– 8 –
Record/Playback Head Azimuth Adjustment
Procedure :
1. Mode : playback
2. Turn the adjustment screw for the maximum output levels. If
these levels do not match, turn the adjustment screw until both
of output levels match together within 3dB.
Phase Check
Mode : Playback
3. After the adjustment, lock the screw with locking compound.
Adjustment Location :
SECTION 4
ADJUSTMENTS
4-1. MECHANICAL ADJUSTMENTS
PRECAUTION
1. Clean the following parts with a denatured-alcohol-moistened
swab :record/playback head pinch roller
erase head rubber belt
capstan
2. Demagnetize the record/playback head with a head demagne-
tizer. (Do not bring the head demagnetizer close to the erase
head.)
3. Do not use a magnetized screwdriver for 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
Playback CQ-102C 30 – 60 g • cm
(0.42 – 0.83 oz• inch)
Back Tension CQ-102C 1 – 5 g • cm
(0.014 – 0.069 oz• inch)
Rewind CQ-201B more than 75 g • cm
Fast Forward (more than 1.05 oz• inch)
TapeTension Measurement
Mode Tension Meter Meter Reading
FWD CQ-403A more than 100g (3.53 oz)
4-2. ELECTRICAL ADJUSTMENTS
TAPE SECTION
1. The adjustments should be performed in the order give in the
service manual. (As a general rule, playbak circuit adjustment
should be completed before performing recording circuit adjust-
ment.)
2. The adjustments should be performed for both L-CH and R-CH
unless otherwise indicated.
• Switch location
FUNCTION switch • • • • • • • • • • • • • • • • TAPE (RADIO OFF)
PRESET MODE • • • • • • • • • • • • • • • • • • • • MANUAL
GRAPHIC EQUALIZER • • • • • • • center click
BALANCE • • • • • • • • • • • • • • • • • • • • • • • • • • • • center click
VOLUME • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • MAX
MEGA BASS • • • • • • • • • • • • • • • • • • • • • • • • mechanical center
KARAOKE MODE switch • • • • • OFF
Standard Output Level
Output terminal PHONES SP (FRONT) OUT
Load impedance 32Ω3.2Ω
Output signal level 0.25V (–10dB) 0.775V (0dB)
TestTape
Type Signal Used for
WS-48A 3kHz, 0dB Tape Speed Adjustment
P-4-A063 6.3kHz, –10dB Azimuth Adjustment
0dB=0.775V
