Sylvania 6319CCB, Service Manual, Page: 56 / 108

WF1
V-OUT
J191 J190
RF-SW
J192
CTL
WF3
VR601
+B ADJ
WF5
J070
B-OUT
J261
+B
J141
A-OUT
-YCA
J139
C-PB
WF6
WF8
J281
GND
J138
AGC
1-9-15 1-9-16 1-9-17
Main CBA Top View
BT5200F01011
MAIN CBA
Ref No. Position
IC201 C-2
IC202 D-2
IC281 D-4
IC301 A-4
IC401 C-4
IC601 E-4
IC602 E-2
IC801 A-1
Q201 A-3
Q202 E-3
Q205 B-2
Q206 C-2
Q302 A-3
Q303 A-3
Q401 C-3
Q402 C-3
Q601 E-5
Q602 E-5
Q604 E-4
Q605 E-1
Q606 E-2
Q607 E-2
Q608 E-1
Q609 E-1
Q610 E-2
Q611 E-3
Q612 D-1
Q801 A-1
Q871 C-5
Q872 C-5
Q873 C-5
Q874 C-4
Q875 C-5
CN201 D-3
CN202 D-4
CN301 A-5
CN302 A-5
CN303 B-5
CN402 D-4
CN403 A-4
CN404 B-4
CN601 D-5
CN602 E-3
CN801 A-2
J70 A-5
J139 B-5
J141 B-5
J190 C-5
J191 C-5
J192 C-5
J237 D-2
J261 E-3
J281 B-5
VR601 E-3
ICS
TRANSISTORS
ADJUSTMENT
TEST POINTS
CONNECTORS
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
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 !
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.