Sylvania 6319CCB, Руководство по обслуживанию, Страница: 52 / 108

1-9-12
1-9-13 1-9-14 T7204SCHV
MAIN 4/4 Schematic Diagram
NOTE :
THE VOLTAGE FOR PARTS IN HOT CIRCUIT IS MEASURED USING
HOT GND AS A COMMON TERMINAL.
CAUTION !
Fixed voltage 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.
CAUTION
FOR CONTINUED PROTECTION AGAINST FIRE HAZARD,
REPLACE ONLY WITH THE SAME TYPE FUSE.
ATTENTION : POUR UNE PROTECTION CONTINUE LES RISQES
D'INCELE N'UTILISER QUE DES FUSIBLE DE MEMO TYPE.
RISK OF FIRE-REPLACE FUSE AS MARKED.
"This symbol means fast operating fuse."
"Ce symbole reprèsente un fusible à fusion rapide."
4A/125V
MAIN 4/4
Ref No. Position
IC601 W-2
IC602 Y-3
Q601 V-2
Q602 V-2
Q604 W-2
Q605 X-1
Q606 Y-2
Q607 X-2
Q608 Z-3
Q609 Y-2
Q610 Y-1
Q611 Z-1
Q612 Z-2
J261 Z-3
CN601 V-1
CN602 AA-3
VR601 W-2
TEST POINTS
ICS
TRANSISTORS
ADJUSTMENT
CONNECTORS
CRT
Ref No. Position
Q501 F-2
Q502 F-2
Q503 F-1
CN501 G-1
CL501B E-2
CL504B E-2
CONNECTORS
TRANSISTORS
H.V./CRT Schematic Diagram
T7204SCM4
VOLTAGE CHART (Power off mode)
Ref. No. 1 2 3
IC602 2.0 0 3.2
Ref. No. E C B
Q608 0.7 3.2 0
Q610 0.6 4.0 1.2
Q611 0.1 3.2 0.2
H.V.
Ref No. Position
IC551 A-2
Q571 C-2
Q572 C-2
Q591 C-1
J551 D-2
J552 C-1
J553 C-2
J563 C-2
CL501A D-2
CL502A D-2
CL503A D-1
CN571 B-2
ICS
TRANSISTORS
CONNECTORS
TEST POINTS
* NOTE:
The capacitor (C602, C603) is either type A or type B.
These two types are exchangeable and can be equally
used whichever the model is. The difference between
type A and type B is shown in the table below.
Type A
Type B
C602 C603
4700pF
0.01µF
WIRE
0.01µF