Toshiba 3787DB - Schematic Diagram

SCHEMATIC DIAGRAM MODEL: 3787DB =e (1/5)
CAUTION: The international hazard symbols “\” in the schematic diagram and the parts list designate com-
ponents which have special characteristics important for safety and should be replaced only with types identical to
those in the original circuit or specified in the parts list. The mounting position of replacements is to be identical
with originals. Before replacing any of these components, read carefully the PRODUCT SAFETY NOTICE on page
3. Do not degrade the safety of the receiver through improper servicing.
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OBSERVATION OF VOLTAGES AND WAVEFORMS
1.
Voltages
read
with
VTVM
from
point
shown
to
chassis
ground,
line
voltage
220
volts,
colour
bar
signal.
Voltages
reading
may
vary
+20%.
2.
All
waveforms
are
taken
using
a
wide
band
oscilloscope
and
a
low
Capacity
probe.
3. Waveforms are taken using a standard colour bar signal.
4.
Make
sure
that
CONTRAST
and
COLOUR
controls
are
in
mid
position
and.
BRIGHTNESS
control
is
almost
in
maximum
position.
Set
other
controls
for
best
picture.
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NOTES:
1. D.C. resistance value of a principal transfc
gram. These are measured for separated fra
2. The circuits are subject to change without
3. & : Solder links.
TEXT UNIT
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