Akai MX-550

3-2. ADJUSTMENT
NOTE: 1.Set the S.S.G. to 1kHz, 75kHz
deviation for [U), [S], [B] or [E] model, (LW 2 Oe | NOTE: 1.Set the S.S.G to 1kHz 30% modulation
1 kHz, 40 kHz deviation for [V] model. : [2 Tow sensmivny . on each adjustment.
4. 162kHz, 75dBp (Low) or 297kKHz <288KHz>, | 2. Frequencies indicated in <> are for
ADJUSTMENT
ITEM
75dBy
(High)
the
[V]model.
1. SSG FREQ. & OUTPUT LEVEL . 162kHz PRESET 4 ch, 297kHz <288kHz> ae ee
2. SET Tuning FREQ. PRESET 7 ch.
3. ADJ. Part . T202 (Low), VC202 (High) :
4. REMARKs (¢) & RESULT (*) . eConnect the milli-voltmeter to VER/REC 2. 351kHz <288kHz> (preset 10 ch)
vo
/)
OUT.
|
8.
T204
=a
VY
Se
|
Maximum
output
level.
~
=|
4,
eConnect
the
Digital
DC
Voltmeter
between
o
Test Point | Adjustment Part __ | >For best result, repeat Low and High adjust- TP1 and GND. . 2
ments several times. *8.2 + 0.1V <5.75 + 0.1V>.
~ | NOTE: Set the S.S.G to 1kHz 30% modulation a
i . on each adjustment. oo
: Ls _| 1, 603kHz, 70dBu (Low) or 1,404kHz, 70dBp coe
(High)
2. 603kHz (Low), PRESET 8 ch
1,404kHz (High), PRESET 7 ch
3. T201 (Low), VC201 (High)
4. eConnect the milli-voltmeter to VCR/REC
OUT.
*Maximum output level.
*For best result, repeat Low a High adjust-
ments several times.
DISTORTION (STEREO)
. 98.0MHz, 60dBp (STEREO L or R channel
only)
2. 98.0MHz
3. IFT (FRONT END)
4. eConnect the distortion meter to VCR/REC
OUT.
Minimum Distortion
FRONT END
_ [2 | TUNING LED
| 1. 98.0MHz, 22dBy (MONO).
2. 98.0MHz
+. | 3. Tuning LED on the front panel, VR101.
«| 4, *Tuning LED is lit.
| 2. 1,404kHz (PRESET 7 ch)
_ | 3. T203
__| 4. eConnect the Digital DC Voltmeter between
TP1 and GND.
*6.7 + 0.1 V.
[4 | CENTER VOLTAGE
1, 98.0MHz, 60dBy (MONO)
2. 98.0MHz
3.
T101
1.
162kHz,
65dBu
|
4.
eConnect
the
DC
Digital
Voltmeter
to
both
2.
162
kHz
ends
of
R108.
|
3.
T205
| 4. eConnect the milli-voltmeter to VCR/REC
*0 + 50mV
OUT.
[4
|
STEREO
SEPARATION
.
Maximum
output
level.
| 1. 98.0MHz, 60dBy (STEREO L or R channel
{| only)
|
2.
98.0MHz
.
198kHz,
70dBu
|
3.
VR102
.
198kHz
4.
eConnect
the
milli-voltmeter
to
VCR/REC
.
Tuning
LED
on
the
front
panel,
VR103.
OUT.
.
*Tuning
LED
is
lit.
%*Minimum output level for opposite channel.
|pRon-
TUNER PCB
FRONT
SERVICE MANUAL
TP-550/650