HMV |
HV1000 |
See Jvc Hr3300 |
|
HMV |
HV2000 |
See Jvc Hr3330 |
|
HMV |
HV3000 |
See Jvc Hr3660 |
|
HMV |
HV4000 |
See Jvc Hr7200 |
|
HMV |
HV7000 |
See Jvc Hr7700 |
|
HMV |
HV8000 |
See Jvc Hr7650 |
|
JVC |
AAV2EA |
Not Charging Properly.Power Out Ok |
Thermalfuse Tf4 Possibly Blown Replace Q7 As Well (unable To Seperate Tf4 And Q7 Due To Glue) |
JVC |
GR303 |
Int Function, Eg Not Recording Signal. |
6 Pin Connector (cn5) Bn/t Servo And Syscon Pcb (behind Vcr) Connections On Pcb Are Dry Jointed Or Broken, Very Bad Design |
JVC |
GR65 |
Looks Like Dirty/ Faulty Heads. Picture Has Snow In 2nd Frame |
Repair Faulty Connection Between Video Preamp And Video Drum Asy |
JVC |
GRC1 |
Int Audio Recording, No Playback Tracking. |
Check Wire Frome Erase Head Shorting To Servo Panel. Also D/j In Osc Cct. |
JVC |
GRC1 |
Noise Bars On Screen, No Capstan Servo Lock. |
Change C113 (10 Mfd Tantulum) Near Ic104. Change C109 Also (on Audio Servo Board). |
JVC |
GRC1 |
Scraping Noise At One Second Intervals. |
Capstan Flywheel Rubbing. |
JVC |
GRC1 |
Wont Record. |
Faulty Record Inhibit Switch. |
JVC |
GRC2 |
Int Sound On Record. |
Faulty Microphone. |
JVC |
GRC2 |
Noise Bars On Screen, No Capstan Servo Lock. |
Change C113 10 Mfd Tattalum, C109 (on Audio Servo Board). |
JVC |
GRC2 |
Relay Wont Energise Properly. |
Change Q22 (2sd601). |
JVC |
GRC2 |
Viewfinder Record Indicator Not Working. |
Change C11 (1mfd Tantalum) O/c On Ic4 Pin 7. |
JVC |
GRC45 |
Dont Repair. No Colour In Playback/ Camera |
Parts Not Available |
JVC |
GRC7 |
Looks Like Dirty Heads (drum Going Too Fast) |
Check Pin 6 Of Ic103 (servo Board) For Good Fg Signal If So Check Output (pin 7 ) If Low Change Ic103. |
JVC |
GRC7 |
No Threading, It Will Try, Then Shut Down, Lights Flash. |
Check For Screws Floating Around In Loading Mech.(give A Good Shake). |
JVC |
GRC7 |
Unit Turns Off In Play/record. Pause Led Flashs |
No Drum Pg. Check R218. May Bebroken Off Pcb. If So Resolder And Modify Case ... |
JVC |
GYN70 |
No Colour. |
X701 Faulty. (take Care In Removing) |
JVC |
GYN70 |
No Picture. |
Cp601 O/c & Q602 2sd781 Leaky. (180 Ma Normal Current Through Cp601). |
JVC |
GZ53 |
Dark Picture, Pink & Purple Overlay. |
C5 10 Mfd Tatalum O/c. |
JVC |
GZ55 |
See Gz53 |
|
JVC |
HR2200 |
Drum Motor Running At Full Speed While Power Is On. |
Change .022 (c2) On Motor Drive Amp Board. |
JVC |
HR2200 |
Drum Not Spinning Or Stops While Playing. |
Replace C58 (10uf 16v) Cap On Audio/cpu Pcb. |
JVC |
HR2200 |
Goes Into Alarm Mode (led's On Front Panel Chase On Pwr Up) |
Replace Tape Sensor. |
JVC |
HR2200 |
Goes Into Alarm Mode When Switched On. |
Change Upd553c-066 To Upd553c-159 (not Susceptable To Static Interference) |
JVC |
HR2200 |
Int Goes Into Pause Mode,perm Rew When Switched On. . |
Check If C11 (3.3f) Memory Capacitor Has Spewed Out On Cct Board. |
JVC |
HR2200 |
No Picture In Playback. Chewing Tapes. |
Solder 1k Ohm Resistor Between Pins 2 And 41 On Cpu On Audio/cpu Pcb And Remove Glue Under C1080c2 Next To Plug 2012205 Servo Board. |
JVC |
HR2200 |
When Play Is Selected Head Drum Rotates Abnormally Fast. |
Check For D/j's On Motor Drive Board Terminals (11/12/21/22). Pass On F.G. Signal. |
JVC |
HR2200 |
When Recording Horiz Lines App. After 2 Sec. Then Ok. |
Check Pinch Roller Dosent Move More Than 1.5mm In Pause, Record Away From Capstan And Is Free To Move. If Ok Adjust Edit 1 and Edit 2 Presets On Front Panel (near Camer Sockets). Adj Procedure; start With Both Presets Mid Range The Adjust Either Onr By |
JVC |
HR2650 |
No Colour On Playback. |
Check Tp322 For 9v If Low Q133 Faulty. |
JVC |
HR2650 |
Wont Play. |
Check For Faulty Reel Sensors. Pin 1 Of Con 3 On Front Panel For Reel Pulses. |
JVC |
HR3300 |
Black Picture In Ee |
Aux/tv Switch Int |
JVC |
HR3300 |
Negative Colour Picture With Hum On Sound. |
Check Convertor If Ok Adjust R37 On V.C. Board. Adjust Converter By Removing Can And Adjusting Preset Away From Small Coil Can. |
JVC |
HR3300 |
Prerecorded Tapes Produce No Colour Units Own Rec. Ok. |
