HITACHI
| GP4B
| Int Green Picture.
| Check R149 And R150 Touching Each Other.
|
HITACHI
| VM1280
| No Tape Functions, (tape Stuck). Turns Off
| 9 Volt Reg Failure Ic 906
|
HITACHI
| VM2380
| Poor Colour From Camera Section.
| Located O/c Track B/t Lum Setup Pot (rm201 Pot 1) Pin 3 & Pin 13 On Ic202. Note: Some Versions Its Pin 6 On The Pot Array(rm201) That Goes To Pin 13 On Ichybrib 202. Reset Pederstal To 0%
|
HITACHI
| VM600
| Tape Stuck. No Functions audio Head Asy Jammed In Wrong Position, Jumped Out Of Main Cam
| Brakes In Reel Drive Sticking On. replace Brake Pads.
|
HITACHI
| VME16
| Drum Wont Run, Int. Or Runs Flat Out
| Connector B/t Drum Pg/fg To Main Board, Worn, Resolder
|
HITACHI
| VME16
| Wont Play. No Camera Image.
| Caps, Open Circuit Track To Dcdc In Camera, Cam 5v Should Be Low.
|
HITACHI
| VME23
| Capstan Motor
| New Capstan Motors Faulty..
|
HITACHI
| VME25
| No Image From Camera. Since New.
| Replace Sensor Pcb (ic1003 Hybrid). Adjust Sensor Drive Pulse & Sensor Sub Voltage Adj. See Pg 4-3 Camera Analogue Adjustment Only Needed, Unless Ccd Replaced.
|
HITACHI
| VME53
| Did Have Trouble In Evf. Blows Fuse (2 Amp), No Go, drum Not Getting Up To Speed, Or Wont Change Direction
| C654 10µ 16 V Electro Near Drum Servo Ic, Drum Fg
|
HITACHI
| VMH610
| No Camera Operation.
| Replace Lens Asy. Kq10432.
|
HITACHI
| VMH610
| No Image Or Power From Camera, Tape /playback Is Ok
| Camera Cpu No Clock Outputs To Camera. (ic Hd6433042toif (ck12261u) But You Need Really Small Smd Iron To Replace!!!
|
HITACHI
| VT11
| Colour Break Up Of Top Part Of Screen
| C257 (4.7 Mfd) D/j On Y/c Board.
|
HITACHI
| VT11
| Drum Motor Running Continuously.
| Change Both Q601 And D614. (may Check Ok But Is Faulty)
|
HITACHI
| VT11
| Fails To Operate When Cold.
| Replace Both Loading Belts
|
HITACHI
| VT11
| Int Capstan Speed Faulty After Play. 3 Hr Tape Twice.
| Change Clutch Assembly
|
HITACHI
| VT11
| Int Tracking And Sound.
| Replace Pinch Roller And Assembly.
|
HITACHI
| VT11
| Intermittent Stopping/tape Snagging.
| 1. Check Pinch Roller. 2. Check Clutch Assembly Intermittent Seizure (under Deck). Lubricate Shaft. Cures Fault.
|
HITACHI
| VT11
| Loads Up, Runs Ten Seconds Then Shuts Down.
| Change Worn Idler Mode Switch Incorrectly Set.
|
HITACHI
| VT11
| Machine Goes Ff When Rewind Has Been Selected.
| Look For Faulty Rewind Switch Reads 100 Ohms Which fools Sensors.
|
HITACHI
| VT11
| Machine Selecting A Mode Contrary To That Selected.
| Change D453 (leaky)
|
HITACHI
| VT11
| No Tape Functions. Fails To Operate When Cold.
| Replace Both Load Belts.
|
HITACHI
| VT11
| Operated Led Doesn't Come On When Button Pushed.
| Stop Switch Faulty. (connects Pin 23 Of Ic902 To Chassis)
|
HITACHI
| VT11
| Partly Laces Up Then Stops.
| Change Loading Motor And Belts.
|
HITACHI
| VT11
| Set Ejects Cass Too Fast.
| Change Hydraulic Clutch.
