Akai X-2000SD - Page 32

2. Recording problems.
(Unit plays back pre-recorded tapes okay, but recording not
satisfactory.)
a) Reel
Does not record No VU meter indication VU meter itself or lead wire defective —Replace
Defective Input jack ————————————. Replace
RL-101 Relay not functioning ————— Replace
REC/PLAY slide switch does Check record lever which
not function properly actuates slide switch
Transistor (TR-103) ((TR-2-3))
VU meter indication normal defective ———— Replace
Bias head does not move —————-—-——. Adjust
Loose connection of (J-103, J-3) Adjust
RL-101 relay not functioning --———- Replace
Components of oscillator circuit or
oscillator coil defective
VU-meter functions normally ; Check recording bias voltage and
Sound distorted Recording monitor through Faulty recording bias circuit —-————— " rami at
external
earphone
also
normal.
components
of
oscillator
circuit
Check transistor (TR-103 and
Faulty recording equalization circuit-— 203) and peaking coil
(L-103, L-202).
Dirty head surface Clean
VU-meter functions normally Lower input signal or turn
but recording monitor Over recording input level ———————— the volume down a little
through earphone abnormal
Main amplifier defective
VU-meter lost sensitivity Replace
Defective input equipment
(microphone, etc.)
Faulty erasing Does not erase at all Erase head defective ———--------—- Replace
| Disconnected wire of erase head.
Excessive amount of dust adhering ——~ Adjust (or clean head).
to surface of erase head
Transistors (28C-97 1)
defective
Incomplete erasure Erasing bias voltage low
Oscillator coil defective
Erase head coil defective
Erasing noise
(popping noise) Defective recording tape ———— Replace
Transistors (2SC-971)_____ ep.
(2SC-458) defective epleet
Head magnetized Demagnetize head
Bias voltage out of adjustment — Re-adjust
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