Toshiba MD20H63 Circuit Diagrams page 27

A B
8
7
FROM AV IN/OUT
IF_P
IF_N
6
IF_AGC
+5V
5
SIF/2ND_CVBS
GND
4
W801
CVBS_IN/740_INIT
3
2
1
A B
H-33
C D
VIF/SIF SCHEMATIC DIAGRAM
GND
C2533
JG2421
0.1 B
JG2422
0.1
AMP AMP
JG2423
Q2420 Q2421
KTC4075E-Y-RTK/P KTC4075E-Y-RTK/P
C2475
0.1
B R2447
47
C2479
47P CH
JG2424
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 (5/6 VIF/SIF)
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
B C2537
H1 VFE_CIN
0.1 B
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.
E
F G
IFE_VCM C3 JG2431
B2 JG2432
IFE_VREFP
IFE_VREFN B3 JG2433
IFE_VBIAS D3 JG2434
IFE_RBIAS C2 JG2435
GND
F G
H
8
7
6
5
4
3
2
PCBDH0
CEF242
1
H
H-34