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Table of Contents
❍ SECTION 1. GENERAL
• SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
• IDENTIFICATION 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
[CONTENTS]
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Summary of Contents for LG LPC-LM530A
- Page 1 [CONTENTS] ❍ SECTION 1. GENERAL • SPECIFICATIONS ............1-2 •...
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Page 2: Section 1. General
Point the remote control at the remote sensor and press the buttons. Distance: About 23 ft (7 m)from the front of the remote sensor. Angle: About 30 °in each direction of the front of the remote sensor. MODEL LPC-LM530A/X SECTION LPC-LM535A/X Power supply Refer to the back panel of the unit. -
Page 3: Identification Of Controls
❏ IDENTIFICATION OF CONTROLS FRONT/REAR PANEL - 1-3 -... - Page 4 Remote Control 1. XDSS button 2. POWER button POWER XDSS SURR. MUTE 3. TUNER/BAND button 4. This button is not available. TUNER/BAND EQ PATT. VOLUME 5. PRESET ( ) button PRESET PROGRAM 6. CD FUNCTION buttons • PLAY/PAUSE ( ) button •...
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Page 5: Section 2. Electrical
SECTION 2. ELECTRICAL ❏ ADJUSTMENTS 1. TAPE DECK ADJUSTMENT DECK MODE TEST TAPE TEST POINT ADJUSTMENT ADJUST FOR DECK ADJUST STOP FWD: LEFT BLAY BACK MTT-114 SPEAKER OUTPUT Azimuth adjusting screw L/R Maximum FWD:RIGHT RVS: LEFT 2. RECORD BIAS ADJUSTMENT DECK MODE TEST TAPE TEST POINT ADJUSTMENT... -
Page 6: Troubleshooting Guide
❏ TROUBLESHOOTING GUIDE 1. CD - 2-2 -... - Page 7 • OPEN COLOSE NG CONNECTOR LOCKING CHECK (PN508,PN507) CHECK POWER SUPPLY CIRCUIT (PN508,PN507) DEFECTIVE MAIN PN508 PIN 8 = 6.2V,PIN 7 = 5V,PN507 PIN 1 = 5V POWER SUPPLY CHECK VOLTAGE CHANGE OF OPEN CLOSE, DEFECTIVE MICOM AND BTLMUTE VOLTAGE(=5V) (PN507 PIN 1 2:OPEN, 1 3:CLOSE, 1 4:BTLMUTE) CHECK VOLTAGE CHANGE LO+, LO- OF IC503 DEFECTIVE IC503...
- Page 8 • “READING” DISPLAY CHECK (=ONLY “CD” DISPLAY) - 2-4 -...
- Page 9 • READING OK CHECK (= “ NO DISC ” DISPLAY) CONNECTOR LOCKING CHECK(PN50 1 ,PN503) DOES SLED MOVE? DEFECTIVE PICK UP OR CHECK PN503 PIN3.4 IC503 OR IC501 OR IC502 (SL+,SL-) DOSE LENSE MOVE? (UP&DOWN) DEFECTIVE PICK UP OR CHECK PN50 1 PIN 1 5.1 6 IC503 OR IC501 (FA-,FA+) DOSE LASER LIGHT?
- Page 10 • READING OK CHECK #A(=“NO DISC” DISPLAY) DOSE SL+ WAVEFORM APPEAR AT(IC503 PIN 1 4 AND PN503 PIN3)WAVEFORM #2 SLED MOTOR WAVE DOSE SLIN WAVEFORM APPEAR AT (IC503 PIN5) DEFECTIVE IC50 WAVEFORM #2 SLED DRIVE WAVE DEFECTIVE IC503 DEFECTIVE PN503 CHECK PN503 CONNECTOR LINE CONNECTOR DEFECTIVE PICK UP...
- Page 11 • READING OK CHECK #B(=“NO DISC” DISPLAY) DOSE FA+ WAVEFORM APPEAR AT(IC503 PIN 1 5 AND PN50 1 PIN 1 6)WAVEFORM #3 FOCUS COIL DRIVE WAVE DOSE FAIN WAVEFORM APPEAR AT (IC503 PIN26) DEFECTIVE IC50 1 WAVEFORM #3 FOCUS DRIVE WAVE DEFECTIVE IC503 DEFECTIVE PN501 CHECK PN50 1 CONNECTOR LINE...
- Page 12 • READING OK CHECK #C(=“NO DISC” DISPLAY) IC ?V APPLIED TO PIN 10 OF PN501 LASER SUPPLY VOLTAGE CHECK IS 3.3V APPLIED TO PIN3 OF IC502 DEFECTIVE IC501 RF IC SUPPLY VOLTAGE CHECK IS 2.0V PIC2 OF IC502 LASER CONTROL DEFECTIVE IC501 VOLTAGE CHECK DEFECTIVE IC503...
