JVC AV-56WP30 Service Manual page 50

AV-56WP30
HOW TO CHECK THE HIGH VOLTAGE HOLD DOWN CIRCUIT
1. HIGH VOLTAGE HOLD DOWN CIRCUIT
After repairing the high voltage hold down c ircuit.
This circuit shall be checked to operate correctly.
2. CHECKING OF THE HIGH VOLTAGE HOLD DOWN CIRCUIT
(1) Turn the power switch ON.
(2) As s hown in figure bellow, s et the resistor (between S2 connector 1 & 5).
(3) Make sure that the screen pic ture disappears (no raster).
(4) Temporarily unplug the power cord.
(5) Remove the resistor (between S2 connector 1 & 5).
(6) Again plug the power cord, make sure that normal pictures is displayed on the screen.
CN003 2
X-RAY
R565
50
RESISTOR
6.8KΩ±0.5% 1/4W
1 2 3 4 5
TP-E
C562
R562
S1 CONNENTOR
1 2 3 4 5
X-RAY2
TP-E
( )
S1 SERVI CE CONNENTOR
TP-91
R561 R811 D812
R563
C811
NC
X-RAY1
TP-91
140V
No. 52007
4 12
T502
FBT
5
B1
Y503
6 1
8 2
3
1
10
7
9