LG TL-AT130M User Manual

2CAUTIONBEFORE SERVICING THE UNIT, READ THE “SAFETY PRECAUTIONS” IN THIS MANUAL.ALARMKEYLOCKPAUSE / STILLPOWER / TIMERMENURECREC / PB SPEEDTRACKINGMOV

2-32. Packing & Accessory Section✒ NOTE NOTE Refer to “REPLACEMENT PARTSLIST” in order to lookfor the part number of each part.801 INSTRUCTION ASS

3-1SECTION3 ELECTRICALELECTRICAL ADJUSTMENT PROCEDURES1. PG ADJUSTMENTMODE SPECIFICATION OBJECT MEASURED OBJECT ADJUSTEDPLAYBACK IN SP PG : 416 ± 20

3-2SECTION3 ELECTRICALELECTRICAL TROUBLESHOOTING GUIDE1. Power Circuit(SMPS)(1) No 5.3 A(2) No 9VIs R101 normal?YESNONONONOYESYESIs there Vcc (about

3-3(4) No 5.2 A (TO AVCP, BIAS) (5) No 10VIs there voltage (about 0V) at Q157 collector.NONOYESYESIs Q170 normal?, Is there about13.5V at Q107 Base?Ch

3-4SECTION3 ELECTRICALELECTRICAL TROUBLESHOOTING GUIDE2. SERVO CIRCUIT(1) Video is unstable in PB modeDoes CTL pulse move on tracking?YESNONODoes Vi

(3) Capstan motor stops3-5SECTION3 ELECTRICALELECTRICAL TROUBLESHOOTING GUIDECheck the Ass’y between PMC01and Capstan motorYESNOAren’t pattern or co

3-6SECTION3 ELECTRICALELECTRICAL TROUBLESHOOTING GUIDE3. Y/C CIRCUIT(1) No Video in EE ModeDoes the Video signal appear at the IC301 Pin29?NONONOChe

(2) When the Y(Luminance)signal doesn’t appear on the screen in PB Mode.3-7Clean the Drum. NONOIs the V.H.S/W "H" about3.4V to the IC301 Pi

3-8SECTION3 ELECTRICALELECTRICAL TROUBLESHOOTING GUIDE(3) When the C(Color) signal doesn't appear on the screen in PB ModeCheck the circuit of

3-9SECTION3 ELECTRICALELECTRICAL TROUBLESHOOTING GUIDE4. AUDIO CIRCUIT(1) No sound in EE ModeIs the Audio signal applied to theIC301 Pin 76?NONOChec

TABLE OF CONTENTSSECTION 1SUMMARY• SPECIFICATIONS...1-1• LOCATION OF CUSTOMER CONTROLS...

3-10SECTION3 ELECTRICALELECTRICAL TROUBLESHOOTING GUIDE(3) No sound in REC Mode.Is the Audio signal appliedto the IC301 Pin 76? NONOCheck the path o

3-11SECTION3 ELECTRICALELECTRICAL TROUBLESHOOTING GUIDE5. SYSTEM/KEY CIRCUIT(1) AUTO STOPNONODoes T/up reel pulse appearat Q514 Base terminal?Auto S

3-12SECTION3 ELECTRICALELECTRICAL TROUBLESHOOTING GUIDE(2) No F.OSD display.(3) No Key displayIs there 5.3V IC501 Pin 51?NONOReplace bad switchesRep

3-143-13SECTION3 ELECTRICALBLOCK & CIRCUIT DIAGRAMS1. OVERALL WIRING DIAGRAM

3-163-15SECTION3 ELECTRICALBLOCK & CIRCUIT DIAGRAMS2. POWER BLOCK DIAGRAM

3-183-17SECTION3 ELECTRICALBLOCK & CIRCUIT DIAGRAMS3. POWER CLRCUIT DIAGRAM

3-19SECTION3 ELECTRICALBLOCK & CIRCUIT DIAGRAMS4. AUDIO BLOCK DIAGRAM

3-20SECTION3 ELECTRICALBLOCK & CIRCUIT DIAGRAMS5. Y/C BLOCK DIAGRAM

3-223-21SECTION3 ELECTRICALBLOCK & CIRCUIT DIAGRAMS6. A/VCIRCUIT DIAGRAM

3-23SECTION3 ELECTRICALBLOCK & CIRCUIT DIAGRAMS

SECTION1 SUMMARYSPECIFICATIONS1-1GENERALHead System Four head helical scan azimuth systemPower Source AC 100-240V, 50/60HzPower Consumption Appro

3-253-24SECTION3 ELECTRICALBLOCK & CIRCUIT DIAGRAMS7. SYSTEMBLOCK DIAGRAM

3-26SECTION3 ELECTRICALBLOCK & CIRCUIT DIAGRAMS

3-283-27SECTION3 ELECTRICALBLOCK & CIRCUIT DIAGRAMS8. SYSTEMCLRCUIT DIAGRAM

3-303-29SECTION3 ELECTRICALBLOCK & CIRCUIT DIAGRAMS9. JACKCLRCUIT DIAGRAM

3-323-31SECTION3 ELECTRICALBLOCK & CIRCUIT DIAGRAMS10. KEY-BOARDCLRCUIT DIAGRAM

3-343-33SECTION3 ELECTRICALPRINTED CIRCUIT DIAGRAMS1. MAIN P.C.BOARD

3-35SECTION3 ELECTRICALPRINTED CIRCUIT DIAGRAMSPRINTED CIRCUIT BOARD DIAGRAMS2. KEY 1 P.C.BOARD 3. KEY 2 P.C.BOARD4. JACK P.C.BOARD

DECK MECHANISM PARTSLOCATIONS• Top View...4-1• Bottom View ...

