Philips-FWC-280-Service-Manual(1) 电路图 维修手册.pdf

《Philips-FWC-280-Service-Manual(1) 电路图 维修手册.pdf》由会员分享，可在线阅读，更多相关《Philips-FWC-280-Service-Manual(1) 电路图 维修手册.pdf（52页珍藏版）》请在收音机爱好者资料库上搜索。

1、CLASS 1 LASER PRODUCT COMPACT DIGITAL AUDIO Service Manual Service Service Service Service Service FW-C280/22/34 TABLE OF CONTENTS Page Location of pc boards fr Reparaturen sind Original-Ersatzteile zu verwenden. I Le norme di sicurezza esigono che lapparecchio venga rimesso nelle condizioni origina

2、li e che siano utilizzati i pezzi di ricambio identici a quelli specificati. After servicing and before returning set to customer perform a leakage current measurement test from all exposed metal parts to earth ground to assure no shock hazard exist. The leakage current must not exceed 0.5mA. CLASS

3、1 LASER PRODUCT 3122 110 03420 GB Warning ! Invisible laser radiation when open. Avoid direct exposure to beam. SVarning ! Osynlig laserstrlning nr apparaten r ppnad och sprren r urkopplad. Betrakta ej strlen. SFVaroitus ! Avatussa laitteessa ja suojalukituksen ohitettaessa olet alttiina nkymttmlle

4、laseristeilylle. l katso steeseen! DK Advarse ! Usynlig laserstrling ved bning nr sikkerhedsafbrydere er ude af funktion. Undg udsaettelse for strling. 2-1 3 STANDBY-ON TAPE 2TAPE 1 MINI HIFI SYSTEM CD1 2 3BANDTAPE 1 2 TAPECDTUNERAUX PRESETL L TUNING L L L L STOPCLEARSEARCH PLAY PAUSEPREVNEXT DISC C

5、HANGE DISC 3 OPENCLOSE DC 3CHANGER 3 CD ROTARY CHANGER SYSTEM 3 CD ROTARY CHANGER SYSTEM CD REWRITABLE COMPATIBLE CD REWRITABLE COMPATIBLE CD SYNCHRO RECORDING CD SYNCHRO RECORDING D B B CDR/VIDEO DISC 2DISC 1 JOG CONTROL SOUND NAVIGATION - JOG VOLUME PROGRAM DIMRECORD DUBBING A.REPLAY INCREDIBLE SU

6、RROUND V E C D S C T E C H N O R O C K J A Z Z O P T I M A L OPEN L OPEN L DEMO STOP CLOCKTIMERNEWSRDS # ! 1 2 3 4 5 6 7 8 9 0 ? ? ? ? ) ( * “SEARCH RDS TIME” will be displayed. When RDS time is read, “RDS TIME” will be displayed. The current time will be displayed for 2 seconds and stored automatic

7、ally. Note: If RDS station does not transmit RDS time within 90 seconds, the programme will exit automatically and the display will show “NO RDS TIME”. To reinstall the PLUG button flash continously.five seconds to switch off the demonstration. All lighted buttons are not lit.Press DIM until DIM OFF

8、 display mode is shown. Troubleshooting 3-13-1 DISMANTLING INSTRUCTIONS Dismantling of the Cassette Cover 3. Lift up and out 1. Place screw driver (flat side) between the cover & cassette door 2. Twist screw driver Cassette door 1) Take a paper clip or any stiff wire diameter of 1mm -1.5mm and make

9、a marking about 17mm from the tip. 2) Place the set in an upright position and insert the paper clip into the slot on the right side of the Cabinet Rear. 3) With the marking just outside the Cabinet Rear, you should be able to engage the gear on the side of the 3CDC-LC Module. Because of the distanc

10、e between the gear and the Cabinet Rear the chance of the paper clip slipping above or below the gear is high, therefore you have to feel and adjust slightly to engage the gear cor- rectly. 4) Push the gear slowly towards the front as shown until the Tray CDC starts to move out of the Front Cabinet.