|
HITACHI
| VT11
| Take Up Spool Stopping
| Change Idler Assembly.
|
HITACHI
| VT120
| No Colour On Playback.
| Change Ic301 (ht4539b).
|
HITACHI
| VT128
| Int Stops. Int Chews Tapes.
| Capstan Motor Int. Low Torque.
|
HITACHI
| VT130
| Tuner Scans But Wont Lock Onto Station.
| Change Tuner/i.F. Module.
|
HITACHI
| VT14
| Int Loss Of Sound In E-e
| Change Audio Defeat Ic721 (located On Programme Board)
|
HITACHI
| VT14
| Poor Picture In Ee Mode.
| Replace C859 470mfd.
|
HITACHI
| VT14
| When Switched On For Timed Recordings Set Goes Into Record.
| Change Ic904 (hd38702a25) If Still Faulty Check Ic101 And Ic102.
|
HITACHI
| VT14
| When Tuned In Through Video Very Poor Picture.
| Check C859 (470 Mfd ) 6.3v
|
HITACHI
| VT148
| Won't Accept Tape, No Functions.
| Stk5372 In Power Supply Faulty.
|
HITACHI
| VT17
| Poor Frame Advance, Chewing Tapes,
| Contamination Of Capstan Bearings Due To Not Being Sealed Properly. Possible Effects Are Chewed Tapes, Poor Frame Advance and/or A Loop Of Tape Left Hanging From Cassette.
|
HITACHI
| VT19
| Counter Display Clears Itself When F.F/rewind Selected.
| Change Ic2010 (hd38805a27)
|
HITACHI
| VT19
| Int Chews Tapes, Int Stops.
| Int Capstan Drive. Dj On Ph1151 Offpin2 Of Ic1151 On Servo/reg Pcb.
|
HITACHI
| VT19
| Int Stops, Int Display.
| No 10v, Q1795 Faulty.
|
HITACHI
| VT19
| Play Mode, Sp Cass Is Inserted, Swit. To Lp, Wont Switch Sp
| Change Ic908 (ha11768)
|
HITACHI
| VT19
| See Vt17
|
|
HITACHI
| VT19
| Set Int. Resets Itself, Wont Manually Reset.
| Hitachi Mod, Change Q1795 (p/s Back Up Board) To 2sd468/2sd8822. Also Replace Wire Link K1788 (between Pin 5 Of Rc1795 And The 10v Line) With A Diode (type 1s2076, 1s2473 Or 1ss133, Anode To Pin 5, And Decouple Pin 5 With An 0.22uf Capacitor Add Between
|
HITACHI
| VT19
| Sound Instability
| Change Relay With Hitachi Updated Version, Do Following Mods. Change Resistors R462l And R462r From 2.2 K Ohm To 680 Ohm And Add Diodes (type 1s2076 Or 1ss133 Or Equivalent) Between These Resistors (ic405 End) And The Bases Of The Transistors. These Modi
|
HITACHI
| VT20
| Snowy Pic, Looks Like Heads Faulty, When Cold.
| C1159 (100µf/25v)
|
HITACHI
| VT220
| See Vt120.
|
|
HITACHI
| VT33
| Cass. Loads But Wont Lace Up.
| Change Ic902 (m54543l) (located On Syscon Board)
|
HITACHI
| VT33
| Eratic Operation Of Vtr Function Buttons.
| Buttons Hr. Replace.
|
HITACHI
| VT33
| Int Loads By Itself. Int Ejects.
| D907 On Main Pcb (dan201)
|
HITACHI
| VT33
| Int Loss Of Colour.
| Check Ic203 (ht 4239) If 9volt Has Dropped To 5 Volt L215 O/c. Also Check Q217/q358.
|
HITACHI
| VT33
| Int Stops In Play/rec.
| Idler Clutch Assy Sticking, Replace
|
HITACHI
| VT33
| Interm. Or Hot. Colour On P/back Flickers To B & W.
| Check For Heat Sensitive R638, 12k Ohm, Near Ic 603.
