HP LC3260N Service Manual page 58

A B
8
7
R2533 15K
R2534 15K
C2630
0.1 B
6
I2SCLK_INC
LEVEL_SHIFT
Q2404 KTK5132E
5
I2SWS_INC
2.6
LEVEL_SHIFT
Q2401 KTK5132E
I2SDATA_INC
1.5 1.0
3.3
+3.3V
4
X_TUNER_SDA
X_TUNER_SCL
TUNER_SCL
TUNER_SDA
3
TWIRE_TXDC
TWIRE_RXDC
3.3
S
LEVEL_SHIFT
Q2403
G
KTK5132E D
3.3
RX_[X240]
LEVEL_SHIFT
FROM/TO POWER2
Q2406
TX_[X240] KTK5132E
DTV_ON-H
UNREG+5V
UNREG+4V_M
2
UNREG+4V
AT+5V
+3.3V
+1.8V
+2.6V
D_GND
1
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
A B
H-43
C
AV OUT SCHEMATIC DIAGRAM
C2609
47P CH
C2611 C2623
C2608
47P CH 47P CH
C2612 C2624
47P CH
47P CH 47P CH
ATSC/CLEAR CABLE ASIC
LEVEL_SHIFT
IC2401 (12/14 I2S AUDIO) X240H
Q2407 KTK5132E
3.3 2.3
3.3
AK9
I2SWS_OUTA
3.3
3.3 3.3
AG7 I2SSCK_INC I2SSCK_OUTA AH10
1.7
3.3
AH6 I2SWS_INC AJ10 NC
I2SSOSCK_OUTA
3.3
3.3 3.3
AJ5 I2SSD_INC I2SSD_OUTA AG11
I2SWS_OUTB AK10 NC
NC AK4 I2SSCK_IND I2SSCK_OUTB AH11 NC
NC AJ6 I2SWS_IND I2SSD_OUTB AJ11 NC
NC AK5 I2SSD_IND I2SSOSCK_OUTB AG12 NC
3.4
SPDIF_OUTA AJ9
R2515
R2508 4.7K
4.7K
B2417
DAC_VDDI
BLM18BD151SN1
R2512 B2419
DAC_AVDDQ
R2509 4.7K BLM18BD151SN1
4.7K
3.3
B2418
3.3 DAC1_AVDD
S
3.3
BLM18BD151SN1
G
D
3.3
B2416
VDDC_1.8V
BLM18BD151SN1
DAC_2.5V
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.
C
D E
(DIGITAL PCB)
NC
C2621 47P CH
C2622 47P CH
ATSC/CLEAR CABLE ASIC
IC2401 X240H (13/14 VIDEO ENCODER)
HSYNC_OUT AJ8 NC
VSYNC_OUT AH9 NC
HSYNC2_OUT AG10 NC
VSYNC2_OUT AK8 NC
1.1
DAC0_R
R AC2
1.1
DAC1_G
G AC1
1.1
DAC2_B
B AD2
0 R2528 33
DAC3_COMP
COMP AD1
R2529 R2409
1
QRSET
RSET AE1
680 33
0 R2530 33
DAC4_R
C_R AB2
R2531 33
0
DAC5_G
Y_G AA2
0
DAC6_B
COMP_B AA1
R2532 R2410
1
TRSET
R2SET AB1
680 33
1.8
DAC_VDDI
AE2 VDDDI VDD2DI Y2
1.8
AF3 VSSDI VSS2DI Y1
1.8
DAC_AVDDQ
AC3 AVDDQ A2DDQ Y3
0
AD4 AVSSQ A2VSSQ AA4
2.6
DAC2_AVDD
AE4 A1VDD A2VDD AB4
2.6
AF4 A1VDD A2VDD AC4
0
AD3 AVSSN A2VSSN AA3
0
AE3 AVSSN A2VSSN AB3
R2535
R2536
D E
F G
34
L2414 NLV25T
V[PR]_OUT
0.47uH
33
L2412 NLV25T
Y_OUT
0.47uH
35
NLV25T
L2411
U[PB]_OUT
0.47uH
36
NLV25T
L2413
CVBS_OUT
0.47uH
ATSC/CLEAR CABLE ASIC
IC2401 (14/14 USB/SERIAL) X240H
0
USBA_P
AH23 USBPA RDA AJ21 NC
0
USBA_N
AG22 USBNA TDA AH21 NC
0
USBB_P
AK24 USBPB CTSAb AK22 NC
0
USBB_N
AJ23 USBNB RTSAb AG21 NC
R2537
3.3
AK23 USB_OVRCUR
100K
TWIRE_RXDB
NC AG19 IRRXDA RDB AJ22
TWIRE_TXDB
NC AK20 IRTXDA TDB AH22
NC AH19 IRBIDB
3.3
TWIRE_RXDC
NC A13 CAPT1 RDC C13
3.3
TWIRE_TXDC
NC D14 COMP1 TDC B13
15K
15K
F G
H
8
7
FROM/TO FRONT END
6
T_FAT_IFP
T_FAT_IFN
FAT_IFAGC
X_TUNER_SDA
X_TUNER_SCL
RF_SW
AFT_1
AFT_2
SD-H
5
TO ASIC
DTV_RESET
4
3
2
PCBDH0
CEF169
1
H
H-44