Philips Magnavox AZ 7266 Service Manual Download Page 7 | Manualshive

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CS 46 164

HANDLING CHIP COMPONENTS

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Summary of Contents for Magnavox AZ 7266

Page 1: ...rol part 4 1 Servo part 4 2 Signal processing part 4 3 Audio part 4 4 Printed circuit board Copperside view 4 5 Componentside view 4 6 Exploded view 5 1 Mechanical partslist 5 1 Electrical partslist 6 1 6 3 CS 46 158 AZ7261 00 01 01Z 11 14 17 4822 725 24981 Published by Consumer Electronics Printed in The Netherlands Copyright reserved Subject to modification Portable compact disc player PLAY PAUS...

Page 2: ... car base X X direction 6G Y Y direction 6G Z Z direction 6G Headphone out load impedance 16Ω except crosstalk Output power 2x10mW 2dB Frequency response max vol 20Hz 20kHz within 8dB S N ratio unw 80dB 83dB typ S N ratio A wght 82dB 85dB typ THD N 1kHz 1mW 0 3 0 05 typ Channel crosstalk 1kHz no load 40dB Channel unbalance 40dB 5dB Volume attenuation 1kHz 70dB CD out not on all versions Output lev...

Page 3: ... 9 Button for stopping CD play deleting various settings switching off the CD player and activating charging OPEN Slide control for opening the lid of the CD player 2 Button for starting and pausing CD play p CD OUT Headphone and remote control socket 3 5mm 4 5 V DC Socket for external power supply Battery compartment for inserting batteries 1 2 CS 46 160 CONNECTIONS AND CONTROLS PROGRAM MODE RESU...

Page 4: ...5 4822 219 10014 4822 219 10016 4822 219 10026 4822 219 10015 local Korean supplier 4822 219 10017 4822 600 10398 4822 600 10447 4822 138 10615 4822 397 10059 4822 397 10058 4822 219 10033 4822 219 10031 4822 263 21096 4822 263 21101 4822 242 10304 4822 242 10319 4822 242 10291 4822 218 10662 4822 218 10712 4822 218 10793 4822 445 10513 4822 445 10514 4822 321 21602 00 X O O O O O X O X 01 X O O O...

Page 5: ...o stesso potenziale che quello della massa delápparecchio tramite un braccialetto a resistenza Assicurarsi che i componenti e anche gli utensili con quali si lavora siano anche a questo potenziale 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 i Le norme di sicu...

Page 6: ...2 Remove bottom screws remember hidden screw in battery compartment 3 Open the CD door 4 Lift the top cabinet 5 Take the printed circuit board drive unit out of the bottom take care of battery springs 6 Position printed circuit board drive unit into top cabinet 7 Supply the unit via external DC socket SERVICE TOOLS Audio signal disc SBC429 4822 397 30184 Playability test disc SBC444 4822 397 30245...

Page 7: ...2 2 CS 46 164 HANDLING CHIP COMPONENTS ...

Page 8: ...occurs or a button is pressed To stop the playback test disconnect the set from the power source 5 SERVO TEST Purpose Check door and inner switch movement of slide servo and acceleration of discmotor To enter the servo test start service test program and press the PLAY button The display shows S xy x indicates state of door switch y indicates state of inner switch x y 1 means switch is open To mov...

Page 9: ...re 160ms have passed by Focus point lost The offtrack values of CD7 don t decrease properly when jumping tracks or CD7 indicates offtrack while radial tracking is switched on No valid subcode information for 250ms The slide did not reach it s inner pos inner switch of CDM12 doesn t close before 4 seconds have passed by The focus point could not be found inbetween 4 seconds Radial error occured 25 ...

Page 10: ... subcode check retry radial check Y N focus search error handler retry focus search Y N auto sequencer error handler retry sequencer display shows no disc start up stopped turntable and disc free N N Y lens movement Y CHECK LIGHTPATH CHECK FOCUS PATH N triangle voltage on focus actuator OK Y N connections to from CD drive OK Y replace CD drive repair connections triangle voltage on pin 42 of 7950 ...

Page 11: ...of 1800 1 2V Y check supply 1 2 2800 3800 N Y replace CD drive N photodiodes OK Y replace CD drive replace CD drive N Y N Y check CD7 7830 check CD7 7800 7520 3975 3905 OK N Y repair repair N check HF preamplifier 7880 supply 3 5 OK pin 64 of 7830 high emitter of 7901 2V Y pin 1 of 7800 high FAULT FINDING GUIDE LIGHTPATH ...