|
HITACHI
| VT33
| Loads Then Unloads.
| Check Loading Gears Out Of Alignment (link Pin 1 And 4 To Service Machine Without A Cassette). Check The Arrows All Line Up With The Carriage In The Up Position.
|
HITACHI
| VT33
| Looks Like Video Heads Faulty.
| Check Pin 12 Of Ic202 (ht4328) If Ok Look For Missing Timing Pulses.
|
HITACHI
| VT33
| Machine Wont Work, Loading Mechanisim Stiff.
| Check Loading Motor Close To Seizure, Clean And Lubricate.
|
HITACHI
| VT33
| No Operation
| Regulator Ic 151 Stk5421
|
HITACHI
| VT33
| No Rewind Of Picture Search.
| Check Wires To End Sensor (q141) Are Soldered Into Cassette Loading Motor Board.
|
HITACHI
| VT33
| No Rewind Or Review.
| Check That Wires To End Sensor (q14) Are Soldered Onto Cassette Loading Motor Board.
|
HITACHI
| VT33
| No Tape Functions. Loading Mechanisim Stiff Or Jamming.
| Check To See If Load Motor Is Near Seized.
|
HITACHI
| VT33
| Not Detecting Start Or End Of Tape.
| D141. End Lamp. Ptno. 7091416
|
HITACHI
| VT33
| Not Loading Correctly.
| Check Broken Teeth On Cog In Loading Mechanism.
|
HITACHI
| VT33
| Own Rec., I Cm Bar Going Up Pic.,rolling And Snowy Picture.
| Change C859 470mfd 6.3v (near O/c)
|
HITACHI
| VT33
| Set Won't Play Or Record When Hot.
| Change Stk5421 In Servo Supply.
|
HITACHI
| VT33
| Set Works In All Modes Except F.F.
| Change Capstan Drive I.C. (m545484). Check Under Pg112 For Solder Shorts.
|
HITACHI
| VT33
| Slow Or No Rewind Or F.F. Chewing Tapes.
| Replace Reel Idler Pulley.
|
HITACHI
| VT33
| Turns Off After 5 Secs, Tape "in" Light On. No Tape In Vcr
| No 9.5v, Stk5421 In Psu U/s.
|
HITACHI
| VT33
| Won't Turn On Or Int Stops.
| Regulator Ic Stk4521 U/s.
|
HITACHI
| VT39EM
| Low Sound Of Own Recording And E-e Sound.
| Ic803 (aa313) Faulty.
|
HITACHI
| VT410
| Set Loads Up Then Stops. No Deck Functions.
| Change Ic902 (ba6209u2) (loading Motor I.C.) If Pin 8 And 9 Of Ic901 Are O Volts And 4.7 Respectively.
|
HITACHI
| VT410
| Set Wont Accept Tapes.
| Check Ribbon Connector Is In Correct Position On Main Pcb.
|
HITACHI
| VT4100
| Operate Button Fails To Light When Button Is Pushed.
| Change Stop Switch Which Earths Pin 23 Of Ic902.
|
HITACHI
| VT418
| Won't Accept Cassette.
| Check Outputs Of Power Regulator Ic851, Stk5372.
|
HITACHI
| VT428
| Int Stops, Int Or Won't Accept Tapes.
| Int 5v Rail, Stk5372 Faulty.
|
HITACHI
| VT498
| Shuts Down In Ff Or Rewind,
| Take Memory Off Counter
|
HITACHI
| VT5000
| In Playback Mode, Running Twice Normal Speed,no Pause.
| Change Ic504
|
HITACHI
| VT5000
| Int Variations In Speed With Playback And Record.
| Change And/or Check Position Of After Load Switch S931.
|
HITACHI
| VT5000
| Int Wowing On Sound With Horiz. White Bars, Dimming Clock.
| Check 12 Volt Regulator Around R662 For D/j's
|
HITACHI
| VT5000
| No Clock Display.
| Change Ic701 If Hot And Ic101
|
HITACHI
| VT5000
| Record Button Rejects When A Timed Recording Starts.
