LG LPC-LM530A Manual Download Page 7 | Manualshive

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LG LPC-LM530A Manual Download Page 7

- 2-3 -

• OPEN COLOSE NG

CONNECTOR LOCKING CHECK (PN508,PN507)

DEFECTIVE MAIN

POWER SUPPLY

DEFECTIVE MICOM

DEFECTIVE IC503

DEFECTIVE MICOM

MECHANISM

CHECK POWER SUPPLY CIRCUIT (PN508,PN507)

PN508 PIN 8 = 6.2V,PIN 7 = 5V,PN507 PIN 1 = 5V

CHECK VOLTAGE CHANGE LO+, LO- OF IC503

(PN507, PIN OPEN:1 2, CLOSE:1 3)

CHECK VOLTAGE CHANGE OF OPEN CLOSE,

AND BTLMUTE VOLTAGE(=5V)

(PN507 PIN 1 2:OPEN, 1 3:CLOSE, 1 4:BTLMUTE)

YES

YES

YES

NO

NO

NO

NO

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Summary of Contents for LPC-LM530A

Page 1: ...TION OF CONTROLS 1 3 SECTION 2 ELECTRICAL ADJUSTMENTS 2 1 TROUBLESHOOTING GUDIE 2 2 IC VOLTAGE SHEET 2 17 BLOCK DIAGRAM 2 19 SCHEMATIC DIAGRAM 2 21 PRINTED CIRCUIT DIARGAMS 2 29 WIRING DIAGRAM 2 37 SECTION 3 EXPLODED VIEWS 3 1 SECTION 4 REPLACEMENT PARTS LIST 4 1 ...

Page 2: ...Hz or 87 5 108MHz Intermediate Frequency 10 7MHz Antenna Telescopic antenna Tuning Range 522 1611kHz or 530 1610kHz Intermediate Frequency 450kHz Antenna Ferrite bar antenna Recording System 4 Tracks 2 channel stereo Frequency Response 125 8000Hz Signal to Noise Ratio 40 45dB REC PLAY General CD TAPE TUNER AM MW FM Designs and specifications are subject to change without notice Remote Control Oper...

Page 3: ... 1 3 IDENTIFICATION OF CONTROLS FRONT REAR PANEL ...

Page 4: ...ARD button REWIND button 9 SLEEP button 10 PROGRAM button 11 VOLUME button 12 EQUALIZER PATTERN EQ PATT button 13 MUTE button 14 SURROUND SURR button 1 RECORD RECORD PAUSE indicator 2 MP3 indicator 3 SLEEP indicator 4 TIMER indicator 5 PROGRAM indicator 6 MEMORY indicator 7 STEREO indicator 8 BACKWARD PLAY indicator 9 TAPE MODE indicator 10 FORWARD indicator 11 CD SYNCHRO RECORDING indicator 12 CD...

Page 5: ...INT ADJUSTMENT ADJUST FOR DECK ADJUST BLAY BACK MTT 114 SPEAKER OUTPUT Azimuth adjusting screw L R Maximum STOP FWD LEFT RVS FWD RIGHT RVS LEFT 2 RECORD BIAS ADJUSTMENT DECK MODE TEST TAPE TEST POINT ADJUSTMENT ADJUST FOR REC MODE MTT 5511 C241 L201 AUTO RVS 85kHz 5kHz AUTO STOP 60kHz 5kHz ...

Page 6: ... 2 2 TROUBLESHOOTING GUIDE 1 CD ...

Page 7: ...CTIVE IC503 DEFECTIVE MICOM MECHANISM CHECK POWER SUPPLY CIRCUIT PN508 PN507 PN508 PIN 8 6 2V PIN 7 5V PN507 PIN 1 5V CHECK VOLTAGE CHANGE LO LO OF IC503 PN507 PIN OPEN 1 2 CLOSE 1 3 CHECK VOLTAGE CHANGE OF OPEN CLOSE AND BTLMUTE VOLTAGE 5V PN507 PIN 1 2 OPEN 1 3 CLOSE 1 4 BTLMUTE YES YES YES NO NO NO NO ...