Page 12: ...N Y repair connections turntable and disc free mechanical obstruction Y N check servo driver 7950 check CD7 7830 check CD7 7830 focus OK eye pattern OK Y N Y Y CHECK LIGHTPATH N N Y N check servo driver 7950 replace CD drive PWM output on pin 33 of 7830 PWM output on pin 33 of 7830 servo signals on pin 2 44 of 7950 FAULT FINDING GUIDE TURNTABLE MOTOR PATH ...

Page 13: ...rvo signals on pin 37 of 7950 check servo driver 7950 N Y check CD7 7830 CHECK LIGHTPATH tracking N Y N servo signals on track servo Y N connections to from CD drive OK Y replace CD drive repair connections servo signals on pin 36 of 7950 check servo driver 7950 N Y check CD7 7830 enter service program RADIAL TEST enter service program SERVO TEST check CD7 7830 FAULT FINDING GUIDE RADIAL TRACKING ...

Page 14: ...truction N FUNCTIONAL TEST start over drive servo checks remove obstruction Y set sensitive to temperature N localize temperature sensitive part repair Y still errors during playback N replace set replace CD drive SET REPAIRED FAULT FINDING GUIDE FUNCTIONAL TEST ...

Page 15: ...us TRACK_IN H BRIDGE MOTOR DRIVER 3 H BRIDGE MOTOR DRIVER 1 H BRIDGE MOTOR DRIVER 4 H BRIDGE MOTOR DRIVER 2 DC DC CONVERTER FEED BACK S 1 2 A A CLsaw 1 8 MPC1718 SERVO DRIVER SAWTOOTH OSCILLATOR DM_IN MOTO1 from CD7 A CLsaw A CLsaw A CLsaw A CLsaw CLsaw 3 5 Power switch Reg Ref Track L P F L P F L P F L P F FLEX PCB HEADPHONE RC SOCKET RIGHT VOLUME CONTROL LEFT DC in socket ACCU or BATTERY A SUPPL...

Page 16: ... connects H bridge DC DC converter 2 to LC filter 4 Vin A power supply for servo driver 5 DCout1 DC DC converter 1 LC filter connects H bridge DC DC converter 1 to LC filter 6 Gnd1 2 GND ground for H bridge section 1 and 2 7 Hout1A servo driver focus servo H bridge PWM output 1A 8 Hin1 servo driver power supply for H bridge output section 1 9 Hout1B servo driver focus servo H bridge PWM output 1B ...

Page 17: ...M3 3456 3402 1k 3491D 4k7 3490D 10k 3492D 56k 3414 47k 3415 470k 3413 470k 3425 2k2 3450F 22 3107X 1M 3493D 1M 2k2 3455 1M 3495D 3265 270 3287A 100k 3288A 1M 3289A 1k 100k 3435 10k 3436 3440 22k 7284A BC848 7283A BC848 7282A 2SD1623T 7290F BC848 BC848 7452 BC848 7942D BC848 7451 BC848 7453 ESD ESD RC RC 2255 100n 2102X 33n 2250X 100n 2252 100n 2281A 100n 2280A 3n3 2101 470p 100n 2453 100n 2402 470...

Page 18: ...74HCU04 8 9 2 1 6 5 7950 MPC1718 20 22 11 3 5 31 29 1 8 33 26 2 44 7 9 32 34 27 25 13 14 43 35 6 28 12 17 23 39 21 19 38 42 41 36 37 18 15 40 16 4 30 10 24 DC DC Con saw PWM Oscillator Sawtooth driver driver Pre Pre VG VG Vreg POWER CONTROL Vin Oscillator Clock CL Cosc saw Gnd3 4 DCout4 Hout3B DCout3 Hout3A Hout4A Sync Hin3 Hin4 Hout1B Vout Hin1 Deadtime control DCout1 Hout1A Hout2B Hout4B DCout2 ...

Page 19: ...4R7 3825 8k2 3821 22R 3841 10k 3903 10k 3904 100 3905 4R7 3975 100R 3830 3816 330 220 3815 470 3974 DA DA DA HF HF HF SD DA HF HF SD SD DA SD SD HF SD SD SD DA HF HF HF HF HF HF DA DA DA DA DA DA DA HF HF SD SD SD SD SD SD DD HF HF HF SD SD HF SD CSTCS 8 46 MHz 5800 SCLK DR_REF SLIDE_IN TRACK_IN FOCUS_IN DM_IN SILD RA PORES SDA SCL STATUS INNERSW 1 2 3 5 3 5 3 5 3 5 3 5 1 2 3 5 3 5 3 5 3 5 3 5 3 5...