| Look For Broken Sensor Lead Under Pinch Roller Arm.
|
HITACHI
| VT5000
| Wont Release From Pause Mode, Going To Stop After Few Sec.
| Change And/or Check Position Of After Load Switch S931.
|
HITACHI
| VT518
| Plays At Half Speed. Noise Bar Across Screen.
| Audio/ctrl Head Stack Dirty. No Control Track Pulse.
|
HITACHI
| VT528
| No Play Functions. Tape 1/4" Higher Than It Should Be.
| Replace R.H. Side Plate Of Front Loading Mechanisim.
|
HITACHI
| VT548
| Hum Noise If Connected To Hi-fi Amplifier.
| Change C641, 642, From 10µ To 47µ. On Mas Pcb.
|
HITACHI
| VT548
| No Play Functions. Tape 1/4" Higher Than It Should Be.
| Replace R.H. Side Plate Of Front Loading Mechanism.
|
HITACHI
| VT5500
| No Clock Display.
| Change Clock Ic First. Check If 6v Line Which Supplies Q703 Missing, R954 O/c In P/s.
|
HITACHI
| VT57
| Capstan Motor Int Stops.
| Check For D/j's On Posistor Ph1151, Or Motor Drive (ic1151) Faulty.
|
HITACHI
| VT57
| Interm. Stops In Play Rec. Modes. Capstan Interm. Stops.
| Check For Dry Solder Joins On Posistor Ph1521 And Motor Drive Ic1151.
|
HITACHI
| VT57
| See Vt17
|
|
HITACHI
| VT63
| After First Switch On Will Accept Tape Then Ejects.
| Check For Dry Solder Joins On Posistor Ph11521 And Motor Drive Ic1151.
|
HITACHI
| VT63
| Fluor Display Has Some Blacked Out Figures.
| Change Ic101 (m50757-681sp).
|
HITACHI
| VT63
| Loads Up Then Stops.
| Check For Loss Of 12volt Supply Because Ic151 (stk5451) Reg. Faulty. * Check Capstan For Scoring Lubricate Before Replacing In Set.
|
HITACHI
| VT63
| Machine Produces A Squeaking Noise In F.F. Or Rewind.
| Remove Bar At Base Of Capstan And Lubricate Or Change With Modified Type From Hitachi.
|
HITACHI
| VT63
| When Switched On Set Loads Up, Ejects, Wont Accept Tape.
| Check For Faulty Tape Sensors, Measure Voltages At Pins 6 And 7 Of Pg904 With No Tape In Machine If Less Than 9.5v, Change Both Sensors Part Nos. Are 5381681 And 5381682 Which Make A Set.
|
HITACHI
| VT63
| Won't Accept Tape, Partially Loads Carriage With No Tape In
| Supply Side End Sensor.
|
HITACHI
| VT64
| After First Switch On Accepts Tape Then Ejects.
| Check End Of Tape Sensors.
|
HITACHI
| VT64
| See Vt63
|
|
HITACHI
| VT640
| Clock Flashes Bright Then Dull, Picture Fuzzy, Jagged Lines At The Same Time. In Ee, Rf Out And Video Out.
| Change C715 (100uf/25v) On Pcb Board At Front Right Hand Side Of Machine, Behind Clock Pcb.
|
HITACHI
| VT640
| Drum Stops Intermittently
| Dry Joint R699 Or Q605
|
HITACHI
| VT640
| Picture Noise After 30 Mins.
| Readjust Servo Assist Circuit As Per Manual.
|
HITACHI
| VT640
| Tape Loads Then Unloads In Carriage
| Replace Both End Sensors
|
HITACHI
| VT640
| Won't Accept Tape, Partially Loads Carriage With No Tape In
| Supply Side End Sensor Faulty.
|
HITACHI
| VT65
| After First Switch On Accepts Tape Then Ejects.
| Check End Of Tape Sensors.
|
HITACHI
| VT65
| See Vt63
|
|
HITACHI
| VT6500
| No Reel Motor Drive.
