Sylvania 6842PF M Service Manual page 59

Sub Power Supply CBA Top View
CAUTION !
Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit.
If Main Fuse (F2000) is blown , check to see that all components in the power supply
circuit are not defective before you connect the AC plug to the AC power supply.
Otherwise it may cause some components in the power supply circuit to fail.
CAUTION ! : For continued protection against risk of fire,
replace only with same type 4A, 250V fuse.
4A 250V
ATTENTION : Utiliser un fusible de rechange de même type de 4A, 250V.
Sub Power Supply CBA Bottom View
Because a hot chassis ground is present in the power
supply circut, an isolation transformer must be used.
Also, in order to have the ability to increase the input
slowly, when troubleshooting this type power supply
circuit, a variable isolation transformer is required.
NOTE:
The voltage for parts in hot circuit is measured using
hot GND as a common terminal.
1-10-17
SUB POWER SUPPLY CBA
Ref No. Position Ref No. Position
ICS TRANSISTORS
IC2000 C-1 Q2051 B-1
IC2001 C-1 Q2052 B-1
IC2050 B-2 B-1
Q2053
IC2051 B-3 CONNECTORS
TRANSISTORS B-1
CN2000
Q2000 C-1 CN2001 A-1
Q2001 D-3 CN2002 A-2
C-2 A-2
Q2002 CN2003
Q2050 B-1 CN2004 B-1
WF17
PIN 9 OF
T2000
BL0650F01042