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3CD CHANGER
HI-FI SYSTEM

SERVICE MANUAL

MODEL : FFH-286A/AD, FE-286E

SERVICE

MANUAL

MODEL:

FFH-286A/AD,

FE-286E

Содержание FE-286E

Страница 1: ...3CD CHANGER HI FI SYSTEM SERVICE MANUAL MODEL FFH 286A AD FE 286E SERVICE MANUAL MODEL FFH 286A AD FE 286E ...

Страница 2: ...BLOCK DIAGRAM 2 17 SCHEMATIC DIAGRAMS 2 19 WIRING DIAGRAM 2 27 PRINTED CIRCUIT DIARGAMS 2 29 INTERNAL BLOCK DIAGRAM OF IC s 2 38 REPAIRS REGARDING CD MECHANISM 2 45 SECTION 3 EXPLODED VIEWS CABINET AND MAIN FRAME SECTION 3 1 TAPE DECK MECHANISM AUTO STOP DECK OPTIONAL 3 3 TAPE DECK MECHANISM AUTO REVERSE DECK 3 5 CD MECHANISM 3 7 SECTION 4 SPEAKER 4 1 SECTION 5 REPLACEMENT PARTS LIST 5 1 ...

Страница 3: ...be touched 4 Laser beams may damage the eyes Absolutely never permit laser beams to enter the eyes Also NEVER switch ON the power to the laser output part lens etc of the pick up if it is damaged 5 Cleaning the lens surface If there is dust on the lens surface the dust should be cleaned away by using an air bush such as used for camera lens The lens is held by a delicate spring When cleaning the l...

Страница 4: ... bag do not place the pick up on the bag This is because there is the possibility of damage by static electricity 4 To prevent AC leakage the metal part of the soldering iron should be grounded 5 Workers should be grounded by an armband 1MΩ 6 Care should be taken not to permit the laser pick up to come in contact with clothing in order to prevent static electricity changes in the clothing to escap...

Страница 5: ...es sufficient to damage ESD devices 5 Do not use freon propelled chemicals These can generate electrical charges sufficient to damage ESD devices 6 Do not remove a replacement ESD device from its protective package until immediately before you are ready to install it Most replacement ESD devices are packaged with leads electrically shorted together by conductive foam aluminum foil or comparable co...

Страница 6: ...450kHz Signal to noise ratio 35 dB Frequency Response 100 2000 Hz AMP Output Power 5W 5W T H D 0 3 Frequency Response 42 20000Hz Signal to noise ratio 80dB TAPE Tape Speed 4 75cm sec Wow Flutter 0 25 MTT 111 JIS WTD F F REW Time 120sec C 60 Frequency Response 250 8000Hz Signal to noise ratio 43dB Channel Separation 50dB P B 45dB R P Erase Ratio 55dB MTT 5511 Speaker MODEL FE 286E Type 1 Way 1 Spea...

Страница 7: ... 1 6 MEMO ...

Страница 8: ... to band being aligned 3 Turn volume control to minimum unless otherwise noted 4 Connect low side of signal source and output indicator to chassis ground unless otherwise specified 5 Keep the signal input as low as possible to avoid AGC and AC action Deck Mode Test Tape Test Point Adjustment Adjust for A Deck Playback MTT 114 Speaker Out DECK Screw Maximum Azimuth Screw B Deck Playback MTT 114 Spe...

Страница 9: ...ust for Rec Pause MTT 5511 ERASE HEAD L203 60kHz 5kHz Auto stop WIRE PN202 85kHz 5kHz Auto Reverse Figure 3 Record Bias Adjustment Connection Diagram 4 TUNER ADJUSTMENT Figure 4 Tuner S curve Adjustment Connection Diagram Unit Signal Generator GND Electronic OSCILLOSCOPE FM Antenna Terminal Speaker Item Test Point Adjustment Adjust for DC Voltage Checker IC Pin 26 28 L106 0V 50mV FM ...

Страница 10: ...udio Check power supply circuit PN807 PIN5 6 2V PN807 PIN7 5V IC803 PIN 2 3 3V Check the connector PN801 PN802 PN809 Check the tracking servo circuit Check the PN807 PIN1 3 OK YES YES YES YES YES YES NO NO NO Check the DISK turns Check the Laser Check the focus circuit Check the TRAKING circuit NO NO ...