Suspect R249 Adj, If Ok Change Ic204 (an236) And Ic202 (an305) In That Order. |
JVC |
HR3300 |
Stops In Play Or Rec. Drum Speed Too Fast. |
Change Ican318 (servo Board) |
JVC |
HR3300 |
Stops In Play. Drum Too Fast.. |
An318 Servo Ic |
JVC |
HR3660 |
Drum Speed Varies After 1 To 2 Hours Of Play. |
Check For D/j's On Servo Board Around (ba814 Ic ) |
JVC |
HR3660 |
Int No Colour In Play Or Record. |
Change Ic202 (an305) And Reset R216 (converter Balance), R335 A.C.C. After Changing Ic202. |
JVC |
HR3660 |
Pic Int Breaks Up In Play,for 2 Sec. Periods Noise On Sound |
Check For More Than .6v P-p Ripple Across Motor, If So It Is Faulty. Check By Resetting Capstan Sampling R106 And R109. |
JVC |
HR3660 |
Recordings Have White Smearing With Thin Black Lines. |
Faulty F.M. Modulator. |
JVC |
HR7200 |
Audio Fades In Ee(10 Sec) |
Pcb Track B/t D2,r14 Leaky. (audio Pcb) |
JVC |
HR7200 |
Capstan Runs Fast |
No Capstan Fg Pulse. Check For Cracked Pcb Near Fg Connector On Servo Pcb. |
JVC |
HR7200 |
Cass Lamp Fails To Light. |
Q1 Faulty. |
JVC |
HR7200 |
Cass. Inserted, Slow Rewind Then Stop. Alarm Lights Flash |
Check Worn Loading Motor. |
JVC |
HR7200 |
Cass. Sensor Lamp No Go When Cass Down Switch Is Depressed. |
Sensor Lamp Measures O.K.? Check For Faulty Q1, 2sb843, Mounted On The Deck Terminal Pcb That The Sensor Lamp Plugs Into. |
JVC |
HR7200 |
Changing Channels Set Would Drift Off Tune. |
Check An5111 I.F. Chip By Replacement. |
JVC |
HR7200 |
Drum And Capstan Motors Running When Switched On |
Loading Switches Sticking (old Grease) |
JVC |
HR7200 |
Drum Or Capstan Motor Fails To Operate. |
Check Motor Drive Amplifier Board For D/j's (q236 Suspect). Check Q5 And D14 Faulty On P/s Board. |
JVC |
HR7200 |
Drum Spins No Loading Functions |
10 V Reg On Mech Control Faulty. |
JVC |
HR7200 |
E.E. Signals With No Deck Functions. |
Check Ic2 On Mechacon Board Possibly Permanently Re-set Because Of Ic3 If So Check D21 For O/c. |
JVC |
HR7200 |
Eject Function Wont Function Correctly. |
Clean Or Replace Al And Ul Switch Assy. |
JVC |
HR7200 |
Excessively Fast Search. |
Check Q16, C/e Leaky, Check Also D15,16,17, And Q2. |
JVC |
HR7200 |
Failure To Record. |
Check D208 (leaky) |
JVC |
HR7200 |
Horizontal Spots On Pic In Play Mode. |
Check The Spring Which Earths Video Preamplifier. Check Flywheel For Chaffing Against Screened Cable. |
JVC |
HR7200 |
Int Failure To Play. |
Check For Reset Pulse, If None Check Ic3 Or D21 For O/c. Check Loading Belt Also. |
JVC |
HR7200 |
Int Loss Of Drum Servo Lock In Search. |
Check For Craked Board In Servo Panel By Cn302. |
JVC |
HR7200 |
Loads Then Unloads And Switches Off. |
Check Q216 (2sd880), Ic204, Ic1 (vc1029). |
JVC |
HR7200 |
Loads Up Then Unloads. Pinch Roller Not Engaging |
Loading Belt Or Misaligned Loading Mechon |
JVC |
HR7200 |
Loses Colour On Playback When Warmed Up. |
Check With Hairdryer C415 (1200pf) L407 ( 5.6 Uh) C441 (..012 Mfd), C440 (1 Mfd), Ic402 (an6362). |
JVC |
HR7200 |
Low Loading Motor Torque. |
Change Q8 (2sc1983) To (2sc1826) And D3 To 13v Zener. |
JVC |
HR7200 |
No Capstan Lock |
Q1 (2sb641) R28 (56k) Servo Pcb |
JVC |
HR7200 |
No Clock Display With Blown 315 Ma Fuse. |
Check For D13 22.3v Zener And Q5 (2sb6420) Faulty. |
JVC |
HR7200 |
No Colour On Playback. |
Check For Leakage Of B/w Colour Switch At Rear. |
JVC |
HR7200 |
No Ff/rew Or Pic Search In Rev Or Forward. |
Look For Cp2 O/c Sometimes Called R48 (near Ic12) |
JVC |
HR7200 |
No Picture |
Check Q221 For O/c. |
JVC |
HR7200 |
No Sound In E.E. Mode. |
Change Ba7003 Inr.F. Converter. |
JVC |
HR7200 |
No Sound On E.E. Or Record. |
Change D14 (leaky) On Audio/video Board. |
JVC |
HR7200 |
No Sound On Some Channels. |
Check T4 For O/c. |
JVC |
HR7200 |
No Tape Function. |
Replace Sensor Lamp. |
JVC |
HR7200 |
No Tv/video Switch No Ee, No Play Pictures |
+9v Missing On Audio/video Pcb. Dry Joints To Q101 +9v Regulator. |
JVC |
HR7200 |
Not Erasing Previous Audio |
Dj On Ferase Head. |
JVC |
HR7200 |
Overloaded E.E. Signal With Good Sound. |
