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1-1. PARTS IDENTIFICATION
— S&S
SECTION 1
GENERAL
[1] MIC (microphone) (plug in power) jack
[2] «if VOL (volume) control
[3] COUNTER (tape counter) and counter reset button
For indexing the tape contents. Before recording, press the counter
reset button to set the tape counter to "O00".
[4] MIC SENS (microphone sensitivity) switch
[5] ° as FAST PB (fast playback) switch
[6] Tape operation buttons
@ REC (record)/ >» PLAY/ @ STOP/ >
FF/CUE (fast forward/cue)/
<4 REW/REVIEW (rewind/review) button
PAUSE mam. switch
Handstrap
[9] EAR (earphone) jack
VOR (Voice Operated Recording) switch
[11] Flat Mic (built-in microphone)
12] Battery compartment (rear)
[13] REC/BATT (recording/battery) indicator
Cassette holder
15] Speaker (built-in)
DC IN 3V (external power input) jack
This section
is extracted
from
instruction
manual.
SECTION 2
MECHANICAL ADJUSTMENTS
PRECAUTION
1. Clean the following parts with a denatured-alcohol-moistened
swab:
record/playback head
pinch roller
erase head
rubber belts
capstanidlers
2. Demagnetize
the record/playback
head with a head demag-
netizer. (Do not bring the head demagnetizer close to the erase
head.)
3. Do not use a magnetized screwdriver for the adjustments.
4. After the adjustments, apply suitable locking compound to the
parts adjusted.
5. The adjustments should be performed with the rated power
supply voltage unless otherwise noted.
Power Supply Voltage : 3V dc
Torque Measurement
eos
ie eter
Tape Tension Measurement
CQ-403A
More than 60g(2.12 0z)
SECTION 3
ELECTRICAL ADJUSTMENTS
Test tape
WS-48A
3kHz, 0dB
tape
speed
adjustment
Tape Speed Adjustment
Setting:
VOL control: mechanical mid
Procedure:
Mode: playback
speed checker
LFM-30
or
digital frequency
counter
test tape
WS — 48A
(3kHz, OdB)
earphone
jack
Specification:
Speed checker
Digital frequency counter
— 0.5 to +1.5%
3,000 + 15 Hz
Frequency difference between the beginning and the end of the tape
should be within 1% (30Hz).
Adjustment Location : Main Board
RV601
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