DECK MECHANISM PARTS LOCATIONS4-14632795111816191719121315101311481533• Top View• Bottom View20242320242221293029302532272628NOTE : When reassembly pe

4-2DECK MECHANISM DISASSEMBLY(S3)(S2)(S2)(S3)(A)StatorCarbon BrushDrum MotorRotorDrum Sub AssemblyDrum FPC(S1)(S1)(S1)Holder FPCH1H21. Drum Assembly (

SECTION1 SUMMARYLOCATION OF CUSTOMER CONTROLS1-21 POWER/TIMER BUTTON2 MENU BUTTON3 REC (RECORD) BUTTON4 MOVE BUTTON5 SEL (SELECT) BUTTON6 DOWN BUTTO

DECK MECHANISM DISASSEMBLY4-3(B)(E)(C1)(C)Plate TopArm Assembly F/LSpring Lever S/WGear Assembly Rack F/LChassisOpener DoorBracket Assembly L/D MotorH

4-4DECK MECHANISM DISASSEMBLY2. Plate Top (Fig. A-2-1)1) Pull the (B) portion of the Plate Top back in direction ofarrow and separate the right side o

DECK MECHANISM DISASSEMBLY4-59. Arm Assembly Cleaner (Fig. A-3-1)1) Breakaway the (A) portion as Fig. A-3-1 from theembossing of the Chassis, turn the

4-6DECK MECHANISM DISASSEMBLYBrake Assembly TSpring TB(H9)Reel TBrake Assembly RSSpring RSArm Assembly TensionSpring TensionReel SBase Tension(H11)(H1

DECK MECHANISM DISASSEMBLY4-7Opener LidArmAssemblyPinchBase Assembly P4Arm T/upLever T/up(A)(B)(C)(C)(H13)(B)(H13)ChassisFig. A-516. Base Assembly P4

4-8DECK MECHANISM DISASSEMBLYChassis(S5)Belt CapstanMotor CapstanWasher(W1)Lever F/RClutch Assembly D35Brake Assembly Capstan(L1)(L2)(L1)Fig. A-620. B

DECK MECHANISM DISASSEMBLY4-9Gear DriveWasher (W2)Gear CamPlate SliderLever TensionLever springBase LoadingGear Sector(L3)(H15)(H16)(H14)(A)ChassisGea

4-10DECK MECHANISM DISASSEMBLYGear Assembly P3Gear Assembly P2Base Assembly P2Base Assembly P3(A)(B)ChassisGear Assembly P2 HoleGear Sector Hole(A)Pla

DECK MECHANISM DISASSEMBLY4-11(A)(B) (C)(S7)Arm Assembly IdlerBase LoadingBase TensionChassis(D)Fig. A-931. Base Loading (Fig. A-9-1)1) Remove the Scr

DECK MECHANISM ADJUSTMENT4-12• Tools and Fixfures for Service1. Cassette Torque Meter1. SRK-VHT-303(Not SVC part)1. Parts No: D00-D0064. Torque Gauge

1-31 TIME LAPSE VCR TIME INDICATION2 ALARM INDICATION3 SERIES INDICATION4 RECORD INDICATION5 TIMER INDICATION6 CASSETTE INDICATION7 INDEX INDICATION8

DECK MECHANISM ADJUSTMENT4-13Purpose:To determine if the Mechanism is in the correct position, when a Tape is ejected.1. Mechanism Alignment Position

4-14DECK MECHANISM ADJUSTMENTPurpose: To insure smooth transport of the tape during each mode of operation.If the tape transport is abnormal, then che

DECK MECHANISM ADJUSTMENT4-154.Guide Roller Height AdjustmentAdjustment Procedure1) Confirm if the tape runs along the tape guide line of theLower Dru

4-16DECK MECHANISM ADJUSTMENT5. Audio/Control (A/C) Head Adjustment10.9Purpose: To insure that the tape passes accurately over the Audio and Control T

DECK MECHANISM ADJUSTMENT4-17Purpose: To obtain compatibility with the other VCR(VCP) Models.5-2. Confirm that the tape passes smoothlybetween the Tak

4-18DECK MECHANISM ADJUSTMENTPurpose: To correct for shift in the Roller Guide and X value after replacing the Drum.8-2. Checking for tape curling or

MAINTENANCE/INSPECTION PROCEDURE4-19(3) F/E Head(5) Drum Assembly(Video Head)(4) BaseAssembly P2(2) Tension Post(1) Supply Reel(6) Base Assembly P31.

