Philips-FWC-255-Service-Manual(1) 电路图 维修手册.pdf

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1、CLASS 1 LASER PRODUCT COMPACT DIGITAL AUDIO Service Manual Service ServiceService ServiceService FW-C255/21/30/37 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 origin

2、ali 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. 2-12-1 DISMANTLING INSTRUCTIONS 1) Loosen the 4 screws, slide Cover top (pos 253) towards the rear and remove it upwards. 2) Loosen 3 screws slide

5、the Panel right (pos 252) towards the rear and remove it outwards. Do likewise for the Panel left (pos 251). 3) Push the gear slowly towards the front as shown in figure 2 until the CDC tray starts to move out of the Front Cabinet (pos 101). The CDC tray is now disengage and can be pulled out comple

6、tely. Dismantling the 3CDC Module 4) Remove the Cover Tray (pos 105) as shown in figure 2. 5) Loosen 4 screws A to remove the CDC Module (pos 1104) as shown in figure 2. A A A Turn the Gear towards the Front till the CDC Tray starts to open Figure 2 Figure 1 Dismantling of the Volume & Jog Rotary kn

7、obs 1) Cut a piece of packaging tape approximately 5cm width by 12cm length and tape its narrow side on to the top and bottom side of the Volume knob (pos 132) as shown in figure 3. Dismantling of the Front Panel assembly 1) Loosen 2 screws below the Front Panel (pos 101) mounting it to the Bottom p

8、late (pos 227). 2) Release the 2 catches on the sides of the Front Panel to separate it from the Bottom plate. 3) Remove the Volume and Jog Rotary knob if the Front board needs to be dismantled. For Karaoke versions, the Karaoke knob (pos 133) also need to be removed. 4) Loosen 8 screws B to remove

9、the Front board as shown in Figure 5. 5) Loosen 6 screws C and eject both cassette doors to remove the Tape mechanism (pos 1103) as shown in figure 6. Note: The Cassette door can be removed only after the removal of the Tape mechanism and buttons. 2) Place a small screw driver in between the tape &

10、knob (see figure 3) to give more leverage in pulling out the knob as shown in figure 4. 3) Do likewise for the Jog Rotary knob (pos 131). You may have to rotate the knob to provide the most exposed area during application of the packaging tape. Figure 4 Figure 3 Figure 6 Figure 5 2-22-2 Service pos

11、A Service pos B Note: After re-assembly, it is very important to ensure all wires are routed properly to ensure that they do not touch/obstruct all moving parts. The 3CDC Module can be complete detached while repair the other portion of the set. Dismantling of the Bottom & Rear Panel assembly 1) Loo

12、sen 5 screws D mounting the Combi board to the Rear Panel (pos 254) as shown in figure 9. 2) Loosen 3 screws E and release the 2 catches on the sides of the Rear Panel to separate it from the Bottom plate (pos 227). 3) Loosen 4 screws G to remove the Mains Transformer. 5) Loosen 2 screws F to remove

13、 the Combi Board. Dismantling of the Cassette door Lenses 1) Loosen the Lens Cassette Strip Left Top (pos 163) by pushing it towards the inside as indicated in Figure 7 and remove it by using a minus screw driver force it out as indicated in Figure 8. 2) Remove the Lens Cassette Left (pos 161) by pu

14、shing it towards the inside as indicated in Figure 7. Be careful not to damage or break the catch A. 3) Do likewise for the right Cassette Door Lens (pos 160 and 162). Use a minus screw driver to push the Lens in the direction shown Catch A Push in this direction Push in this direction Figure 7 Figu

15、re 8 Figure 10 Figure 9 3-13-1 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

16、EEPROM. PASS is displayed if the uProcessor read back the test pattern correctly, otherwise FAIL will be displayed. Volume Knob or Jog Shuttle knob ROTARY ENCODER TEST Display shows value for 2 seconds. Values increases or decreases in steps of 1 until 0 (Min.) or 40 (Max.) is reached. DBBDEMODEMO w

17、ill toggle on or off. The message: DEMO ON or DEMO OFF will scroll across the display to show the new status of the set. STANDBY-ON Button pressed? Y N Set 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

18、 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 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

19、 uP = 1,953.125Hz Display shows 32K Output at (Front Board) pin 80 of uP = 2048Hz QUARTZ TEST Note: During the 3CDC tray may jerks open & close or the carousel may rotates slightly. This is due to sharing of control lines during the Service test program. TUNER Button pressed? Disconnect Mains cord ?