Страница 11: ...ngeofSLDO Voltage IC801pin23 CheckthechangeofSL SL Voltage IC802pin18 19 ChecktheVoltagechangeofPN809 PIN20 OPEN CLOSE Defectiveconnector PN809 Defectiveconnector PN809 Defective MICOM Defectiveconnector PN809 Defective IC801 DefectiveIC801 DefectiveIC802 DefectivecontactPN802 DefectivePICK UP Doeslaserlight focuscoildrivewareform TRACKINGERRORwareform Isrotationnormal DefectiveIC801 DefectivePICK...

Страница 12: ... 802 pin 17 18 Defective MICOM Defective MICOM Defective connector Defective IC 801 802 Defective slide motor and or connector Defective LMT SW and or connector Defective Q 801 and or laser Defective laser and or connector Did pickup return to innermost circular Does it stop at inner pick circular after shift Is defect output from LM SW applied to pin 2 of PN802 R808 1 0V R808 1 0V YES YES YES YES...

Страница 13: ...down Check the signal of FOCUS SEARCH IC801 Pin 21 Chekc the signal of PN802 pin 13 14 Does FE signal appear IC801 pin 13 Does DRF signal appear IC 801 pin67 DefectiveIC801 DefectiveIC802 Openactivatorand orconnector DefectiveIC801 Degraded laser diode Defective PICK UP ...

Страница 14: ...ision 1mS Div 1V Div During forward track traverse 3 When time division is 0 5nS div During backward Track Traverse 5 Feed motor drive waveform IC 802 pin18 During normal play CH1 FOCUS COIL DRIVE SIGNAL 2V Div CH2 DRF CH1 TRACKING COIL DRIVE SIGNAL 2V Div IC802 pin27 CH2 TRACKING ERROR TE IC801 pin15 1V Div CH2 TRACKING COIL DRIVE IC802 pin27 SIGNAL 2V Div CH2 TRACKING ERROR TE IC801 pin15 1V Div...

Страница 15: ... the PATTERN Replace the Q715 Refer to power circuit END Check the 33V LOW of C704 Replace the ZD704 33V Replace the D714 D718 D715 YES YES NO NO P SENS PART Does 5V appear at ZD701 Check the pattern of IC301 Pin Check the waveform of D713 Cathod Check the 5 6K of R714 and replace ZD703 5 1V Replace the D713 YES YES NO NO 14 28 51 ...

Страница 16: ... IC782 Replace the D745 D746 D747 D748 Check the D741 D742 D744 D734 or Replace Check the IC703 IC782 IC783 or Replace Check the Q713 B HIGH Q711 B LOW Check the High of Q713 B or Replace Check the IC301 or Replace Replace the Q713 Q711 Check the power Ass y or Replace the Transformer Check the power Ass y or Replace the Transformer Check the 5V of IC301 PIN 17 46 72 90 Check the High of IC301 Pin...

Страница 17: ...k the High of IC702 Pin 5 Check the Voltage of IC702 Pin 7 Check the power circuit Check the input of IC702 Pin 2 4 L CH R CH Check the Output of IC702 Pin 12 8 L CH R CH END YES YES YES NO NO NO Muting circuit MUTE Dose High appear at Q712 E check the High Q721 Q771 B MUTE Check the High of Q712 C Replace the TR YES YES NO ...

Страница 18: ...hekc the signal input of IC401 pin 29 36 Check the signal input of JK401 Check the signal input of IC401 pin 31 34 Check the signal of CN513 Pin 1 3 or Refer to CD Troubleshooting Check the signal input of IC401 pin 30 35 Refer to IC102 Troubleshooting CD Tuner Check the LOW of Q205 B Refer to IC504 Troubleshooting MIC ...

Страница 19: ... Refer to Power Circuit Troubleshooting Check the Data of IC301 Pin 3 4 CD TAPE FUNCTION Replace the IC203 Check the pattern of IC301 IC203 Check the 5V of IC301 pin26 Check the oscillation of X301 When power supplying to IC301 pin17 High Low High Replace the IC301 Check the power supplying to IC203 pin 16 Check the CLK Data of IC203 pin 2 3 Check the CONTROLL function END YES YES YES YES YES YES ...

