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ALIGNMENT
INSTRUCTIONS
@ Power Supply Voltage :
DC 14.4V
@ Balance, Fader Control:
Center
e Output Impedance :
40
@ Tone Control (Bass/Tre)
: Center
e Output Power :
0.5W
@ Loudness
:
OFF
NOTE :
Do not align the LM/MW,
FM IF and FM MPX package blocks.
When
the package block is
necessary, it will be supplied already aligned at the factory.
1. FM CONTROL VOLTAGE ALIGNMENT
(This alignment must be completed
within 30 seconds after power on)
e Adjust for 2.3V
Ant
smanirei
+ 0.05V.
Receptacle
98.0 MHz
bcarrAGL
34 dB)
VOLTAGE
FM Dummy
=< 4Q
a
CAR STEREO
wiRADIO
19kHz : 10%, 400Hz : 30%
2. FM MULTIPLEX SEPARATION ALIGNMENT
Alignment
Band
elie
Input
98.0 MHz
Antenna
Speaker | 98.
® Adjust for maximum
2
FM MPX
FM
74 dB/uV
VR503
VM
FM-Signal Generator
Stereo Modulator
Oscilloscope
19kHz : 10%, 400Hz : 30%
3. RDS PILOT SIGNAL LEVEL ALIGNMENT
98.0 MHz
54 dB/uV
Antenna
[400H Mod,] | Receptacle
e Adjust for maximum
output level.
(Note) : Use a SK- signal (57 kHz, Pilot signal) only as an external modulation input signal.
(Do not apply BK and DK signals.)
EM Dummy
VM
FM-Signal Generator
MW. é son Pf
CAR STEREO
w/RADIO
Stereo Modulator
19kHz : 10%, 400H2 : 30%
=
Chassis
| CQ-RD55LEN
4. HEAD HEIGHT ALIGNMENT
@ 2-Line Tapa ( Mirror tape) —»A-BEX SCC-1659
e At forward play mode, adjust
® and ©' screws so that A-line on the mirror tape runs on the center of head
shield plate.
e At reverse play mode, adjust ® and ®' screws so that B-line runs on the center of head shield plate.
e Then, again at forward play mode, check if or not A-line runs on the center. If not, re-adjust
© and
©'
screws under the same way as the above.
B
Window of
A
mirror tape
\@
nf
<FOR. PLAY >
<REV. PLAY >
q
HEAD PANEL
(View from arrow C direction)
C
5. HEAD AZIMUTH ALIGNMENT
e Test tape is TCC-153.
e lf you do not have a test tape, use a tape whose recording level is
than 6 kHz for head adjustment. After the above adjustment apply
bonding agent to the adjustment screw.
e At forward play mode, adjust © screw only so that speaker terminal
level shows max value.
e At reverse play mode, adjust ® screw only so that speaker terminal
level shows max value.
e Then, again at forward play mode, check if or not speaker terminal
level still shows max value.
ALIGNMENT
POINTS/ABGLEICHPUNKTE
-37-
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