100p 2K7 3323 3345 150R 2K7 3335 ADC 3313 3301 47K 5300 2u2 6302 1301 FE ST VK N 1 1306 10K 3528 100p 2310 1307 4407 D D 3346 10K 100n 2306 1328 560R 3340 4404 820R 3300 560R 3330 1310 1304 5302 2u2 6305 3310 3307 820R 3328 3326 1320 270R 3309 1N4148 6300 HP ...

Page 12: ... 50V 4u7 2429 3543 1K 100n FTD 2478 470R 3453 100n 2464 220R 3429 47p 2448 D I2C 470R 3450 2453 47p 2482 100n 220R 3449 9413 3432 10R 47p 2450 470R 3452 10K 3440 3 4 5 6 7 8 9 47p 1402 FE ST VK N 1 2 10K 3447 CD 16V 47u 2425 FTD 4408 FE ST VK N 1 10 11 12 13 14 15 16 17 18 19 2 3 4 2432 4u7 5409 100p 1K 3444 2477 220p 2476 220p 220p 2475 220p 2474 100n 2472 D 10p 2451 4409 10p 2447 220R 3448 D TU ...

Page 13: ...bly drawing shows a summary of all possible versions For components used in a specific version see schematic diagram and respective parts list 3139 113 3501 pt2 dd wk0251 6 7 6 7 CDC KEY BOARD CIRCUIT DIAGRAM CDC KEY BOARD COMPONENT LAYOUT CDC KEY BOARD CHIP LAYOUT VARIANT TABLE X X X X 7409 33K 15K 15K 33K 3438 X X 3545 10K 10K 1M 2M2 2M2 3403 3534 1K8 1K8 3423 1K8 1K8 1K8 1M 680K 100K 100K 3406 ...

Page 14: ...10 4822 117 12968 820R 5 0 62W 3311 4822 117 12968 820R 5 0 62W 3312 4822 117 12968 820R 5 0 62W 3313 4822 117 12968 820R 5 0 62W 3314 4822 117 12968 820R 5 0 62W 3315 4822 117 12968 820R 5 0 62W 3316 4822 051 30103 10k 5 0 062W 3317 4822 051 30103 10k 5 0 062W 3318 4822 051 30272 2k7 5 0 062W 3319 4822 051 30221 220R 5 0 062W 3320 4822 051 30271 270R 5 0 062W 3321 4822 051 30391 390R 5 0 062W 332...

Page 15: ...4822 051 30103 10k 5 0 062W 3532 4822 052 10688 6R8 5 0 33W 3533 4822 052 10109 10R 5 0 33W 3536 4822 051 30472 4k7 5 0 062W 3537 4822 051 30472 4k7 5 0 062W 3538 4822 116 52175 100R 5 0 5W 3539 4822 051 30103 10k 5 0 062W 3540 4822 051 30102 1k 5 0 062W 3543 4822 051 30102 1k 5 0 062W 4300 4822 051 30008 0R Jumper 0603 4301 4822 051 30008 0R Jumper 0603 4302 4822 051 30008 0R Jumper 0603 4400 482...

Page 16: ...780 Coil 4 7uH 10 5411 3198 018 54780 Coil 4 7uH 10 DIODES 6300 4822 130 30621 1N4148 6301 9322 179 76676 LED VS LTL 816EELC 6302 9322 178 15676 LED VS LTL 8166FTNN 6303 9322 178 15676 LED VS LTL 8166FTNN 6304 9322 178 15676 LED VS LTL 8166FTNN 6305 9322 178 15676 LED VS LTL 8166FTNN 6306 9322 178 15676 LED VS LTL 8166FTNN 6307 9322 178 15676 LED VS LTL 8166FTNN 6401 4822 130 30621 1N4148 6403 482...

Page 17: ... 6 5 43 C D 450kHz 450kHz 450kHz 20 75kHz VStabA VStabB VStabB VStabA VStabB 10 7 MHz 10 7 MHz 35 9 Vdd Vcc1 7 23 VStabA VStabB 38 34 22 Vcc2 8 ECO6 Systems 140499 LF filter RDS MPX RDS MPX stereo clock data enable Version 1120 1 8 FM Frontend AM Frontend AM FRAME AERIAL B 1103 1101 1102 A FM MPX buffer ampl 5 Discriminator 10 7 MHz Vdd Vcc1 Vcc Vcc2 AM RF AM Osc FM Osc FM RF FM IF 1 FM IF 2 AM IF...

