VR1601
+B ADJ
D1311 Cathode
(C-Trap Adjustment)
GND
TP1303
R1583
(Hf0 Adjustment)
FOCUS-VR
(UPPER SIDE)
SCREEN-VR
(LOWER SIDE)
+B ADJ
J2023
Main CBA Top View < TV Section > (Type A)
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
1-10-23
BTD808F01012
1-10-24
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
*
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.
Type A
Type B
BTD808F01013
BTD808F01012
MMA CBA (Main CBA and CRT CBA)
MAIN CBA
Ref No.
Position
Ref No.
Position
IC1001
D-4
Q1621
C-3
IC1201
B-3
Q1622
C-4
IC1202
A-2
Q1623
C-3
IC1452
A-4
Q1731
B-4
IC1551
D-1
Q1736
B-4
IC1601
E-3
IC1602
D-3
CL501B
D-1
IC1603
D-3
CL502B
B-1
IC1604
D-2
CN001
C-4
IC1801
B-1
CN002
B-4
CN1571
D-2
Q1282
A-2
CN1601
D-4
Q1285
A-3
CN1801
A-1
Q1301
B-2
CN1802
A-4
Q1303
A-3
Q1304
B-4
J1734
B-4
Q1454
A-4
J2023
E-2
Q1571
C-1
TP1301
B-1
Q1572
C-1
TP1303
C-1
Q1591
C-1
TP1304
C-1
Q1601
E-3
TP1305
B-1
Q1602
E-3
TP1401
A-1
Q1604
E-3
TP1402
A-1
Q1605
C-2
TP1403
B-1
Q1606
C-2
TP1404
B-1
Q1607
C-2
TP1405
B-1
Q1608
D-2
TP1501
C-1
Q1610
C-2
TP1502
C-1
Q1612
C-2
TP1503
C-1
Q1613
C-2
TP1731
C-1
Q1614
C-2
TP1732
A-4
Q1615
D-3
TP1733
A-4
Q1616
C-2
Q1619
D-2
VR1601
E-2
VARIABLE RESISTOR
TEST POINTS
TRANSISTORS
ICS
TRANSISTORS
CONNECTORS