Hitachi 61HDX98B Manual page 31

DP-85 CHASSIS L.E.D. (VISUAL TROUBLE DETECTION) DIODES
13V
RP23
DP15
DP06 is a RED L.E.D.
Off = No IP01 B+
On (Mid) = IP01 B+
On (Bright) = Shutdown
DP06
RP17
DEFLECTION PWB 5 GREEN L.E.D.s and 1 RED L.E.D.
(6 Total L.E.Ds. for visual trouble sensing observation)
+28V
RP37
DP20
ALL GREEN L.E.D.s
Start Up or Run
Osc B+
24.2V
1.9V
Driver/Output IC
100% Dead Time &
7
IC B+ Detection
130V
Deflection B+ -M13V
RP39
RP38
DP22
24.2V
RP60
5
IP01
1.9V
-M28V
RP26 RP46
DP16
Vcc
IP06
4 1
3
2
IP06 Shutdown
Photocoupler
16 Shut Down
Inputs
DP21
QP05
Shutdown
SCR