HITACHI |
ALL MODELS |
Refer To Technical Service Information Book. |
|
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 Posistion, Jumped Out Of Main Cam |
Brakes In Reel Drive Sticking On. repalce 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 Circut 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 Hybrib). 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 Realy 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 Siezure (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 Dosent Come On When Button Pushed. |
Stop Switch Faulty. (connects Pin 23 Of Ic902 To Chasis) |
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) (locaated 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 Opertaion |
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/chrom. 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 Mechanisim. |
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 Immediatly 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 Alwasy 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. |