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Q571
Base
WF8
PIN 4
OF CN571
WF12
WF9
PIN 1
OF CN571
PIN 3
OF WH501A
WF10
PIN 7
OF IC551
WF11
Q572
Collector
WF7
WF1
PIN 26
OF IC111
WF2
PIN 14
OF IC111
PIN 8
OF TU11
WF16
WF6
PIN 3
OF IC801
Main CBA Bottom View
BECAUSE A HOT CHASSIS GROUND IS PRESENT IN THE POWER
SUPPLY CIRCUIT, 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.
CAUTION:
FOR CONTINUED PROTECTION AGAINST RISK
OF FIRE, REPLACE ONLY WITH SAME TYPE 4A, 125V FUSE.
ATTENTION:
UTILISER UN FUSIBLE DE RECHANGE DE
MÊME TYPE DE 4A, 125V.
4A/125V
7-13
7-14
BL2700F01012-1
CAUTION !
Fixed voltage ( or Auto voltage selectable ) power supply circuit is used in this unit.
If Main Fuse (F601) 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.
Содержание SST4274S
Страница 1: ...27 COLOR TELEVISION SST4274S SERVICE MANUAL ...
Страница 42: ...11 3 L2712PEX Packing S5 PACKING TAPE FRONT S1 X1 TAPE X4 X3 X2 X5 S4 S2 S2 S3 S3 S6 ...
Страница 44: ...20040310 12 2 L2712CA CRT Warning Label Location CRT CRT Warning Label CRT Type No ...
Страница 54: ...SST4274S L2712UN 2004 04 08 ...