Page 18: ...1n 3134 22K 6105 2 HN1V02H 100n 2163 T141 7KL 1K 3144 5102 3157 100K T109 470R 3153 2130 22n 220R 3105 3142 100K 3167 120R 33p 2149 2K2 3145 1132 C PAD T103 T111 2164 470n T102 2140 15p 2139 2138 2u2 82p 2133 1u 3103 8K2 T120 4p7 2154 3156 1101USA YKD21 100K 2161 100n 5119 2119 10p T142 5123 11p 2106 3172 6106 BAS216 100n 2165 5K6 3154 3155 220R 330R 2124 33K 3176 22n WRITE EN 5114 7P MUTE P0 P1 P...

Page 19: ...riginal frame antenna has to be used 2 RC network serves for damping the IF filter while adjusting the other one 4 MW has to be aligned before LW Waverange Input frequency Input Tuned to Adjust Output Scope Voltmeter FM 87 5 108MHz 65 81 74 87 5 108MHz FM MW version 9kHz grid 531 1602kHz as low as possible ECO6 System non Cenelec stage 3 120900 TUNER BOARD ECO6 Systems non Cenelec componentside vi...

Page 20: ...10 63V RDS only RESISTORS 3101 4822 051 20333 33kΩ 5 0 1W 3102 4822 117 10837 100kΩ 1 0 1W 3103 4822 051 20822 8 2kΩ 5 0 1W 3104 4822 117 13577 330Ω 1 0 1W 3105 4822 117 11503 220Ω 5 0 1W 3132 4822 051 20479 47Ω 5 0 1W 3134 4822 051 20223 22kΩ 5 0 1W 3141 4822 117 11148 56kΩ 1 0 1W 3142 4822 100 12159 TRIMPOT 100kΩ RESISTORS 3143 4822 051 20223 22kΩ 5 0 1W RDS only 3144 4822 051 10102 1kΩ 2 0 25W ...

Page 21: ... B V Stab B V Stab A V Stab B 10 7 MHz 10 7 MHz 35 9 Vdd Vcc1 7 23 V Stab A V Stab B 38 34 22 Vcc2 8 ECO6 Systems Cenelec 140499 V Loop FM AM RF AM Osc FM IF 1 FM IF 2 LF filter MPX buffer ampl RDS MPX 5 RDS MPX stereo clock data enable Version 3 1120 AM IF 1 AM IF 2 AM AFC 1 8 AM Frontend 2 AM FRAME AERIAL B 1103 1101 1102 A FM AM FM Discriminator 10 7 MHz Vdd FM Vcc1 Vcc Vcc2 MW LW AM RF AM Osc ...

Page 22: ...4 22n USA 22n USA C PAD 1131 T141 2106 11p 20p_LW 0R 4104 0R 41xx 2165 100n 1130 C PAD 10K 3180 2150 100n BZX284 C11 6107 T102 2127 220n 2169 2n2 100K 3170 1 I 3 O 2125 560p 5109 2 G 470R 3152 2108 100p 3125 10K 3153 470R 330R 3193 T103 120R 3167 100R 3195 7 8 33K 3176 8 5122 1 2 3 4 6 5123 1 2 3 4 6 7 5110 G 2 I 1 O 3 5115 1 2 3 4 6 7 8 2 3 4 6 7 8 5119 1 2135 100n 2163 LW 7104 BC337 40 2145 220p...

Page 23: ...ce Testprogram By selecting the TUNER TEST test frequencies will be stored as preset frequencies automatically AM FRAME AERIAL FM 75Ω FM FRONTEND Birdy Filter ECO6 Sys Cenelec layout stage 6 160501 1101 B5 1102 B5 1103 C5 1110 B4 1120 A4 1130 A5 1131 C5 1132 A4 2106 B4 2107 B3 2128 A3 2129 B3 2133 C1 2138 B1 2144 B1 2162 A4 2191 B4 3142 C2 5102 C4 5103 C4 5109 B3 5110 A2 5111 A3 5112 A2 5114 A2 51...