Check If Q107 (2sb643) Leaky Producing Playback 9v In E.E. Mode. |
JVC |
HR7200 |
Pic In Coloured Horiz Bands |
Check If C462 (15pf) Is Leaky, Near (ic403). |
JVC |
HR7200 |
Play F.F. Modes Stay On For Split Sec. Then Rewinds. |
Replace Faulty Supply End Sensor. |
JVC |
HR7200 |
Play Is Selec. Pause,audio Dub & Play Leds Light Up Interm. |
Playback Switch Faulty. |
JVC |
HR7200 |
Playback And Tuner Signals Rolling And Pulling. |
C285, (47 Mfd) S/c. |
JVC |
HR7200 |
Prerecorded Tape Ok, No Colour On Own Recordings. |
Check L407 If O/c Near (ic401) |
JVC |
HR7200 |
Reel Motor No Go Or Stays On. |
Remove Glue From Pcb |
JVC |
HR7200 |
Selecte Play Tape Loads The Pich Roller Wont Operate. |
Replace Load Betlt. |
JVC |
HR7200 |
Set Eats Tapes When Loading Up. |
Faulty Heads (tape Sticking). |
JVC |
HR7200 |
Set Fails To Operate. |
Check If Nylon Shaft Which Operates Switch Is Faulty. |
JVC |
HR7200 |
Set Int Stops. |
Check Q17 For D/j's. |
JVC |
HR7200 |
Set Loses Time. |
Change Sm5502a Clock/counter Ic. |
JVC |
HR7200 |
Set Moves From Ch 1 To Ch 8 And Stays There. |
Change D221 (leaky) Associated With Ic201 (upc1362c) |
JVC |
HR7200 |
Set Stops Intermittently. |
Check For D/j's On Q101 In P/s. Also D/j's Around Q216 (capstan) And D/j's On Q17 Mechanon Board. |
JVC |
HR7200 |
Set Switches Off After Twenty Minutes. |
Check F8 For Loose Fuseholder. |
JVC |
HR7200 |
Slow Rolling Noise Bar Occuring In Play Mode. |
Check O/c Tracking Control, R35 Faulty. |
JVC |
HR7200 |
Sound Slow, Picture Has No Line Lock. |
Check If 12v Supply Rail Is High (16v) If So Reg Trans S/c. |
JVC |
HR7200 |
Supply Reel Rotates For 10 Sec. Then Stops,no Com.Accepted. |
Check Unload Switch For Poor Contacts. |
JVC |
HR7200 |
When Stop Is Selected After Short Recording. |
R/h Spool Unwinds For Ten Seconds, This Is Normal For This Machine. |
JVC |
HR7200 |
Wont Change Channels Stays On Ch 1. |
Check If Fuse 5 Is O/c. If So Q8 (2sb644), Ic3 (upc574j-kl) And Ref Zener S/c. |
JVC |
HR7200 |
Wont Record Sound, Playback And E.E. Sound Ok. |
Check Zener Diode D17 S/c. |
JVC |
HR7200 |
Wont Switch Off When The Tape Came To An End In Either Dirc |
Check If Cassette Lamp Has Slipped Down Its Holder. |
JVC |
HR7300 |
Drum And Capstan Motors Running When Switched On. |
Loading Switches (old Grease) |
JVC |
HR7350 |
Int Poor Playback. |
Change C272, 273 (.022 Mfd) |
JVC |
HR7350 |
Int Shutdown In Play Mode |
Check For Stiff Ul Switch Slider, Or Sliding Lever From Solenoid Sticking. (located In Front Corner Of Chassis.) |
JVC |
HR7350 |
Wow And Flutter. |
Change Capstan Motor. |
JVC |
HR7600 |
Unload Faulty. Stop Light Flashes |
Check Unload High From Pin 16 Ic5 Thru Q5 Check D18,d19,d20 |
JVC |
HR7650 |
Display Fades After 10 Mins |
C262,c263,c256 On Reg Pcb Near Tuning Pcb |
JVC |
HR7650 |
Drum Motor Running All The Tim, Wont Load Up. |
Check If After Loading Switch Is Jammed. |
JVC |
HR7650 |
Drum Speed Increases On Play After 25 Min. |
Ic13 (upc1458) Faulty |
JVC |
HR7650 |
Eject Function Wont Function Correctly. |
Clean Or Replace Al And Ul Switch Assy. |
JVC |
HR7650 |
Ejects Tapes As Soon As Inserted |
Check Tape Sensor. |
JVC |
HR7650 |
Erase Or Recording Of Sound Faulty |
Check For D/j's On Full Erase Head P.C.B. Also Ry1 Or Ry2 (audio Board) Or T1 (osc Block) In That Order. |
JVC |
HR7650 |
Faulty Erasing Previous Video Or Audio |
D/j's On Full Erase Head |
JVC |
HR7650 |
Int Sound Erasure. |
Change Bias Osc Module With Later Type And Both Relays. |
JVC |
HR7650 |
Int Speed Variations When Warm. |
Check Ic6 (an6341) Ic7 (tc4066) Also Ic22 (m54519p) by Heating And Cooling. |
JVC |
HR7650 |
No Display, But Functions Ok |
Cf 401 (under Display) If D238 R/s Replace Within4001 |
JVC |
HR7650 |
No F.F. & No Forward Search. Rewind Ok. |
Change Q18 (2sc3070) Even If It Checks Ok. |
JVC |
HR7650 |
No Reel Motor Drive. |
Check Q18, Q19 For Visual Damage Also Q10 And Q11 Because Q15 Is S/c. Replace With Original Type Only. |
JVC |
HR7650 |
No Tape Function. |
Replace Sensor Lamp. |
JVC |
HR7650 |