11、 The Tray CDC is now disengage and can be pulled out com- pletely Note: If the Cabinet Rear has to be replaced, it has to be replaced by one that has a similar slot on the right side of the Cabinet otherwise there is no possibility to disassemble the same set in the future. Opening the CDC Tray manu

12、ally 17mm Turn the Gear inside towards the Front of the Set repeatedly until the Tray CDC starts to open. Marking just outside the slot on the Cabinet Rear Dismantling of the Cover Control on the Front (see Notes) 1) Insert a strong string into the slot between the Volume knob (pos 146) and Cover Ri

13、ng Volume (pos 144), looped it 1,5 turns securely around the Volume knob and pulled it out as shown. 2) Do likewise for the Jog Rotary knob (pos 145). 3) Remove the 2 hidden screws A to take out the Cover Control assembly (pos 153 + 143 + 144). Note: Only the Lightguide DSC (pos 127) is sandwiched b

14、etween the Front Cabinet (pos 101) & Cover Control (pos 153). Dismantling of the Front Panel 1) With the CDC tray opened remove the Cover Tray CDC (pos 107) as indicated. 2) Loosen the 8 screws to separate the Front Panel from the rear portion. - 2 screws B on the front - 2 screws each on the left &

15、 right side - 2 screws at the bottom 3-23-2 Dismantling of Assemblies on the Front Panel 1) Remove the Volume and Jog Rotary knobs (pos 145 & 146) as per step 1 and 2 of Dismantling of the Cover Control on the Front. 2) Remove 3 screw C to loosen the Headphone board (1x) and the Karaoke board (2x).

16、Note: Karaoke board is for some version only. 2) Remove 12 screws D as indicated to loosen the Front board. 3) Remove 6 screws E to loosen the ETF7 Module. Dismantling of Rear Portion 1) Remove 1 screw H & uncatch C1 to loosen the Mains socket board. 2) Remove 2 screws F, 2 screws G and uncatch C2 t

17、o loosen the Tuner board assembly. 3) Remove 5 screws J (3x on the rear and 2x on the heatsink) to loosen the Combi board (Main part). 4) Remove 2 screws K to loosen the Mains Transformer. Service pos A Service pos B Service pos C 3-33-3 Note: 1. During repair it is possible to disconnect the follow

18、ing assemblies or modules while working on other areas: - Tuner Board - 3CDC Module 2. 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 ma

19、y occurs. Service pos D Various other Tests Activated withACTIONTEST QEEPROM FORMATLoad default data. Display shows NEW for 1 second. Caution! All presets from the customer will be lost! Disconnect mains cord LEAVE SERVICE TESTPROGRAM R 9 to Exit EEPROM TESTA test pattern will be sent to the EEPROM.

20、 PASS is displayed if the uProcessor read back the test pattern correctly, otherwise ERROR will be displayed. Volume Knob or Jog Shuttle knob ENCODER TESTDisplay shows value for 2 seconds. Values increases or decreases in steps of 1 until 0 (Min.) or 40 (Max.) is reached. POWER Button pressed? Y N S

21、et is in Service PLAY Mode. The Service Play Mode is intended to detect and identify the failures in the CD Mode. In this mode the electronics will still function even when an error is detected so that repair activities can be carried out. SERVICE PLAY MODE In case of failures, error codes according

22、 to table 2 will be displayed. O Button pressed? Y Y Y N N N O Button pressed? 9 Button pressed? Display shows 8M Output at (Front Board) pin 80 of uP = 1,953.125Hz Display shows 32K Output at (Front Board) pin 80 of uP = 2048Hz QUARTZ TEST TUNER Button pressed? Disconnect Mains cord ? Y N N Y Servi

23、ce frequencies are copied to the RAM (see Table1) Tuner works normally except: PROGRAM button Service Mode left TUNER TEST Display Tuner Version ccc TUNER Button pressed? N Y PRESET 1 2 3 4 5 6 7 8 9 10 11 Europe EUR 87.5MHz 108MHz 531kHz 1602kHz 558kHz 1494kHz 153kHz 279kHz 198kHz 98MHz 87.5MHz Eas

24、t Eur. 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 108MHz 531/530kHz* 1602/1700kHz* 558/560kHz* 1494/1500kHz* 87.5/98MHz* 87.5MHz 87.5MHz 87.5MHz

25、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 the TUNER and R buttons depressed while switching on the Mains supply, one of the undermentione

26、d 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) version. Y N Y N Y N 2 Button pressed? 2 Button pressed? 9? Button pressed? DISPLAY TEST Display

