Teac R-H300 Service Manual

NOTES
PC boards shown are. viewed from parts side.
»
ThE
pans
with’
ne?
‘reference
®
‘lumber
or
no
parts
number
i
in the exploded views are: not supplied.
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As
regards
the
resistors
and,
capacitors,
refer
to
thé
ce
a
cuit diagrams contained in this manual.
A\ Parts marked with this sign are safety critical cr .
nents. i
They must be replaced with identical components- ‘ater
to the appropriate parts list and ensure exact teplace-
ment. Oe ae |
Parts of [ ] mark can be used orily with the version:desig-- °|
nated.
[DM]: JAPAN [E]: EUROPE

Teac R-H300 Specifications

General

Track System	4-track, 2-channel stereo
Tape Type	Normal, CrO2, Metal
Heads	1 x record/playback
Motor	DC servo motor
Channels	2
Outputs	Headphones

Summary

Specifications

Measurement and Adjustment Methods

Head Azimuth Adjustment

Procedure for aligning the head azimuth for optimal playback performance.

Tape Speed Adjustment

Procedure for adjusting the tape speed to the specified value using test tape.

Playback Gain Adjustment

Procedure for adjusting playback gain for L-ch and R-ch using test tape.

Playback Frequency Response

Testing and adjusting the frequency response characteristics of the deck.

Bias Frequency Adjustment

Procedure for adjusting bias frequency, critical for recording quality.

Overall Gain Adjustment

Procedure for adjusting overall gain levels using a reference blank tape.

Overall Frequency Response

Adjusting bias current to achieve optimal frequency response across tape types.

Micro-Computer's Terminal Function

Wiring Diagram

Block Diagram

Schematic Diagram

Exploded View

Electrical Parts List