MAINTENANCE/INSPECTION PROCEDURE4-202. Required MaintenanceThe recording density of a VCR(VCP) is much higher thanthat of an audio tape recorder. VCR(

MAINTENANCE/INSPECTION PROCEDURE4-215-2) Greasing(1) Greasing guidelinesApply grease, with a cleaning patch. Do not use exces-sive grease. It may come

MAINTENANCE/INSPECTION PROCEDURE4-22Lever, F/R, Base, Tension GEAR AY, P2 & P3Lever, F/R Base, TensionArm TensionGuide HoleClutch(G-754. Yellow)Bo

1-4TERMINAL SIGNAL LEVELSSECTION1 SUMMARYLOCATION OF CUSTOMER CONTROLSINPUT OUTPUTINPUTINPUTOUTPUTOUTPUTOUTPUTOUTPUTINPUTCOMMONThe input signal that

MECHANISM TROUBLESHOOTING GUIDE4-23Auto REW doesn't work.Is the output of END sensor ofsupply side "H"?“H”: more than 3.5V“L”: less tha

4-24MECHANISM TROUBLESHOOTING GUIDEAUTO STOP.(PLAY/CUE/REV)Are there T/up and Supply Reelpulses. In Play/Cue/Rev, Is the PinchRoller in contact with t

4-25MECHANISM TROUBLESHOOTING GUIDEIn PB mode Tape Presencenot sensed.Is the Pinch Roller attached to the Capstan Motor Shaft?Check Alignment position

MECHANISM TROUBLESHOOTING GUIDE4-26Cassette cannot be inserted.Does the Lever AssemblySwitch work?Is the Lever Assembly SwitchSpring damaged or omitte

MECHANISM TROUBLESHOOTING GUIDE4-27Cassette does not load.Does the cassette insert?Does the Opener Lid work?Check the opener Door assembledcorrectly.R

4-28EXPLODED VIEWS117103105117100106107A21114113112110115A24116102A23032A22109054054A100A100B1. Front Loading Mechanism Section

EXPLODED VIEWS4-29401402001008011 031079017032024406020021028019018029030026A03A04A01002002A025027022003004006007010405014015009409013023016405012402O

EXPLODED VIEWS4-30051052517061056058518052A055060410070069076032077068064066065067A11078A12OPTIONAL PART3. Moving Mechanism Section(2)

- 5-1 -SECTION 5. REPLACEMENT PARTS LISTNOTE: WarningParts that are shaded are critical With respectto risk of fire or electrical shock.MODEL : NTH960

- 5-2 -S AL LOCA.NO. PART NO DESCRIPTION SPECIFICATION REMARKSASSEMBLY SECTIONA00 6721R-0771U DECK ASSEMBLY,VIDEO DECK/MECHA D35 LG T/L (4HD(ALLA42687

1-5No. DESCRIPTION 1500 3000 5000 6000 7500 9000 10000 12000 Test freatures Specification1 DRUM ASSY RF out level -4dB and below2 ARM ASSY CLEANER Wea

- 5-3 -MODEL : NTH960 RU

S AL LOCA.NO. PART NO DESCRIPTION SPECIFICATION REMARKC332 0CN1030F678 CAPACITOR TUBULA(HIGH DIELE) 0.01M 16V M Y TA26C333 0CN1040K948 CAPACITOR,F

- 5-5 -MODEL : NTH960 RU

- 5-6 -MODEL : NTH960 R

- 5-7 -S AL LOCA.NO. PART NO DESCRIPTION SPECIFICATION REMARKD903 0DD133009AA DIODE,SWITCHING 1SS133 DETECT,SW TPD904 0DD133009AA DIODE,SWITCHING 1S

- 5-8 -MODEL : NTH960 R

- 5-9 -S AL LOCA.NO. PART NO DESCRIPTION SPECIFICATION REMARKR3G6 0RD1800F608 RESISTOR,FIXED CARBON FILM 180 OHM 1/6 W 5% TA26R402 0RD2204F608 RESISTO

- 5-10 -MODEL : NTH960

- 5-11 -S AL LOCA.NO. PART NO DESCRIPTION SPECIFICATION REMARKR610 0RD2701F608 RESISTOR,FIXED CARBON FILM 2.7K OHM 1/6 W 5% TA26R611 0RD3901F608 RESIS

- 5-12 -S AL LOCA.NO. PART NO DESCRIPTION SPECIFICATION REMARKVR501 613-032W RESISTOR,DRAWING RH063MCJ5R (220K)VR601 611-024B RESISTOR,DRAWING RK09K1

2-1SECTION2 CABINET & MAIN FRAMEEXPLODED VIEWS1. Cabinet and Main Frame SectionCabinet & Main Frame Section Parts listMODEL : TL-AT130MS AL

- 5-13 -MODEL : NTH960

1-1. Cabinet and Main Frame Section2-2Cabinet & Main Frame Section Parts listASSEMBLY PARTS SECTIONA42 6871RK5700K Ass'y Front PCB SNILN4T35