Selecte Play Tape Loads The Pich Roller Wont Operate. |
Replace Load Betlt. |
JVC |
HR7650 |
Sound Variations |
Rotate R/h Tape Pillar. |
JVC |
HR7650 |
Tape Goes In But Won't Eject |
Fuse F4. |
JVC |
HR7650 |
Tape Loads Then Unloads. |
Change Sensor Lamp. |
JVC |
HR7650 |
Wont Record A Video Signal |
Check Q235 (2sc1652) For S/c |
JVC |
HR7655 |
Int Sound Erasure. |
Change Bias Osc Module And Both Relays. |
JVC |
HR7655 |
No Clock Display |
Check R287 (10r) And Zener Diode D233 (24v) On Sub Power Supply Pcb |
JVC |
HR7655 |
No Functions Exept Off Light Illuminated. |
Check For No 12v Line Because Q207 O/c Pin 36 Of Ic206 Is The Power Off/ac Detector. Should Be High. |
JVC |
HR7655 |
Sound Distortion With Vol Varying |
Re-adjust T5 (near Q6) |
JVC |
HR7655 |
Unable To Channel Select On Programmable Timer. |
Check If Tuning Selector Switch Is In Skip Position: Should Be Off Position. |
JVC |
HR7700 |
A Noise Bar During Playback. |
Due To Ic601. |
JVC |
HR7700 |
Buzzing In Sound. |
Clean Both Slide Switches On (left) Servo Board If Faulty Still Remains Reduce E.E. Level (bottom Board). |
JVC |
HR7700 |
Clock Display Erratic No Counter Facility. |
Check Ceramic Filters Cf1 And Cf2 On Tuner/ti,er Board, Replace Both With New Type Board, Replace Both With New Type Oixo-033-974. Change R13 To 560 K Ohm, C1 To 120pf, C2 To 470pf, C3 To 120pf. |
JVC |
HR7700 |
Distorted Sound In E.E. Mode In Tape Goes Double Speed. |
Change X35 (leaky) On Bottom Mech Board. |
JVC |
HR7700 |
Drum Speed Wont Set. |
Drum Dis Wiper Faulty. |
JVC |
HR7700 |
Frame Jitter Or Roll In Play Mode And E.E. |
Check L/h Tape Roller, Incorrect Back Tension, Incorect Head Switching Points If Ok. Check Tpg Video/lum Board For Missing Field Pulses C44 (33 Mfd) Gone Low. |
JVC |
HR7700 |
Horiz Wobble. |
Check Pinch Wheel, Ball Races In Lower Drum Relay Pulley Or Defective Drum Relay Pulley Or Defective Drum Motor (should Be Less Than .2v Ripple On Positive Side In Pause). |
JVC |
HR7700 |
Int Records In Monochrome. |
Check Adj Of Colour Killer On Y/c Board Fully Clockwise For Colour. Check In Order Ic202 (an305) 4.433169 Mhz Crystal; 4.435571 Mhz Crystal Misadjustment Of Colour A.F.F. And A.P.C. Loops. |
JVC |
HR7700 |
Inter. Loop Of Tape Hanging From The Flap Of Ejected Cass. |
Check The Take-up Spool Brake If Coming On After The Supply Spool Brake: Take-up Turntable Tyre Is Worn. Replace The Take-up Turntable And The Coil-spring That Holds The Brake. |
JVC |
HR7700 |
Low Cassette Motor Loading Torque. |
Replace X11 And X12 Where 2sa1020 Use 2sa684. |
JVC |
HR7700 |
Low Cassette Motor Torque |
X11,x12 Mecha Control |
JVC |
HR7700 |
Negative Picture And Buzzing In The E.E. Mode. |
Check If Pin 5 Supply Is 6v Instead Of Normal 9v Due To X12 (2sd638r) B/e S/c (located On Junction Board 07). |
JVC |
HR7700 |
No Clock Display. |
If Clock Crystals Are Red Change To Blue Ones, Change microcomputer I.C. |
JVC |
HR7700 |
No Colour On Play Or Record. |
Change An305. |
JVC |
HR7700 |
No Functions. |
Check Missing 23v Supply With Fs Blown C36 S/c Or Very Leaky. |
JVC |
HR7700 |
No Line Lock On Playback. |
Change Drum Servo Ic (an318) |
JVC |
HR7700 |
No Picture On Tuner, Audio Ok. |
Replace Ic1 (ha11701). |
JVC |
HR7700 |
No Reel Motor Rotation. |
Due To Ic603 Being Faulty. |
JVC |
HR7700 |
No Rew Of F.F. From Remote. |
Disconnect Tuner Timer Board If Rew & F.F. Ok. Check Ic38 Ta57 On Tuner Timer Board S/c. |
JVC |
HR7700 |
No Signal Through Tuner. |
Check X17 For Dry Joints. |
JVC |
HR7700 |
No Sound In E.E. Mode. |
Change Ic3 (upd4066c) Located On Junction Board Check Ic1 Ha12005, X4 X44 On Mechanon Board. |
JVC |
HR7700 |
No Sound On Playback |
Check Leakage Between Connectors 237 & 238 If So, Check 15v On Pin 23 Of Mech Board, If So Leakage Between Connectors 237 & 238. |
JVC |
HR7700 |
No Tape Transport. |
Change Transistors In Motor Drive Board And All P/s Switching Transistors To Prevent Happening Again. |
JVC |
HR7700 |
No Tracking With No Sound. |
Check Pinch Roller Arm If Bent. |
JVC |
