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Aiwa HV-FX5100 service manual Troubleshooting Guide, E-25

Models: HV-FX5100

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E-25

TROUBLESHOOTING GUIDE

NO TUNER AUDIO (MONO)

Does audio appear	No
on E-E ?
Yes

Does AUDIO signal

Refer to section " NO E-E AUDIO (MONO) ".

appear at pin 38 of IC6601 ?

No

Check pin 21TU6001.

			Yes
	Does	AUDIO signal					No
	appear		at pins 1 and			2

	of IC6601 ?
			Yes

Does			AUDIO sign	al			No
appear			at pins 15
				and 18
of IC5501 ?
			Yes

Check J4501 and peripheral circuit.

Replace IC6601.

Replace IC5501.

E-25

Image 48

Aiwa HV-FX5100 service manual Troubleshooting Guide, E-25

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 C2-1PREVENTIVE CHECKS AND SERVICE INTERVALS CONFIRMATION OF USING HOURSC3-1 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 C6-1MECHANICAL ADJUSTMENTS 1. CONFIRMATION AND ADJUSTMENTD1-1 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 item3. MECHANISM ADJUSTMENT PARTS LOCATION GUIDE MECHANICAL ADJUSTMENTSD1-4 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 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 RSQY 0RSQYPage PRINTED CIRCUIT BOARDS OPERATIONDECK OPERATIONPRINTED CIRCUIT BOARDS SYSCON IC6601IC4001 PRINTED CIRCUIT BOARDS SYSCON Q1005Q1002 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 L1-1MECHANICAL REPLACEMENT PARTS LIST ACCESSORY REPLACEMENT PARTS LISTL2-1 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