Panasonic SS-7100

ALIGNMENT INSTRUCTIONS
2. FM-STEREO ALIGNMENT (Refer to Fig. 10)
FREQUENCY & DISTANCE ON DIAL SCAL | SCA FILTER ALIGNMENT
PL? TABLE
To accurately align the proper frequencies to the dial scale, EQUIPMENT CONNECTION
Bene put AF OSCILLATOR COUPLING OSCILLOSCOPE
‘i | 550 kHz y 67 kHz Connect vert. amp. of scope to point
| y Connect to EXT. FM signal t TP301.
1500 kHz 159.9mm 6% reg ves
terminal. Common to chassis.
S9QOMHz 22:8
1. AM/FM-iF & RF ALIGNMENT sel
Kr"
AM-IF
&
RF
ALIGNMENT
(Refer
to
Fig.
10
and
11)
seal
9
A"
CH9 |
SIGNAL SIGNAL
GENERATOR GENERATOR INDICATOR ADJUST REMARKS
COUPLING FREQUENCY SETTING
Fashion loop of several turns Point of noninter- Output meter across
refer
to
Table
and
mark
the
edge
of
the
dial
scale
plate
accord-
ADJUSTMENT
REMARKS
ingly, using the ‘‘Start Point’’ mark on the dial scale as a
3
z
Adjust for minimum oscilloscope
L301 (67kHz Filter Coil)
pattern.
reference point.
19kHz AMP. and LIGHTING LEVEL ALIGNMENT
EQUIPMENT CONNECTION |
: ADJUST REMARKS. 0x
SIGNAL GENERATOR OSCILLOSCOPE =
Connect to EXT. FM antenna terminal Connect vert Amp. of scope to point L301 (19kHz Pick-up Coil) Adjust L301, L303 for maximum
through Dummy antenna. TP302 Common to chassis. L303 (38kHz Coil) oscilloscope pattern of 38 kHz.
€ wi adalat 455 kHz EXT Soeaker Jack Adjust for maximum
134 CH35 of wire an ts iate signal into (400 Hz Mod.) erence. peaker Jac ataut
loop of receiver. (on/about 600 kHz) (L). |
ALIGNMENT CIRCUIT ADJUSTMENT REMARKS
550 kHz Adjust for maximum
L202 (OSC Coil) ee
550 kHz output by sliding coil(L801)
ee | (400 Hz Mod) Leo1 (ANT Col) | oe eee. eh ea Adjust R317 for the lighting level on SG is 224B.
ra
ey
uting
Leve
si
= 1500 kHz C134 eden Adjust for maximum
y ewe (400 Hz Mod.) 1500 kHz P (ANT Sati Repeat steps (2) 38kHz SUB CHANNEL CARRIER LEAK ALIGNMENT
at 131 +; an
T
sae) EQUIPMENT CONNECTION
Notes: 1. Cement antenna bobbin with wax after completing alignment. eres BceILOCCOPE ADJUST REMARKS
| 2. Make certain that speaker system is connected to the turne when alignment.
Connect to EXT. FM antenna terminal Connect vert. Amp. of scope to point R302 (38kHz Sub Ch. Carrier Adjust for minimum oscilloscope
; through Dummy antenna. TP303. Common to chassis. Leak Control
| caat FM-IF AND DETECTOR ALIGNMENT WITH OSCILLOSCOPE (Refer to Fig. 10) ‘ ‘ ‘ iia! ee
PO eager ae ae INDICATOR ADJUST REMARKS SEPARATION ALIGNMENT | Eas ~
ee
ALIGNMENT
CIRCUIT
ADJUSTMENT
REMARKS
Adjust T.01 of primary for maxi- Adjust R304 and L303 for the minimum indication on VTVM from the
Connect vert. amp. of Tor (FM Ist IFT) mum amplitude. SEPARATION R304, L303 right side output when the left side of stereo modulator is modulated.
scope thru. electrolytic Adjust R304 and L303 in the same way for the right side.
. . capacitor (25V 0.1uF)
sa nas a ee ese to point TP203. Adjust 7201 for maximum ampli-
; O poin oint of non-interference Gonnntevebasc
= T tude and symmertrical curve.
91 OC) TP101 terminal. (ON/about 89 MHz) Re E Gna) :
(Refer to Fig. A)
Common to chassis.
Connect vert. amp. of Adjust T202 so that proper linearity
scope to point TP204. T 202 (Disc.) between 100 kHz
Common to chassis. (Refer to Fig. B)
rc
202
a
@ AM IFT TP303
T203
48)
Note: Remove line cord antenna from FM external terminal when aligning.
FM-RF ALIGNMENT (Refer to Fig. 11)
|
@
SIGNAL SIGNAL SIGNAL RADIO T204 |
COUPLING FREQUENCY SETTING
GENERATOR GENERATOR DIAL INDICATOR ADJUST REMARKS
FM IFT | [D boo
! [ tP301
Connect to EXT FM antenna
L104 (FM OSC Coil)
terminal through FM | 90 MHz Output meter across Adjust for maximum
L101 (FM ANT Coil)
dummy antenna Common (400 Hz Mod.} EXT Speaker Jack (L). output.
L102 (FM Detector Coil)
L104 L102
peu
FMOSC Cail
ey cre
Fcscm} jC)
38kHz Sub Ch
amer Leak Control
D
@M L301
9kHz
Pickup Coil
eparation 0
to ahassis.
C119 (FM OSC Trimmer) Adjust for maximum
106 MHz
(400 Hz Mod.)
R304
106 MHz C102 (FM ANT Trimmer) output Repeat steps
C109 (FM Detector Trimmer) (1) and (2).
TP302
Note: As three output responses will be present proper tuning is the center frequency.
Fig. 10 Fig. 11