HR7700 |
No Tuner Signal. |
Absence Of Supply In I.F. Section Q16 In Power Supply. 2sd1275 |
JVC |
HR7700 |
Noisy Recordings. |
Change Ic9 (upd4027c) If Ok Check X6 And X11. |
JVC |
HR7700 |
Pause & Slow Speed Dont Respond Corr. Black Spots On Screen |
Change R38 And R39 With Wire Links Make Sure C75 On Servo Panel Is In Position. |
JVC |
HR7700 |
Pic. Plays As If In Search,unmuted Sound.Search,pause Inter |
Mode Switch. It Can Be Cleaned But Is Better Replaced With A Modified Type Available From Toshiba (part No. 70197081) |
JVC |
HR7700 |
Playback Of Own Recordings Have A Line Going Up The Screen. |
Refer To V.C.R. Technical Service Information Book Page No. 33. |
JVC |
HR7700 |
Remote Controll Functions Refuse To Set.Change & Clock Set. |
Change Ta1 (ta57) Tuner Timer Board. |
JVC |
HR7700 |
Rew,f.F. Or Pic Search, Alarm Mode Lights Flash. Wont Play |
Check Pinch Solenoid Sticking Switch S17 (retension). |
JVC |
HR7700 |
Set Wont Remember Tuning Data. |
Look For -24v On Pin 9 Of Memory Chips If Absent Check X9 (2sd638). Pin 8 Of I.C. Should Be Zero. If Not Check C19 (4.7mfd). |
JVC |
HR7700 |
Slow F.F. Search. |
Check Missing Riveted Boss On Supply Brake Assembly. |
JVC |
HR7700 |
Snowy Picture. |
Change Ic7 (sn76670n) Limiter Ic. |
JVC |
HR7700 |
Sound Slurred In E-e Mode. |
Check 12 Volts At Connector 35 On Audio Panel. If So It Comes From X35 From Mechacon Board Which Is Leaky. |
JVC |
HR7700 |
Stops When Still Or Slow Speed Is Selected. |
Check Ic1 On Mech Board Pin 6 Getting Interrupt Sig: C42 (330 Mfd) O/c. |
JVC |
HR7700 |
Stops With Tape Half Loaded |
One Magnet Missing From Lower Drum Asy |
JVC |
HR7700 |
Tape Remaining Indicator On Or Flashes Erratic. When Played |
Change Ta2 On Tuner Timer Board. |
JVC |
HR7700 |
Tape Remaining Indicator, Flashes Errat. When Play Is Sele. |
Replace Gate Array Ta2 On Tuner Timer Board. |
JVC |
HR7700 |
Tracking Noise On Pic.(cant Be Controlled By Tracking Pot) |
Change Ici (an360) (control Pulse Amp) On Servo Panel-1. |
JVC |
HR7700 |
Wont Remember Tuning Data. |
Check X9 (2sd638) If Faulty Check Also C19 (4.7 Mfd) |
JVC |
HRC3EA |
No Go Dead. |
Replace Main Fuse (3a). |
JVC |
HRD110 |
Chews Tapes. |
L.H. Cass Detector Slide Switch Not In Its Slot. |
JVC |
HRD110 |
Dotted Pattern On Recordings. |
Check Colour Level Control Adj. Goes High. |
JVC |
HRD110 |
Erratic Operation Of Channel Select. Only Ch 8 Comes On. |
Change D219 On Present Board. |
JVC |
HRD110 |
Goes Into Rewind When Operate Button Is Pushed. |
Suspect C228 Int S/c Associated With Carriage Down Detect Switch. |
JVC |
HRD110 |
Insert Tape F.F Then Ejects |
Faulty Take Up Sensor. |
JVC |
HRD110 |
Int Failure Of The Front Control Buttons |
Check Q223, D225 And Q208 Being Turned Hard On Due To Int S/c In Din Socket. |
JVC |
HRD110 |
Poor Picture In F.F. Search. Large Noise Bar On Screen. |
Faulty Drum Motor. |
JVC |
HRD110 |
Unit Selects Wrong Modes. |
Change Microcomputor Ic On Mechanon Board. |
JVC |
HRD120 |
Erases Tapes As It Plays. |
Q6 2sb641 Audio Circuit |
JVC |
HRD120 |
Function Buttons Light But No Effect. |
Check Erratic 12 Volts From Regulator Tr801 Also Bc5474 D802 For Leakage. |
JVC |
HRD120 |
Head Drum Running Too Fast. |
Check Supply To Ha13008 (ic407) Should Be 13v, If Ok Check C465 (100 Pf) Leaky. |
JVC |
HRD120 |
Int Chews Tapes. |
Faulty Motor. |
JVC |
HRD120 |
Int No Clock Display. |
Check Filament Power Subpanel For D/j's. (located Under Tuner/ Presetter. |
JVC |
HRD120 |
Int Snowy Picture. |
Check R.F. Amp And Converter Solder All Suspect Joints. |
JVC |
HRD120 |
No Colour On Playback. |
Check C433 (.022 Mfd) S/c, Also Bpf401 For D/j's. |
JVC |
HRD120 |
No Colour. |
Vxo Crystal Xb401 Faulty. |
JVC |
HRD120 |
No F.F. Or Rew. |
Check Q206, Q207 And Ic206 If Ok. |
JVC |
HRD120 |
No Functions, Clock Refuses To Be Set. |
Check For 9v On Mechanon Board, Q205/0205 For 5v Supply And Cp2 O/c Connected To It. (not Shown In Manual) |
JVC |
HRD120 |
Noise Bands Moving Upwards On Playback. |
Check R466 (270 Kohm) O/c If Unable To Lock In With R463. |
