Sylvania 6513VD Service Manual page 51

Main CBA Top View < TV Section > (Type B)
CAUTION !
Fixed voltage ( or Auto voltage selectable ) power supply circuit is used in this unit.
If Main Fuse (F1601) 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.
This number "12" : Type A
This number "13" : Type B
4A 125V
D1311 Cathode
TP1303
(C-Trap Adjustment)
GND
1-10-27
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.
NOTE :
The voltage for parts in hot circuit is measured
using hot GND as a common terminal.
J2023 SCREEN-VR
R1583 FOCUS-VR
(Hf0 Adjustment) (UPPER SIDE) (LOWER SIDE)
+B ADJ
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:
*
Either type A or Type B of MMA CBA (Main CBA and
CRT CBA) is used. The difference between type A
and type B is shown in the table below.
MMA CBA (Main CBA and CRT CBA)
Type A
BTD808F01012
Type B BTD808F01013
MAIN CBA
Ref No. Position Ref No.
ICS TRANSISTORS
IC1001 D-4 Q1621
B-3
IC1201 Q1622
A-2
IC1202 Q1623
IC1452 A-4 Q1731
IC1551 D-1
Q1736
IC1601 E-3 CONNECTORS
D-3 CL501B
IC1602
IC1603 D-3 CL502B
IC1604 D-2 CN001
CN002
IC1801 B-1
TRANSISTORS CN1571
Q1282 A-2 CN1601
VR1601
Q1285 A-3
CN1801
+B ADJ
Q1301 B-2 CN1802
Q1303 A-3 TEST POINTS
Q1304 B-4 J1734
Q1454 A-4 J2023
Q1571 C-1
TP1301
Q1572 C-1 TP1303
Q1591 C-1
TP1304
Q1601 E-3 TP1305
Q1602 E-3 TP1401
J2023
Q1604 E-3 TP1402
+B ADJ
Q1605 C-2 TP1403
Q1606 C-2 TP1404
Q1607 C-2 TP1405
Q1608 D-2 TP1501
TP1502
Q1610 C-2
TP1503
Q1612 C-2
Q1613 C-2 TP1731
Q1614 C-2 TP1732
Q1615 D-3 TP1733
VARIABLE RESISTOR
Q1616 C-2
Q1619 D-2 VR1601
1-10-28
Position
C-3
C-4
C-3
B-4
B-4
D-1
B-1
C-4
B-4
D-2
D-4
A-1
A-4
B-4
E-2
B-1
C-1
C-1
B-1
A-1
A-1
B-1
B-1
B-1
C-1
C-1
C-1
C-1
A-4
A-4
E-2
BTD808F01013