Jvc 4 ED 1205 Service Manual

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.JVI: SERVICE MANUAL

MODEL 450-1205

No. 4077
April 1972

TAP - RFCOR DER

Dimensions: 117 (H) x 420 (W) x 278 (D) mm
(4-7/8" x 15-3/4" x 10-15/16")
Weight: 7.5 kg
(16.5 lbs.)

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Power source: AC I 17V, 60Hz Motor: Hysteresis synchronous motor
Power consumption: 35W Fast forward speed: Threefold
Track system: 8-track, 4-channel stereo, or 8-track, Head: 3 in 1 head
2-channel stereo Input jacks: MIC jack x 2 0.8mV 10kg
Cartridge: 4-channel. 8-cartridge. or Z-channcl. AUX. INjack x 2 80mV IOOkQ
8-cartridge DIN jack: Input sensitivity ISmV
(Rearjet type or equivalent) Input impedance 8.31m
Tape speed: 9.5 cm/sec. (3-3/4 ips) Output level 0.5V
Wow & flutter: 0.18% (WRMS) or less Output impedance 6_6kQ
Frequency response: 30 ~ 15.000HZ Output jacks: LINE OUT jack x 4 0 ~ 1.0V
S/N ratio: SOdB or more (refer to peak level) Output impedance 6.61m
Crosstalk: SOdB or more Headphone jack output level
Distortion ratio: 2.5% or less. at reference level re- 0~ 01an 80
cording OT playback Transistors: 26 pcs.
Bias system: AC bias (57kHZ) Diodes: 9 pcs.

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1. FEATURES

I 2-channel 8-cartridge tape for both recording, and also 4-channel 8-cartridge tape for playback.

l Automatic stop device (AUTO STOP)

1. Stop for each program

2. Stop at the end of the second (4-channel 8) program, and stop at the end of the fourth (2-channel
stereo 8)

Fast forward device (F. FORWARD)

Locating the beginning of recorded portion

Automatic change from 2-channel to 4-channel and vice versa.

Time counter

4-channel headphone jack

Long-life synchronous motor

Parallel head shift mechanism

3-in-1 head system

Au to-stop device

2. DESCRIPTION OF PARTS

N
l

4ED-l 205 *