Page 24: ...98 021 38210 820Ω 5 0 06W 3132 4822 051 20479 47Ω 5 0 1W 3134 4822 051 20223 22kΩ 5 0 1W 3135 3198 021 31020 1kΩ 5 0 06W 3137 4822 051 20223 22kΩ 5 0 1W LW only 3141 4822 117 11148 56kΩ 1 0 1W 3142 4822 100 12159 TRIMPOT 100kΩ 3143 4822 051 20223 22kΩ 5 0 1W RDS only 3144 4822 051 10102 1kΩ 2 0 25W RDS only 3145 4822 117 11449 2 2kΩ 1 0 1W 3146 4822 051 20229 22Ω 5 0 1W 3150 4822 117 10833 10kΩ 1 ...

Page 25: ...on of switches 10 8 Blockdiagram 10 9 CD BOARD Circuit Diagram 10 10 Component Layout side A 10 11 Component Layout side B 10 12 CONTROL BOARD Circuit Diagram 10 13 Component Layout 10 13 MP3 BOARD Circuit Diagram 10 14 Component Layout 10 15 Exploded view loader 10 16 Partslist 10 17 5DTC Module MP3 version Layout stage 4 ...

Page 26: ...he way as indicated in the picture below 3 MEASURE THE EYE PATTERN SIGNAL EYE PATTERN SIGNAL JITTER MEASUREMENT Measure the signal direct on resistor 3898 using an oscilloscope see also chapter 10 9 See below examples of the signal Amplitude should read at least 700mVpp using SBC444A good bad If the oscilloscope shows a signal like the bad one and or the amplitude decreases within 1minute the CD d...

Page 27: ... PROCESSOR OFFSET MEASUREMENT Each ADC input of the CD10 may have an offset too Also this offset leads together with the offsets of the CD Drive to poor playability of some CDs skipping tracks Start the Service Test Program section Focus Test using a CD RW disc Use a DC Millivoltmeter for measurement The offsets can be measured on capacitors near the signal processor See drawing below The value sh...

Page 28: ...move paperclip from flexfoil 7 Connect flexfoil to new CD drive 8 Remove ESD protection solder joint from laserunit see picture below CHARGED CAPACITORS ON THE SERVO BOARD MAY DAMAGE THE CD DRIVE ELECTRONICS WHEN CONNECTING A NEW CDM MECHANISM THAT S WHY BESIDES THE SAFETY MEASURES LIKE SWITCH OFF POWER SUPPLY ESD PROTECTION ADDITIONAL ACTIONS MUST BE TAKEN BY THE REPAIR TECHNICIAN 10 4 WARNING fi...

Page 29: ...10 5 Location of Printed Circuit Boards 5DTC Location of PCBs 2002 08 29 CD Board Control Board Motor Board MP3 Board 8051 8052 8021 ...

Page 30: ...d MP3 Board CD Board 8021 The FFC Cables are available as sparepart 8001 3103 308 93090 FFC CABLE 16Pin 80mm BD Connection from CD Board to CD Drive 8051 3103 308 93100 FFC CABLE 19Pin 90mm AD Connection from CD Board to MP3 Board 8052 3103 308 93120 FFC CABLE 8Pin 80mm BD Connection from CD Board to Control Board 8021 3103 308 93110 FFC CABLE 16Pin 60mm AD Connection from Control Board to Motor B...

Page 31: ...ver pos 29 forward to its endposition see picture 4 Release snap as shown in picture 5 and pull tray out To remove a CD from Play Position perform following steps 1 Open tray 1 as described before 2 Tear the tray out with speed see picture 6 The tray can be inserted aftewards without any alignment 3 Move lever pos 29 forward to its endposition see picture 4 4 Push lever pos 31 forward see picture ...

Page 32: ...10 8 Location of switches ...

Page 33: ...LDER HEIGHT COLLECTOR OPEN SW OPEN SW HOME SW HOME SW I2C_SDA OSC DISC SENSOR COLLECTOR 5VSWITCH GND GND 5V GND GND GND 7800 5 17 21 52 57 5V 22 Vref Vref 23 7811 63 8 13 15 16 28 29 30 4 19 16 17 RST 27 1 2 13 16 23 24 8 5 6 7 3 1 3 3V Blockdiagram 5DTC 2002 09 05 5V 5VST 3 3V A 12V 7815 5V Vref 3servo 8V 7801 12V BLOCK DIAGRAM 5DTC 5VST 28 VREF VREF AOPAMP VREF 5VSWITCH FOCUS MOTOR RADIAL MOTOR ...

