VINTAGE TECHNICS

www.vintage-technics.ru

Home

 

Audio recorders

Aiwa TP-30

Aiwa TP-60R

Answer ATR-102

Apolec RA-11

Apollo

Assmann TS 10

Concord F-20

Concord F-85

Crown CTD-2200

Dictaphone Dictet

Dictaphone 4250

Dictaphone model 848

Dictaphone "OMEGA"

Dokorder PT-4H

EDI model M-75B

Edison Envoy Model 1

Electron 52D

Electronica M-401S

Electronica M-402S

Electronica M327

Emerson Wondergram

Encorder

Fanon-Masco FTR-2

Fi-Cord 1A

Fi-Cord 101S

Fi-Cord 303

Fi-Cord 300A

Gray Audograph D6

Grundig EN3 Luxus

Grundig DeJur Versatile III

Grundig Stenorette 2000

Globe-Corder GT-101

IBM 224 Dictating Unit

Juliette LT-44

Lanier VIP/C

Lloyd's 8 track player

Mayfair-1602

Memocord K60

Memocord mini K177

Mezon

Miny

Minifon Mi51

Minifon Attache

Minifon Attache-Speaker

Minifon Hi-Fi

Minifon Liliput

Minifon Protona Special

Minifon P55 "Plexi"

Minifon P55 L (1957)

Minifon P55 L (1960)

Minifon P55-Speaker

Mohawk Midgetape 44

Mohawk Midgetape 300

Mohawk Midgetape 400

Monacor

Mriya

National RQ-8100

Norelco LFH 0085/54

Norelco LFH 0095

Olympus Pearlcorder L200

Panasonic RQ-115

Panasonic RQ-212DKS

Panasonic RQ-SX56

Panasonic RQ-SX97F

Philips EL 3302

Phono TRIX 88

Playtape 1200

Pocket Corder MC-2

Reporter 5

Ross Mark-55

Sanyo Micro-Pack 35

Sanyo M2580K

Sony BM-17 Dictator

Sony TC-5

Sound Machine "Hokie Pokie"

SoundScriber

SoundScriber 200

SoundScriber 200 B

Sputnik 401

Spy Tape Recorder

Steelman Transitape

Stenotape TR-711

Stuzzi Memocord 304 B

Tefifon Holiday BK-59

Telefunken 600

Telmar T-100

Tinico

Vesna-309

-1 (Yacht)/i-1

Accessories

 

Televisions, video

Akai VT-150

Akai VC-150

Electronica-501-video

Electronica-video VMP-1

Electronica-508M-video

Electronica-841

Electronica L1-08

Panasonic TR-1030P

Sony AV-3400

Sony AVC-3400

Sony SL-F1E & TT-F1E

Sony Watchman FD-30A

Sony Watchman FD-40A

 

Tube radios

Emerson 508

Motorola 56L2

RCA Victor 54B2

RCA Victor BP-10

Sterling LS-4

Tourist PMP-56

United Deluxe RN-5

 

NEW

EDI model M-75B

Mriya

-1 (Yacht)/i-1

Tube stereo cassette player

Tube Microcassette recorder

Tube "Electron 52D"

 

Other rarities

Detective Dictograph

FED-5v

Krasnogorsk-2

Motorola M75

Pentacon six TL

Tube Tester I-177

Viliya-Auto

V/A - Meters

First transistors USSR

 

My works

Tube stereo cassette player

Tube Microcassette recorder

Tube "Electron 52D"

 

 

 

 

 

RussianAudio recorders Televisions, video Tube radios NEW Other rarities My works

 

Sony Videocorder AV-3400

Page 1 of 2

< 1 . 2 >

   

   

 

Used Google translator

     Sony Videocorder AV-3400.     Portable Japanese reel video recorder format EIAJ. Model 1969, manufactured in 1970.
Dimensions 290 x 270 x 150 mm. Weight 8,5 kg. Power supply 12 v, battery BP-20, or from a
Power Adaptor AC-3400. Used magnetic tape V-30, a width of ½-inch reel diameter 130 mm. A connector for the camera like AVC-3400 and the TV. Videos can also be quickly viewed on the camera viewfinder.  
     Circuit recorder collected only on the transistors (about 80 pieces), it does not have a single chip. Electronics such recorders rarely breaks, and usually only requires repairs kinematics, namely the Drum motor, and certainly requires changing lubricants and rubber belt. To repair the drum motor has to be removed and completely disassemble the unit heads. As it turned out, from the old oxidized contacts collector, dry foam insert under the brush springs and the springs themselves caved. It should be noted that the design of brushes are not designed for 40 years of operation, and this defect should be present in any such recorder. I had to repair some of the video recorder, and in all cases we had to sort out
URH brushes to restore contact with the collector.
     In the Internet you can find a lot of publications about this model and produced her accessories. Instructions for use can be found HERE.

