Toshiba 27DF47 Service Manual page 31

A B
8
7
C002
6.3V 220
L001
22uH
6
DTV_DATA
SDA1
DTV_CLOCK
SCL1
FRON/TO MICON
5
AFT_MAIN
DTV_TX
DTV_RX
DEGI_ST_L
DIGITAL_SLECT_H
DTV_POWER_ON-H
DTV_RESET
SCL1
SDA1
+3.3V_D
DTV_POWER_ON-H
4
DTV_POWER_ON-H
TO AV SW/SOUND AMP/TONE CTL
+3.3V_D
SOUND_GND
TUNER_AUDIO[L]
TUNER_AUDIO[R]
3
FROM CHROMA/IF
TUNER_P.CON+5V
AT+5V_D
W878
FROM POWER
2
P.CON+9V
UN_REG.12V
R002
UN_REG.6V
1 3W
TUNER+30V
C005
GND
10V 2200 YK
NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
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
G-9
C
TUNER SCHEMATIC DIAGRAM
TU001 ENG36E03KF
0
NC NC 0 NC 2.5 NC 1.8 4.8 NC 0 31.4 3.1
3.1 2.4
C038
0.001 B
C040
0.1 B
YK
0607
2.2
3.2
3.4
3.2 2.2 W824
LEVEL CONVERT
Q006
2SK393800L
LEVEL CONVERT
3.4
Q005
2SK393800L
REG.+3.3V IC
DTV.P.ON_SW
Q003 IC002 BA00BC0WFP-E2
KTA1271_Y
4.8
5.0
4.2
V_C V_IN GND V_OUT V_ADJ
1 2 6 4 5
4.2 3.3
DTV.P.ON_SW
5.0 0.2
3.2
0
Q002
C010
3.2 KRC102SRTK
0
10V 100
YK
C006
R005
C011
0.33 B
1K 1/4W
0.1 B
C015
D003
10V 470 YK
1N4005-EIC
R018
1K
R019
4.7K 1/4W S826Y
8.0
R020
AFT
Q001 3.4 2.2K
3.9
2SA1530A
R004
0.22 3W
C
D E
(TV MT PCB)
NC 0
1.0 1.7 5.0 0 0 3.3
W850
REG. 1.8V IC
REG. +2.6V IC
IC004 LA5779-5
IC003 BA00BC0WFP-E2
V_IN V_OUT GND FB ON/OFF
V_C V_IN GND V_OUT V_ADJ
1 2 3 4 5
1 2 6 4 5
2.6 2.6 1.3 1.3 0
3.1 4.2 0 2.6 1.2
C051
C023 C012
220P B
10V 100 ZL
16V 1000 D001
L006
YK C052
33uH7313N SK34A
C021
0.0022 B
C033
0.33 B
220P B
C034
C025
1000
6.3V
0.1 B
ZL
R038
C026 33 +-1%
10V 1000
HS001
1/4W
YK
763WAAA115
R041_1
18 1/4W
R036 (W121)
33 1/4W
ATTENTION
:LES PIECES REPAREES PAR UN
NC NC NC
DANGEREUSES AN POINT DE VUE SECURITE
N'UTILISER QUE CELLS DECRITES
DANS LA NOMENCLATURE DES PIECES
D E
F G
TO CHROMA/IF
A_TUNER_CVBS
27.1
0.6 SW ON/OFF
Q007
KTC3875S_Y_RTK
3.5
FROM/TO CHROMA/IF
D_Y_OUT
D_Y_OUT
D_C_OUT
D_C_OUT
C053
CVBS
16V 4.7 KANP
CAUTION
:SINCE THESE PARTS MARKED BY
ETANT
CRITICAL FOR SAFETY,USE ONES
DESCRIBED IN PARTS LIST ONLY
CAUTION: DIGITAL TRANSISTOR
F G
H
8
7
6
5
4
3
2
ARE
PCB070
CMF094
1
H
G-10