Page 34: ...R AUDIO PROCESSING PRE FUNCTION CONTROL SRAM ADDR INTERF EBU DET PEAK CORR ERROR PROCESSOR SUBCODE END FRONT VREF GEN ADC VSSD3 WCLI WCLK V1 V2 V3 V4 V5 VDDA1 VDDA2 VDDD1P VDDD2C VNEG VPOS VRIN VSSA1 VSSA2 VSSD1 VSSD2 SBSY SCL SCLI SCLK SDA SDI SELPLL SFSY SILD SL STATUS SUB TEST1 TEST2 TEST3 ISLICE KILL LDON LN LP MOTO1 MOTO2 R1 R2 RA RAB RCK RESET RN RP CL11 4 CL16 CRIN CROUT D1 D2 D3 D4 DATA DO...

Page 35: ...on 2002 09 12 1800 C2 1801 E4 1802 A1 2800 A2 2801 A2 2802 B2 2803 C1 2808 A2 2810 A3 2811 D4 2812 D4 2813 E4 2814 C4 3800 C1 3802 D2 3803 D2 3804 D1 3805 D1 3806 D1 3807 D2 3808 D1 3808 D2 3809 D2 3810 B1 3811 C1 3815 C3 3816 C4 3818 D4 3819 D3 3820 D3 3821 E4 3823 C4 3824 C3 3826 A2 3827 C1 3828 C2 3829 B1 3830 B1 3831 B1 3832 E4 3833 E4 3834 E3 3835 E3 3836 E3 3837 E3 3838 E3 3839 E3 3840 E3 38...

Page 36: ...0 43 36 BFSR1 44 BFSR2 BFSX0 53 73 BFSX1 BFSX2 54 31 BIO 77 CLKMD1 78 CLKMD2 79 CLKMD3 CLKOUT 94 CVDD1 12 A3 134 A4 136 A5 137 A6 138 A7 139 A8 140 A9 141 BCLKR0 41 BCLKR1 38 BCLKR2 42 BCLKX0 48 71 BCLKX1 BCLKX2 49 BDR0 45 35 BDR1 BDR2 47 A1 132 A10 5 A11 7 A12 8 A13 9 A14 10 A15 11 A16 105 A17 107 A18 108 109 A19 A2 133 110 A20 A21 143 A22 2 7451 A0 131 2466 100n 2463 3474 15R 1u 3465 100R 2451 1...

Page 37: ...10 16 10 16 Exploded view 5DTC mechanic for orientation only ...

Page 38: ... 5 50V 2864 4822 126 14508 180pF 5 50V 2865 4822 126 14508 180pF 5 50V 2866 4822 126 14508 180pF 5 50V CAPACITORS 2869 3198 017 34730 47nF 10 16V 2870 4822 126 13883 220pF 5 50V 2871 4822 126 13883 220pF 5 50V 2872 4822 126 13883 220pF 5 50V 2873 4822 126 13883 220pF 5 50V 2874 4822 126 13883 220pF 5 50V 2875 4822 126 13883 220pF 5 50V 2876 3198 017 44740 470nF 20 10V 2877 4822 124 40433 47µF 20 2...

Page 39: ... 2 7kΩ 5 0 06W 3901 4822 051 30561 560Ω 5 0 06W 3902 4822 117 11139 1 5kΩ 1 0 1W 3903 4822 051 30332 3 3kΩ 5 0 06W 3904 4822 051 30332 3 3kΩ 5 0 06W 3905 4822 051 30681 680Ω 5 0 06W 3906 4822 051 30471 470Ω 5 0 06W 3907 4822 117 12968 820Ω 5 0 06W 3908 4822 051 30222 2 2kΩ 5 0 06W 3909 4822 117 13632 100kΩ 1 0 06W 3910 4822 051 30471 470Ω 5 0 06W 3912 4822 051 30221 220Ω 5 0 06W 3916 4822 051 3047...

