TVP-2914
9
e)
Repeat all below procedures, connecting now the television under test to a
110Vac/60 Hz line.
Condition
Minimum
Nominal
Maximum
Unit
117V
AC
“PP”
-
-
125,00
W
117V
AC
Stand-By
-
-
3,00
W
234V
AC
“PP”
-
-
125,00
W
234V
AC
Stand-By
-
-
3,00
W
2.2.2 Main Power Supply
a)
Connect the TV set under test to 110Vac/60Hz line.
b)
Turn on the TV and apply a 60dB
µ
V signal (frequency and channel defined
by factory) 88% modulated with white pattern and audio signal with 400Hz
frequency modulated in FM with ±25kHz of deviation.
c)
Adjust the TV to a “PP” condition.
d)
Utilizing a electronic DC voltmeter ( over 10 M input impedance), read the
next point in the power supply.
Condition
Test Point
Minimum
Nominal
Maximum
Unit
“PP” 117V
AC
+B (Cathoe of D807)
130,50
132,50
134,50
V
DC
“PP” 117V
AC
Áudio (Cathode of D808)
20,00
22,00
24,00
V
DC
“PP” 117V
AC
Tuner (Cathode of DZ101)
30,00
33,00
36,00
V
DC
“PP” 117V
AC
+5V (Emitter of Q101)
4,50
5,00
5,50
V
DC
“PP” 117V
AC
+3V3 (Emitter of Q804)
3,00
3,30
3,60
V
DC
“PP” 117V
AC
+8V6 Áudio (Emitter of
Q805)
8,00
8,60
9,00
V
DC
“PP” 117V
AC
+8V Video (Cathode of
DZ807)
7,60
8,00
8,60
V
DC
2.2.3 Main Power Supply Regulation with fluctuation of the line
Repeat the procedure of the item 1 when the television is connected to the
electric net with 100VAC/60Hz and also 220VAC/60Hz.
Condition
Test Point
Minimum Nominal
Maximum
Unit
“PP” 240V
AC
+B (Cathode of D807)
130,50
132,50
134,50
V
DC
“PP” 240V
AC
Áudio (Cathode of D808)
20,00
22,00
24,00
V
DC
“PP” 240V
AC
Tuner (Cathode of DZ101)
30,00
33,00
36,00
V
DC
“PP” 240V
AC
+5V (Emitter of Q101)
4,50
5,00
5,50
V
DC
“PP” 240V
AC
+3V3 (Emitter of Q804)
3,00
3,30
3,60
V
DC
“PP” 240V
AC
+8V6 Áudio (Emitter of
Q805)
8,00
8,60
9,00
V
DC
“PP” 240V
AC
+8V Vídeo (Cathode of
DZ807)
7,60
8,00
8,60
V
DC
Summary of Contents for TVP-2914
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