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Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
4. TROUBLE SHOOTING
DVB-T/H DIB9080 Circuit diagram
SRAM like
1%
SPI or SD (1 and 4 bits)
0
0
1
Host Interface Type
1
INT_SELECT0
0
I2C Control
INT_SELECT1
1
0
1
0.1u
C716
0.1u
C715
R718
22K
1M
R719
22nH
L703
33nH
33nH
L714
NA
L713
1.5p
L708
L707
5.1K
R713
R720
470
VDD_18_CORE
N9
VDD_BANK_0
VDD_BANK_1
A12
VDD_CORE_DEMOD
N11
VDD_CORE_HOST
A11
N10
VDD_CORE_MAC
V
SS1
F11
F7
V
SS2
V
SS3
F8
V
SS4
G7
V
SS5
G8
H7
V
SS6
V
SS7
H8
V
SS8
L7
V
SS9
M12
RFU4
A9
RFU5
A10
RFU6
RFU7
A13
RFU8
B13
C8
RFU9
SW1
M2
M1
SW2
N3
SW3
L3
SW4
SWANT
N2
A2
VBG
N8
VDDBB
VDDLO
C1
VDDMIX
N7
N6
VDDRF1
A5
L1
LNA2_P
K1
LNA3_N
N5
LNA3_P
N4
B1
PLL_VCC
RESERVED1
A3
C7
RESERVED2
RESER
V
ED3
C10
L10
RESETN
RFU
C11
A1
RFU1
C9
RFU10
N1
RFU11
RFU12
N13
A4
RFU2
RFU3
A7
A8
D11
HOST_BUS14
C13
HOST_BUS2
K13
K11
HOST_BUS3
J13
HOST_BUS4
J11
HOST_BUS5
H13
HOST_BUS6
HOST_BUS8
G13
HOST_BUS9
G11
HOST_VUS7
H11
INT_SELECT0
L9
L8
INT_SELECT1
LF_N
G1
F1
LF_P
J1
LNA1_N
H1
LNA1_P
LNA2_N
GNDRF3
GNDRF4
F6
G3
GNDRF5
G6
GNDRF6
H3
GNDRF7
GNDRF8
H6
GNDRF9
J3
GPIO1
B12
F13
GPIO2
GPIO3
N12
M13
GPIO4
L13
HOST_BUS0
HOST_BUS1
L11
HOST_BUS10
E13
E11
HOST_BUS11
D13
HOST_BUS12
HOST_BUS13
BIASRES
B2
CLK_CFG
A6
CRYSTAL_N
E1
D1
CRYSTAL_P
DGND1
C3
C4
DGND2
DGND3
C5
C6
DGND4
GNDRF1
D3
GNDRF10
K3
L4
GNDRF11
GNDRF12
L5
L6
GNDRF13
E3
GNDRF2
F3
10nH
U705
DIB9080H
L705
15nH
L712
15nH
0.7p
L711
C709
22nH
L710
L706
22nH
FA-238_30MHz
30MHz
1
2
3
4
0.1u
X700
C711
CN701
1
+1.8V_DVB_PLL
180p
C726
0.1u
C714
0.8p
C713
1
4
2 3
P1
1
2 P2
15nH
C712
TCM12B51-900-2P
U704
10nH
L704
+1.0V_DIB_MAC
+1.0V_DIB_CORE
20p
C728
C721
TP700
0.1u
TCC_2.6V_MISC
C720
0.1u
C719
0.1u
22p
C727
C710
2.2p
56K
R716
10K
R717
C718
0
.1u
0.1u
C717
C725
1u
10p
C724
1000p
C723
RF
0
R715
MS-156NB
SW700
ANT
G1
G2
TCC_2.6V_MISC
C729
20p
SAEEB897MCA0B00
FL700
2
C1
3
C2
GND
5
1
IN
OUT
4
3K
R714
+1.8V_DVB_RF
C722
0.1u
DIB_DATA[7]
DIB_RDY
DIB_DATA[2]
DIB_RESET_N
DIB_CS_N
DIB_OE_N
DIB_IRQ
DIB_ADDR[2]
DIB_ADDR[1]
DIB_WE_N
DIB_DATA[1]
