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Aiwa HV-FX5100 service manual Troubleshooting Guide, E-10

Models: HV-FX5100

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AUTO TRACKING DOES NOT OPERATE

By manual tracking,

does the DC level at pin 84 of IC4001 change ?

Yes

TROUBLESHOOTING GUIDE

Check CYLINDER UNIT.

In auto tracking, is the	No	Does	the CTL PULSE	No
In auto tracking, is the	No	(about	4.6Vp-p) appear at	No
voltage at pin 6 of IC1002		(about	4.6Vp-p) appear at	Check CONTROL HEAD.
voltage at pin 6 of IC1002		pin 97 of IC1002?
more than DC 1V ?		pin 97 of IC1002?
more than DC 1V ?
Yes			Yes
Replace IC1002.

E-10

Page 33

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Aiwa HV-FX5100 service manual Troubleshooting Guide, E-10

Contents

VIDEO CASSETTE RECORDER S/M Code No. 09-996-332-2N1BASIC TAPE MECHANISM OVD-6 SPECIFICATIONSTABLE OF CONTENTS IMPORTANT NOTICE SERVICING NOTICES ON CHECKING4.PERFORM A SAFETY CHECK AFTER SERVICING 1.KEEP THE NOTICES1.REMOVAL OF MECHANICAL PARTS AND P.C. BOARDS DISASSEMBLY INSTRUCTIONS1-2 FLAP Refer to Fig 1-3 DECK CHASSIS Refer to FigDISASSEMBLY INSTRUCTIONS 2. REMOVAL OF DECK PARTS2-1 TOP BRACKET Refer to Fig 2-3 TAPE GUIDE L Refer to Fig. 2-3-A2-6 LINK ASSY Refer to Fig DISASSEMBLY INSTRUCTIONS2-9 TENSION ASSY Refer to Fig. 2-9-A 2-7 LOADING MOTOR ASSY Refer to FigRefer to MECHANICAL ADJUSTMENT DISASSEMBLY INSTRUCTIONS2-11 S REEL/T REEL ASSY Refer to Fig 2-13 A/C HEAD Refer to Fig. 2-13-A2-15 AHC ASSY/CYLINDER UNIT ASSY Refer to Fig DISASSEMBLY INSTRUCTIONS2-16 CAPSTAN DD UNIT Refer to Fig 2-17 MIDDLE GEAR/MAIN CAM Refer to Fig. 2-17-A2-19 LOADING GEAR S/T ASSY Refer to Fig. 2-19-A DISASSEMBLY INSTRUCTIONS2-20 INCLINED S/T ASSY Refer to Fig B2-5H.SW KEY TO ABBREVIATIONSAFT DET A.PBSYNC KEY TO ABBREVIATIONSSYNC SEP TRACMethod SERVICE MODE LISTOperations C2-1PREVENTIVE CHECKS AND SERVICE INTERVALS CONFIRMATION OF USING HOURSC3-1 PREVENTIVE CHECKS AND SERVICE INTERVALS CLEANING1. AUDIO CONTROL HEAD 2. TAPE RUNNING SYSTEMC4-1 NOTE FOR THE REPLACING OF MEMORY ICPREPARATION FOR SERVICING SERVICING FIXTURES AND TOOLSHow to use the Servicing Fixture RemarksC6-1 VCR TEST TAPE INTERCHANGEABILITY TABLEMECHANICAL ADJUSTMENTS 1. CONFIRMATION AND ADJUSTMENTD1-1 Refer to the ELECTRICAL ADJUSTMENTS MECHANICAL ADJUSTMENTS1-4 CONFIRMATION OF VSR TORQUE 1-5 CONFIRMATION OF REEL BRAKE TORQUE2-3 TAPE RUNNING ADJUSTMENT X VALUE ADJUSTMENT MECHANICAL ADJUSTMENTSRefer to SERVICING FIXTURE AND TOOLS Refer to item3. MECHANISM