- Page 13 • READING OK CHECK #D(=“NO DISC” DISPLAY) 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) DEFECTIVE IC50 1 WAVEFORM #4 SPINDLE DRIVE WAVE DEFECTIVE IC503 DEFECTIVE PN503 CHECK PN503 CONNECTOR LINE CONNECTOR...
- Page 14 • READING OK CHECK #E(=“NO DISC” DISPLAY) DOSE TA+ WAVEFORM APPEAR AT(IC503 PIN 17 AND PN503 PIN 15)WAVEFORM #5 TRACKING COIL DRIVE WAVE DOSE TAIN WAVEFORM APPEAR AT (IC503 PIN23) DEFECTIVE IC501 WAVEFORM #5 TRACKING DRIVE WAVE DEFECTIVE IC503 DEFECTIVE PN503 DEFECTIVE IC503 CONNECTOR DOSE ARF SIGNAL APPEAR?
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Page 15: Main Power
2. MAIN POWER Main Power input (AC-cord in) LCD Display ”Hello” Check the Voltage-selector 110V/230V (Duble Voltage only) Check the DC out of C813(+) Check the Fuse Replace the Fuse Check the D901,D902,D903,D904 Check the DC power output of IC801 Replace the ZD805 Check the ZD805 of +10V pin3 +5.2V... - Page 16 3. MUTING CIRCUIT(MUTE) Dose “HIGH” appear at Check the “HIGH” of the Check the IC601 Q305, Q306 “B” IC601 pin9 Check the pattern Replace the Q305, Q306 Check the “LOW” of Q305, Q306 “E” MUTE 4. FUNCTION MODE AUDIO ABNORMAL TAPE Check the signal input of IC301 pin6, 23 Refer to “TAPE Troubleshooting”...
- Page 17 5. IC301 TROUBLESHOOTING Check the Power supplying to Check the +8.2V DC Replace the ZD 302 IC301 pin 1 output ZD302 Check the +7.5V DC Replace the Q301 Output Q301 “E” Check the DC Output of Q814, ZD806 Check the CLK Data of Check the Data of Check the IC601 IC301 pin 14, 15...
- Page 18 6. TUNER PACK TROUBLESHOOTING 6. TUNER PACK TROUBLESHOOTING Check the Tuner Power of Check the DC output of Check the “high” PN101 “Tu- B+” Q818 “C” Q819 “B ” Check the DC output Q802 “E ” Check the PN101 of CE, DI, DO, CLK (PLL) CE : Chip Emable DI : Data Input(From u-com)
- Page 19 7. TAPE TROUBLESHOOTING • Play Check the DC output Check the “high” Check the power supplying to IC201 pin18 Q815 “C” IC601 pin92 Check the pattern Replace Check the signal output of Check the Deck Mecha the Deck Mecha IC201 pin5,20 Replace the IC201 Check the “LOW ”...
- Page 20 • REC Check the “LOW ” of Check signal supplied to Check the “LOW ” of Q208, 209 ”B” IC201 pin 11, 14 IC601 pin32 Replace Q208, 209 Check the Oscillation of L201 pin1, 3 Replace the deck Check the power supplying to C245(+) Check the “LOW ”...
- Page 21 ❏ VOLTAGE SHEET - 2-17 -...
- Page 22 - 2-18 -...
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Page 23: Block Diagram
❏ BLOCK DIAGRAM 2-19 2-20... -
Page 24: Schematic Diagrams
❏ SCHEMATIC DIAGRAMS 1. MAIN SCHEMATIC DIAGRAM (POWER/EQ/AMP) 2-21 2-22... - Page 25 2. FRONT/MICOM SCHEMATIC DIAGRAM 2-23 2-24...
- Page 26 3. DECK SCHEMATIC DIAGRAM 2-25 2-26...
- Page 27 4. CDP SCHEMATIC DIAGRAM 2-27 2-28...
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Page 28: Printed Circuit Diagram
❏ PRINTED CIRCUIT DIAGRAM 1. MAIN P.C. DIAGRAM (COMPONENT SIDE) 2-29 2-30... - Page 29 1. MAIN P.C. DIAGRAM (SOLDER SIDE) 2-31 2-32...
- Page 30 2. CD P.C. DIAGRAM (COMPONENT SIDE) 2. CD P.C. DIAGRAM (SOLDER SIDE) 2-33 2-34...
- Page 31 3. KEY P.C. DIAGRAM 4. BATTERY/POWER P.C. DIAGRAM 2-35 2-36...
- Page 32 ❏ WIRING DIAGRAM 2-37 2-38...
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Page 33: Section 3. Exploded Views
SECTION 3. EXPLODED VIEWS NOTE) Refer to “SECTION 4 REPLACEMENT PARTS LIST” in order to look for the 256A part number of each part. - Page 34 MEMO MEMO...