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LG FE-M217E, Service Manual

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LG FE-M217E Service Manual Download Page 1

MP3 CD
MICRO SYSTEM

SERVICE MANUAL

SERVIC

E
MANUA

L

MODEL

:

FFH-M217

X

,

FE-M217

E

CAUTION

BEFORE SERVICING THE UNIT, READ THE “SUMMARY” IN THIS MANUAL.

MODEL: FFH-M217

X

, FE-M217

E

Summary of Contents for FE-M217E

Page 1: ...MP3 CD MICRO SYSTEM SERVICE MANUAL SERVICE MANUAL MODEL FFH M217X FE M217E CAUTION BEFORE SERVICING THE UNIT READ THE SUMMARY IN THIS MANUAL MODEL FFH M217X FE M217E ...

Page 2: ...CHECK POINT 2 18 INTERNAL BLOCK DIAGRAM OF ICs 2 20 BLOCK DIAGRAM 2 25 SCHEMATIC DIAGRAMS 2 27 WIREING DIAGRAM 2 29 PRINTED CIRCUIT DIAGRAMS 2 33 SECTION 3 EXPLODED VIEWS CABINET AND MAIN FRAME SECTION 3 1 TAPE DECK MECHANISM SINGLE AUTO REVERSE DECK 3 3 OPTION PICK UP CARRIAGE 3 5 SECTION 4 SPEAKER PART SPEAKER PART 4 1 SECTION 5 REPLACEMENT PARTS LIST REPLACEMENT PARTS LIST 5 1 ...

Page 3: ... 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 lens surface theref...

Page 4: ...g 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 escape f...

Page 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...

Page 6: ...ratio 35 dB Frequency Response 100 1800 Hz AMP Output Power 20W 20W T H D 0 2 Frequency Response 40 25000Hz Signal to noise ratio 80dB TAPE Tape Speed 3000 3 MTT 111 NORMAL SPEED Wow Flutter 0 25 MTT 111 JIS WTD F F REW Time 120sec C 60 Frequency Response 250 8000Hz Signal to noise ratio 43dB P B 43dB R P Channel Separation 50dB P B 45dB R P Erase Ratio 55dB MTT 5511 Speaker Type 2 Way 2 Speaker I...

Page 7: ... 1 6 ...

Page 8: ...made to modificate any circuit If any parts are replaced or if anyone tampers with the adjustment realignment may be necessary IMPORTANT 1 Check Power source voltage 2 Set the function switch 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 l...

Page 9: ... the DC 35V of C928 Check the DC 33V of ZD 902 Check the DC 33V of Q901 E Check the PATTERN Replace the D936 Replace the ZD902 Replace the Q901 YES YES YES YES NO NO NO NO P SENS PART Does 5V appear at ZD901 Check the pattern of IC301 pin Check the waveform of D937 Replace ZD901 Replace the D937 YES YES NO NO 26 19 ...

Page 10: ...Replace the Fuse CHECK THE AC VOLTAGE OF CN901 pin1 4 Replace the IC903 Replace the D921 D922 D923 D924 Replace the IC902 Check DC VOLTAGE OF D930 Check the High of IC903 pin4 Check the High of Q605 B Replace the Q604 Replace the IC902 Replace the Transformer Replace the D930 Check the High of PN601 pin5 Check the High of IC601 pin12 YES YES YES YES YES YES YES YES YES YES NO NO NO NO NO NO NO NO ...

Page 11: ... Q702 B Check the High of IC701 pin5 Check the power of IC701 Check the connecting to SPEAKER YES YES YES NO NO NO MUTING CIRCUIT MUTE Dose High appear at Q701 Q751 B check the Low of Q701 Q751 C MUTE Check the High of PN601 pin4 Check the High of the IC301 pin12 Replace the Q703 Replace the TR Refer to IC 301 Troubleshooting YES YES YES NO NO NO ...