 

Video footage recorded on Sony AV-3400 with a video camera Sony AVC-3400. Survey was conducted from a height of 9 floors, pictured right to use zoom

Trial recording on Sony Videocorder AV-3400 Camera AVC-3400



Specifications

     Video recording system:  Rotary 2-head scan system, full field, composite video signal based on American TV standards (supplied from the Video Camera AVC-3400)


Recording time:   30 minutes continuously with a V- 30H tape
Tape speed:   7 ½ ips
Tape width:   ½ inch
Video modulation system:   Frequency modulation
Horizontal resolution:   More than 300 lines
Video signal-to-noise ratio:   Greater than 40 dB
Video input:   1.0V (p-p), 75 ohms, unbalanced
Video output:   1.0V (p-p), 75 ohms, unbalanced
RF output:   75 ohms, 80 dB (OdB = 1microV/m)
Audio input:  (microphone input) 3.6k ohms, -65 dB, AGC
Audio output:  (earphone output) high impedance
Audio frequency response:  100 Hz-10 kHz
Power requirements:   DC, 12 V AC, 117V10 (with use of AC-3400)
Power consumption:   12 W (without AVC-3400)
Dimensions:   11 (w) x 6 3/4 (h) x 11 5/8 (d) in
Weight:   18 1b, 12 oz (with battery pack, tape and reel)

Accessories supplied:
Ac Power Adaptor, AC-3400
Battery Pack, BP-20
Tape, V-30 H
Empty Reel, RH-5E
Earphone, CE-3
Monitor connecting cable, VMC-1M
Polishing Cloth
Splicing Tape
Cleaning Fluid
Head Cleaner
Shoulder Bag

Optional accessory
RF Units:
RFU-53W (for 3 channel)
RFU-54W (for 4 channel)
(Antenna Selector, ANS-1 is supplied.)

Photos can be enlarged

In the video recorder is provided using the battery type BP-20, with a voltage of 12 v, and a capacity of 1 a/h. Homemade battery at 12 volts (analog BP-20) is made up of two sealed lead-acid batteries for 6 volts, 1.3 a/h. Original battery is also collected from two batteries 6 v.

Instructions to the original rechargeable battery BP-20

At the moment I have two of the tape, and placed below their photo taken during the repair

In the photo below the recorder to the board voltage regulator further modification

Two modifications were made such recorders. In the early and later versions were structural differences URH. On the left at the bottom of the head early versions, right - later

     In early versions URH Guide band for tape fastened to the underside of the chassis with screws. Later, instead of the guide band on the surface of the body began to make the appropriate tab in the manufacturing process. It also adds three additional springs to adhere the tape from the top in position on the surface of the URH.
     On the left bottom of the URH earlier versions, right - late

On the left bottom recorder early modification. It is seen therein that the boards of a different color. Added to this is that the basis for the Soviet copy - video recorder "Electronica-501-video" was taken Sony AV-3400 of the first modification

 

This board is the motor control circuit

Engine rotating head assembly was defective. To get to it had to completely disassemble the block heads. The design of it is those, that at assembly all details become exact on the landing places, and additional adjustments are not required almost. Centering of an axis of the engine on a washer tachosensor is required only.

       

On a photo at the left below tachosensors it is established, on a photo on the right he is removed. At repair of the block rotating heads to remove it is impossible, as at assembly he is required for centering an axis of the engine

     

Foam insert a spring brushes grown old and lost their springy properties. As a result of lost contact between the brushes and the collector of the rotor. To recover the engine needed replacement foam inserts and cleaning the collector rotor.

   

Brush springs eventually sag and lose their shape. In the photo at the bottom right of the brush after the replacement foam inserts and repair springs. It is necessary to mean, that graphite brushes are pasted to springs by electric glue, and to restore the form of springs it is necessary very cautiously that they have not fallen off. At me such case was, and I have pasted a brush usual electric glue with silver conductive, and then for durability have strengthened epoxy

 

At assembly after repair it is necessary to tighten a nut fastening the rocker with the heads. That it to make, it is required to fix strong a shaft of the engine on the other hand. For this purpose it is necessary to grind off a round surface of a shaft before formation of a plane that it was possible to hold his flat-nose pliers. A photo at the left below.

         

On the right picture below tachosensors

 

Magnetic tape such as V-30 in the width 1/2 inches

Cable VMC-1M and his scheme (scheme site labguysworld.com)

   The original power supply AC-3400 with charger function. Except for the button and the indicator of inclusion, on the forward panel there is an indicator of a level of a charge of the accumulator, a start button, and a socket for connection of the accumulator. Dimensions 293 x 127 x 92 mm with no protruding parts, the weight of 3.8 kg.

The top cover is attached a brief instruction on the use of the power supply as a charger

Circuit diagram video recorder Sony AV-3400

 

Block diagrams, mechanisms, and pictures of electronics boards


    Camera record mode               TV record mode servo          Playback mode servo         Rec/play mode audio


   Video system                          Block diagram                       Forward mode               Fast forward mode


             Tape path                   Video board        Demodulator board           Servo board                Audio board        


Video head assembly                               Transistors and diodes                                 


Wiring Sony AV-3420. This model was produced for the European market, structurally identical to the model Sony AV-3400, but the wiring diagrams differ significantly

     In the Soviet Union in 1974 under the titles produced analogues "Electronica-501-video" "Electronica-video_VMP-1". Appearance very similar, kinematics copied completely. Wiring, location electronics boards and configuration are also identical. Details of these recorder can be viewed at "Electronica-501-video" "Electronica-video_VMP-1".

Compare Photos

Next

Page 1 of 2

< 1 . 2 >

Home