Front End - Toshiba 26HF66 Service Manual

A B
8
7
FROM VIDEO DECODER
DVIDATA0
DVIDATA1
DVIDATA2
DVIDATA3
DVIDATA4 ATSC/CLEAR CABLE ASIC IC
DVIDATA5
IC2401 X240H
DVIDATA6
DVIDATA7
DVIDATA8
DVIDATA9
DVIDATA10
DVIDATA0
DVIDATA11 W3 DVIDATA(0)
DVIDATA12
DVIDATA1
DVIDATA13 W2 DVIDATA(1)
DVIDATA14
6 DVIDATA2
DVIDATA15 W1 DVIDATA(2)
DVICLK
DVIDATA3
V1 DVIDATA(3)
DVIHSYNC
DVIVSYNC
DVIDATA4
V2 DVIDATA(4)
DVIDATA5
V3 DVIDATA(5)
DVIDATA6
V4 DVIDATA(6)
DVIDATA7
U1 DVIDATA(7)
DVIDATA8
U2 DVIDATA(8)
DVIDATA9
U3 DVIDATA(9)
DVIDATA10
U4 DVIDATA(10)
5 DVIDATA11
T1 DVIDATA(11)
DVIDATA12
R2 DVIDATA(12)
FROM HDMI
DVIDATA13
R3 DVIDATA(13)
DVIDATA0 DVIDATA14
R4 DVIDATA(14)
DVIDATA1
DVIDATA2 DVIDATA15
P1 DVIDATA(15)
DVIDATA3
DVIDATA4
DVIDATA16
P2 DVIDATA(16)
DVIDATA5
DVIDATA6 DVIDATA17
P3 DVIDATA(17)
DVIDATA7
DVIDATA8 DVIDATA18
P4 DVIDATA(18)
DVIDATA9
DVIDATA10 DVIDATA19
N1 DVIDATA(19)
DVIDATA11
DVIDATA12 DVIDATA20
N2 DVIDATA(20)
4 DVIDATA13
DVIDATA14 DVIDATA21
N3 DVIDATA(21)
DVIDATA15
DVIDATA16 DVIDATA22
N4 DVIDATA(22)
DVIDATA17
DVIDATA18 DVIDATA23
M1 DVIDATA(23)
DVIDATA19
DVIDATA20
DVIDATA21
DVIDATA22 DVICLK
R1 DVICLK
DVIDATA23
DVICLK DVIHSYNC
T2 DVIHSYNC
DVIHSYNC
DVIVSYNC DVIVSYNC
T3 DVIVSYNC
DVIDE
DVI_SCDT DVIDE
T4 DVIDE
GPIOC15
3
2
FROM POWER2
+3.3V
+1.8V
D_GND
1
A B
G-27
C D
ATSC/CLEAR CABLE ASIC IC
(10/14 DVI)
IC2401 X240H (9/14 DVO)
NC AJ19 DVODATA(0)
DVSYDATA(0) AJ4 NC
NC AK19 DVODATA(1)
DVI_SCDT
DVSYDATA(1) AH5
NC AG18 DVODATA(2)
DVI_HPD0
DVSYDATA(2) AG6
NC AJ18 DVODATA(3)
DVSYDATA(3) AJ3 NC
NC AH18 DVODATA(4)
AH4 NC
DVSYDATA(4)
NC AG17 DVODATA(5)
DVSYDATA(5) AG5 NC
NC AK18 DVODATA(6)
DVSYDATA(6) AJ2 NC
NC AH17 DVODATA(7)
DVSYDATA(7) AH3 NC
NC AG16 DVODATA(8)
NC AK17 DVODATA(9)
DVSCLKA AK3 NC
NC AJ17 DVODATA(10)
NC AH16 DVODATA1(1)
NC AG15 DVODATA1(2)
L2 NC
TDATA(0)
NC AK14 DVODATA(13)
TDATA(1) L3 NC
NC AJ14 DVODATA(14)
TDATA(2) K1 NC
NC AH14 DVODATA(15)
TDATA(3) L4 NC
NC AG14 DVODATA(16)
TDATA(4) K2 NC
NC AK13 DVODATA(17)
TDATA(5) J1 NC
NC AJ13 DVODATA(18)
TDATA(6) K3 NC
NC AH13 DVODATA(19)
TDATA(7) J2 NC
NC AK12 DVODATA(20)
NC AG13 DVODATA(21)
TCLKA K4 NC
NC AJ12 DVODATA(22)
TSTRTA M4 NC
NC AH12 DVODATA(23)
TVLDA L1 NC
TERA M3 NC
NC AJ16 DVOCLK0
NC AK16 DVOCLK1
NC AH15 DVODE
NC AJ15 DVOHSYNC
NC AK15 DVOVSYNC
NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
C D
E
FRONT END SCHEMATIC DIAGRAM
(DIGITAL PCB)
R2490
100
C2492 R2493
68P CH 100
C2606
ATSC/CLEAR CABLE ASIC IC
220P CH
IC2401 X240H
NC D26 VI_IN0
C2540
NC B26 VI_IN1
68P CH
C25 VI_IN2
NC A25 VI_IN3
C2541
NC D30 VI_IN4
220P CH
NC C29 VI_IN5
C2529
D28 VI_IN6
0.01 B
NC C27 VI_IN7
NC F30 VI_ATBM
NC E30 VI_ATBP
C2520
VI_REFM
D24 VI_REFM
0.1 B
VI_REFP
C24 VI_REFP
C2512 0.1 B VIBYPASS1
E29 VI_BYPASS1
C2513 0.1 B VIBYPASS0
B28 VI_BYPASS0
C2514 10 C
C2515 10 C D27 ADC0_AVDD
C26 ADC0_AVDD
B2408
ADC1.8V ADC0_AVDD
D25 ADC0_AVDD
BLM31PG601SN1
A26 ADC0_AVSS
B25 ADC0_AVSS
B27 ADC0_AVSS
B2407
ADC1.8V ADC1_AVDD
C30 ADC1_AVDD
BLM31PG601SN1
E28 ADC1_AVDD
D29 ADC1_AVDD
B29 ADC1_AVSS
B30 ADC1_AVSS
C28 ADC1_AVSS
B2410
+3.3V
A21 VI_AVDD33
BLM18BD151SN1
C2516 NC A23 FDC_IFP
0.1 B NC A22 FDC_IFM
NC B23 FDC_BYPASS
NC B24 FDC_REFP
NC A24 FDC_REFM
D23 FDC_AVDD
C21 FDC_AVDD
B2409
FDCFE1.8V FDC_AVDD
D22 FDC_AVDD
BLM31PG601SN1
C23 FDC_AVSS
B22 FDC_AVSS
C22 FDC_AVSS
E27 VI_GUARD
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

