
– 14 –
SECTION 4
MECHANICAL ADJUSTMENTS
TEST MODE
This set have the test mode function. In the test mode, FM Auto
Scan/Stop Level and MW Auto Scan/Stop Level adjustments can
be performed easier than it in ordinary procedure.
<Set the Test Mode>
1. Set the “power select” switch (S801) is “A” position.
2. Turn ON the regulated power supply. (All LEDs on the set lights
up, and the clock is displayed.)
Note:Press the OFF button, if the clock is not displayed.
3. Push the preset 4 button.
4. Push the preset 5 button.
5. Press the preset 1 button for more than two seconds.
6. Then the display indicates all lights, the test mode is set.
<Release the Test mode>
1. Push the OFF button.
2. Set the power select switch (S801) is “B” position.
See the adjustment location from on page 17 for the ad-
justment.
0 dB=0.775 V
TAPE DECK SECTION
Tape Speed Adjustment
Procedure:
1. Put the set into the FWD PB mode.
Speed checker Frequency counter
–1.5 to +2.5% 2,955 to 3,075Hz
Specification: Constant speed
Adjustment Location: See page 17.
SECTION 5
ELECTRICAL ADJUSTMENTS
PRECAUTION
1. Clean the following parts with a denatured-alcohol-moistened
swab:playback head pinch roller
rubber belt capstan
idlers
2. Demagnetize the playback head with a head damagnetizer.
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
Mode Torqu Meter Meter Reading
Foward CQ-102C 30 – 65 g•cm
(0.42 – 0.90 oz•inch)
Forward CQ-102C 0.5 – 4.5 g•cm
Back Tension (0.01 – 0.06 oz•inch)
Reverse CQ-102RC 30 – 65 g•cm
(0.42 – 0.90 oz•inch)
Reverse CQ-102RC 0.5 – 4.5 g•cm
Back Tension (0.01 – 0.06 oz•inch)
FF, REW CQ-201B 60 – 200 g•cm
(0.83 – 2.78 oz•inch)
•Tape Tension Measurement
Mode Tension Meter Meter Reading
Forward CQ-403A more than 90 g
(more than 3.18 oz)
Reverse CQ-403R more than 90 g
(more than 3.18 oz)
set +–
test tape
WS-48A
(3 kHz, 0 dB)
speaker out terminal
4
Ω
speed checker
or
frequency counte
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com