Page 8: ... 2 4 READING DISPLAY CHECK ONLY CD DISPLAY ...

Page 9: ...K PN50 1 PIN 1 4 1 5 TA TA CHECK PN503 PIN5 6 SP SP CHECK PN50 1 PIN 1 0 LD CHECK PN50 1 PIN 1 5 1 6 FA FA CHECK PN503 PIN3 4 SL SL DEFECTIVE PICK UP OR IC503 OR IC501 OR IC502 DEFECTIVE PICK UP OR IC503 OR IC501 DEFECTIVE PICK UP OR IC502 DEFECTIVE PICK UP OR IC503 DEFECTIVE PICK UP OR IC503 OR IC501 OR IC502 A B C D E NO NO NO NO NO NO NO NO NO NO YES YES YES YES YES ...

Page 10: ...AR AT IC503 PIN 1 4 AND PN503 PIN3 WAVEFORM 2 SLED MOTOR WAVE DOSE SLIN WAVEFORM APPEAR AT IC503 PIN5 WAVEFORM 2 SLED DRIVE WAVE CHECK PN503 CONNECTOR LINE DEFECTIVE IC50 DEFECTIVE IC503 DEFECTIVE PN503 CONNECTOR DEFECTIVE PICK UP SLED MOTOR A YES NO NO NO NO NO ...

Page 11: ...03 PIN 1 5 AND PN50 1 PIN 1 6 WAVEFORM 3 FOCUS COIL DRIVE WAVE DOSE FAIN WAVEFORM APPEAR AT IC503 PIN26 WAVEFORM 3 FOCUS DRIVE WAVE CHECK PN50 1 CONNECTOR LINE DEFECTIVE IC50 1 DEFECTIVE IC503 DEFECTIVE PN501 CONNECTOR DEFECTIVE PICK UP FOCUS ACTUATOR B YES NO NO NO NO NO ...

Page 12: ... VOLTAGE CHECK IS 3 3V APPLIED TO PIN3 OF IC502 RF IC SUPPLY VOLTAGE CHECK CHECK PN501 CONNECTOR LINE DEFECTIVE IC501 IS 2 0V PIC2 OF IC502 LASER CONTROL VOLTAGE CHECK DEFECTIVE IC501 DEFECTIVE IC503 DEFECTIVE PICK UP FOCUS ACTUATOR DEFECTIVE PN501 CONNECTOR C YES YES NO NO NO NO NO NO ...

Page 13: ...03 DEFECTIVE PN503 CONNECTOR DEFECTIVE PICK UP SPINDLE MOTOOR CHECK PN503 CONNECTOR LINE D NO NO NO NO DOSE SP WAVEFORM APPEAR AT IC503 PIN 1 2 AND PN503 PIN6 WAVEFORM 4 SPINDLE MOTOR DRIVE WAVE DOSE SPIN WAVEFORM APPEAR AT IC503 PIN6 WAVEFORM 4 SPINDLE DRIVE WAVE YES YES ...

Page 14: ...ORM APPEAR AT IC503 PIN23 WAVEFORM 5 TRACKING DRIVE WAVE DEFECTIVE IC503 DEFECTIVE IC501 DEFECTIVE IC503 DEFECTIVE PN503 CONNECTOR DEFECTIVE PICK UP OR IC502 DEFECTIVE PN503 CONNECTOR DEFECTIVE PICK UP SPINDLE MOTOR DOSE ARF SIGNAL APPEAR IC502 PORT8 WAVEFORM 6 DOSE FE TE SIGNAL APPEAR IC502 PORT FE 23 RE 21 WAVEFORM 6 NO NO NO NO NO NO NO YES YES YES ...