Страница 20: ... output of IC401 Pin 32 33 Check the Signal output of pin25 24 OK YES YES YES YES YES NO NO NO NO FM TUN101 Check the 10V input of TUN101 B 6 Check the High Voltage of TUN101 VT 5PIN Check the OSC waveform of TUN101 Pin 8 Refer to IC102 Troubleshooting Check the 12V of Q102 E Refer to Power Circuit Trouble shooting Check the LOW of IC103 Pin 7 Refer to IC103 Troubleshooting Replace the Q102 Replac...

Страница 21: ...Pin 13 Refer to IC103 Troubleshooting YES YES YES YES NO NO NO NO NO IC103 Troubleshooting Check the power supplying to pin 17 Check the oscillation of X104 Check the waveform of CE DI DO CLK Is the normal END Refer to Power Circuit Troubleshooting Replace the X104 Check the line or refer to IC 301 Troubleshooting CE Chip Enable DI Data Input from u com DO Data Output to u com CLK Tuner mode clock...

Страница 22: ...O NO Play Check the VCC supplying to IC202 pin 18 Refer to Power Circuit Troubleshooting Check the Deck Mecha Replace the Deck Mecha Replace the IC202 Check the signal output of IC202 pin 5 20 Check the Muting Circuit YES YES YES NO NO NO YES YES NO Dubbing NORMAL or REC HIGH Q252 202 OFF ON R273 223 LOW HIGH Q253 203 ON OFF Refer to IC203 Troubleshooting Refer to REC Troubleshooting ...

Страница 23: ...pplying to C236 Check the 0 6V of Q208 B Check the Low of Q208 C Replace the Q207 END Check the Vcc power of IC202 Pin18 Check the oscillation of L203 pin 2 3 Replace the DECK Check the Low of Q253 Q203 B Replace the Q253 Q203 Refer to IC203 Troubleshooting Refer to Power Circuit Troubleshooting Refer to IC203 trouleshooting Replace the Q208 Replace the L203 YES YES YES YES YES YES YES YES YES NO ...

Страница 24: ... Parts that are shaded are critical With respect to risk of fire or electrical shock NOTE 1 Shaded parts are critical for safety Replace only with specified part number 2 Voltages are DC measured with a digital voltmefer during Play mode ...

Страница 25: ...0 NOTE Warning Parts that are shaded are critical With respect to risk of fire or electrical shock NOTE 1 Shaded parts are critical for safety Replace only with specified part number 2 Voltages are DC measured with a digital voltmefer during Play mode ...

Страница 26: ...2 21 2 22 FRONT SCHEMATIC DIAGRAM ...

Страница 27: ...2 23 2 24 TUNER DECK SCHEMATIC DIAGRAM ...

Страница 28: ...2 25 2 26 CDP SCHEMATIC DIAGRAM ...

Страница 29: ...2 27 2 28 WIRING DIAGRAM NOTE Warning Parts that are shaded are critical With respect to risk of fire or electrical shock ...

Страница 30: ...2 29 2 30 PRINTED CIRCUIT DIAGRAMS MAIN P C BOARD SOLDER SIDE ...

Страница 31: ...2 31 2 32 MAIN P C BOARD COMPONENT SIDE ...

Страница 32: ...2 33 2 34 FRONT P C BOARD COMPONENT SIDE ...

Страница 33: ...2 35 2 36 FRONT P C BOARD SOLDER SIDE ...

Страница 34: ... 2 37 CD MAIN P C BOARD AMP POWER P C BOARD NOTE Warning Parts that are shaded are critical With respect to risk of fire or electrical shock ...

Страница 35: ... H L L H L L All Active Reg Only Deactive Reg Only Active All Deactive Pin Definitions NO Symbol Description NO Symbol Description 1 DO1 CH1 Drive Output 15 GND2 Power Ground1 CH 2 3 5 2 DO1 CH1 Drive Output 16 DO5 CH5 Drive Output 3 IN1 CH1 Drive Input 17 DO5 CH5 Drive Output 4 REGVCC Regulator Supply Voltage 18 DO3 CH3 Drive Output 5 REB Regulator Output 19 DO3 CH3 Drive Output 6 REO Regulator F...

