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(3)
(4)
TDM-7577RB/TDM-7576R/TDM-7575RB/
TDM-7574R/TDM-7574RM
FM Stereo Modulator
FM Signal Generator
Antenna Receptacle
Antenna
Unit Under Test
Control Settings
Adjustment Procedures
Test Point/
Description
Connection
Signal Generator
| Dial Control | P.W.Board
Adjustment
Coordinates
VT
T.P.3
1
Figure 2
—
Adjust
LOO6
for 7.5V.
Adjustment
aS
tee
| (3-A)
pee
ete
T.P.7
iF
98.1MHz, 60dBy
(4-A)
2
:
Figure 3
(Mod. 400Hz,
98.1MHz
Adjust L101 for 0£20mvV.
Adjustment
Dev. 40kHz)
T.P.8
;
(4-A)
r
| 90.1MH
200By
;
Zz,
Ant. Coil
:
Speaker
:
3
:
Figure 4
(Mod. 400Hz,
90.1MHz
Adjust L002 for max. output.
Adjustment
Output
|
Dev. 40kHz)
all.
_|
|
;
90.1MHz, 20dBy
RF Coil
ak
tel Z r
Figure 4
(Mod. 400Hz,
90.1MHz
— 4 Adjust L005 for max. output.
alls
Dev. 40kHz)
oe
IFT C o i l
cairns
Speaker
5
A uae
Figure 4
(Mod. 400Hz,
98.1MHz
oe t
Adjust T001 for max. output.
!
Dev. 40kHz)
La
meh awe
nee
eee
Signa! Meter
aA aia
T.P.SM
6
nee
Figure 5
(Mod. 400Hz,
98.1MHz
iaa) _ | Adlust VRY101 to 3.5v.
ee z) y
a
Dev. 40kHz)
.1MHZz, 34d
Stereo Blend
ne
ee
'
7
| Adustnent
Figure 6
(Mod. 1kHz,
98.1MHz
Speaker
| Adjust VR102 for Lch and Rch output
nt ve
g
Dev. 40kHz,
:
Output
level difference to be 8dB.
Stereo, Lch Only)
L
.AMHZz, 34dBy
Stereo Blend
we
:
:
f
:
(Mod. 1kHz,
Speaker
/| Proceed same adjustment under step
8 | Adjustment
Figure 6
98.1MHz
(Rch)
Dev. 40kHz,
Output
7.
Stereo, Rch Only)
ne
ire
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