27、shows Fig. 1 and switch all LEDs on Display shows Fig. 2 and selected LEDs on (see note 1) Figure 1 Figure 2 note 1 : DISC1, DISC3, TUNER, JAZZ, TECHNO and Biplanar (if applicable) Table 2 Error code E1000 E1001 E1002 E1003 E1005 E1006 E1007 E1008 E1020 E1070 E1071 E1079 Error Description Focus Erro

28、r Triggered when the focus could not be found within a certain time when starting up the CD or when the focus is lost for a certain time during play. Radial Error Triggered when the radial servo is off-track for a certain time during play. Sledge In Error The sledge did not reach its inner position

29、(inner-switch is still close) before approximately 6 Sec. have passed by. Inner-switch or sledge motor problem. Sledge Out Error The sledge did not come out of its inner position (inner-switch is still open) before approximately 250 mSec. have passed by. Inner-switch or sledge motor problem. Jump-of

30、ftrack error Triggered in normal play when the jump destination could not be found within a certain time. When this error occurred, software will try to recover by initiating the jump command again. If it is recoverable, the disc will continue to play. Subcode Error Triggered when a new subcode was

31、missing for a certain time during play. PLL Error The Phase Lock Loop could not lock within a certain time. Turntable Motor Error Generated when the CD could not reached 75% of speed during startup within a certain time. Discmotor problem. Focus Search Error The focus point has not been found within

32、 a certain time. The carousel switch is not open within certain time. This can happen when either the switch is defective and closed all the time, or when the carousel is blocked when located exactly at a disc position. The carousel position switch did not close within a certain time. This can happe

33、n when the switch is defective and never closes electrically, or when the carousel is blocked in between two disc positions. The time-out is approximately 5 Sec. The drawer could not enter the inside position and is opening again. This happen when the drawer is blocked and cannot go fully inside or

34、when the drawer switch is defective and does not close. To start service test program hold P & AUX 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 Processor. (Counting

35、up from 01 to 99) SERVICE TEST PROGRAM 3-43-4 4-14-1 SET BLOCK DIAGRAM HEADPH0NE # # # # # BASS ALC VCD VCD VCDVCD For 12W set Only SA BUFFER AMPLIFIER FRONT * * For 25W set Only SUBWOOFER OUT TRAFO AMPLIFIER COMBI HEADPHONE VCD MODULE SOUND PROCESSING POWER SUPPLY SIMPLE KARAOKE FRONT POWER Updated

36、 on10-06-99 5-15-1 SET WIRING DIAGRAM 3CDC-99 HEADPHONE 3CDC 99 ETF7 TRAFO / 4W ECO5 / TUNER95 TRAFO MAINS COMBI # MPEG-ESS HEADPHONE # 3CDC SERVO FOR VCD TU95 ECO-MTF/ FRONT CDC KEY ECO5 # CVBS OUT VCD 3CDC LC ECO-MTF ETF7 MIC M/TOP B3P-VH KARA * LOGIC NOT FOR CDC-LC HUM AND EMC SHIELD FOR TAPE DEC

37、K 6-1 FRONT BOARD TABLE OF CONTENTS FTD Display pin connection . 6-1 Variation Table . 6-2 Circuit diagram. 6-3 Component Layout . 6-4 Chip layout. 6-5 Electrical parts list. 6-6 1G 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 7G a h j , p k b f m g c e r n d - - 9G S1 S2 - - -

38、 - 8G a h j , p k b f m g c e r n d - - 10G B1 B2 B3 B4 B5 B6 B7 B8 B9 B10 B11 B12 B13 B14 12G S3 S4 - - 11G B1 B2 B3 B4 B5 B6 B7 B8 B9 B10 B11 B12 B13 B14 6G a h j , p k b f m g c e r n d Col Dp 5G 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 - - 2G a h j , p k b f m g c e r n

39、 d - - P1 P2 P3 P4 P5 P6 P7 P8 P9 P10 P11 P12 P13 P14 P15 P16 B14 B12 B7 B6 B5 B3 B13 B11 B7 B6 B3 B2 B9 B8 B4 B1 B10 B9 B8 B4 B2 B1 B14 B12 B7 B6 B5 B3 B9 B8 B4 B1 B10 B9 B8 B4 B2 B1 B13 B11 B7 B6 B3 B2 11G 10G Col Dp a n g m kj h e f c b rj d 1G - 8G S3 S4 S1 S2 12G 9G 11G10G 12G2G1G4G3G9G8G7G6G5G