20、 Y N N Y Service 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 87.5MHz 87.5MHz 87.5MHz

21、87.5MHz 98MHz East 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 530/531kHz* 1700/1602kHz* 560/558kHz* 1500/1494kHz* 98/87.5MHz* 87.5MHz

22、 87.5MHz 87.5MHz 87.5/98MHz* 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

23、the undermentioned 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 DIM Button pressed? DIM Button pressed? 9 Button pressed? D

24、ISPLAY TEST Display shows Fig. 2 and selected LEDs on (see note 2) Display shows Fig. 1 and selected LEDs on (see note 1) Figure 1 Figure 2 note 2 :OPTIMAL is on while JAZZ & TECHNO are off, other LEDs status are not important (applicable only for sets with LEDs) note 1 :JAZZ & TECHNO are on while O

25、PTIMAL is off, other LEDs status are not important (applicable only for sets with LEDs) Table 2 Error code E1000 E1001 E1002 E1003 E1005 E1006 E1007 E1008 E1020 E1070 E1071 E1079 Error Description Focus Error Triggered when the focus could not be found within a certain time when starting up the CD o

26、r 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 (inner-switch is still close) before approximately 6 Sec. have passed by. Inner-switch or sle

27、dge 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-offtrack error Triggered in normal play when the jump destination could not be found within a c

28、ertain 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 missing for a certain time during play. PLL Error The Phase Lock Loop could not lock within a

29、 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 a certain time. This happens when the carousel switch is defective and closed all the time,

30、or when the carousel is blocked when it is located exactly at a disc position. This happens when the carousel switch is defective and does not closed electrically, or when the carousel is blocked in between two disc positions. The time-out is approximately 5 Sec. The drawer could not open or enter t

31、he inside position and is opening again. This happen when the drawer is blocked and cannot go fully inside or when the drawer switch is defective and does not close. To start service test program hold P & TAPE depressed while plugging in the mains cord Display shows the ROM version * S-Vyy (Main men

32、u) S refers to Service Mode. V refers to Version. yy refers to Software version number of Processor. (Counting up from 01 to 99) SERVICE TEST PROGRAM Mini 2002 FW-C1xx, C2xx, C3xx Dated: wk141 4-14-1 SET BLOCK DIAGRAM FW-C255 Block diagram .34280 dd wk148 VOL. 1 D +12V_A +12V_A +12V_A AMP_ON A MUTE

33、POWER SUPPLY Rin = 3k +F 250mV ECO/SLEEP A # FEATURE PROVISION FUSE REGULATOR L7805 +CD CD_ON VDC-3C AM # FOR VCD/MP3 VERSION L/R SPEAKER TUNER SURROUND MAINS 76dBA 16dB I2C CLK 33R CONTROL (ETF7 ONLY) KEY SCAN +5V6 -CMOS (-9V) MIC DET I2C CLK +12V_A +9.1V REGULATOR 7812 I2C 250nWb/m +5V6_ECO MAIN S

34、IGNAL PATH MEASUREMENTS ARE IN AUX MODE : LEVELS AT MAX VOL S/N AT 500mW HEADROOM (1% THD) WRT TO LEVEL AT MAX VOL NOTE : FOR CLASS G SWITCH AMPLIFIER +Z REG BASS 10M VOL. 2 I2C DATA FTD SURROUND TDA7468 MUTE D COMBI +50V TUNER 25mV MUTE +12V_A A SOFTWARE CONTROL -33V 0.9W/6 ohms +C 3.0dB 14 dB D +1

35、2V_M+12V_A 500mV / 1000mV +5V6 VOLTAGE LPS NTC F1 F2 LPC +F 500mV & HP DET +5V6 F2 -26 dB CD_ON PWDN # FOR VCD/MP3 VERSION (FOR CDC-L2C ONLY) (+5V) 47R AN17830A POWER FOR MATRIX SA IN SELECTOR +C STBY TRANSFORMER MATRIX 2 X 37W 85dBA 3dB HEADPHONE FOR -/21 ONLY D A M HEADPHONE CHOKE +Z N CDC CONTROL

