Toshiba 27D46 Service Manual page 38

A B
8
FROM AV OUT
7
C2552
IF_OUT1_P
0.01 B
IF_OUT2_N
0.01 B
+5V
6
SIF
5
IF_AGC
4
TU_DATA
TU_CLK
I2C1CLK
FROM/TO ASIC
I2C1DATA
GPIO1
GPIO2
I2C1DATA
3 I2C1CLK
+3.3V
FROM/TO AV OUT
ADATA_DEMOD
SIF
IF_AGC
2
TU_DATA
B2407
TU_CLK
FCM1608KF-151T06
F/E+1.8V
GND
1
A B
G-23
C
FRONT END SCHEMATIC DIAGRAM
C2401 R2471
0.1
B 47
R2442
100
C2555 R2443
100 B2408
FCM1608KF-151T06 C2503
1 B
C2504
0.1 B
R2505
4.7K
100 99 98 97
NC PRM_1
C2476
AMP
Q2402 NC SCAN_EN
0.1 B
KTC4075E-Y-RTK/P
NC TEST_MODE
AMP
Q2401
NC DIN 0
KTC4075E-
C2500
Y-RTK/P
VDD_COR_ADC
0.001 B
VSS_COR_ADC
VSS_COR1
0.1 B
C2498
NC SCAN_MODE
C2499 1 B
VDD_COR1
NC DIN_1
R2503
IF_AGC
2.2K
C2497 NC RF_AGC
0.1 B NC IIC_ADDR
NC DIN_2
VSS_PER1
R2556
TUNER_SDA
100 C2502
VDD_PER1
R2516 0.1 B
TUNER SCL
100
HOST SCL
HOST SDA
NC DIN_3
C2501
VDD_COR2
0.001 B
VSS_COR2
STAT0/SCLK
NC
DIN_4
NC
26 27 28 29
NC NC NC NC
NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
C
D E
(DIGITAL PCB)
C2505
X2402
100GA02502
56P CH
25.000MHz
C2479
+-50ppm
100P CH
L2402 C2508
0.22uH 1 B C2513
R2508
C2509 0.1 B
1M
0.1 B C2514
1 B
96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76
VD_CLO
VD_PLO
VS_PLO
LO_OUTN
100 PRM_0 78 VD_COSC LO_OUTP
99 AVDD_COR_ADC 77 VS_COSC VSS_COR5
98 AVSS_COR_ADC 76 VS_CLO VDD_COR5
97 AIN1_P DRX_A9
CRX_A8_DSTR
AU_SCK_DSTR
AU_SD
FRONT END IC
AU_TEST
IC2402
AU WS
CAS-220/CS
VDD_PER4
RESET N
VSS_PER4
OOB_AGC/PRM_3
26 STAT1/SDAT 50 STAT2/LOCK PRM_2
27 DIN_5 49 MPG_DO7 SDAT/STAT7
28 MPG_CLK 48 MPG_DO6 SCLK/STAT6
29 MPG_VALID 47 DIN_9 VSS_COR4
STAT5
VDD_COR4
STAT4
STAT3
30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC
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.
D E
F G
NC
NC
C2515
0.1 B
NC
JG2501
GPIO1
R2472
ADATA_DEMOD
47
NC
GPIO2
C2516
0.001 B
GPIO5
ATSC/CLEAR CABLE ASIC
IC2401 ZR39640BGCG-B1
C2517
NC
0.001 B
NR2409
NC
4D02WGJ0220TCE
R3 TSDATA
T2 TSCLK
R4 TSFRAME
R5 TSDVALID
NC
C2518 0.001 B
1 B
C2519
F G
H
8
7
6
5
4
(6/8 FRONT END)
3
2
PCBDH0
CEE139
1
H
G-24