Philips-FWC-355-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-C355/21/22/34 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 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 255) towards the rear and remove it upwards. 2) Loosen 3 screws slide
5、the Panel right (pos 254) towards the rear and remove it outwards. Do likewise for the Panel left (pos 253). 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 106) as shown in figure 1. 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 139) 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 265). 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 138). You may have to rotate the knob to provide the most exposed area during application of the packaging tape. Figure 4 Figure 3 Figure 5 Figure 6 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 repairing the other portion of the set. Figure 8 Figure 7 Dismantling of the Bottom & Rear
12、Panel assembly 1) Loosen 5 screws D mounting the Combi board to the Rear Panel (pos 256) as shown in figure 7. 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 265). 3) Loosen 4 screws G to remove the Mains Transformer as shown i
13、n figure 8. 4) Loosen 2 screws F to remove the Combi Board. Service pos C 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 E
14、xit EEPROM TESTA test pattern will be sent to the 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 unt
15、il 0 (Min.) or 40 (Max.) is reached. DBBDEMODEMO will 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
16、 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 to table 2 will be displayed. O Button pressed? Y Y Y N N N O Button pressed? 9 Button pressed?
17、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 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 prog
18、ram. TUNER Button pressed? Disconnect Mains cord ? 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 531k
19、Hz 1602kHz 558kHz 1494kHz 87.5MHz 87.5MHz 87.5MHz 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* 1700/1602
20、kHz* 560/558kHz* 1500/1494kHz* 98/87.5MHz* 87.5MHz 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 depr
21、essed while switching on the Mains supply, one of 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 Butto
22、n pressed? DIM Button pressed? 9 Button pressed? DISPLAY 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 se
23、ts with LEDs) note 1 :JAZZ & TECHNO are on while OPTIMAL 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 fou
24、nd 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 (inner-switch is still close) before approx
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