Philips-AZ-7267-Service-Manual(1) 电路图 维修手册.pdf

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1、SHARON PLATFORM 1 Technical specification .1-1 Connections and controls.1-2 Feature overview.1-2 Accessories .1-3 Safety warnings.1-4 Service hints.2-1 Service tools.2-1 Handling chip components .2-2 Service test program .2-3.2-4 Start-up procedure.2-5 Fault finding guide.2-5.2-9 Blockdiagram.3-1 Pi

2、nning of ICs .3-2 Circuit diagrams Supply/control 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

3、 24981Published by Consumer Electronics Printed in The Netherlands Copyright reserved Subject to modification Portable compact disc player PLAY. PAUSE PLAY. PAUSE CLASS 1? LASER PRODUCT AZ7262/00/05 AZ7263/11 AZ7264/06/11/13 AZ7266/17 AZ7267/00/05/06 AZ7268/00/01/05/10/11/17 TABLE OF CONTENTS RadioF

4、ans.CN 收音机爱 好者资料库 1-1 CS 46 159 TECHNICAL SPECIFICATION General Dimensions (WxHxD): 134x30.5x154mm Weight without batteries: 250g Power supply modes DC-in socket: 4.5-5.5V Battery 2xLR6: 1.8-3.6V Accu-pack AY3361 (NiCd): 1.8-3.6V Battery lifetime Battery 2xLR6: 6hrs typ. Accu-pack AY3361 (NiCd): 3hr

5、s typ. Battery empty detection Battery weak level: 2.0V nom. 200mV Battery empty level: 1.8V nom. 100mV Charge circuit Charge current: 200mA nom. 10% Charge time for 80%: 3.5hrs nom. Max. charge time: 7hrs nom. Temperature protection: 60C 5C Current consumption (DC-in=4.5V) PLAY-mode: 210mA typ. JUM

6、P-mode: 485mA typ. Stand-by (excl. recharge): 150mA typ. Current consumption (Batt. supply=2.25V) PLAY-mode: 270mA typ. JUMP-mode: 460mA typ. Stand-by (excl. recharge): 50A typ. Shock resistance +X/-X direction: 4G +Y/-Y direction: 4G +Z/-Z direction: 3G Shock resistance by use of car base +X/-X dir

7、ection: 6G +Y/-Y direction: 6G +Z/-Z direction: 6G Headphone out (load impedance 16, 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 cr

8、osstalk (1kHz, no load): -40dB Channel unbalance (-40dB): 70dB CD out (not on all versions) Output level (1kHz, 0dB): 900mV 2dB Frequency response: 20Hz-20kHz within 6dB S/N ratio (unw.): 80dB (83dB typ.) S/N ratio (A-wght): 85dB (88dB typ.) THD+N (1kHz, 0dB): 0.2% (0.05% typ.) THD+N (10kHz, -20dB):

9、 0.5% typ. Channel crosstalk (1kHz): -45dB (-50dB typ.) Channel crosstalk (10kHz): -40dB typ. Channel unbalance (1kHz, 0dB): 1dB (0.5dB typ.) Dynamic range (1kHz, -60dB): 90dB typ. Laser Output power: 800 mVpp TB=0.5s 1 during focus search TB=0.1s 6 +3.5 MOTO116.9MHz 8.46MHz DOBM POWER CHG_ON BATT_L

10、EV_SW BATT_LEV T_ACCU ACCU_IN DC_ON PORES MUTE RCD RCO RCI DBB +5 CHARGE? CONTROL BATT. LEVEL? versatile (3-state) 34MOTO2CD7 motor output2 of CD7; versatile (3-state) 35SBSYCD7 subcode block sync (3-state) 36SFSYCD7 subcode frame sync (3-state) 37RCK CD7subcode clock input 38SUBCD7 P to W subcode b

11、its (3-state) 39VSS2GNDsupply (digital) of CD7 40V5CD7 versatile output pin of CD7 41V4CD7 versatile output pin of CD7 42V3CD7 versatile output pin of CD7 (open drain) 43KILLCD7 kill output; programmable (open drain) 44MISCCD7 C2 error flag; output only defined in CD-ROM modes (3-state) 45DATACD7 DA

12、Cserial data output (3-state) 46WCLKCD7 DACword clock output (3-state) 47VDD2P+3.5supply (digital) of CD7 48SCLKCD7 DACserial bit clock output (3-state) 49VSS3GNDsupply (digital) of CD7 50CL4CD7 4.2336MHz P clock output 51SDAP CD7P interface data I/O line (open drain output) 52SCLP CD7P interface cl