DIB_DATA[0]
DIB_DATA[3]
DIB_DATA[4]
DIB_DATA[5]
DIB_DATA[6]
ARM926 Main
CODEC I/F
TV OUT
active HIGH
1
EHI boot mode
ARM926 Sub
1
JTAG I/F
Both core
UART
EHI_LCD LDO & CAPS Removed
RTCK
TMS
Always on state
BM[2:0]
JTAG selection
1
TDO
TDI
TCK
0
Test mode (Not used)
SDO1
0
0
0
SDO0
SRAM like I/F
LCD I/F
000b
270p
C622
1
NTRST
R619
4.7K
URXD0
A9
E8
URXD1
B7
URXD2
URXD3
D8
UTXD0
B9
A8
UTXD1
C7
UTXD2
UTXD3
A7
K12
VBUS
A13
VREF
XI
G12
G13
XO
TCC_2.6V_MISC
SCMD0
M4
SCMD1
M9
N3
SDCKE
M5
SDI0
M10
SDI1
SDO0
N4
N10
SDO1
D12
TC
K
E11
TDI
TDO
F11
G11
TEST
G10
TMS
F8
UCTS0
UCTS1
B8
C9
URTS0
URTS1
C8
L11
PWRGP2
D7
PWRGP5
C1
PWRL
CD
PWRL
CD1
F1
PWRMEM
E9
PWROSC
H12
H11
PWRPLL
A10
PWRSDR_1
PWRSDR_2
B4
J8
PWRSDR_3
K11
PWRUSB
REX
T
J11
J7
RSTN
RT
CK
D13
N5
SCLK0
SCLK1
N9
LPD_9
B1
LRCK
E7
LWEN
E3
LXA0
F7
A6
MCLK
NTRST
E12
D9
PWR12_1
D10
PWR12_2
E10
PWR12_3
PWR12_4
F10
PWR12_5
H7
PWR12_6
H9
C13
PWRDA
C
PWREHI
J4
G9
PWRGP0
G8
PWRGP1
A3
LPD_15
LPD_16
A1
A2
LPD_17
G1
LPD_18
G6
LPD_19
E5
LPD_2
LPD_20
G7
F2
LPD_21
LPD_22
F3
F4
LPD_23
D2
LPD_3
LPD_4
D3
LPD_5
D4
LPD_6
C2
LPD_7
C3
LPD_8
B2
M3
HPXD5
M2
HPXD6
HPXD7
M1
HPXD8
L4
J5
HPXD9
B12
IREF
LCSN0
E1
F6
LCSN1
LOEN
E2
LPD_0
E4
D1
LPD_1
B3
LPD_10
LPD_11
D5
C4
LPD_12
E6
LPD_13
D6
LPD_14
HPWRN
J1
HPXA0
H4
HPXA1
H5
HPXD0
N2
K6
HPXD1
L3
HPXD10
HPXD11
K4
L1
HPXD12
HPXD13
H6
HPXD14
L2
HPXD15
K3
K1
HPXD16
HPXD17
J3
HPXD2
K5
N1
HPXD3
J6
HPXD4
GPIO_B3
N7
GPIO_B4
L7
GPIO_B5
K7
M8
GPIO_B6
GPIO_B7
L8
N8
GPIO_B8
GPIO_B9
K9
GPIO_C30
F5
GPIO_C31
G2
GPIO_F25
H1
GPIO_F26
G5
G4
GPIO_F27
J2
HPCSN
HPCSN_L
H2
HPINTO
H3
HPRDN
K2
L12
GPIO_A12_CDATA
GPIO_A4
L6
L5
GPIO_A5
GPIO_A6
N12
GPIO_A7
M13
N13
GPIO_A8
M11
GPIO_A9
GPIO_B0
M6
N6
GPIO_B1
L9
GPIO_B10
GPIO_B11
L10
GPIO_B12
K10
J9
GPIO_B13
GPIO_B14
J10
N11
GPIO_B15
GPIO_B2
M7
A11
GND2
B10
GND3
GND4
B11
C10
GND5
C11
GND6
D11
GND7
F9
GND8
GND9
H8
GNDDA
C
C12
GNDOSC
H13
F13
GNDPLL
J12
GNDUSB
B5
GPIO_A0
GPIO_A1
A5
GPIO_A10
M12
GPIO_A11
L13
U601
TCC7920S
BCLK
B6
H10
BM0
F12
BM1
E13
BM2
G3
BPEN
CO
M
P
A12
DA
C
OUT
B13
DAI
C5
C6
DAO
DM
J13
DP
K13
A4
GND1
GND10