JVC |
HRD120 |
Noisy Pictures In Play. |
Check +12v Supply For High Freq. Oscillations. Add 0.1uf Cap To Input Of 7812 Reg. Between Pins 1 And 2 Of Ic 1 |
JVC |
HRD120 |
Not Recording Colour. |
Replace C197. |
JVC |
HRD120 |
Play And Record Modes Drum Speed Hunting. |
Check R446 (270 Kohm) Gone High. (between Pin 14 & 15 Of Ic404.) |
JVC |
HRD120 |
Tape Stuck In Loaded Posit. Only Operate Button Works |
Check Circuit Protector Cp1 For O/c And Ic204 For S/c. |
JVC |
HRD120 |
Unit Loads Up Goes For 5 Secs Then Unloads. |
Check For No Drumpick Up Pulses, (pick Up Head O/c). |
JVC |
HRD120 |
Wont Fully Erase Tape. |
H.F. Osc Will Not Start. Change Q8 2sd368r To 2sd6385. Add 5.6pf Cap Across C48. |
JVC |
HRD120 |
Wont Play, E.E. Ok |
Check D/j's On Lum/chrom Board. (covers The Video Heads). Check Also To Clean Board. |
JVC |
HRD120 |
Wont Select Weak Stations In Through Video E.E. Ok. |
Low Gain Aerial Amp. |
JVC |
HRD140 |
Clock Display Fails After An Hour. |
Check Tl066cp (reset Chip) Changes State When Warm. |
JVC |
HRD140 |
Drops Out Of Record For 10-15 Seconds, Sound Ok. |
Change Ic102. |
JVC |
HRD140 |
Drum Speed Varies. Pinch Roller Erratic. |
Check D408 5.1v Zener (leaky). |
JVC |
HRD140 |
Failure To Record. |
Check Q111 O/c |
JVC |
HRD140 |
Function Light Stays On. No Clock Display, Or Tape Function |
Replaced Cp3 In Power Supply. |
JVC |
HRD140 |
Head Drum Spinning In Reverse (clockwise) |
D408 S/c. |
JVC |
HRD140 |
Int Blank Raster On Play. |
Check L116 For D/j's (near Ic102). |
JVC |
HRD140 |
Int Colour In Play |
Bpf301 R/s Or Dj. |
JVC |
HRD140 |
Int Sound Erasure With Colour Flutter. |
Add A 5.6 Pf Across C23. |
JVC |
HRD140 |
Int Speeding Up Of Capstan. |
Change Q603 (2sd637r) Even If It Checks Ok. |
JVC |
HRD140 |
Laces Up Then Unlaces (head Drum Not Turning) |
Check For No Volts On Pin 2 Of Cn403 If So D408 S/c 5.1 Volt Zener. Also An6671k Head Motor Drive Ic Suspect. |
JVC |
HRD140 |
No Go. Capstan Runs |
D3 In Psu Shorted (3.9v Zenner) |
JVC |
HRD140 |
No Memory On Clock. |
Change Back Up Capacitor. |
JVC |
HRD140 |
No Operation After Loading Up, Wont Eject. |
Check D628 (leaky) Near Ic601. |
JVC |
HRD140 |
No Operation. |
Replace M50730-607sp With M50730-610sp. |
JVC |
HRD140 |
No Red Light On Power Switch. |
Check Cp4 For O/c |
JVC |
HRD140 |
No Tape Functions, No Operate Light But Channel Indicator Lights When Operate Pressed. |
Cp4 ( N10) In Power Supply Faulty. No Switched 5v To Cn3,p6 |
JVC |
HRD140 |
Operate Led Flashes. Drum Moves |
F2 (2a) |
JVC |
HRD140 |
Poor Pictures On Play. |
Check R438 O/c. |
JVC |
HRD140 |
Traces Of Colour From Previous Recording. |
Re-solder D/j's Around Hf Osc Coil. |
JVC |
HRD140 |
Wont Accept Tapes. |
Check For Cracks In Board Near D628. |
JVC |
HRD170 |
No Go. |
Stk5481. Regulator Ic |
JVC |
HRD170 |
No Tape Functions Except Eject Assy Functions. |
Replace Stk5481 Power Regulator Ic In Power Supply. |
JVC |
HRD170 |
Power On Lite Does Not Indicate And Cass. In Symbol Display |
Replace Stk5481 Power Regulator Ic In Power Supply. |
JVC |
HRD170 |
Remote Control Not Functioning |
Faulty (ic601) M50731 610sp. |
JVC |
HRD171 |
See Jvc Hrd171 |
|
JVC |
HRD180 |
Clock Loses Time. |
Change Clock Crystal And Reset C102 As Per Manual. |
JVC |
HRD180 |
Erratic Channel Selection. |
Check C7 On Power Supply For D/j's. |
JVC |
HRD180 |
Int No Colour On E.E. |
Check Ic102 (video Lum Board).(freezing It Produces Fault.) |
JVC |
HRD180 |
Int No Recording. |
Check Connector 2/7 (rec) On Video Board. |
JVC |
HRD180 |
No Functions. |
Check Cp4 If O/c, Also Ic602 For S/c. |
JVC |
HRD180 |
No Reel Drive Drum Rotation |
Check Earthing Screw On Under Side Of Chasis Near Capstan Motor Fit Locking Washer. |
JVC |
HRD210 |
Drum Unlocked, Capstan Unlocked, No 3fsc. |
Ic103 Ta7374p Faulty. |
JVC |
HRD210 |
Eratic Functions, Tape In On Display |
Resolder Earth Connection Under Screw Of Deck Pcb. |
JVC |
HRD210 |
No Audio Of Own Records |
Check T1 (osc Transformer) And Q10 In Audio Section |
JVC |
HRD210 |
