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Aiwa HV-FX5100 service manual Troubleshooting Guide, E-21

Models: HV-FX5100

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TROUBLESHOOTING GUIDE

RECORDING MECHANISM WORKS,BUT NO VIDEO RECORDED FROM INPUT JACK OR TUNER

	Does VIDEO signal					No
	appear at pin 31 of					No
	appear at pin 31 of
	IC4001 ?
			Yes
						No
Does		the VIDEO signal				No
Does		the VIDEO signal
appear		at pin 52 of
				IC40	01 ?
				IC40	01 ?

			Yes
			Yes

Check CYLINDER UNIT .

Check the circuit from VIDEO input jack to IC4001, from Tuner Pack to IC4001.

Replace IC4001.

E-21

Page 44

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Aiwa HV-FX5100 service manual Troubleshooting Guide, E-21

Contents

S/M Code No. 09-996-332-2N1 VIDEO CASSETTE RECORDERBASIC TAPE MECHANISM OVD-6 SPECIFICATIONSTABLE OF CONTENTS SERVICING NOTICES ON CHECKING IMPORTANT NOTICE4.PERFORM A SAFETY CHECK AFTER SERVICING 1.KEEP THE NOTICESDISASSEMBLY INSTRUCTIONS 1.REMOVAL OF MECHANICAL PARTS AND P.C. BOARDS1-2 FLAP Refer to Fig 1-3 DECK CHASSIS Refer to Fig2. REMOVAL OF DECK PARTS DISASSEMBLY INSTRUCTIONS2-1 TOP BRACKET Refer to Fig 2-3 TAPE GUIDE L Refer to Fig. 2-3-ADISASSEMBLY INSTRUCTIONS 2-6 LINK ASSY Refer to Fig2-9 TENSION ASSY Refer to Fig. 2-9-A 2-7 LOADING MOTOR ASSY Refer to FigDISASSEMBLY INSTRUCTIONS Refer to MECHANICAL ADJUSTMENT2-11 S REEL/T REEL ASSY Refer to Fig 2-13 A/C HEAD Refer to Fig. 2-13-ADISASSEMBLY INSTRUCTIONS 2-15 AHC ASSY/CYLINDER UNIT ASSY Refer to Fig2-16 CAPSTAN DD UNIT Refer to Fig 2-17 MIDDLE GEAR/MAIN CAM Refer to Fig. 2-17-ADISASSEMBLY INSTRUCTIONS 2-19 LOADING GEAR S/T ASSY Refer to Fig. 2-19-A2-20 INCLINED S/T ASSY Refer to Fig B2-5KEY TO ABBREVIATIONS H.SWAFT DET A.PBKEY TO ABBREVIATIONS SYNCSYNC SEP TRACSERVICE MODE LIST MethodOperations C2-1C3-1 PREVENTIVE CHECKS AND SERVICE INTERVALSCONFIRMATION OF USING HOURS CLEANING PREVENTIVE CHECKS AND SERVICE INTERVALS1. AUDIO CONTROL HEAD 2. TAPE RUNNING SYSTEMNOTE FOR THE REPLACING OF MEMORY IC C4-1SERVICING FIXTURES AND TOOLS PREPARATION FOR SERVICINGHow to use the Servicing Fixture RemarksVCR TEST TAPE INTERCHANGEABILITY TABLE C6-1D1-1 MECHANICAL ADJUSTMENTS1. CONFIRMATION AND ADJUSTMENT MECHANICAL ADJUSTMENTS Refer to the ELECTRICAL ADJUSTMENTS1-4 CONFIRMATION OF VSR TORQUE 1-5 CONFIRMATION OF REEL BRAKE TORQUEMECHANICAL ADJUSTMENTS 2-3 TAPE RUNNING ADJUSTMENT X VALUE ADJUSTMENTRefer to SERVICING FIXTURE AND TOOLS Refer to itemD1-4 3. MECHANISM