Page 40: ...051 30272 2 7kΩ 5 0 06W 3838 4822 051 30103 10kΩ 5 0 06W 3839 4822 051 30272 2 7kΩ 5 0 06W 3840 4822 051 30272 2 7kΩ 5 0 06W 3841 4822 051 30103 10kΩ 5 0 06W 3842 4822 051 30103 10kΩ 5 0 06W 3845 4822 051 20159 15Ω 5 0 1W 3850 4822 117 12706 10kΩ 1 0 06W 3851 4822 117 12706 10kΩ 1 0 06W 3852 4822 117 12706 10kΩ 1 0 06W 3853 4822 117 12706 10kΩ 1 0 06W 3854 4822 117 12706 10kΩ 1 0 06W RESISTORS 385...

Page 41: ...51 30103 10kΩ 5 0 06W 3468 4822 051 30103 10kΩ 5 0 06W 3469 4822 051 30101 100Ω 5 0 06W 3470 4822 117 12971 15Ω 5 0 06W 3471 4822 051 30339 33Ω 5 0 06W 3472 4822 051 30154 150kΩ 5 0 06W 3473 4822 117 13632 100kΩ 1 0 06W 3474 4822 117 12971 15Ω 5 0 06W 3475 4822 051 30101 100Ω 5 0 06W 3476 4822 051 30101 100Ω 5 0 06W 3477 4822 051 30471 470Ω 5 0 06W 3478 4822 051 30471 470Ω 5 0 06W 3479 4822 051 30...

Page 42: ...Source Selector part 11 8 Audio Frequency Logic part 11 9 Oscillator Pre Amplifier part 11 10 Amplifier part Left Channel 11 11 Amplifier part Right Channel 11 12 Component Layout Copperside view 11 13 Componentside view 11 14 MAINS BOARD Component Layout 11 15 Circuit Diagram 11 16 Partslist 11 17 Power 2003 Module 100W Class D ...

Page 43: ...Ts require drivers which supply the gates One for the high side FET and one for the low side FET Because of the different supply voltages also an additional level shifter is necessary per driver Output filter The output filter is necessary to block the 500kHz square wave signal from the speaker It consists of a series mode coil 5101 and a capacity of approx 550nF 2116 2134 which forms a Chebycheff...

Page 44: ...start up no signal The necessary delay for the rising edge is generated by the level shifter mainly the pull up 3117 and the input capacity of the driver pin 13 of 7105 F The last stage in the gate driver consists of three gates in parallel for increased output current for the capacitive load afterwards comes a 47Ω series resistor for soft rising edges and a transistor for very fast falling edges ...

Page 45: ...fect replace following parts 7218 7221 7209 7228 7208 3205 3209 and 2206 In case 7231 is defect replace following parts 7231 7210 7235 7227 3241 3243 and 2220 If none of the FETs is defective the fault is most probably located in the modulator To check the operation follow the given signals General description of Oscilloscope setup The following signals are measured on condition AUX in 500mV 1kHz ...

Page 46: ... width modulated square wave the analog Audio signal is included Measurements with an analog scope will show a jitter on the falling edge The modulator frequency is still fixed to 500kHz Similar to a frequency modulation in this case the amplitude of the analog audio signal varies the pulse width the frequency defines the speed Measuring point G The low side driver signal Ch1 is the modulator outp...

Page 47: ... Measuring point I Digital output signal Measuring point J The following three signals are measured after output filter 5101 with different timebases Measuring point K After common mode coil 5102 the audio signal is restored 11 6 Service Hints ...

Page 48: ... following supplies 12V 5V6 5V_AMP Pre Amplifier mute circuit Adjustment of offset Square wave Oscillator Headphone Amplifier Subwoofer out provisional only Port Expander shift register Generation of 5V_CD Fan control Modulator Driver Level shifter Power FETs Protection circuits Modulator Driver Level shifter Power FETs Protection circuits Speaker relay p Chapter 11 8 Signal flow Chapter 11 10 Cha...