13、ock line 53RABP CD7P interface R/W and load control line 54SILDP CD7P interface R/W and load control line 55NCno connection 56VSS4GNDsupply (digital) of CD7 57RESETP CD7power-on reset input (active low) 58STATUSCD7 Pservo interrupt request line/CD7 status register output (open drain) 59VDD3C+3.5supp

14、ly core (digital) 60C2FAILCD7 indication of correction failure (open drain) 61CFLGCD7 correction flag output (open drain) 62V1 CD7versatile input pin 63V2 CD7versatile input pin 64LDONCD7 Laser supplylaser drive on output (open drain) MPC1718 4-STAGE PWM SERVODRIVER PinNameDirectionDescription 1Hin2

15、 servo driverpower supply for H-bridge output section 2 2Hout2Aservo driver disc motorH-bridge PWM output 2A 3DCout2DC/DC converter 2 LC-filterconnects H-bridge DC/DC converter 2 to LC-filter 4Vin+Apower supply for servo driver 5DCout1DC/DC converter 1 LC-filterconnects H-bridge DC/DC converter 1 to

16、 LC-filter 6Gnd1,2GNDground for H-bridge section 1 and 2 7Hout1Aservo driver focus servoH-bridge PWM output 1A 8Hin1 servo driverpower supply for H-bridge output section 1 9Hout1Bservo driver focus servoH-bridge PWM output 1B 10Voutservo driver PWM output of DC/DC converter of VLG power supply 11DTC

17、 servo driverdead time control pin (used to set duty value of Vout output) 12FBoutservo driver feedback for DC/DC converter of VLG power supply 13INM servo driverinverting input for DC/DC converter of VLG power supply 14INP servo drivernon-inverting input for DC/DC converter of VLG power supply 15VB

18、iasservo driver bias stabilizing capacitor connection pin for DC/DC converter 16Vdservo driver +Spower switch output pin of servo driver 17S.GndGNDground for internal logic of servo driver 18Vrefservo driver +1.2band-gap reference voltage output of servo driver 19VG+VG servo drivergate drive power s

19、upply for output transistor, power is supplied by using the Cg pin to form a charge pump. 20Cgservo driver charge pump step-up capacitor connection 21Vregservo driver +1.8regulator output pin 22Coscservo driver sawtooth waveform output, synchronized to the clock 23Sync servo driverexternal clock inp

20、ut for separate excitation 24PowerP servo driverpower control pin (low-active) 25Hout3Bservo driver track servoH-bridge PWM output 3B 26Hin3 servo driverpower supply for H-bridge output section 3 27Hout3Aservo driver track servoH-bridge PWM output 3A 28Gnd3,4GNDground for H-bridge section 3 and 4 29

21、DCout3DC/DC converter 3 LC-filterconnects H-bridge DC/DC converter 3 to LC-filter 30Vin+Apower supply for servo driver 31DCout4DC/DC converter 4 LC-filterconnects H-bridge DC/DC converter 4 to LC-filter 32Hout4Aservo driver slide servoH-bridge PWM output 4A 33Hin4 servo driverpower supply for H-brid

22、ge output section 4 34Hout4Bservo driver slide servoH-bridge PWM output 4B 35Lim2,4+LFinput pin, limits LC-filter output voltages of sections 2 and 4 36Vinp3CD7 servo drivercontrol input pin, receives track servo signals from CD7 H-bridge output is controlled by voltage between this pin and Vc 37Vin

23、p4CD7 servo drivercontrol input pin, receives slide servo signals from CD7 H-bridge output is controlled by voltage between this pin and Vc 38VLG+3.5power supply for motor control circuit 39S.GndGNDground for internal logic of servo driver 40VcDR_REFreference voltage for motor control circuit 41Vinp

24、2CD7 servo drivercontrol input pin, receives disc motor control signals from CD7 H-bridge output is controlled by voltage between this pin and Vc 42Vinp1CD7 servo drivercontrol input pin, receives focus servo signals from CD7 H-bridge output is controlled by voltage between this pin and Vc 43Lim1,3+

25、LF servo driverinput pin, limits LC-filter output voltages of sections 1 and 3 44Hout2Bservo driver disc motorH-bridge PWM output 2B TDA1545A CONTINUOUS CALIBRATION DAC PinNameDirectionDescription 1BCKCD7 DACbit clock input of DAC 2WSCD7 DACword select input of DAC 3DATACD7 DACdata input of DAC 4GND

26、GNDground 5VDD+LFDsupply voltage 6IOLDAC left channel output 7IREFDAC reference voltage output 8IORDAC right channel output 3-23-2 CS 46 173 4-14-1 CS 46 174 Overvoltage protection Charge control IR-receiver (not in all versions) Reset circuit Cord remote control circuit (not in all versions) Batt.

