Power Supply Pb Ass'y - Panasonic BT-M1950Y Service Manual

I.I
I •1y1 I -1i.JV I
Power
supply
PB ASS'Y
1. Outline
AC INLET
The power supply circuit block diagram is shown in Fig. 1-1. The power supply circuit produces 1) 130 V for the CRT
cathode, 2) 54 V B1 voltage and 3) plus and minus 15 V for other functions. An over-current protector circuit is also
provided to stop the horizontal oscillation in event of deflection circuit malfunction.
-
LINE FILTER
~__:'------l
LF 001
0002, 0003
I
I
I
I
SWITCHING DRIVE
I--+-.--..!
0001 BUFFER
SW. REGULATOR
I
Fig. 1-1 Power supply circuit block diagram
-112-
To
CRT PB
To
DEFLECTION PB