JVC TV-20F242 Service Manual page 66

[SYSCON PCB POWER CIRCUIT DIAGRAM]
A B C
8
7
6
5
FROM/TO TV POWER
CD810 (CP810) CH28112A
1 GND
AT+13V
2 GND
AT+12V
3 AT+12V
MOTOR_GND
4 MOTOR GND
5 UNREG+8V
4
UNREG+8V
6 UNREG+8V
AT+13V
7 AT+13V
AT+30V
8 AT+30V
UNREG+8V
3
2
CAUTION: DIGITAL TRANSISTOR
1
NOTE:
THE DC VOLTAGE AT EACH PART WAS MEASURED
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
A B C
9V REG
IC603 KIA7809API
IN GND OUT
1 2 3
12.4 0 9.0
P.CON SW
Q605
2SB892
12.4 12.4
11.6
P.CON SW
Q609
0
DTC144EKA
8.5
0
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
No.51768
TV-20F242 TV-20F242
D E
POWER SCHEMATIC DIAGRAM
(SYSCON PCB)
8.9 5.1
REG.
Q602
5.6
8.9 4.9 2SC13840W
REG.
Q611
D610 5.5
2SD734
8.9 4.9
SB10-03A3 REG.
Q610
5.5
2SD734
R662
100
R4080
100
IC501 KIA7805API
IN
8.9 1
8.2
8.9 8.2
P.CON SW
Q501_1
2SD400E
CAUTION: SINCE THESE PARTS MARKED BY ARE ATTENTION:
CRITICAL FOR SAFETY,USE ONES
DESCRIBED IN PARTS LIST ONLY
D E
2-25 2-26
F G
12.4 8.5 P.CON+8V
REG.
Q606
9.1
2SC2120Y
8.9 5.1 P.CON+5V[CHROMA]
REG.
Q603
5.6
2SC13840W
P.CON+5V[TU1]
AT+5V[UCON]
AT+5V[BACKUP]
R644
8.7VREF
100 1/4W
5.7VREF[PCON]
5.7VREF[AT]
P.CON+9V
5V REG.
GND OUT
2 3
0 5.3
P.CON+5V
HS501
763WAA0081
GND
LES PIECES REPAREES PAR UN ETANT
DANGEREUSES AN POINT DE VUE SECURITE
N'UTILISER QUE CELLS DECRITES
DANS LA NOMENCLATURE DES PIECES
F G
No.51768
H
8
7
6
FROM/TO Y/C/A/H.AMP
P.CON+5V
GND
FROM/TO MICON
AT+5V[BACKUP]
AT+5V[UCON]
AT+12V
5
P.CON+5V
MOTOR_GND
GND
FROM/TO CHROMA/IF
AT+30V
P.CON+5V[CHROMA]
P.CON+5V[TU1]
P.CON+8V
8.7VREF
4
5.7VREF[PCON]
5.7VREF[AT]
AT+13V
P.CON+5V
GND
FROM/TO I/O
AT+5V[UCON]
P.CON+9V
GND
3
FROM/TO SOUND AMP
P.CON+9V
P.CON+5V
GND
FROM/TO HIFI
P.CON+9V
P.CON+5V
GND
2
PCB010
VMX188
1
H