27、level & temperature detection S12S11S10S9S8S7S6S5S4S3S2S1S0C3C2C1C0NET GND +S +3.5 +1.2 +A 12 14 58 TDA1308 FROM/TO AUDIO PART PROGRAM REPEAT SHUFFLE 1 ALLSCAN 14 58 NJM2903 FROM/TO SIGNAL PROCESSING PART SERVODRIVER PART FROM/TO DC/DC & 1716151413111098765432 X16dALL5dCol4d13d2d1dCOM3 - 6c6e5c5e4c4

28、e3c3e2c2e1c1eCOM2 6b6g5b5g4b4g3b3g2b2g1b1gCOM1 6a6f5a5f4a4f3a3f2a2f1a1f REPEATSHUFFLE- - - -COM0 1 SCAN PROGRAM X2 PIN COM0 COM1 COM2 COM3 ACCU_IN ACCU_IN DC_ON DC_ON DC_ON POW_OFF POWER CHG_ON CHG_ON RCI RCI RCD RCD RCO RCO RC AUD_POW KI2 KI2 KI1 KI1 HOLD HOLD DBB T_ACCU T_ACCU S12 PLAY PLAY DOOR D

29、OOR RESUME RESUME KO1 KO1 KO3 KO3 BATT_LEV_SW BATT_LEV_SW BATT_LEV BATT_LEV MUTE SDA SCL RA SILD STATUS PORES S11 S10 S7 S6 S5 S4 S3 S2 S1 S0 C3 C2 C1 C0 S8 S9 KO2 KO2 SUPPLY/CONTROL PART DC IN 7400 I 9 7290F B16 7284A C 6 7283A C11 7282A C 8 7281A C 5 7280 C 6 7280 C 4 7260A B11 7251 A 4 6450D F 6

30、6403 L 3 6401 J 4 6400 J 5 6253 D 2 6251 B 2 6250 B 2 5400 K 9 3499D F 3 3495D G 6 3493D G 4 3492D H 5 3491D F 4 3490D G 4 3460D H 6 3459D G 6 3458 I 5 3457 I 4 3456 I 3 3455 I 3 3453 H 7 3452 I 6 3451 H 6 3450F C15 3449F B15 3440 L13 3436 I 9 3435 I 9 3430 I 5 3425 J 9 3423 K 6 3422 K 5 3418 I 6 34

31、15 K 5 3414 L 3 3413 K 4 3410 I 4 3402 L15 3401 L15 3295 C13 3293A C13 3291 B13 3289A C 5 3288A C 5 3287A D 5 3286A D 8 3285A D 8 3283A B 7 3282A B 6 3281A D 5 3280A C 5 3277X C 7 3276A B 7 3275X B 6 3265 C 2 3264 B 2 3263A C11 3262 G16 3261A C10 3255 D 3 3254 C 3 3253 C 3 3251 C 4 3250A D10 3111A C

32、11 3110 B14 3109 B12 3108 B12 3107X B11 3106 B12 3105 B12 2490D G 4 2454D G 5 2453 I 4 2452 H 3 2451 I 7 2426 J 8 2425 J 9 2402 G 9 2401X H 9 2395X H10 2281A C 7 2280A C 6 2255 B 8 2252 D 3 2251F C15 2250X D 3 2230 D 1 2220A D 8 2102X C14 2101 B12 1450F C16 1430 J 5 1418 K 4 1417 L 4 1415 K 7 1414 L

33、 6 1413 L 7 1412 L 7 1411 K 6 1410 J 3 1400 E12 1250 C 2 7942D G 3 7940D G 5 7800 B14 7494D G 6 7453 I 6 7452 H 7 7451 H 6 7425 J 8 451678910111213141521617181920213 J I H G M F E D C B A L K J I H G M F E D C B A L K 451678910111213141521617181920213 3277X 0R 3276A 22k 3264 270 3110 3M3 3109 150k%

34、3108 68k%470k 3105 3106 47k% 3250A 470k 3261A 10k 3263A 100k 3283A 2k2 3286A 2R2 3285A 2R2 3282A 100k 3281A 22k 3251 330 3280A 100k 3254 18k 3255 22k 3262 100k 3293A 10k NTC 3291 5k6% 3295 2k2% 3111A 22k 3275X 100k 3253 22k 3449F 10k 100k 3418 3401 1k 3499D 10k 3423 47k 47k 3422 470k 3453 3430 470k

35、3410 470k 470k 3452 100k 3451 47k 3460D 1M 3459D 2k2 3457 3M3 3458 3M3 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 2SD1623

