Disney DT1300-C Service Manual page 32

Main CBA Top View
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.
FOCUS-VR
(UPPER SIDE)
SCREEN-VR
(LOWER SIDE)
TP300
GND
R583
(Hf Adjustment)
0
VR661
+B ADJ
TP301
AGC
CAUTION: FOR CONTINUED PROTECTION AGAINST RISK
FIRE, REPLACE ONLY WITH THE SAME TYPE 4A, 125V FUSE.
ATTENTION: UTILISER UN FUSIBLE DE RECHANGE DE
4A/125V
MÊME TYPE DE 4A, 125V.
NOTE :
The voltage for parts in hot circuit is measured
TP601
using hot GND as a common terminal.
+B
D316 Cathode
(C-Trap Adjustment)
7-11
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.
7-12
MAIN CBA
Ref No. Position
ICS
IC101 D-3
IC151 D-2
C-1
IC301
B-2
IC551
C-3
IC601
IC801 D-1
TRANSISTORS
D-2
Q121
Q321 B-2
Q351 B-1
Q571 B-3
Q572 B-2
Q601 B-4
C-4
Q602
C-3
Q662
C-2
Q671
Q676 D-2
Q681 C-2
C-3
Q682
C-3
Q683
CONNECTORS
CN391 A-1
CN571 A-2
D-4
CN691
D-1
CN101A
B-2
CN301A
CN581A A-2
CN801A D-1
CN802A E-4
CN811A D-1
CN812A E-4
TEST POINTS
TP300 A-3
TP301 A-1
A-4
TP601
VARIABLE RESISTOR
VR661 A-1
BL6310F01011-1