36、 A ATTN. SIMPLE 500mV + - + JOG -CMOS FUSE FUSE FUSE FUSE MPEG3 D -6dB Track +LPS VIDEO OUT A 1.0 Vpp # VCD # VCD # VCD # VCD # PROVISION FOR VCD/MP3 VERSION 78dBA 3.2dB -33V CONTROL 650mV CD SUPPLY CONTROL LPC +CD DECODER (ONLY FOR -/37) AM (80% MOD) LED +Z TAPE 3CDC-L2C CDC CONTROL +CD 250mV -6dB

37、Track +12V_M DM CD_ON AMP_ON A SA BUFFER A +12M +12A 3.5mV XX mV YY dBA ZZ dB 2 X 6 OHMS 500mV NJM4556AM ECO-MTF TAPE - ATTEN. AMP_ON HP_MUTE 1.90V 67dBA 1K 500mV HP_OUT F1x TREBLE HP DET CONTROL INTERFACE +12V_M uP D 4 X DSC LEDS +5V6 SIMPLE KARAOKE +5V6_ECO NTC +F FM (67.5 kHz) INCREDIBLE EEPROM F

38、1x TMP87CS71F D RDS SMPS +5V6_ECO F2x (NOT USED FOR -/37) (+5V) +F VOLUME CONTROL ECO6 AMPLIFIER 2.50V +9.1V CDC CONTROL +CD +LPS L F1 LEFT/RIGHT LEFT/RIGHT -CMOS POWER +C SWITCH MIC DET IS FILTER +LPS 125mV POWER SWITCH ECO POWER CONTROL I2C DATA CONTROL CONTROL 100mV 76dBA 16dB -8.5dB 120mV (NOT U

39、SED IN -/21 & -/37) +C REG F2x 1K HP_OUT FRONT PWDN # SOURCE SELECTOR ATTN. +9V -33V IR EYE +5V6 -33V AUX / CDR +12V_A TRAFO 5-15-1 SET WIRING DIAGRAM FW-C255 Wiring diagram . 34280 dd wk148 1106 120mm (BOTTOM SCREW NEAR THE COMBI PCB) 1 EH SIDE 1721 SICL EH SIDE NON-VCD 280mm # 88 EH TOP 1 EH SIDE

40、MPEG_GND MIC_VCD 1 EH TOP # 48 MIC_VCD GND_A MIC_DET +12V_A # 1506# 1509 1601 1563 1P 1601 180mm 1564 COMBI 1P 8203 GND_A LPC 5V6_ECO CD_LEFT ECO6 LAYOUT CELL EH TOP FROM ECO-MTF MODULES CHASSIS STOKO PIN (1102) # VCD GROUND ISOLATOR # 1705 1 EH TOP LPS-MAINS 1 $ 87 1 1507 # 1803 180mm 3P 1560 1P 15

41、60 180mm HEATSINK WIRE STOKO PIN 1 SH_CLK 1 AC_VCD # 1207 AC_VCD COMBI CD_LEFT1 COMBI AC_VKK F2 1508 3P $ 1203 PB INFO FFC AD FFC TOP MIC_DET 1 8201 MIC_VCD GND_A MIC_DET SOLDERED FROM 8201 or 8203 TO STOKO PIN 1568 1208 +5V_CD GND_D +12M CD_SWINFO 280mm 1568 STOKO PIN 2P -33V 2P 1202 L N TU_CLK PIN

42、 TYPE # 1602 +5V_CD PORE GND_D CD_PORE CD_GND GND_D FFC SIDE # VIDEO TO STOKO PIN 1568 TP_REC_LEFT 1203 SURROUND 1103 DIPMATE 86 (1101) (1102) (1102) 1201 ECO-MTF 2 SILD F1 NTC 1 # 1603 AMP_ON FFC TOP D_GND 1401 TUNER 1211 (UL GROUNDING WIRE - ONLY FOR -/37 VER.) GND_A CD_RIGHT 1210 L N (1105) CD_SH

