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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
25、imately 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-offtrack error Triggered in normal play when
26、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 missing for a certain time during play. PLL
27、 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 a certain time. This happens when the caro
28、usel switch is defective and closed all the time, 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 approxi
29、mately 5 Sec. The drawer could not open or enter the 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 co
30、rd 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 up from 01 to 99) SERVICE TEST PROGRAM Mini 2002 FW-C1xx, C2xx, C3xx Dated: wk141 4-14-1 SET BLOCK DIAGRAM FW-C355 Block Diagram . 34330 dd
31、 wk 145 +LPS LED +Z TAPE 3CDC-L2C CDC CONTROL +CD 250mV -6dB 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 - + JOG 33R AMP_ON AN17380A POWER FOR MATRIX SA IN SELECTOR +C STBY TRANSFORMER MATRIX 2 X 37W 85dBA 3dB HEADPHONE FOR -/21 ONLY D A M
32、 HEADPHONE CHOKE +Z N CDC CONTROL TUNER 28mV MUTE A ATTN. I2C DATA CONTROL 47R 100mV 76dBA 16dB -8.5dB 125mV (NOT USED 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 SMPS +5V6_ECO SWITCH ECO POWER F2 RDS -26 dB - ATTEN. AM (80
33、% MOD) 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 NTC +F FM (67.5 kHz) INCREDIBLE EEPROM F1x D PWDN SIMPLE 500mV POWER -33V SOFTWARE CONTROL A 0.9W/6 ohms +F VOLUME CONTROL ECO6 AMPLIFIER 2.50V +9.1V CDC CONTROL +CD +LPS
34、L CONTROL LEFT/RIGHT LEFT/RIGHT -CMOS POWER +C SWITCH MIC DET IS FILTER +LPS 125mV I2C CLK + +12V_A TDA7468 MUTE -CMOS (-9V) MIC DET -CMOS D +9.1V REGULATOR 7812 I2C 250nWb/m +5V6_ECO MAIN SIGNAL PATH MEASUREMENTS ARE IN AUX MODE : LEVELS AT MAX VOL S/N AT 500mW HEADROOM (1% THD) WRT TO LEVEL AT MAX
35、 VOL NOTE : FOR CLASS G SWITCH AMPLIFIER +Z REG BASS 10M VOL. 2 I2C DATA FTD SURROUND VOL. 1 AM # FOR VCD/MP3 VERSION L/R SPEAKER TUNER SURROUND MAINS 76dBA KEY SCAN +5V6 F2x (NOT USED FOR -/37) I2C CLK +C 3.0dB 14 dB +12V_M D CD_ON 500mV / 1000mV +5V6 VOLTAGE LPS NTC F1 F2 LPC +F 500mV & HP DET +5V
36、6 78dBA 3.2dB -33V CONTROL 650mV CD SUPPLY CONTROL COMBI ETF7 DECODER TMP87CS71F D F1 LPC +CD CONTROL A (+5V) MUTE POWER SUPPLY Rin = 3k +F 250mV ECO/SLEEP A # FEATURE PROVISION FUSE REGULATOR L7805 +CD CD_ON 16dB +12V_A +12V_A +12V_A +12V_A +12V_A # FOR VCD/MP3 VERSION (+5V) (FOR CDC-L2C ONLY) +50V
37、 VCD-3C TAPE CONTROL FUSE FUSE FUSE FUSE MPEG3 D -6dB Track (ONLY FOR -/37) VIDEO OUT A 1.0 Vpp # VCD # VCD # VCD # VCD # PROVISION FOR VCD/MP3 VERSION 5-15-1 SET WIRING DIAGRAM FW-C355 Wiring diagram . 3433 wk145 # 1204 EH TOP MIC +12M CD_SWINFO CD_SHSTR CD_SHCLK SH_DATA DSA_DATA DSA_ACK GND_D CD C
38、HANGER 1 EH TOP 2P TP_RIGHT FFC TOP (1104) COMBI AC_VKK F2 1508 NON-VCD F1 FFC TOP SICL 1700 1800 HP_RIGHT 15P DIPMATE EH TOP 3P # 1802 ETF7 1 SILD 7P VCD CD_LEFT GND_A CD_RIGHT 1501 PIN TYPE TP_LEFT MUTE F2 F1 LOUDSPEAKER DSA_STR GND_D 180mm ECO6 LAYOUT CELL TU_CLK TU_STEREO CD_SHSTR 2P FRONT CD_SH