Page 15: ...ace the IC801 Check the D602 D604 D605 Check the ZD803 Q807 Check the Q601 Replace the X601 X602 Check the Q810 E DC Power output Check the D901 D902 D903 D904 Check the DC power output of IC801 pin3 5 2V Check the power output IC601 pin17 54 90 Check the DC 5 2V output of Q808 C Check the Reset of IC601 pin11 Q601 C Check the Oscillation of X601 X602 Replace the IC601 NO NO NO NO NO NO NO NO NO Y...

Page 16: ...e signal input of IC301 pin6 23 Check the signal input of IC301 pin3 26 Check the signal input of IC301 pin4 25 Refer to Tuner Pack Troubleshooting Check the signal input of PN302 R CH L CH Refer to TAPE Troubleshooting Check the HIGH of the IC601 pin9 Check the pattern Replace the Q305 Q306 Check the IC601 NO NO NO YES YES YES YES YES YES YES YES ...

Page 17: ...e ZD 302 Replace the Q301 Check the IC601 END Check the Power supplying to IC301 pin 1 Check the 8 2V DC output ZD302 Check the 7 5V DC Output Q301 E Check the DC Output of Q814 ZD806 Check the Data of IC601 pin 3 4 CD TAPE Function Check the CLK Data of IC301 pin 14 15 NO NO NO NO NO NO YES YES YES YES YES YES ...

Page 18: ...Power of PN101 Tu B Check the DC output of Q818 C Check the high Q819 B Check the DC output Q802 E Replace Tuner pack CE Chip Emable DI Data Input From u com DO Data Output to u com CLK Tuner Mode Clock Check the PN101 of CE DI DO CLK PLL Is the normal END YES YES YES YES NO NO NO ...

Page 19: ...ng to IC201 pin18 Check the signal output of IC201 pin5 20 Check the LOW of Q210 211 B Check the DC output Q815 C Check the high IC601 pin92 Replace the Deck Mecha Check the pattern Check the Deck Mecha Replace the IC201 YES YES YES YES NO NO NO NO Play ...

Page 20: ...on of L201 pin1 3 Replace the deck Check the power supplying to C245 Check the LOW Q813 C Check the IC601 pin88 Check the DC output of Q811 C Check the Oscillation of Q202 E Check the signal of R239 R240 Check the pattern Check the 0 6V of Q203 B Replace the L201 Replace Q208 209 YES YES YES YES YES YES YES NO NO NO NO NO NO NO ...

Page 21: ... 2 17 VOLTAGE SHEET ...

Page 22: ... 2 18 ...

Page 23: ... BLOCK DIAGRAM 2 19 2 20 ...

Page 24: ...2 21 2 22 SCHEMATIC DIAGRAMS 1 MAIN SCHEMATIC DIAGRAM POWER EQ AMP ...

Page 25: ...2 23 2 24 2 FRONT MICOM SCHEMATIC DIAGRAM ...

Page 26: ...2 25 2 26 3 DECK SCHEMATIC DIAGRAM ...

Page 27: ...2 27 2 28 4 CDP SCHEMATIC DIAGRAM ...

Page 28: ...2 29 2 30 PRINTED CIRCUIT DIAGRAM 1 MAIN P C DIAGRAM COMPONENT SIDE ...

Page 29: ...2 31 2 32 1 MAIN P C DIAGRAM SOLDER SIDE ...

Page 30: ...2 33 2 34 2 CD P C DIAGRAM COMPONENT SIDE 2 CD P C DIAGRAM SOLDER SIDE ...

Page 31: ...2 35 2 36 3 KEY P C DIAGRAM 4 BATTERY POWER P C DIAGRAM ...

Page 32: ...2 37 2 38 WIRING DIAGRAM ...

Page 33: ... A41 453 280 452 452 452 281 282 286 291 292 252 260 450 274 453 261 264 450 265 A42 451 451 275 270 272 273 271 260 453 250 261 259 259 258 257 254 253 256 251 255 256A NOTE Refer to SECTION 4 REPLACEMENT PARTS LIST in order to look for the part number of each part ...

Page 34: ...3 3 3 4 MEMO MEMO ...

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