Sansui 6060 - 8-4. FM IF System Block Diagram (IC HA1137 W)

cy
BLOCK
DIAGRAM
ee
Lona]
|
Tune
Meter
Discriminator Out
MPX PLLIC xs
) :
J rat
HAIG > Byes
+B (AM)
(Muting)
——+/2V LOW PASS
FILTER
FM Signal Meter VR
Muting & Indicator Adjust VR
Signal Meter
™
xz
+
. Just tuning
OV-----OFF
AM TUNER Tuning off R-CHY 1-H
r [771 0.6V----ON , Muting SW
x
—
Vy
FM FM DOLBY
AM
Signal
Meter
OUT
ADAPTOR
R
SELECTOR
a
MUTING
&
INDICATOR
CIRC
8-3. PLL Block Diagram (IC HA1196)
PLL BLOCK DIAGRAM (IC HA1196)
¥ Free run freq.
{ adjust volume(76kHz)
Stereo or Mono
Switching Signal}
~-- -- ---y - -- tte
_
SWITCHING
C1]
38kHz
SWITCHING
BLOCK
DETECTOR
(21
STEREO
OR
MONO
SWITCHING
BLOCK
AUDIO OUT
&
Indicator Circuit
17