ADJUSTMENT PARTS LOCATION GUIDE MECHANICAL ADJUSTMENTSD1-4 1. BASIC ADJUSTMENT ELECTRICAL ADJUSTMENTS1-1 PG SHIFTER CONDITIONS INSTRUCTIONSSYSCON PCB 2. ELECTRICAL ADJUSTMENT PARTS LOCATION GUIDEELECTRICAL ADJUSTMENTS D2-2TROUBLESHOOTING GUIDE TROUBLESHOOTING GUIDE TROUBLESHOOTING GUIDE AUDIO SHAKES Is AUDIO HEAD scratched ? No TROUBLESHOOTING GUIDEIs input level at pin 85 of IC1002 about 0.4Vp-p? Yes Check AUDIO BLOCKTROUBLESHOOTING GUIDE TROUBLESHOOTING GUIDE Check pins 9 and 10 of IC1002 lines TROUBLESHOOTING GUIDEFF/REW DO NOT WORK ing atTROUBLESHOOTING GUIDE TROUBLESHOOTING GUIDE E-10 TROUBLESHOOTING GUIDEE-11 TROUBLESHOOTING GUIDEE-12 TROUBLESHOOTING GUIDEE-13 TROUBLESHOOTING GUIDEDoes COMPOSITEsignal appear at pin 52 of IC4001? TROUBLESHOOTING GUIDENO COLOR DURING PLAYBACK Yes Check Q4802 circuitE-15 TROUBLESHOOTING GUIDEE-16 TROUBLESHOOTING GUIDEE-17 TROUBLESHOOTING GUIDEE-18 TROUBLESHOOTING GUIDEE-19 TROUBLESHOOTING GUIDEE-20 TROUBLESHOOTING GUIDEE-21 TROUBLESHOOTING GUIDEE-22 TROUBLESHOOTING GUIDEE-23 TROUBLESHOOTING GUIDENO E-EAUDIO STEREO TROUBLESHOOTING GUIDEDoes audio appear Refer to section NO E-EE-25 TROUBLESHOOTING GUIDEDoes signal appear TROUBLESHOOTING GUIDENO TUNER AUDIO STEREO at pin 25 of IC6601 ?E-27 TROUBLESHOOTING GUIDEE-28 TROUBLESHOOTING GUIDEPin No IC DESCRIPTIONSPin Name DescriptionPin No IC DESCRIPTIONSPin Name DescriptionSERVO TIMING CHART SYSTEM SWITCH MODE DIODE SEMICONDUCTOR BASE CONNECTIONSTRANSISTOR 44PINY/C/AUDIO/HEAD AMP BLOCK DIAGRAM SYSTEM CONTROL/SERVO/TIMER BLOCK DIAGRAM Y/C/AUDIO HAED AMPTUNER/HIFI 21PIN/OSD/VPS NICAM TUNER/HIFI/21PIN/OSD/VPS/NICAM BLOCK DIAGRAM SERVO/TIMERSYSCON OPERATION BLOCK DIAGRAM POWER BLOCK DIAGRAMOPERATION 0RSQY RSQYPage OPERATION PRINTED CIRCUIT BOARDSDECK OPERATIONPRINTED CIRCUIT BOARDS SYSCON IC6601IC4001 PRINTED CIRCUIT BOARDS SYSCON Q1005Q1002 1005 PRINTED CIRCUIT BOARDS SYSCONQ1002 IC651Page Page 9aW7 gR7nag gQVSOiWQ RWOUdO 0gsgQ aQP1 efRc6UVSV dPURNeVP QVNTcN dkdP aPO0W488 lED 1F6bj6A9 VP2 SXheaPu hRWTbPjXR SXPVgPbPcdST RdccTRjXdc 1huhRdc eRQ2uYSP‘ X59B WAVEFORMS SYSCON/SERVO/TIMERY/C/AUDIO/HEAD AMP 1 RECL1-1 MECHANICAL EXPLODED VIEWMECHANICAL REPLACEMENT PARTS LIST ACCESSORY REPLACEMENT PARTS LISTL2-1 M1-1 CHASSIS EXPLODED VIEW TOP VIEWM1-2 CHASSIS EXPLODED VIEW BOTTOM VIEWM2-1 CHASSIS REPLACEMENT PARTS LISTSYSCON PCB ASSY ELECTRICAL REPLACEMENT PARTS LISTELECTRICAL REPLACEMENT PARTS LIST OPERATION 1 PCB ASSY ELECTRICAL REPLACEMENT PARTS LISTOPERATION 2 PCB ASSY AND OTHERS920074