Page 49: ...3 3576 12K 7 8 8K2 FE BT VK N 1013 1 2 3 4 5 6 11 7 14 10 15K 3577 7500 E 22u 2541 470p 2564 15K 5V6 3560 100R 3514 1 7 14 2 3526 330K 7500 A AMP 10K 3519 3504 10K 100n 2519 470p 2577 33n 2520 2538 1n 560R 5 6 7 8 9 1K5 3500 3530 17 18 19 2 20 21 22 23 24 25 26 27 28 3 4 7508 1 10 11 12 13 14 15 16 3566 100R TDA7468D GND_A 2567 470p 2581 1u AMP TU_R TU_L COAX1 shield SA_IN Spectrum Analyzer 5V5_CO...

Page 50: ...2 4 D0 D1 5 6 D2 7 D3 9 D4 10 D5 11 D6 D7 12 8 GND 2 SCL 3 SDA 1 SO 13 VDD M62320FP PORT EXPANDER 7406 CS0 16 15 2421 100n 1u 2403 2402 100u 6405 BAS316 1K 3433 3404 6K8 100p 2400 6402 1N4148 7410 BC857BW BC817 25W COL 7409 5V 5V6 2420 1u 4K7 3407 2408 1u 470R 3413 GND_D 39R 3430 5V 3420 2K2 3418 470R 5V_CD 1K 3432 22u 2412 39R 3425 10R 3406 3429 GND_A 3431 5K6 39R 2414 470p 2419 100p 3K3 3402 BZX...

Page 51: ...K8 470R 3345 3341 1K 3321 100n 1K 3334 2322 2313 1n 9 8 3 4 7312 D 7312 B 7324 100n 2320 2326 100p 100n 4K7 3580 2319 2333 100p 7309 BC847BW 7323 2316 100n BC857BW 7316 7321 LM317P A I O 3339 2K2 BZX384 C3V3 6300 3337 470R 2 1 150K 3325 7320 A NJM4560 3 3329 2K2 47u 2321 8 4 10K 3322 NJM4560 7320 B 5 6 7 2334 33p 3343 150R 2332 100p 2300 220p 3K3 3332 33K 3317 47K 3306 7317 BC847BW 100n 2336 100n ...

Page 52: ...3130 1u0 2113 7121 1K 3125 7114 220p 2122 5 6 3103 1K0 7105 C 100n 2130 GND_SHIELD BZX384 C6V8 6106 2 100n 7118 A 1 2128 4R7 3109 9202 7129 5100 3120 8K2 4K7 4n7 2119 BZX384 C6V8 6108 3149 4 2120 1u 7122 B 3 1 7 2 7128 5103 7105 A 6 2114 10u 7122 C 5 10 7105 E 11 3117 1K8 1u 4n7 2125 13 7 12 2132 5K6 3133 7118 F 9272 100n 2103 470R 7118 B 3 4 3139 4R7 3135 7119 10K 3127 3119 22K 1n 2117 2102 330u ...

Page 53: ... 4 1211 100n 2200 1212 4R7 3215 3229 10K 10K 3240 100K 3264 4K7 3248 BAV99 6211 1 3 2 2212 220p 7239 1K5 3261 3247 4R7 7222 2238 1u0 2239 1u0 2211 1u0 3255 1K0 100K 3217 1K 3211 4K7 3210 4 7209 B 3 220p 2217 2236 1u 5200 6217 BAS316 2234 220n 7210 11 10 6 7209 E 7232 C 5 3219 18K 11 10 1n0 2220 3218 7235 E 5202 HF2024 1 2 4 3 4K7 5201 1 3 2 7208 BAV99 6205 1N4148 7203 6209 BZX384 C4V7 1307 A 2 1 6...

Page 54: ...9 1N4148 6200 1N4148 6211 6219 1N4148 3 4 5 6 7 1222 1210 1 2 2212 6m8 T1A6 1201 3212 4M7 4 SDKP 1206 2 5 3 6 1 1207 19372 19372 2219 2n2 2211 T2A 3m3 1N4003 6226 2216 10u 2232 3300u OZ 1208 4 3 5 7 6 8 1 2 2224 10n MAINS_2 Vkk MAINS_2 AMP AMP PWR_DWN LOW_PWR_CTRL D2 D2 D AMP AMP 5V6_ECO LOW_PWR_CTRL NTC PWR_DWN F2 F1 Vkk 12V_RELAIS D2 D MAINS_1 MAINS_2 5V6_ECO 12V_RELAIS MAINS_1 NTC F1 F2 DISPLAY...