Page 12: ...6 23 Refer to IC201 Troubleshooting AUX Chekc the signal input of IC601 pin5 24 Check the signal input of JK601 Check the signal input of IC601 pin3 26 Check the signal input of PN603 pin6 8 Check the signal input of IC601 pin4 25 Refer to TUNER PACK Troubleshooting CD TUNER ...

Page 13: ...uit Refer to Power Circuit Troubleshooting Check the Data of IC301 pin14 15 CD TAPE FUNCTION Replace the IC601 Check the pattern Check the P SENS High of IC301 pin6 Check the oscillation of X301 When power supplying to IC301 pin92 Low High Replace the IC301 Check the power supplying to IC601 pin1 Check the CLK Data of IC601 pin14 15 Check the IC601 FUNCTION SELECTOR END YES YES YES YES YES YES YES...

Page 14: ...OWER TROUBLESHOOTING Check the 9V of TU601 pin2 Check the DC C670 Check the pattern Refer to Power circuit Troubleshooting Check the GND of TU601 pin4 10 END YES YES YES NO NO PLAY Check the VCC supplying to IC201 pin4 Refer to Power Circuit Troubleshooting Check the Deck Mecha Replace the Deck Mecha Replace the IC201 Check the signal output of IC201 pin3 6 Check the LOW of Q201 Q251 B YES YES YES...

Page 15: ...lying to C227 Check the oscillation of Q204 E Check the signal of R212 R262 Check the Pattern Check the Vcc power of IC203 Pin6 Check the oscillation of L201 pin 1 3 Replace the DECK Check the Low of Q202 Q252 B Replace the Q202 Q252 Check the Low of PN601 pin14 Refer to Power Circuit Troubleshooting Check the 0 6V of Q205 B Replace the L201 YES YES YES YES YES YES YES YES NO NO NO NO NO NO NO NO ...

Page 16: ...ICOM INTERFACE CIRCUIT PN507 CHECK MICOM INTERFACE CIRCUIT PN507 CONNECTOR CHECK PN501 PN503 CHECK PICKUP MOVEMENT CHECK BA5810FP IC503 CHECK MN6627933CG IC501 CHECK AN22004 IC502 CONNECTOR CHECK PN508 CONNECTOR CHECK PN508 PN507 PN503 PN501 READING DISPLAY CHECK READING OK CHECK IF PLAY AUDIO OUTPUT CHECK OK ...

Page 17: ...N508 PN507 DEFECTIVE MAIN POEWR SUPPLY DEFECTIVE MICOM DEFECTIVE MECHANISM CHECK POWER SUPPLY CIRCUIT PN508 PN507 PN 508 PIN 8 6 2V PIN 7 5V PN507 PIN 1 5V CHECK VOLTAGE CHANGE OF AD 5V CLOSE AND BTLMUTE VOLTAGE 5V PN507 PIN 1 5V 2 CLOSE 3 BTLMUTE ...

Page 18: ...CTIVE MICOM OR CONNECTOR DEFECTIVE MICOM OR CONNECTOR DEFECTIVE IC801 CHECK VOLTAGE THE PIN 2 OF IC505 IC505 PIN2 3 3V CHECK MICOM INTERFACE CIRCUIT PN507 PN507 PIN 6 8 9 10 SIGNAL CHECK 6 STAT 8 MDATA 9 MCLK 10 MLD CHECK THE WAVE FORM 1 CHECK RESET SIGNAL OF PN507 PN507 PIN7 5V CHECK POWER SUPPLY PORT PN508 PN507 PN508 PIN 8 6 2V PIN 7 5V PN507 PIN 1 5V ...

Page 19: ...IN 13 16 FA FA CHECK PN503 PIN 10 LD CHECK PN503 PIN 5 6 SP SP CHECK PN501 PIN 14 15 TA TA DEFECTIVE PICKUP OR IC503 OR IC501 OR IC502 DEFECTIVE PICKUP OR IC503 DEFECTIVE PICKUP OR IC502 DEFECTIVE PICKUP OR IC503 OR IC501 DEFECTIVE PICKUP OR IC503 OR IC501 OR IC502 DOES LASER LIGHT DOES SPINDLE ROTATE IS READING OK DOES LENSE MOVE UP DOWN ...

