Toshiba 19DV616DG Service Manual page 130

A B
8
7
FROM/TO REGULATOR
AT+1.8V_2
AT+3.3V
AT.5.8V
GND
6
KTC3875S_Y_RTK
R3211
RXT_RST#
2.7K
GND
5
AT+3.3V
Q3208
KTC3875S_Y_RTK
R3216
RXT_RST#
1K
4
GND
L3201
AT.5.8V
10uH
CDRH8D43NP
3
2
NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
1
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
A B
H-25
C
SW
Q3206
KTA1664-Y(GP)
3.3 3.3
2.6
SW
Q3205
0
2.7
0
SW
Q3207
KTA1664-Y(GP)
3.4 3.4
2.7
SW
0.6
3.2
0
VCC 3.3V DC/DC
L3202
C3205
0.1 B 10uH
CDRH8D43NP
1.2 0
1.2 5.8
8 7 6 5
EN COMP FB GND
SS BST VIN SW
1 2 3 4
5.8 3.3
2.2 8.7
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.
C
D E
REGULATOR2 SCHEMATIC DIAGRAM
(MAIN PCB)
HDMI+1.8V
HDMI+3.3V
AT+3.3V
W827
AT+3.3V
GND
ATTENTION
:LES PIECES REPAREES PAR UN
DANGEREUSES AN POINT DE VUE SECURITE
N'UTILISER QUE CELLS DECRITES
DANS LA NOMENCLATURE DES PIECES
D E
F G
AT1.8V_1_REG IC
IC3206 BD7820FP
V_C V_IN GND V_OUT V_ADJ
1 2 6 4 5
AT+1.8V_1
2.9 3.4 0 1.8 0.7
R3217 R3218
1/16W 1K +-1%
1K
3.3
3.3
0
0
1.8 AT+1.8V_2
NC
AT+1.8V_REG.IC
IC3204
RP131H181D-T1-F
3.4 3.4 P.CON+3.3V
SW
2.7
Q3200
KTA1664-Y(GP)
SW
Q3201
KTC3875S_Y_RTK
0.6
R3229
SYS_POWER_H
3.2
1K
0
CAUTION
:SINCE THESE PARTS MARKED BY ARE
ETANT
CRITICAL FOR SAFETY,USE ONES
DESCRIBED IN PARTS LIST ONLY
F G
H
8
7
6
FROM/TO SCALER
GND
AT+1.8V_1
AT+1.8V_2
RXT_RST#
AT+3.3V
GND
SYS_POWER_H
5
TO DVD_INTERFACE/AV_SWITCH
P.CON+3.3V
TO JACK
GND
P.CON+3.3V
GND
TO INTERFACE_HDMI IC
HDMI+1.8V
4
HDMI+3.3V
GND
TO SOUND AMP MUTE
P.CON+3.3V
AT+3.3V
GND
TO TUNER
3
P.CON+3.3V
TO SUB MICON
P.CON+3.3V
GND
2
PCBF40
CMH143
1
H
19DV616DG H-26