| Suspect Ic 901, Ta4310, Mounted On Reel Motor Driver Pcb On Underside Of Chassis Next To Reel Motor. P.No. 5358861.
|
HITACHI
| VT6500
| Switches Off By Itself Intermittently.
| Resolder Operation Pcb Clean On/off Functions Switch.
|
HITACHI
| VT6500
| Wont Switch On.
| Replace Int. Power Switch.
|
HITACHI
| VT7E
| No Clock Display, Sometimes Shows L-01 Or Similar On Display, Portapack Also Wont Turn On.
| Ic 4011 On Vs Board
|
HITACHI
| VT8000
| Absence Of E-e Sound And Video With Normal Test Signal.
| Look For 12v Line If Missing Zd053 Goes S/c.
|
HITACHI
| VT8000
| Colour Drops Out Or No Colour At Top Of Picture.
| Change Q225 (2sc2021).
|
HITACHI
| VT8000
| Faulty Tracking Creasing Tapes
| Check Impedance Roller Is At Right Height (next To Full Erase Head).
|
HITACHI
| VT8000
| Int Colour.
| Change Ic203 (ht4209) On Lum / chroma. Board.
|
HITACHI
| VT8000
| Int F.F. Or Rewind.
| Change Reel Motor.
|
HITACHI
| VT8000
| Int Loss Of Sound And Signal.
| Check I.F. Module For D/j's At Junction Of The Copper Track And Tabs On Screening Wall.
|
HITACHI
| VT8000
| Int Stops In Play, Rec. F.F. Or Rew. Unlaces In Rec, Play
| Check Operation Of After Load Switch By Looking For The Loading Poles Going Fully Home. If Belts Are Not Slipping Check For No Drum Tacho Pulses To The Mechanon Board.
|
HITACHI
| VT8000
| Int Tape Tangling On Rewind.
| Check And Clean Take Up Brake, Check Brake Arms Are Free To Operate.
|
HITACHI
| VT8000
| Int Vision In Record And E-e
| Look For D/j In Earthing Of I.F. Module.
|
HITACHI
| VT8000
| Loads Up Then Switches Off.
| Change Ic901 (hd44801a05).
|
HITACHI
| VT8000
| Modulator Not Working.
| Check Voltage Supply To Q1, Q2, Q6.
|
HITACHI
| VT8000
| No Functions After Smoke Coming From Set.
| Check Both Drum Motor I.C. 's Burnt. Check Q513 O/c B/e.
|
HITACHI
| VT8000
| No Functions With Operate Led Out.
| Look For R054 1.5k Ohm O/c, This Biases Regulator Q053.
|
HITACHI
| VT8000
| Pause Control No Effect In Record Mode.
| Check Loading Switch Spring In Position Or Missing.
|
HITACHI
| VT8000
| Rapid Eject.
| Change Nylon Cog In Eject Damping Mechanism.
|
HITACHI
| VT8000
| Remote Wont Change Channel, Must Have Cass Inserted To Fun.
| Check If Cc112 O/c On Timer Board.
|
HITACHI
| VT8000
| Suspect Modulator.
| Check Series Choke, Also Transformer T2 For O/c.
|
HITACHI
| VT8000
| When Play Is Selected Capstan Motor Runs At Irregular Spee.
| Check 9 Volt Supply At Pg502/6 And 12 Volt Supply At Pg502/7 If Low R054 On Syscon Board High Or O/c.
|
HITACHI
| VT8000
| Wont Go Into F.F. Every Thing Else Ok.
| Change Ic906 (ta4193)
|
HITACHI
| VT8000
| Wont Load Or Unload.
| Check R081 (2.2 Ohm) On Syscon Board O/c. Replace With Posistor Ptmar2r2m, If Still Faulty Check Reel Motors And Ic901 (hd44801a-05).
|
HITACHI
| VT8000
| Wont Record. No E-e. No Functions. No Operate Light.
| Check R069 And/or R054 Both 1.5kohm For O/c. Check Also Do55 For S/c.