39、CLK 120mm (BOTTOM SCREW NEAR THE COMBI PCB) TP_LEFT 1706 1 EH SIDE 86 (1101) (1102) CD_GND GND_D TRAFO HP_LEFT AC_H AC_H AC_CT AC_H AC_H NTC 1 +5V_CD 1 GND_A +12V_A MIC_DET CD_SILD ETF7 AMP_ON 220mm # MPEG01 HP_GND NON-ECO CVBS 1501 TRAFO # 1801/1802 AUX IN PORE CD_SICL 1203 SURROUND 1103 DIPMATE +1
40、2M 1307 MATRIX 1 EH TOP EH TOP 7P -33V +5V6 CD_RIGHT -CMOS TP_REC_RIGHT 30P / 32P SA_IN CDC-L2C FFC SIDE 1703 # 1603 GND_A GND_D_CD +12V_A FFC TOP FFC SIDE ETF7 FFC SIDE # VIDEO GND_A CD_LEFT EH TOP 1804 TP_REC_LEFT 1206 DIPMATE $ LPS 1 1 FFC TOP # VCD MIC_VCD MIC_DET GND 1701 1 GND_A +12V_A 1 PWDN
41、NTC +5V6_ECO LPC 1 220mm 10P VCD 1402 +12V_M MAINS SUPPLY (FOR -/30,-/33,-/34 & -/37 ONLY) DSA_STR SW_INFO SHR_STR DSA_DATA MIC_SK GND_M 1 D_GND 1402 TUNER GND_D ETF7 CD_SWINFO GND_D 1507 PORE GND_D CD_PORE 3P $ 1203 CD_SHCLK D_GND SA_IN HP_RIGHT HP_GND HP_LEFT CD_SILD CD_SHDATA 1211 TRAFO CD_PORE E
42、CO EH TOP (FOR -/21 & -/22 ONLY) MAINS SUPPLY PIN TYPE PWDN 1 CD_SILD CD_SHDATA GND_M MIC_SK FFC TOP I2C_CLK I2C_DATA CD_SICL CD_SHSTR SH_DATA # 1505 D_GND 1503 1200 L N (1105) 10P 1210 280mm 1 DSA_ACK SH_DATA CD_SWINFO CD_ON GND_A CD_LEFT1 180mm +12M 180mm 1 5V6_ECO 1 280mm # 88 EH TOP TU_STEREO CD
43、_SHSTR D_GND I2C_CLK I2C_DATA CD_SICL CD_GND AMP_ON MUTE $ 1439 1500 FFC AD # 5P/4P 220mm 140mm EH TOP +12V_A 1805 CD_SWINFO GND_D CD_SHDATA CD_ON MIC_SK GND_A NON-VCD 2P # 1801 1 EH SIDE 1102 FM COAX CDC-L2C CD_RIGHT FFC BD 1701 1 280mm $ 1209 CD_SHCLK STOKO PIN LPC TU_GND TU_ENABLE TU_DATA TU_CLK
44、TU_GND 1500 Tp_Sh_Str FFC BD TU_ENABLE TU_DATA FFC SIDE +5V_CD 1438 1400 AM ANT STOKO PIN 1P # 1204 280mm TPADC2 TP_REC_RIGHT GND_A Tp_Sh_Data AC_VCD # 1207 PWDN NTC 1 $ 87 F2 F1 -33V +5V6 140mm MIC_DET +12V_A MIC_SK FFC TOP TP_RIGHT # VCD MIC_DET +12V_A 1201 1202 L NLPS-MAINSGND_A MIC_VCD FM CLICK
45、1101 (NOT USA)(USA) TPADC1 FFC AD MIC AMP -CMOS 1208 8203 MPEG_GND MIC_VCD MIC_DET # 1602 1 # 1506 MIC_VCD GND_A MIC_DET 1568 HEADPHONE Tp_Sh_Clk +F FFC AD # 1803 220mm # 1803 180mm 3P TO DIPMATE 88 2P # 1213 280mm TO STOKO PIN 1568 1 +5V_CD GND_D # 1322/1323 1211 280mm SH_CLK 1564 STOKO PIN 1P 1106
46、 GND (1103) 8201 TP_REC_LEFT TO STOKO PIN 1568 FROM ETF7 MODULES CHASSIS AC_VCD COMBI (1102) (UL GROUNDING WIRE - ONLY FOR -/37 VER.) SOLDERED FROM 8201 OR 8203 STOKO PIN 1P 1560 180mm HEATSINK WIRE STOKO PIN 1560 1563 1 EH TOP # 48 1 # 1509 MIC_VCD GND_A MIC_DET EH TOP +12V_A EH TOP 1 # 1705 COMBI
47、(1102) # VCD GROUND ISOLATOR 4P # - PROVISION FOR SETS WITH VCD/MP3 FEATURE . $ - PROVISION FOR SETS WITH ECO FEATURE (ONLY FOR -/22 VER.) . NOTE : # - PROVISION FOR SETS WITH MATRIX SURROUND & VCD GROUND ISOLATOR . 6-1 FRONT BOARD TABLE OF CONTENTS FTD Display pin connection . 6-1 Variation Tables
48、. 6-2 Circuit Diagram - Karaoke part. 6-3 Circuit Diagram - Microprocessor part . 6-4 Circuit Diagram - Headphone / Miscellaneous part . 6-5 Component Layout . 6-6 Chip Layout. 6-7 Electrical Parts List . 6-8 FTD DISPLAY PIN CONNECTIONS 6-1 FTD DISPLAY PIN NO. FUNCTION 3 4 2 G 3 5 1 G 3 6 - 3 7 - 3 8 - 3 9 F 2 3 3 3 G 3 1 5 G 3 0 6 G 2 9 7 G 2 8 8 G 3 2 4 G 2 6 10 G 2 5 11 G 2 4 12 G 2 3 - 2 7 9 G 2 2 - 2 1 - 2 0 P 1 1 9 P 2 1 8 P 3 1 7 P 4 1 6 P 5 1 4 P 7 1 3 P 8 1 2 P 9 1 1 P 10 1 5 P 6 1