ADJUSTMENT PARTS LOCATION GUIDEMECHANICAL ADJUSTMENTS ELECTRICAL ADJUSTMENTS 1. BASIC ADJUSTMENT1-1 PG SHIFTER CONDITIONS INSTRUCTIONS2. ELECTRICAL ADJUSTMENT PARTS LOCATION GUIDE SYSCON PCBELECTRICAL ADJUSTMENTS D2-2TROUBLESHOOTING GUIDE TROUBLESHOOTING GUIDE TROUBLESHOOTING GUIDE TROUBLESHOOTING GUIDE AUDIO SHAKES Is AUDIO HEAD scratched ? NoIs input level at pin 85 of IC1002 about 0.4Vp-p? Yes Check AUDIO BLOCKTROUBLESHOOTING GUIDE TROUBLESHOOTING GUIDE TROUBLESHOOTING GUIDE Check pins 9 and 10 of IC1002 linesFF/REW DO NOT WORK ing atTROUBLESHOOTING GUIDE TROUBLESHOOTING GUIDE TROUBLESHOOTING GUIDE E-10TROUBLESHOOTING GUIDE E-11TROUBLESHOOTING GUIDE E-12TROUBLESHOOTING GUIDE E-13TROUBLESHOOTING GUIDE Does COMPOSITEsignal appear at pin 52 of IC4001?NO COLOR DURING PLAYBACK Yes Check Q4802 circuitTROUBLESHOOTING GUIDE E-15TROUBLESHOOTING GUIDE E-16TROUBLESHOOTING GUIDE E-17TROUBLESHOOTING GUIDE E-18TROUBLESHOOTING GUIDE E-19TROUBLESHOOTING GUIDE E-20TROUBLESHOOTING GUIDE E-21TROUBLESHOOTING GUIDE E-22TROUBLESHOOTING GUIDE E-23TROUBLESHOOTING GUIDE NO E-EAUDIO STEREODoes audio appear Refer to section NO E-ETROUBLESHOOTING GUIDE E-25TROUBLESHOOTING GUIDE Does signal appearNO TUNER AUDIO STEREO at pin 25 of IC6601 ?TROUBLESHOOTING GUIDE E-27TROUBLESHOOTING GUIDE E-28IC DESCRIPTIONS Pin NoPin Name DescriptionIC DESCRIPTIONS Pin NoPin Name DescriptionSERVO TIMING CHART SYSTEM SWITCH MODE SEMICONDUCTOR BASE CONNECTIONS DIODETRANSISTOR 44PINY/C/AUDIO/HEAD AMP BLOCK DIAGRAM TUNER/HIFI 21PIN/OSD/VPS NICAM SYSTEM CONTROL/SERVO/TIMER BLOCK DIAGRAMY/C/AUDIO HAED AMP SYSCON TUNER/HIFI/21PIN/OSD/VPS/NICAM BLOCK DIAGRAMSERVO/TIMER OPERATION OPERATION BLOCK DIAGRAMPOWER BLOCK DIAGRAM RSQY 0RSQYPage PRINTED CIRCUIT BOARDS OPERATIONDECK OPERATIONIC4001 PRINTED CIRCUIT BOARDS SYSCONIC6601 Q1002 PRINTED CIRCUIT BOARDS SYSCONQ1005 PRINTED CIRCUIT BOARDS SYSCON 1005Q1002 IC651Page Page 9aW7 gR7nag gQVSOiWQ RWOUdO 0gsgQ aQP1 dkdP aPO0 efRc6UVSV dPURNeVP QVNTcNW488 SXheaPu hRWTbPjXR SXPVgPb lED 1F6bj6A9 VP2PcdST RdccTRjXdc 1huhRdc eRQ2uYSP‘ X59B SYSCON/SERVO/TIMER WAVEFORMSY/C/AUDIO/HEAD AMP 1 RECMECHANICAL EXPLODED VIEW L1-1L2-1 MECHANICAL REPLACEMENT PARTS LISTACCESSORY REPLACEMENT PARTS LIST CHASSIS EXPLODED VIEW TOP VIEW M1-1CHASSIS EXPLODED VIEW BOTTOM VIEW M1-2CHASSIS REPLACEMENT PARTS LIST M2-1ELECTRICAL REPLACEMENT PARTS LIST SYSCON PCB ASSYELECTRICAL REPLACEMENT PARTS LIST ELECTRICAL REPLACEMENT PARTS LIST OPERATION 1 PCB ASSYOPERATION 2 PCB ASSY AND OTHERS920074