No Go,wont Accept Tapes, Cass In On |
Stk5481 Regulator Ic |
JVC |
HRD210 |
Wont Accept Tape. Tape In Indactor Is On |
If Cassette Is Inserted Manually, Rewind And F.Fwd Will Operte For Several Seconds And Then Stop. Also When Entering Play Mode Drum Motor Fails To Start. - Check Output Voltages On Power Regulator Ic801, Stk5481, Mounted On Main Pcb: Pin - 3 Swd 5v. |
JVC |
HRD225 |
Audio Int Cuts Out In Record |
Int Aux/tv Switch. Or D?j Ferase Head |
JVC |
HRD225 |
B/w Lines In Pback Or No Picture |
Cn1 Connector Corroded Top,rear Rhs |
JVC |
HRD225 |
Exessive Wow & Flutter |
Pinch Roller Pressure = 1300-1500 Grams |
JVC |
HRD225 |
No Chroma In Play Or Rec |
Ic401 |
JVC |
HRD225 |
No Tuner In Ee |
Ic1 M51316p Pin 30 Should Be 9v |
JVC |
HRD225 |
Play Pic Is Grey With Flash's Of Lum |
Q501 |
JVC |
HRD225 |
Stops When Hot |
Ic1 On Reel Sensor P# Pu55016 |
JVC |
HRD225 |
Won't Accept Tape. |
Check The Operation Of The Cassette In Detect Switches. See Diagram Page 35. Of V.C.R. Faulty Fixer Manual 1990 Supplement. |
JVC |
HRD225 |
Won't Accept Tapes. |
Check For Faulty Of O/c Semicondutor Fuse, Cp1, At The Edge Of The Main Pcb Near Socket/plug Cn30. If Fuse Is O.K. Check The Operation Of Ic 205, M54544l. |
JVC |
HRD225 |
Wont Accept Tapes |
Check Carriage Switchs |
JVC |
HRD225 |
Wont Eject. Func.Indic. Lamp On.No Mechanical Func. |
Check For O/c Load Motor Of Faulty Load Drive Assembly On Underside Of Mechanism. |
JVC |
HRD230 |
No Eject With Squealing Noise Then Stops. |
Check Loose Screw On Deck Terminal Pcb Under Chassis(earths The Mode Switch). |
JVC |
HRD255 |
No Colour On Play |
Check Ic401 (ha11741) Pin 16 If No 4.43 Signal Xb401 Faulty. |
JVC |
HRD255 |
Selc. Pic Search Breaks Up Into Horiz Lines, Unlacing Tape. |
Change Ic405 To (cd4016). |
JVC |
HRD255 |
Spotted Picture (not Heads) |
Check R459 Drum P.G. Pulse Level Adj. |
JVC |
HRD255 |
Still Frame, Spotted Pic. Wont Play Or Switch Off. |
Switch Mains On/off Several Times Or Check By Earthing Pin 22 Of Ic201, Check D203 5.1v Sener For Leakage. |
JVC |
HRD255 |
Stopping In Play Mode. |
Check Int Output Pulses From The Take Up Reel Sensor. Check Sensor In St/by Mode By Turning T/u Reel By Hand While Dummy Cass C/n 23 On A/s/m Panel Should Jump Between O-5 Volts On Dc C.R.O. |
JVC |
HRD255 |
Tuning Of Preset - Drifting. |
Check If Tp6 Voltage Is Low, Should Be 33v If Not D10 33v Zener Leaky. |
JVC |
HRD255 |
Tuning Search Wont Stop On Some Channels. |
Re-adjust T5 If Sound Buzz Occurs, Change Q12 Dtc144f To A 2sd637r And Add Three Components As Per Fig. 1. Cures Sound Buzz Fault. |
JVC |
HRD255 |
Won't Accept Tape. |
Check For Faulty Or O/c Semiconductor Fuse, Cp1. |
JVC |
HRD320 |
Int No Picture In Play |
Lpf102 Int |
JVC |
HRD320 |
No Drum Spin, No Counter Functions. Stops In Ff & Fr |
Replaced Power Regulator, Stk5481 |
JVC |
HRD370 |
Int Failure To Eject. |
Faulty Loading Motor. |
JVC |
HRD370 |
Int Shut Down In Play Mode. |
Check For Loose Screw Which Connects The Emitter And Sensor To Chassis. |
JVC |
HRD370 |
No Picture In Ee Or Playback. Bands Of Noise On Screen, Audio Ok |
Repalce 2200/16 Cap In Psu/ Check Others |
JVC |
HRD370 |
Noisy Distorted Picture In Ee And Playback |
Check/replace C4 C7 C9 In Psu |
JVC |
HRD370 |
Unable To Set Clock Functions. |
Look For Connector 5 On Timer Board 15 Being Partially Disengaged. |
JVC |
HRD370 |
When A Blank Tape Is Injected It Goes Automatically Into Ff/rw. pre-recorded Tapes Are O.K. |
Check For Short Circuit Caused By Glue On Ic601 Around Pin 43. |
JVC |
HRD450 |
No Go No Power Blown Fuse |
Replace/check Q1 (2sc4517a) Q2 (2sc3616) Before Replacing Fuse |
JVC |
HRD455 |
Unit Tries To Go Into Play Mode Wont Lace Tape To Head |
Check Operation Of Intermediate Gear On Underside Of Mechanisim. Occasionally Seized With Old Grease. |
JVC |
HRD520 |
Keeps Blowing Fuse |
Q1 In Psu (can Use A 2sc3973) |
JVC |
HRD520 |
No Ee No Playback |
Check /replace Q851 (2sb810) Can Be Replaced With 2sb647 |
JVC |
HRD520 |
No Lights No Power, Dead |