Page 20: ...498D 82R 3324 330k 3323 100K 3321 22k 3322 33k 3338 3k9 3k9 3337 1k 3844 1k 3845 1k 3846 3358 680 3355 560 680 3357 680 3353 680 3354 560 3356 3316 47k 3315 47k 3331 120k 3332 120k 3363 2k2 3364 2k2 3385 1k 3386 1k 3349 10k 3347 100k 3348 100k 3360J 1k 3359J 1k 1k 3511J 1k 3510J 3302 1k 3301 22k 3303 10R 2u2 5371X 2u2 5370X 2u2 5362X 2u2 5369X 2u2 5368X 2u2 5372X 1370J HSJ1715 Line Out 4 6 5 7 4 T...

Page 21: ...2 3992 B 2 5362X A 3 5368X A 4 5369X A 3 5800 B 3 5921 D 4 5950 D 4 5951 D 5 5952 E 5 5953 E 5 6250 C 1 6251 C 1 6390D A 4 6400 A 5 6401 B 6 6450D B 5 6490D A 3 6951 D 5 6952 D 6 7282A C 2 7283A C 2 7300 B 4 7301 B 4 7320 B 4 7322 B 3 7323 B 3 7324 B 3 7343 A 4 7344 A 5 7345 A 5 7366 A 3 7368 A 3 7400 C 5 7451 B 6 7452 B 6 7453 B 6 7494D B 5 7510J A 4 7511J A 4 7520 B 3 7800 B 2 7820 B 4 7830 C 3 ...

Page 22: ...X C 1 5400 D 5 5920 D 5 6253 C 1 6403 D 5 7251 C 2 7260A C 2 7280 C 2 7281A C 2 7284A C 2 7290F C 2 7365 A 2 7367 A 2 7425 C 5 7920 D 5 7922 D 5 Explanation of itemnumber extentions AZ7261 AZ7262 AZ7266 AZ7267 AZ7268 A AZ7263 A F J AZ7264 A D LINE OUT EXT DC IR EYE 0002 1250 1370J DOOR 2250X 2499J 1430 5370X 1450F DC GND RC5 3251 3255 3281A 7290F 7280 7281A 7284A 6253 7251 7260A 5372X 3287A 3288A ...

Page 23: ...492 11171 SPRING DETECTION 412 4822 492 11067 SPRING BATTERY 413 4822 492 11065 SPRING BATTERY SHORT 414 4822 417 11281 HINGE DOOR BATTERY LACQUERED 416 4822 443 10236 DOOR BATTERY LACQUERED 417 4822 463 11028 SLIDER 418 4822 449 80075 CABINET ASSEMBLY AZ7261 AZ7263 AZ7266 AZ7267 AZ7268 418 4822 449 80076 CABINET ASSEMBLY AZ7262 418 4822 449 80077 CABINET ASSEMBLY AZ7263 418 4822 449 80078 CABINET...

Page 24: ...20 4V 2963 5322 124 23675 4 7µF 20 4V 2979 5322 122 33538 150pF 5 63V CAPACITORS 2980 5322 122 32452 47pF 5 50V 2981 4822 122 33496 100nF 10 63V 2982 5322 122 32452 47pF 5 50V 2983 5322 122 32452 47pF 5 50V 2984 5322 122 32481 15pF 5 50V 2985 4822 122 33175 2 2nF 20 50V 2986 4822 122 33515 82pF 5 50V 2987 4822 122 33515 82pF 5 50V 2988 5322 122 33538 150pF 5 63V 2989 5322 122 31946 27pF 5 63V RESI...

Page 25: ... 1W 3973 4822 051 20103 10kΩ 5 0 1W 3974 4822 051 20471 470Ω 5 0 1W 3975 4822 051 20478 4 7Ω 5 0 1W 3980 4822 117 11449 2 2kΩ 1 0 1W 3981 4822 051 20474 470kΩ 5 0 1W 3982 4822 051 20473 47kΩ 5 0 1W 3983 4822 051 20103 10kΩ 5 0 1W 3984 4822 051 20682 6 8kΩ 5 0 1W 3985 4822 051 20223 22kΩ 5 0 1W 3987 4822 051 20332 3 3kΩ 5 0 1W RESISTORS 3988 4822 051 20332 3 3kΩ 5 0 1W 3989 4822 051 20223 22kΩ 5 0 ...

Page 26: ...N1 7322 4822 209 33165 TDA1308T N1 7400 4822 209 13566 µP TMP47C823F SHARON1 PB1 7425 4822 209 12991 PST9127N 7800 4822 209 33165 TDA1308T N1 7820 4822 209 33165 TDA1308T N1 7830 4822 209 13554 SAA7376GP M1 7880 5322 209 11517 PC74HCU04T 7921 5322 209 11517 PC74HCU04T 7950 4822 209 12994 MPC1718FB 6 3 CS 46 183 ...

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