K8
0.1u
C603
C601
0.1u
TV_OUT_3.0V
C623
270p
0.1u
C612
R609
0
+3.0V_AUDIO
C602
0.1u
TP603
TCC_2.7V_EHI_LCD
0.1u
C609
TCC_1.2V_CORE
TP600
TCC_2.6V_MISC
TV_OUT_3.0V
0
R622
C604
0.1u
TP602
TP605
0.1u
C607
TCC_2.7V_EHI_LCD
TCC_2.6V_MISC
TCC_1.2V_CORE
R617
100K
0.1u
C605
C613
0.1u
R634
10K
0.1u
C611
C610
39
R632
0.1u
1K
R626
VREG_MSMP_2.7V
TP604
R618
4.7K
R630
12K
TP607
C600
0.1u
1M
R607
C608
0.1u
TCC_2.6V_SDR
12p
C615
TP606
C606
0.1u
B1
5
GND
S
1
VCC
2
FSA4157L6X
U600
A
3
4
B0
6
DNI
R624
TCC_2.6V_MISC
R631
DNI
R608
100K
10K
R616
2
3
4
12MHz
DSX321G(12MHz,8PF)
X600
1
L601
3.3uH
TCC_2.7V_EHI_LCD
TCC_2.6V_SDR
R628
1.2K
12p
C614
0.1u
C621
DIB_DCDC_EN
DIB_LDO_EN
DIB_PWR_EN
TV_OUT_3.0V
TCC_RESET_N
TCC_RESET_JTAG_N
EBI2_DATA(0)
EBI2_DATA(11)
EBI2_DATA(10)
EBI2_DATA(9)
EBI2_DATA(8)
EBI2_DATA(7)
EBI2_DATA(6)
EBI2_DATA(5)
EBI2_DATA(4)
EBI2_DATA(3)
EBI2_DATA(2)
EBI2_DATA(1)
MM_LCD_VSYNC_BP
TV_OUT
LCD_BYPASS_ENABLE
EBI2_DATA(15)
EBI2_DATA(14)
EBI2_DATA(13)
EBI2_DATA(12)
MCLK
TCC_UART_RXD
TCC_UART_TXD
MM_LCD_VSYNC
DIB_CS_N
LCD_BYPASS_ENABLE
TCC_CS_N
TCC_INT
DIB_OE_N
BCLK
DA_OUT
EBI2_OE_N
EBI2_WE_N
EBI2_ADDR[1]
LRCK
MM_LCD_DATA[0]
MM_LCD_DATA[6]
MM_LCD_DATA[15]
MM_LCD_ADS_N
MM_LCD_WE_N
MM_LCD_RD_N
DIB_IRQ
DIB_RDY
DIB_DATA[3]
DIB_DATA[4]
DIB_DATA[5]
DIB_DATA[6]
DIB_DATA[7]
DIB_DATA[2]
DIB_DATA[1]
DIB_DATA[0]
DIB_WE_N
DIB_ADDR[1]
DIB_ADDR[2]
DIB_RESET_N
MM_LCD_CS_N
EBI2_DATA(0:15)
MM_LCD_DATA[14]
MM_LCD_DATA[13]
MM_LCD_DATA[12]
MM_LCD_DATA[11]
MM_LCD_DATA[10]
MM_LCD_DATA[9]
MM_LCD_DATA[8]
MM_LCD_DATA[7]
MM_LCD_DATA[5]
MM_LCD_DATA[4]
MM_LCD_DATA[3]
MM_LCD_DATA[2]
MM_LCD_DATA[1]
DVB-T/H TCC7920S Circuit diagram
Содержание KB770
Страница 1: ...Service Manual Model KB770 Internal Use Only Service Manual KB770 Date November 2008 Issue 1 0 ...
Страница 155: ... 156 LGE Internal Use Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes ...
Страница 165: ... 166 LGE Internal Use Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes ...
Страница 179: ... 180 LGE Internal Use Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes ...