Toshiba 27A51 Service Manual page 29

A B
8
7
REG.+5V
IC051 KIA7805API
6
IN GND OUT
1 2 3
8.7 0 5.0
R055
27 2W
5
FROM/TO VIDEO SWITCH
CP051 (CP752)
IMSA-9130S-09L
1 P.CON+9V
2 SCL
3 SDA
4 NC
5 PIP P.CON+8V
6 GND
4 7 NC
8 PIP AFT NC
9 NC
3
FROM/TO VIDEO SWITCH
CP001 (CP751)
IMSA-9130S-09L
1 NC
2 PIP VIDEO
2
3 HD
4 VD
5 RGB B
6 RGB G
7 RGB R
8 GND
9 PIP SW
NOTE: THE RESISTOR MARKED F IS FUSE RESISTOR.
1
THE ALUMI ELECTROLYTIC CAPACITOR MARKED NP
IS NON POLAR ONE.
A B
C D
PICTURE IN PICTURE SCHEMATIC DIAGRAM
NOTE: NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
THE DC VOLTAGE AT EACH PART WAS MEASURED
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
C D
E F
(P-IN-P PCB)
LEVEL SHIFT
IC1803 TC7SET08F
R1801
1.5 0
GND
100 1/4W
0.8
0.8
VCC
0.8
5.0
0.7
NC
R1803
2.1
100 1/4W
R1805
3.7
L1801 100 1/4W
C779
3.2
10uH
16V 47 YK
5.0 0.1 NC 5.0
0
5 6 7
CONT NC VIN
0
NC
0
CN GND NC VOUT
4 3 2 1
0
2.2 0 0.1 NC NC
3.5
0
0
0
L1802
C1804 R1806
3.2
470uH 0607
15K
10V 100
YK
3.3
W808
NC
3.2
W886
0
SYNC SEP.
Q1808 0
8.5
2SA1037AK
R1815
8.5 R1823
0.2
0.8
470 C1828
1.2K
0.47 B
0
W807
C1809 0.5
H-BUFFER
V-BUFFER 0.01 B
Q1807
L753 Q1806 5.0 C1810
5.0 1.6
2SC2412K
100uH 0305 2SC2412K
0.01 B
0.1
0.4
0.2 0.7
CAUTION: SINCE THESE PARTS MARKED BY ARE ATTENTION:
CRITICAL FOR SAFETY,USE ONES
DESCRIBED IN PARTS LIST ONLY
E F
G
L1804
10uH
P-In-P
IC1801 M65664FP
0
SVM AVSS
(SUB)
C1821
2.0
ACK ADJ_USUB
0.01 B
RED BUFFER
SDATA AVDD Q1803
R1812
3.2
(DAC) 2SC2412K
5.0
3.0 390 3.0
SCLK YOUT/R_OUT
R1826
2.2
C1816 1K
2.0
DVDD1 ADJ_YSUB
R1813
0.01 B
GREEN BUFFER
5.0
3.0 390 Q1804
DVSS1 UOUT/G_OUT
2SC2412K 3.0
2.2
C1817 R1827 1K
2.0
BGPS ADJ_VSUB
R1814
0.01 B
BLUE BUFFER
5.0
3.0 390 Q1805
SCK VOUT/B_OUT
2SC2412K 3.0
2.2
R1825
0
BGPM TESTEN
1K W806
0.7
FSC
VD
0.4
TEST5 HD
0
TEST6 AVSS
(VCXO)
SWMG X'TAL
3.2
(PAL-N)
L1805
3.2
RESET X'TAL
10uH
(PAL-M)
0305
R1809 X1801 C1826
1.9
DVDD2 X'TAL
390 18P CH
(NTSC) 14.31818MHz
C1824
1.6
DVSS2 BAIS
0.22 B
C1825
1.3
MCK FILTER
0.033 B
R1819 C1827
3.2
CSYNCS AVDD
12K 0.22 B
(VCXO)
3.2 W810
AVSS AVDD
(ADC)
C1818
0.6
VRB VIN
(SYNC SEPA.) 0.01 B
C1819
1.1
VIN
VRT
(ADC)
0.1 B
C1836
C1837
0.01 B
6.3V 47 KA
LES PIECES REPAREES PAR UN ETANT
DANGEREUSES AN POINT DE VUE SECURITE
N'UTILISER QUE CELLS DECRITES
DANS LA NOMENCLATURE DES PIECES
G
H
8
7
6
5
4
3
2
PCB250
TEAA69
1
H