Page 55: ...020 00644 3300µF 20 50V RESISTORS 3200 4822 050 23303 33kΩ 1 0 6W 3201 4822 052 10478 4 7Ω 5 NFR25 3202 4822 050 23303 33kΩ 1 0 6W 3203 4822 116 52276 3 9kΩ 5 0 5W 3204 4822 053 21106 10MΩ 5 0 5W 3205 4822 116 52228 680Ω 5 0 5W 3206 4822 053 21106 10MΩ 5 0 5W 3207 4822 116 52283 4 7kΩ 5 0 5W 3211 4822 116 52219 330Ω 5 0 5W 3212 4822 111 30893 4 7MΩ 5 0 2W 3213 4822 116 83883 470Ω 5 0 16W 3215 4822...

Page 56: ...nF 5 63V 2217 4822 122 33575 220pF 5 50V 2218 2222 580 15649 100nF 10 50V CAPACITORS 2219 5322 126 11578 1nF 10 63V 2220 5322 126 11578 1nF 10 63V 2221 4822 126 13193 4 7nF 10 63V 2222 3198 017 41050 1µF 20 10V 2224 4822 124 81151 22µF 20 50V 2225 2020 012 93762 330µF 20 50V 2226 4822 126 13193 4 7nF 10 63V 2227 2020 552 94427 100pF 5 50V 2229 2222 580 15649 100nF 10 50V 2234 4822 121 42408 220nF ...

Page 57: ...Ω 1 0 06W RESISTORS 3111 4822 051 30682 6 8kΩ 5 0 06W 3112 4822 117 12925 47kΩ 1 0 06W 3113 4822 051 30223 22kΩ 5 0 06W 3114 4822 051 30472 4 7kΩ 5 0 06W 3115 4822 051 30102 1kΩ 5 0 06W 3116 4822 051 30474 470kΩ 5 0 06W 3117 4822 117 12903 1 8kΩ 1 0 06W 3118 4822 051 30682 6 8kΩ 5 0 06W 3119 4822 051 30103 10kΩ 5 0 06W 3120 4822 117 12902 8 2kΩ 1 0 06W 3121 4822 117 12902 8 2kΩ 1 0 06W 3122 4822 0...

Page 58: ... 051 30682 6 8kΩ 5 0 06W 3342 4822 051 30121 120Ω 5 0 06W 3343 4822 051 30151 150Ω 5 0 06W RESISTORS 3344 4822 051 30471 470Ω 5 0 06W 3345 4822 051 30471 470Ω 5 0 06W 3346 4822 051 30479 47Ω 5 0 06W 3400 4822 051 30273 27kΩ 5 0 06W 3401 4822 051 30471 470Ω 5 0 06W 3403 4822 051 30273 27kΩ 5 0 06W 3404 4822 051 30682 6 8kΩ 5 0 06W 3405 4822 051 30472 4 7kΩ 5 0 06W 3406 4822 052 10109 10Ω 5 NFR 3407...

Page 59: ...008 CHIP JUMPER 0805 4265 4822 051 30008 CHIP JUMPER 0603 4272 4822 051 30008 CHIP JUMPER 0603 4273 4822 051 30008 CHIP JUMPER 0603 4274 4822 051 20008 CHIP JUMPER 0805 4276 4822 051 30008 CHIP JUMPER 0603 4277 4822 051 30008 CHIP JUMPER 0603 4279 4822 051 30008 CHIP JUMPER 0603 4301 4822 051 30008 CHIP JUMPER 0603 COILS 5100 4822 526 10494 FERRITE BEAD 5101 2422 536 00612 30µH 5102 2422 549 44944...

Page 60: ...405 3198 010 42320 BC857BW 7407 9340 219 30115 BC817 25W 7408 9340 219 30115 BC817 25W 7409 9340 219 30115 BC817 25W 7410 3198 010 42320 BC857BW 7411 3198 010 44350 BC807 25W 7505 3198 010 42310 BC847BW 7506 3198 010 42320 BC857BW 7509 3198 010 42310 BC847BW INTEGRATED CIRCUITS 7105 9350 694 90118 74LV14D 7118 9350 694 90118 74LV14D 7122 5322 209 11517 PC74HCU04T HEX INVERTER IC 7209 9350 694 9011...

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