Download Print this page

Panasonic RF-788L Service Manual page 3

Fm/lw/mw/sw 5-band portable radio

Advertisement

RF-788L
RF-788L
CORD INSTALLATION GUIDE
Note: Cord lengtn is 90cm (35,%'').
Tuning Shaft
Screws 2.6 x 12(A) x 4
Screws 2.6 x 10(B) x 1
Chassis
Fig. 11
ALIGNMENT
puns
noe ean preoreeaaaaaags
a
Speaker
ar
Pen
ht cee ot
fee Oe seal
i
a
ee
a
oe
aa
er
Sais
MM ALIGNMENT
POINTS
MW ANT
LW ANT
550kHz
145kHz
Li2
[Ls]
FM TUNE
106MHz
Band knob
x1
Push the catch (H)
Power knob x*2
Push the catch (I)
10
Volume knob
Remove in the direction of arrow (J)
sree
Turn the drum fully in the direction of arrow (K)
Fig. 13
Screw
1.7 x 3(L) x1
MW OSC
Circuit Board x3. 4
Remove the drum and turn in the direction
'ts]
of arrow (M)
or rMii2(P)
Insert the drum into the tuning shaft (N) and
neat
Par
:
87.5MHz
11MHz
SW: ANT
fix it by adhesive tape.
'Tad
Screw 2.6 x 8(O) x1
Se
Fig. 14
Battery terminal and spring (P) x2
eure
sefetst
a taera eas
1 A
xWhen disassembly note the followings.
|
a
!
1. Insert the spring and steel ball in the cabinet hole and insert the knob in the hole of band switch lever, as shown in fig. 5.
ToeMne —-« SWs0SC_-LWOSC SW, OSC
MW osc
(SG imp. 500) |
jae reeset
2. Fix the knob to the lever of power switch.
=
[Le]
+ eee
ree ee 1 .
3. Set band switch and lever to FM position and then insert the band switch in the hole of band switch lever, as shown in
Fig. 12
|
Fig. 15 FM Dummy
Ant.
fig. 10.
4. Push the volume lever, in the direction of arrow, as shown in fig. 10.
READ CAREFULLY BEFORE ATTEMPTING ALIGNMENT
Notes:
4, Set power source voltage to 6 volts DC.
1. Set power switch to ON.
5. Signal generator output should be set no high than
*
|
2. Set volume and treble control to maximum.
necessary to obtain an output reading, to prevent
3. Set band selector switch to MW, LW, SW:, SW2 or FM.
overlooking.
AM-IF ALIGNMENT
Fashion loop of
455 kHz
Point of non-
Output meter
several turns of wire
30% Mod _| interference.
across
T2 (1st IFT)
Adjust for maximum
and radiate signal
with
(on/about
voice coil.
T3 (2nd IFT)
output.
into loop of receiver.
400 Hz.
600 kHz)

Advertisement

loading