36、T 7290F BC848 BC848 7452 BC848 7942D BC848 7451 BC848 7453 ESD ESD RCRC 2255 100n 2102X 33n 2250X 100n 2252 100n 2281A 100n 2280A 3n3 2101 470p 100n 2453 100n 2402 470p 2395X 2490D 1n5 100n 2426 560p 2425 3n3 2454D 100n 2452 100p 2401X 2220A 100n 2230 100n +3.5 +A DC +3.5 +S +3.5 +1.2 +A +5 +3.5 +S

37、+1.2 +3.5 +1.2 +5 +3.5 +3.5+3.5+3.5 +S+S +3.5+3.5 +3.5 +3.5 +3.5 +3.5 +3.5 +3.5+A+3.5 +3.5 7251 2SB1123 7260A BC858 7940D BC858 7494D BC858 7281A BC858 RC AUD_POW SDA SCL RA SILD PORES STATUS MUTE POWER DBB GND_RC 6401BAV706400BAV70 6403BAV70 6450D BAT54C 4 7 5 6 7280 NJM2903 8 7800 TDA1308 6 5 7 8

38、1 3 2 7280 NJM2903 CHARGE BATT- BATT+ RC5_IN RC5_OUTDC_IN DC_OUTSB10-05 6251 BAT54 6250 6253 BZX84-C3V3 2 x LR6 consig 1250 HEC3600 1450F GP1UC10 RC5 receiver 1400? LP-6365-C 1314151617123456789101112 2u2 2451 2251F 22u 7400 TMP47C823F 636414567 18 121314152728293031323334353637383940414219202122232

39、425 17 4353545556575960616244234546474849505152 16 26 58 8 9 10 11 3 VLC VSS VDD LCD driver 3 Interrupt controller EIR Accumulator 0 Interval Timer R5 Timer/Counter 3 23 ALU 0 R8 1 R6 G 3 COM Clock Generator Hold controller S Timing Generator System controller 4 Z FLAG 0 C R7 XIN TEST HOLD RESET XOU

40、T KE 12-bit EIF HR (2ch) 30 R4 Interface LR RAM address buffer 0 TC1 Data Memory STACK (RAM) TC2 2 R9 SPW DC 0 Decoder Program (ROM) Memory IR PC 3 K0 0 0 SEGMENT Timer Watchdog DMB 8-bit Serial data area LCD display 4 DATA TABLE 3 R3 WT0 INT2 7425 PST 9127 1 2 34 5 1430 ESE11SH1 DOOR STOP EVQ PJX 1

41、411 PROGRAM SKHLAC 1415 PREVIOUS EVQ PJX 1412 PLAY HOLD-RESUME-OFF DBB ON-OFF EVQ PJX 1410 MODE SKHLAC 1414 NEXT SKHLAC 1413 5400 CSTC4.0MG 1417 123 1418 1234 Supply voltages Explanation of abbreviations: Explanation of itemnumber extentions: +A?.?Battery or ext. DC +S?.?Switched +A +3.5?.?Stabilize

42、d voltage of DC/DC converter +1.2?.?Reference-voltage (only if power on) +5 ? .?Ext. DC X ? .?Components only forseen (not in use) % ?.?Tolerance of resistor is only 1% D? .?wired remote control A? .? recharge circuit J? .?Line out F? .?IR - sensor AZ7261,AZ7262,AZ7266,AZ7267,AZ7268? .?A AZ7263? .?

43、A+F+J AZ7264? .? A+D This circuit diagram shows a summary of all? possible versions. For components used in? specific versions see table below. 3.1V 2.5V 2.5V 4.7V5.0V 4.7V4.6V 3.8V 0.3V 0.3V 3.1V3.1V 0.8V 0.1V 0.2V 0V 0V 0V 0.8V 1.2V 3.5V 3.5V 3.5V 4.2V 3.5V 3.5V 0V 0V 3.1V 3.5V 3.5V 0.4V 1.2V 3.4V

44、 3.4V 3.4V 3.4V 1.4V 2.3V 2.3V 3.5V 3.5V 3.5V 3.5V 3.5V 3.5V 3.5V 0V 0V 0V 0V 0V 0V 0V 0V 0V 0.4V 3.5V 3.5V3.5V 0.7V 4.6V 4.1V 3.5V 0.6V 0V 0V 0V 3.5V 3.4V 3.2V 0.6V 0.6V 0.6V 0V 0V 0V 0V 0V0V 0V TB 5ms/Div C0.C3 S0.S12 TB 5ms/Div DC voltage measured in? PLAY-mode, DBB=off.? Set supplied via mains adapter EVMV 4-24-2 CS 46 175 +3.