43、STR CD_SHCLK SH_DATA 1P GND_A DSA_STR GND_D # 1322/1323 TU_DATA TU_CLK TU_STEREO CD_SHSTR CD_SILD CD_SHDATA 1805 CD_SWINFO 1 CD_RIGHT MIC_DET TP_REC_RIGHT 30P / $ 32P GND_D 1501 PIN TYPE TU_STEREO GND (1103) (1104) 1 EH TOP GND_M 1 -33V +5V6 CD_SILD ECO-MTF +12V_A MIC_SK GND_A MIC_VCD 1710 1 HP_GND

44、NON-ECO 6P VCD CD_LEFT 220mm 10P ECO $ 1439 1500 FFC AD 10P 1210 280mm DSA_DATA DSA_ACK GND_D CD_SWINFO CD_ON TU_GND TU_ENABLE CD_SHSTR SH_DATA PWDN 1 PORE CD_SICL VCD FFC TOP I2C_CLK I2C_DATA PWDN NTC +5V6_ECO LPC 1 SH_DATA MIC_SK AM ANT 1400 1438 CD_SHSTR D_GND I2C_CLK +12V_M SW_INFO SHR_STR AMP_O

45、N MUTE F2 F1 340mm +12M 140mm MIC_DET ECO-MTF CD_SHCLK #VCD MIC_DET +12V_A MIC_SK GND_A NON-VCD 2P # 1801 CD_GND CD_PORE LOUDSPEAKER 1307 MATRIX 180mm 340mm 220mm EH TOP 1 $ 1209 CD_SHCLK GND_D CD_SHDATA CD_ON CD_SICL TP_LEFT 1706 # 1505 D_GND CD CHANGER 1 EH TOP 2P +12V_M MAINS SUPPLY (FOR -/30,-/3

46、3,-/34 & -/37 ONLY) DSA_STR DSA_ACK DSA_DATA FFC AD +5V_CD TP_REC_LEFT 1206 1211 TRAFO 1800 TU_GND I2C_DATA PWDN NTC HEADPHONE TU_ENABLE TU_DATA FFC SIDE MIC_SK GND_A 180mm 1 CVBS 1502 TRAFO # 1801/1802 D_GND SA_IN HP_RIGHT HP_GND HP_LEFT CD_SILD CD_SHDATA CD_SICL F1 GND_D GND_A CD_GND +12V_A $ LPS

47、1 EH TOP +12V_A FFC TOP TP_RIGHT FRONT CD_SHCLK SA_IN CDC-L2C AC_H AC_H +12V_A 1 1700 1 GND_A +12V_A # 1204 280mm REC INFO TP_REC_RIGHT GND_A 15P HP_RIGHT EH TOP 1804 TRAFO HP_LEFT FM CLICK 1101 (NOT USA)(USA) DIPMATE 1500 # 5P/4P MIC_VCD MIC_DET +5V6 GND_M DIPMATE EH TOP 3P/4P # 1802 220mm # MPEG01

48、 # 1204 EH TOP AUX IN MIC TP_LEFT MUTE F2 ECO-MTF CD_SWINFO 1503 (FOR -/21 & -/22 ONLY) MAINS SUPPLY # VCD AC_H AC_H AC_CT TO DIPMATE 88 2P #1213 280mm 1102 FM COAX CDC-L2C CD_RIGHT FFC BD 1701 1 280mm 1401 MIC AMP FFC TOP FFC SIDE TP_RIGHT EH SIDE # - PROVISION FOR SETS WITH MATRIX SURROUND. NOTE :

49、 # - PROVISION FOR SETS WITH VCD/MP3 FEATURE . $ - PROVISION FOR SETS WITH ECO FEATURE (ONLY FOR -/22 VER.) . 6-1 FRONT BOARD TABLE OF CONTENTS Variation Table and FTD Display pin connection . 6-1 Chip Layout. 6-2 Component Layout . 6-3 Circuit Diagram - Karaoke part. 6-4 Circuit Diagram - Microprocessor part . 6-5 Circuit Diagram - Headphone / Miscellane