|
HITACHI
| VT8000
| Wont Turn On When Oper. Switch Is Pressed,will In Timer Mod
| Check 5.1v Zener Diode In Switch On Network (located On Pin 41 Of Ic901)
|
HITACHI
| VT8000
| Wont Unlace Cass.
| Check Loading Motor Trans Q902 (2sc1162wt) O/c, R081 (2.2 Ohm) O/c.If 650mv On Base Of Q902, Change Reel Motor.
|
HITACHI
| VT8300
| Int Vision In Record And E-e
| Look For D/j's In Earthing Of I.F. Module.
|
HITACHI
| VT8300
| Machine Wont Work. Stop Light Flashing.
| Cass Lamp O/c.
|
HITACHI
| VT8300
| Only Partly Functioning.
| Check Q942 9v Supply Is Missing Because R987 1k Ohm O/c.
|
HITACHI
| VT8300
| Squeaking And Distorting On Sound.
| Check Audio Control Head.
|
HITACHI
| VT8300
| When In Play Selected Set Unlaces, Pinch Roller Wont Engage
| Check Loading Belt If Ok Check Pin 29 Of Ic901 Should Change, If Not Mode Switch.
|
HITACHI
| VT8500
| See Vt8000
|
|
HITACHI
| VT86
| See Vt17
|
|
HITACHI
| VT8700
| Cass Lamp Not Working.
| Check R653 (220 Ohm) O/c In Series With Lamp.
|
HITACHI
| VT8700
| Int Tuner/i.F. Signal
| Look For D/j's On I.F. Earthing If Q851 Collector Floating.
|
HITACHI
| VT8700
| No Sound Or Picture In E-e
| I.F. Module Faulty Earthing.
|
HITACHI
| VT88
| Poor Frame Advance, Chewing Tapes,
| Contamination Of Capstan Bearings Due To Not Being Sealed Properly. Possible Effects Are Chewed Tapes, Poor Frame Advance and/or A Loop Of Tape Left Hanging From Cassette.
|
HITACHI
| VT88
| See Vt17
|
|
HITACHI
| VT88
| Wont Eject Properly, When Ejected, It Immediately Goes Back.
| Change Complete Cassette Housing.
|
HITACHI
| VT9000
| Int Sound On E-e And Play Mode.
| Check D/j's On Relays And C429.
|
HITACHI
| VT9000
| No Sound Or Picture In E-e
| I.F. Module Faulty Earthing.
|
HITACHI
| VT9000
| Squealing Noise In Playback Then Stops. Runs Slow
| Change Capstan Motor. 5577324.
|
HITACHI
| VT9300
| Not Playing Tape. Capstan Motor Not Functioning.
| Dismantle Capstan Motor And Overhaul Or Replace.
|
HITACHI
| VT9500
| Failure To Record.
| Change Ic201 If Signal Level At Pin 25 Low Should Be 4v P-p.
|
HITACHI
| VT9500
| No Capstan Motor Rotation.
| Seized Capstan Motor (top) Bearing, Lubricate Usually Fixes.
|
HITACHI
| VT9500
| No Sound Or Vision In E-e
| Change Ic909 (ta4349)
|
HITACHI
| VT9500
| Wont Lock Drum In Record And Int In Pb. Ee May Also Drop
| Stk5720 Voltage Regulator On Power Supply Pcb. Failing. 9volt Rail Varies
|
HITACHI
| VT9700
| Counter & Oper. Light Flash, After 5 Min. Operat. Clock Ok.
| Check 9 Volt Regulator If Intermittent.
|
HITACHI
| VT9700
| Intermittently Runs Slow.
| Change C506, Check Capstan Motor For Seizing.
|
HITACHI
| VT9700
| Runs Slow Intermittently
| Capstan Motor Internal Short.
|
HITACHI
| VTM728
| Wont Always Load Tape. No Tape Functions
| Capstan Bearing, Clean And Lube
|
HITACHI
| VTS895
| Trouble With Tracking.Esp.Pause!
| Load/mode Block Assembly.As Guides May Not Be Fully Locked.
|