On Regulator, Pins 3 And 4 Are Missing, Pin 5 Is High. no Rm2-unsw 5.8v. replace Cp801 Icpf10 |
JVC |
HRD540 |
No Display, All Other Functions Work. |
With Cn1 In Psu Plugged In Machine Has No 4.0 Volts Output. unplug Connector And Voltage Is There. replace C28 220uf 6.3 Volt Cap, also Replace C29 100uf 6.3 Volt Cap. |
JVC |
HRD540 |
Snowy Picture - No Display |
Replace C28 120uf In Psu |
JVC |
HRD565 |
Int Failure To Eject. |
Faulty Loading Motor. |
JVC |
HRD565 |
No Hi-fi Muting In Visual Search. |
Check R330 On Track Side Of Mechanon Board Mounted To Board By Glue Which Becomes Conductive. |
JVC |
HRD566 |
Poor Hi-fi Sound. |
Change Ic403 (bu2710) |
JVC |
HRD600 |
No Channels In Ee |
Replace Q2 On Tuner Pcb With 2sd1275 |
JVC |
HRD7200 |
Lines Rolling Through Pic. Capstan Speed Slightly Out. |
Ic7 C1458c Dual Op Amp. |
JVC |
HRD725 |
All Display Lights Come On. Switch Off And Check. |
Q2 For S/c Which Causes The 12v Supply To Rise To 23v. change Q1,q2, D2 On P/s And Q3, D13, D17, D18, D19, D20, C13, C14, L1 And Ic1 On Tuner Board. |
JVC |
HRD725 |
Background Noise In R/h Channel. |
Replace Video Heads. |
JVC |
HRD725 |
Changes From Sp To Lp |
Remove All Glue From Bottom Pcb |
JVC |
HRD725 |
Int Failure To Play. |
Check Stiffness In Loading Mechanism And Gears (clean And Re-grease). Also Check Two Small Loading Gears On Loading Rings |
JVC |
HRD725 |
No E.E. Sound Or Playback Sound. |
Check Fuse Cp3, Check If 9v On P8 Of Ic5, If Missing Q16 B/c S/c. |
JVC |
HRD725 |
Perfect Results In Play, No Good In Pause. |
Check Set Is Level. Chassis Distorts And Produces Noise Bars. |
JVC |
HRD725. |
Intermittently Unit Goes To Lp When Playing Back Sp Tape. |
Check The Crimping Of Leads To And From Ctl Head For Poor Connections. |
JVC |
HRD750 |
Lines Across Picture In Uhf Stations |
Dry Joints On Tuner Connections |
JVC |
HRD750 |
No Power....In Power Supply Flash Occurs On Heat Sink Join On Power-up. |
Scrap Away Pcb Track Around Heat Sink Pin And Silicon Up. |
JVC |
HRD750 |
No Record In Lp. |
This Machine Has No Ability To Record Lp Video Only Audio!!! |
JVC |
HRD750 |
Poor Picture |
Replace Capacitor On Lower Drum |
JVC |
HRD750 |
Won't Power Up |
Replace 1uf 50v Start Up Capacitor. |
JVC |
HRD750 |
Wont Accept Tape Or Play.Power Light Is On For Short While. |
Cp2 (1 Amp) Link Leading To Reg. |
JVC |
HRD755 |
Int Loads Up But No Other Functions. |
Check For Faulty Cass End Load Switch In Cass Housing. |
JVC |
HRD910 |
No Sound In Ee Or Video. |
N10 Protector Cp1 Near Q11 In Audio Section. |
JVC |
HRD910 |
Poor (distort) Picture |
Replaced 3.3uf/50v Cap On Drum Motor |
JVC |
HRDJ4000 |
Tape Goes To Play For Aprox 10 Sec Then Switches Off |
Take Up Sensor |
JVC |
HRDJ415;HRDJ615 |
Vcr Shuts Down After 1 Hour |
Replace Both Reel Sensors & Mss |
JVC |
HRDJ625;HRDJ635 |
No Power No Go |
Repalce Q901 And Add A 220 Ohm 1 Watt To R951 |
JVC |
HRDX20 |
No Power.No Go. |
R3 And R17 220k In Primary Start-up Resistors.Check If Open Circuit. |
JVC |
HRDX22 |
No Go . After Placing Chassis In Service Position |
Check Cp1 Fuse In Psu (metal Foil On Lhrear Creates Short Circuit When Chassis Is Put In Service Mode?) |
JVC |
HRDX22 |
When Tape Unlaces, Tape Is Left Around Drum. Machine Will Not Leave Tape Out On Eject Because It Pulls It In Before Eject. |
Replace Mode Select Switch, Pu60622-1-1 |
JVC |
HRJ200 |
No Drum Spin |
Lost 12 Volt Rail To Drum Motor On Pin 1 Of Pcb Connector. replace Cp401 600ma Fuse. |
JVC |
HRJ200 |
Power Supply Int.Failing. |
Main 400v Cap.Leaking. |
JVC |
HRS10 |
Rewind Problems. |
Check Lever, P.No. Pq40837a.3, For Crack In Plastic And Disloged Pin. |
JVC |
HRS5500 |
Machine Switches To Svhs And Vhs When Playing A Vhs Tape. |
Recap Head Amp. |
JVC |
HRS5500 |
When Switch To A Preset Station. Picture Is There And Then Disappears. |
Replace Faulty Electro's On Tuner Pcb. |
JVC |
VP100 |
No Picture In P/back. Chewing Tapes. |
Solder 1k Ohm Resistor Between Pins 2 And 41 On Cpu On Audio/cpu And Remove Glue Under C1080c2 Next To Plug 2012205 Servo Board. |