(11/14 FRONT END)

FS_OUTP A19 NC
B2411
FS_DVDD FDCFE1.8V
FS_OUTN B19 NC
BLM18BD151SN1
FS_DVDD A18
FS_DVSS B18
B2412
FDCFE1.8V
FS_AVDD
FS_AVDD C19
BLM18BD151SN1
FS_AVSS C18
FDC_AGC A17 NC
FDC_CRX D11 NC
FDC_DRX D10 NC
MPEG_D0 A6 NC
MPEG_D1 B7 NC
MPEG_D2 C8 NC
MPEG_D3 A7 NC
MPEG_D4 D9 NC
MPEG_D5 B8 NC
MPEG_D6 C9 NC
MPEG_D7 A8
NC
MPEG_CLK B9 NC
MPEG_SYNC B10 NC
MPEG_DATA_EN C10 NC
MPEG_ERR A9 NC
C2537 R2498
0.1 B 100
X_FAT_IFP
FAT_IFP A28
C2538 R2499
X_FAT_IFN
FAT_IFM A27
0.1 B 100
C2542
AGC_SDMX A15 NC
0.1 B
R2495
X_FAT_IFAGC
AGC_SDM1 B15
1K
AGC_SDM2 C15 NC
GPIOC(0) D16
GPIOC(1) C16
GPIOC(2) B16 NC
GPIOC(3) A16
GPIOC(4) D17 NC
GPIOC(5) C17 NC
GPIOC(6) B17 NC
GPIOC(7) A10
GPIOC(8) C11
GPIOC(9) B11
GPIOC(10) D12
R2596
GPIOC(11) A11
R2597
GPIOC(12) C12
GPIOC(13) B12 NC
GPIOC(14) A12 NC
GPIOC(15) D13
F G
H
8
7
6
FROM/TO AV OUT
5
S_Y_IN
S_C_IN
T_FAT_IFP
T_FAT_IFN
4
FAT_IFAGC
X_TUNER_SDA
X_TUNER_SCL
RF_SW
3
SD-H
GPIOC[8]
AFT_1
AFT_2
220
IR_OUT_SENS
220
GLINK_SENS
2
PCBDH0
CEF151
1
H
G-28