No.52003
AV-36F703
AV-36F713
AV-36F803
31
HOW TO CHECK THE HIGH VOLTAGE HOLD DOWN CIRCUIT
1. HIGH VOLTAGE HOLD DOWN CIRCUIT
After repairing the high voltage hold down c ircuit shown in Fig. 1.
This circuit shall be checked to operate correctly.
2. CHECKING OF THE HIGH VOLTAGE HOLD DOWN CIRCUIT
(1) Turn the power switch to on.
(2) As shown in Fig. 1, set the resistor between S1 c onnector 2 and 3 .
(3) Make sure that the screen pic ture disappears.
(4) Temporarily unplug the power plug.
(5) Remove the resistor replac ed S1 connec tor 2 and 3 .
(6) Again plug the power plug, make sure that the normal picture is displayed on the screen.
Fig. 1
4
T502
CONNECTOR
RESISTOR
19.3 k
Ω±
Ω±
Ω±
Ω±
96.5
Ω
Ω
Ω
Ω
HEATER
R537
FR529
S1
C525
R535
D531
3
2
1
Q531
D535
Q532
Q951
R950
POWER
ON OFF
C533
R935
D525
D534
HVT
4
5
(NC)
B1