Страница 36: ...opout voltage of KA78R33 is below 0 5V in full rated current 1A This regulator has various function such as peak current protection thermal shut down overvoltage protection and output disable function Internal Block Diagram THERMAL SHUTDOWN BANDGAP REFERENCE OVERVOLTAGE PROTECTION SOA PROTECTION SHORTCIRCUIT PROTECTION 1 4 3 2 Vin Vdis Vo GND HIGH LOW OUTPUT ON OFF Q1 R1 R2 1 4V CIRCUIT LC72131 AM...

Страница 37: ...LLOW COUNTER 1 16 1 17 4bits POWER ON RESET CCB I F 1 2 Block Diagram LA1837 Single Chip Home stereo IC with Electronic Tuning Support The LA1837 is a single chip AM FM IF and MPX IC that supports electronic tuning and was developed for use in home stereo systems It is optimal for use in automatic station selection systems that use the SD and IF counting techniques Block Diagram FM SD ADJ 3 rd 5 t...

Страница 38: ...Series are Low Drop Voltage Regulator suitable for various electronic equipments It provides constant voltage power source with TO 220 4 termainal lead full molded PKG The Regulator has multi function such as over current protection overheat protection and ON OFF control ...

Страница 39: ... 2 42 KIA7805AP API THREE TERMINAL POSITIVE VOLTAGE REGULATORS 5V 6V 8V 9V 10V 12 15V 18V 24V EQUIVALENT CIRCUIT Block Diagram ...

Страница 40: ... 2 43 BA3126N 2 channel head switch for radio cassette recorders ...

Страница 41: ... Q0 parallel data output 5 6 6 Q1 parallel data output 6 7 7 Q2 parallel data output 7 8 8 Q3 parallel data output 8 9 9 Q4 parallel data output 9 10 10 Q5 parallel data output 10 11 11 Q6 parallel data output 12 N C Not connected 13 N C Not connected 11 12 14 Q7 parallel data output 12 13 15 Q8 parallel data output 13 14 16 Q9 parallel data output 14 15 17 Q10 parallel data output 15 16 18 Q11 pa...

Страница 42: ...ot suppling power push two hooks H of the base and them open the tray 2 How to improve the distorted gears 1 Do the hole C of the cam gear to face forward the pick up so the pick up is down like figure 2 Do the hole B of main gear to face forward pick up too 3 Set the last part of main gear to point A 4 Push the tray to end ...

Страница 43: ... 2 46 MEMO ...

Страница 44: ...N 454 354 351 A26 A41 305 302 354 454 454 454 A00 A43 454 353 454 454 301 286 285 284 250 257 310 A46 303 261 291 292 293 294 Option Option 286 278 280 279 277 264 260 NOTE Refer to SECTION 5 REPLACEMENT PARTS LIST in order to look for the part number of each part ...

Страница 45: ...NISM AUTO STOP DECK OPTIONAL 400 011 503 401 401 009 010 501 502 013 406 409 408 407 032 031 030 029 028 401 027 026 014 015 403 504 024 025 023 405 A01 402 022 016 017 018 019 020 021 505 007 008 003 004 005 001 002 404 400 400 006 ...

Страница 46: ...SE DECK 400 011 503 401 401 009 010 501 502 507 508 013 406 409 410 036 032 038 034 035 039 029 040 031 028 027 026 014 015 403 504 024 025 023 405 A01 402 022 016 017 018 019 020 021 505 007 008 003 004 005 001 002 404 400 400 506 037 006 ...

Страница 47: ...3 7 3 8 CD MECHANISM 416 151 156 418 169 173 171 170 419 163 422 165 159 164 417 417 416 166 167 177 175 172 184 421 162 153 168 155 421 421 184 417 417 184 A30 185 184 421 ...

Страница 48: ... 4 1 SECTION 4 SPEAKER SECTION MODEL FE 286E 850 852 854 855 856 857 ...

Страница 49: ... 4 2 MEMO ...

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