Table of Contents
Advertisement
®Lemse |
AW
O [as
}-—mex-sc}—rm-sol_
Dummy
antenna
©|amss |
AM
Dummy
antenna
@
KA
DISTORTION
SEOEE
METER
SSVM
FM
'FT
Terminal
No. 13
.
Zip
SS
A
Eeaneanay
sauntar
ADJUSTMENT
Lg1i~3,
TCgi~
5
FM TRACKING
(LOW)
TCg5, 6
AM TRACKING
(HIGH)
Lgi3
CFg5
VRg2
VRg1
Lg9
Lgt0
AM
OSC coil
AM
IFT
fe)
SEPARATION
DISCRI
< i?)
BIAS CURRENT
There is no adjustment to be made by trimming potentio-
meter in a conventional manner.
Rel1
(Re12) and Re87
(Re88). in parallel
connection
are
provided
in place of
.trimming
potentiometers.
It is necessary to confirm the
bias current when
the power transistors
(Qe23 ~ Qe26),
the driver transistors (Oe13 ~ 16) or the varistors (De3, 4}
are replaced.
The bias current must be within the range of
20 ~ 200 mA.
(8.8 mV~88
mv)
Before checking, turn VOLUME
fully counterclockwise.)
If the
bias current
is without the range of 20 ~ 200 mA,
readjust
it using the trimming potentiometer
as follows:
@ Remove Re87 (Re88).
@) Change the resistance value of Re11(Re12) from 43Q
to 6822.
@ insert the trimming potentiometer (2002, R12-0055-
05) into the mounting holes.
@ Readjust
Advertisement
Table of Contents