Page 20: ...WAVEFORM APPEAR AT IC503 PIN14 AND PN503 PIN3 WAVEFORM 2 SLED MOTOR WAVE CHECK PN503 CONNECTOR LINE DOES SLIN WAVEFORM APPEAR AT IC503 PIN 5 WAVEFORM 2 SLED DRIVE WAVE DEFECTIVE IC501 DEFECTIVE IC503 DEFECTIVE PN503 CONNECTOR DEFECTIVE PICKUP SLED MOTOR ...

Page 21: ...M APPEAR AT IC503 PIN15 AND PN501 PIN16 WAVEFORM 3 FOCUS COIL DRIVE WAVE DOES FAIN WAVEFORM APPEAR AT IC503 PIN 26 WAVEFORM 3 FOCUS DRIVE WAVE DEFECTIVE IC501 CHECK PN501 CONNECTOR LINE DEFECTIVE IC503 DEFECTIVE PN501 CONNECTOR DEFECTIVE PICKUP FOCUS ACTUATOR ...

Page 22: ... LASER SUPPLY VOLTAGE CHECK IS 3 3 V APPLIED TO PIN3 OF IC502 RF IC SUPPLY VOLTAGE CHECK IS 2 0 V PIN2 OF IC502 LASER CONTROL VOLTAGE CHECK DEFECTIVE IC505 DEFECTIVE IC502 CHECK PN501 CONNECTOR LINE DEFECTIVE Q501 OR D502 DEFECTIVE PN501 CONNECTOR DEFECTIVE PICKUP LASER PART ...

Page 23: ... APPEAR AT IC503 PIN12 AND PN503 PIN6 WAVEFORM 4 SPINDLE MOTOR DRIVE WAVE DOES SPIN WAVEFORM APPEAR AT IC503 PIN 6 WAVEFORM 4 SPINDLE DRIVE WAVE CHECK PN802 CONNECTOR LINE DEFECTIVE IC503 DEFECTIVE PN503 CONNECTOR DEFECTIVE PICKUP SPINDLE MOTOR DEFECTIVE IC501 ...

Page 24: ...E DOES TAIN WAVEFORM APPEAR AT IC503 PIN 23 WAVEFORM 5 TRACKING DRIVE WAVE DOES FE TE SIGNAL APPEAR IC502 PORT FE 23 TE 21 WAVEFORM 6 DOES ARF SIGNAL APPEAR IC502 PORT 8 WAVEFORM 6 DEFECTIVE IC501 DEFECTIVE IC503 CHECK PN503 CONNECTOR LINE DEFECTIVE PN503 CONNECTOR DEFECTIVE PICKUP OR IC502 DEFECTIVE PICKUP OR IC502 DEFECTIVE IC501 ...

Page 25: ...503 FA IC503 SLIN IC503 SL 1 MICOM INTERFACE WAVEFORM PN507 pin6 8 9 10 during normal play 3 FOCUS DRIVE AND MOTOR WAVEFORM TP561 IC503 pin15 When focus search failed or there is no disc on tray 2 SLED DRIVE AND MOTOR WAVEFORM IC503 pin5 14 when focus search There is disc on tray and focus search success ...

Page 26: ...M IC503 pin6 12 when TOC reading 6 RF TRACKING AND FOCUS ERROR WAVEFORM IC802 pin8 21 23 during normal play 5 TRACK DRIVE AND MOTOR WAVEFORM TP560 IC503 pin23 during normal play TP 560 IC503 SPIN IC503 SP IC503 TA IC502 ARF IC502 TE IC502 FE ...

Page 27: ... 2 20 INTERNAL BLOCK DIAGRAM OF ICs KIA6225P S IC201 BIPOLAR LINEAR INTEGRATED CIRCUIT ...

