Toshiba MW20H63 Circuit Diagrams page 40

A B
8
7
FROM AV IN/OUT
IF_P
IF_N
IF_AGC
6
GND
5
CVBS_IN/740_INIT
4
GND
3
2
1
A B
H-41
C
VIF/SIF SCHEMATIC DIAGRAM
JG2421
JG2422
JG2423
JG2424
W801
JG2426
JG2427
JG2428
JG2429
JG2430
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
C
D E
(DIGITAL PCB)
DTV_ASIC IC
IC2401 ZR39740HGCF-B0
R2445 C2476
B1 IFE_AIN_P
100 0.01 B
R2446 C2477
C1 IFE_AIN_N
100 0.01 B
R2448
A5 IF_AGC
2K +-1%
JG2418 B5 RF_AGC
JG2419 A6 AGC_SENSE
JG2420 B6 PWM_OUT
P17 SADATA
C2536
G2 VFE_YIN
0.1 B C2537
H1 VFE_CIN
0.1 B
NC F3 VFE_CVBS3/SIF IN
C2550
10 C C2538
E3 VFE_CVBS2
0.1 B
F1 VFE_CVBS1
J2 VFE_VCM
G3 VFE_VREFP
G1 VFE_REFN
H3 VFE_IBEXT
E1 VFE_VBG
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
(5/6 VIF/SIF)
IFE_VCM C3
IFE_VREFP B2
IFE_VREFN B3
IFE_VBIAS D3
IFE_RBIAS C2
F G
H
8
7
6
5
JG2431
JG2432
4
JG2433
JG2434
JG2435
GND
3
2
PCBDH0
CEF242
1
H
H-42