40、 FTD DISPLAY PIN CONNECTIONS 6-1 6-26-2 Front Board application A53920FW-C200/21/21M, FW-C220/21K A53930FW-C220/22/34 A53940FW-C200/33 A53950FW-C100/21/21M/22/30/33/34/37, FW-C105/21 A53970FW-C250/37 A53980FW-C250/21 A53990FW-C280/22/34 A54000FW-C290/21 A54340FW-C200/30 A54450FW-C150/37 FEATURES:A53

41、920A53930A53940A53950A53970A53980A53990A54000A54340A54450 RDS-x-x- Rotary Encoderxxx-xxxxx- Jog Encoder-xxxx- Spectrum Analyzer-xx- Biplaner LED-xx- Small FTDxxxxxx-xx Large FTD-xx- NTC-x-x- LED Controlxxx-xxxxx- ITEM NO.A53920A53930A53940A53950A53970A53980A53990A54000A54340A54450 DM21-xxx-x DM23- D

42、M26x-xxxx-xxx DM27-x-x- DM29-x-x- 1402-xx- 1403xxxxxx-xx 1404xxxxxxxxxx 1405xxx-xxx- 1418-xx- 1419-xx- 1420-xx- 1421xxx-xxx- 1423xxx-xxx- 1425-x-x- 1426xxx-xxx- 1427-x-x- 1428-x-x 1429-x-x 1430 xxxx-xx 2417220F220F220F-220F220F220F220F220F- 242122F22F22F2,2F22F22F22F22F22F2,2F 2432-100pF-100pF- 2433

43、-47pF-47pF- 2462220nF220nF220nF-220nF220nF220nF220nF220nF- 3407-1k1k- 3417820R820R820R-820R820R820R820R820R- 3419820R820R820R-820R820R820R820R820R- 3433820R820R820R-820R820R820R820R820R- Variations table for Front Board ITEM NO.A53920A53930A53940A53950A53970A53980A53990A54000A54340A54450 3448820R820

44、R820R-820R820R820R820R820R- 3449820R820R820R-820R820R820R820R820R- 3451820R820R820R-820R820R820R820R820R- 3452820R820R820R-820R820R820R820R820R- 3457820R820R820R-820R820R820R820R820R- 3458-1k1k- 3460-1k1k- 34651k1k1k-1k1k1k1k1k- 34714R74R74R74R74R74R71R4R74R74R7 3475820R820R820R-820R820R820R820R820R

45、- 34791k1k1k-1k1k1k1k1k- 34834R74R74R74R74R74R71R4R74R74R7 3516-330R-330R 3518-330R330R- 35241k1k1k-1k1k1k- 353910k-10k10k10k10k-10k10k10k 3541-1k-1k- 354610k-10k10k10k10k-10k10k10k 355510k10k10k10k10k10k-10k10k 357510k10k10k10k10k10k-10k10k 357610k10k10k10k10k10k-10k10k 3577-12k12k- 3578-5k65k6- 35

46、86-1k1k- 3588-10k-10k 36005k65k65k65k65k65k6-5k65k6 3602-10k10k10k-10k 360310k10k10k6k810k10k10k10k10k10k 361312k12k12k47k12k12k12k12k12k12k 3614-820R820R- 3615-820R820R- 3616-1k-1k- 361710k10k10k10k10k-10k-10k10k 4400 xxxx-xx 4407xxx-xx-x- 4410 xxxxx-x-xx 4412-xx- 4413-x-x 4417xxx-x- 4436xxx-x- 458

47、8-x-x 6401-xxxx- 6402-xx- 6404-xxxx- 6405-xx- 6420-xx- 6422-x-x 6423x-x-x-x- 6424-xx- 6428xxx-xxxxx- 6433-xx- 6445xxx-x- 6446xxx-x- 6447xxx-xx-x- 9475xxxxxx-xx 9488-xxxx- 9520-xxxx- 9523xxxxxx-xx x = Item in use. CIRCUIT DIAGRAM 6-36-3 BIT QUALITY DIVIDER AND OSCILLATOR FILTER RECONSTRUCTION (8th ORDER) BANDPASS ANTI- ALIASING FILTER CLOCKED COMPARATOR REFERENCE VOLTAGE CLOCK REGENERATION AND SYNC COSTAS LOOP VARIABLE AND FIXED DIVIDER 57 Khz GENERATOR DIFFERENTIAL DECODER BIPHA