Page 28: ... 2 21 INTERNAL CIRCUIT CONFIGURATION BA3126N IC202 2 CHANNEL HEAD SWITCH FOR RADIO CASSETTE RECOREDERS BA3308 IC203 DUAL PREAMPLIFIER WITH ALC ...

Page 29: ...AL BLOCK DIAGRAM BU2090F IC501 12 BIT SERIAL IN PARALLEL OUT DRIVER Control circuit 12 bit shift register Latch VSS 2 1 3 4 5 6 7 8 DATA CLOCK Q0 Q1 Q2 Q3 Q4 16 15 14 13 12 11 10 9 VDD Q11 Q10 Q9 Q8 Q7 Q6 Q5 Output buffer open drain ...

Page 30: ...EVEL SHIFT LEVEL SHIFT LEVEL SHIFT LEVEL SHIFT POWVCC34 CH3 CH4 CH1 CH4 MUTE 16K 16K 10K 10K 10K 10K 10K 10K 10K 10K 16K 16K 7 5K 7 5K 7 5K 7 5K x 3 FWD REV LDCONT PS IN 1 IN 2 PREVCC POWVCC 12 VOL VO L VO 2 VO2 VO1 VO1 BIAS OPIN 4 OPIN 4 OPOUT 4 OPIN3 OPIN3 OPOUT3 MUTE POWVCC34 GND VO3 VO3 VO4 VO4 AM5810 1 2 3 4 5 6 7 8 9 10 11 12 13 14 28 27 26 25 24 23 22 21 20 19 18 17 16 15 ...

Page 31: ...FIER WITH MUTE ST BY DESCRIPTION The TDA7265 is class AB dual Audio power am plifier assembled in the Multiwatt package spe cially designed for high quality sound application as Hi Fi music centers and stereo TV sets PIN CONNECTION Top view ...

Page 32: ...2 25 2 26 BLOCK DIAGRAM ...

Page 33: ...28 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 NOTE Warning Parts that are shaded are critical With respect to risk of fire or electrical shock ...

Page 34: ...Shaded parts are critical for safety Replace only with specified part number 2 Voltages are DC measured with a digital voltmefer during Play mode NOTE Warning Parts that are shaded are critical With respect to risk of fire or electrical shock ...

Page 35: ...2 31 2 32 WIRING DIAGRAM ...

Page 36: ...2 33 2 34 PRINTED CIRCUIT DIAGRAMS MAIN P C BOARD ...

Page 37: ...2 35 2 36 FRONT POWER P C BOARD COMPONENT SIDE ...

Page 38: ...2 37 2 38 CDP P C BOARD SOLDER SIDE ...

Page 39: ...2 39 2 40 CDP P C BOARD COMPONENT SIDE ...

Page 40: ...90 454 454 283 351 264 305 451 302 304 A47 303 454 458 259 A41 A00 458 A26 265 306 250 260 454 284 285 308 286 458 278 279 454 A43 452 310 309 A46 452 262 266 353 258 263 287 NOTE Refer to SECTION 5 REPLACEMENT PARTS LIST in order to look for the part number of each part ...

Page 41: ...DECKMECHANISMPARTS 50 093 4748 PIGEON SOLENOID AS 023 6768R GP03A DECKMECHANISMPARTS 50 093 4810 PIGEON GEAR ASSYC 025 6768R JP03B DECKMECHANISMPARTS 50 093 31009PIGEON PULLEY FLY 026 6768R SP01D DECKMECHANISMPARTS 01 080 4609 PIGEON SPRINGCWL4 027 6768R DP01A DECKMECHANISMPARTS 50 259 3342 PIGEON LEVERCWL44 028 6768R RP01A DECKMECHANISMPARTS 22 027 41054PIGEON ROLLER CWL 029 6768R MP01A DECKMECHA...

Page 42: ... 4 1 SECTION 4 SPEAKER SECTION MODEL FE M217E 850 851 852 854 853 856 857 855 ...

Page 43: ... 4 2 ...

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