No Vertical Deflection - Tatung OMNISCAN SERIES Service Manual

6.17
NO VERTICAL DEFLECTION
A BRIGHT HORIZONTAL LINE ON THE SCREEN
CHECK DEF. YOKE - - - - . - - - " - - - - - - - - ,
&
CONNECTOR
1
1
1
I
-->
P301
CHECK VOLTAGE
----------------------->
PIN 14 OF 0301
SUPPLY 24V FOR NEC, HITACHI TUBE
I
1
I
I
CHECK VERT. ,
FEEDBACK CKT.
I
1
1
I
24.5V FOR TOSHIBA TUBE
>
R310, C309, R312, R307
R30a, C30a
CHECK VERT.
------------------------------------->
R311, C313, C305, R306
LINEAR, CKT.
'I
I
I
I
CHECK PUMP
-----,-------~------------------------->
PIN 2 OF 0310
UP VOLTAGE 0301, C302
1
1
I
I
CHECK VERT. - - - - - - - - - - -
HEIGHT
1
CKT.
I
I
I
CHECK OSC.
CKT
I
I
I
I
CHECK VERT
AMPLIFIER
1
I
I
I
END
>
R314, R316
->
C304, 0303, R341 , R302
- - >
0301 (TDA-1675A)
=
6-16
=