JVC C-13210 Service Manual page 22

C-13210
C-13211
HOW TO CHECK THE HIGH VOLTAGE HOLD DOWN CIRCUIT
1. HIGH VOLTAGE HOLD DOWN CIRCUIT
After repairing the high voltage hold down circuit 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 SW ON.
(2) As shown in Fig. 1, set the resistor (between X connector 1 & 3 ).
(3) Make sure that the screen picture disappears.
(4) Temporarily unplug the power cord.
(5) Remove the resistor (between X connector 1 & 3 ).
(6) Again plug the power cord, make sure that the normal picture is displayed on the screen.
12V
D958 R953
POWER
ON OFF
D563
22
RY901
Q951
12V
Q562
Q561
D562
R564
C562
RESISTOR
14.46kΩ±
Ω±1%1/4W Ω± Ω±
CONNECTOR
3 2 1 X
R562
D561
R563
C561
Fig. 1
No. 51783
HEATER
HVT
4
R561