– 14 –
4. TRAVERSE SIGNAL check
Connection P oint : CD/System board (Conductor side)
Press the FF or FR from 3.
Check to see that the traverse signal level is between 200 to
400mVp-p.
5. RELEASE THE TEST MODE
After completed with adjustment, press the OPERATE button to
release the test mode.
Note:
Extend the sweep time
for easier view.
200 – 400mVp-p
A
A
B
B
A = B
0V
0V
5-1. MECHANICAL ADJUSTMENTS
TAPE RECORDER SECTION
PRECAUTION
1. Clean the following parts with a denatured-alcohol-moistened
swab :
record/playback/erase head
pinch roller
rubber belts
capstan
2. Demagnetize the record/playback head with a head demagne-
tizer.
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 sup-
ply voltage unless otherwise noted.
Torque Measurement
Torque
Torque Meter
Meter Reading
Forward
CQ-102C
36 to 61 g • cm
(0.5 to 0.84 oz • inch)
Forward
CQ-102C
2 to 6 g • cm
Back Tension
(0.028 to 0.083 oz • inch)
Reverse
CQ-102RC
36 to 61 g • cm
(0.5 to 0.84 oz • inch)
Reverse
CQ-102RC
2 to 6 g • cm
Back Tension
(0.028 to 0.083 oz • inch)
FF/REW
CQ-201B
61 to 143 g • cm
(0.85 to 1.98 oz • inch)
Tape Tension Measurement
Mode
Tension Meter
Meter Reading
FWD
CQ-403A
more than 100g
(more than 3.53 oz)
REV
CQ-403A
more than 100g
(more than 3.53 oz)
5-2. ELECTRICAL ADJUSTMENTS
TAPE RECORDER SECTION
0dB = 0.775V
1. The adjustnemts should be performed in the order in the service
manual. (As a general rule playback circuit adjustment should
be completed beforeming recording circuit adjustment.)
2. The adjustments should be performed for bothe L-CH and R-
CH unless otherwise indicated.
Standard Intput Level
Input terminal
LINE IN
source impedance
10k
Ω
input signal level
0.5V (–3.8dB)
Standard Output Level
Output terminal
LINE OUT
load impedance
47k
Ω
output signal level
0.5V (–3.8dB)
Test Tape
Type
Signal
Used for
P-4-A100
10kHz, –10dB
Azimuth Adjustment
WS-48B
3kHz,
0dB
Tape Speed Adjustment
SECTION 5
ADJUSTMENTS
oscilloscope
(AC range)
TP (TO)
TP (VC)
Содержание ZS-D50 Operating Instructions (primary manual)
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