Sanyo LCD-19XH7 User manual

Model No. LCD-19XH7
Service Ref.No. LCD-19XH7-00
SERVICE MANUAL LCD Television
Product Code: 1-130-232-17
Original Version
Chassis Series: UE7-L
N8JW
Contents
FILE NO.
Give complete "SERVICE REF. NO." for
parts order or servicing.It is shown on the
rating lable at the cabinet back of the unit .
This T.V. receiver will not work properly in
foreign countries where the television
transmission system and power source
differ from the design speci cations.
Refer to the speci cation table.
REFERENCE NO.
Safety Notice.............................................. 2
Speci cations............................................. 3
Chassis Block Diagrams......................... 4-5
IC Block Diagrams ................................. 6-10
On-screen Service Menu System ........ 11-15
Service Adjustments ................................. 16
Mechanical Disassembly ..................... 17-19
Cabinet Parts List..................................... 20
Chassis Electrical Parts List ................ 21-29
Printed Wiring Board........................... 30-34
Schematic Diagram ............................. 35-36
(Argentina)

-2-
Safety Notice
Safety Precautions
The following precautions must be observed.
1:Comply with all caution and safety-related notes provided on the cabinet back, cabinet bottom, inside the
cabinet or on the chassis.
2:When replacing a chassis in the cabinet, always be certain that all the protective devices are installed
properly, such as, control knobs, adjustment covers or shields, barriers, etc..
DO NOT OPERATE THIS TELEVISION WITHOUT THE PROTECTIVE SHIELD IN POSITION AND
PROPERLY SECURED
3:Before replacing the cabinet cover, thoroughly inspect the inside of the cabinet to see that no stray parts or
tools have been left inside.
Before returning any televison to the customer, the service personnel must be sure that it is completely safe
to operate without danger of electrical shock.
Product Safety Notice
Product safety should be considered when a component replacement is made in any area of a receiver.
Components indicated by mark in the parts list and the schematic diagram designate components in which
safety can be of special signicance.
It is particularly recommended that only parts designated on the parts list in this manual be used for
component replacement designated by mark .
No deviations from resistance wattage or voltage ratings may be made for replacement items designated
by mark .

-3-
Specications
Power Source AC 110 - 240 Volts, 50/60 Hz
Receiving System PAL-N, PAL-M, NTSC3.58
Channel Coverage ANTENNA mode
VHF: CH02 - CH13
UHF: CH14 - CH69
CATV mode
VHF band: CH01-CH13
MID band: CH14-CH22
SUPER band: CH23-CH36
HYPER band: CH37-CH64
ULTRA band: CH65-CH94 and CH100-CH125
Low MID band: CH95-CH99
Aerial Input Impedance 75 Ω
LCD panel Screen Size (Measured Diagonally): 19 inches
Picture Resolution: WXGA 1366 (Horiz..) x 768 (Vert.) pixels
Brightness: 250 cd/m2
Audio Output (RMS) 3 W + 3 W
Speaker Size Mains: 32.5mm x 87.0mm x 2pcs
Input and Output terminals
AV1 Input Video Input: Composite video Input (RCA Jack) x1
Audio Input: L/R Stereo Input (RCA Jack) x 1 set
S-Video Input: DIN 4-pin Jack x1
AV2 Input Video Input: Component Y (combined with composite video input),
CB, CR Input (RCA Jack) x1 set
Audio: L/R Stereo Input (RCA Jack) x 1 set
HDMI Input HDMI Terminal 19 pin x1
PC Input Video Input: D-SUB 15 pin x1
Audio Input: Mini stereo jack x 1
Output Terminals Video Monitor Output: RCA jack x 1
Audio Monitor Output: L/R Stereo Output (RCA jack) x 1 set
Headphone Jack: Mini stereo jack x1
Dimensions
(Width x Height x Depth) 460.3 x 337.1 x 152.0 mm (Including Stand)
Net Weight
(Including Stand ) 4.8 KG
Environmental Considerations
Operating Temperature 0˚C ~ 40˚C (32˚F ~ 104˚F)
Operating Humidity 20 ~ 80%
Storage Temperature -10˚C ~ 50˚C (14˚F ~ 122˚F)
Storage Humidity 20 ~ 80 %
Accessories Owner’s Manual
Remote Control
Place of Production Argentina

-4-
Chassis Block Diagrams
MAIN SIGNAL PROCESSING CIRCUIT
IC7200
MST740KU
A101
R L V
VGA
HDMI
R L V
Video in/Y/C in
L/R in
R/G/B in
IC750 PS331
L/R OUT
SPI FLASH
24LA64AT
LVDS
I2C
TPA1517DWPR
AV2/DVD
Video in/Y/Pb/Pr in
L/R in
L/R in
audio out
video out
I2C
M9370
D3502H
SIF
VIF
H D M
I
V G A
AV1 AV2
S
SIF VIF
Monitor
FLASH
24L64AT
L V D S O U T
A U D
I
O
RC
KEY
RC
KEY
PC
PANEL
32PIN
Tuner
Tuner
S-Video
AV1
R L PR PB Y
Monitor out
L/R Speaker

-5-
POWER SUPPLY IC
Chassis Block Diagrams
1.3A
13V (1.2A) 100mA
100mA
5VD
(0.8A) 100mA
5VD
900mA
ON-PANEL(MAIN)
600mA
3.3V_2
5VD 600mA
PWR-ON
5VSTB (2.3A) 50mA
100mA
+5VSTB
IR/LED/EEPROM
3.3VSTB
LDO
LDO
AVDD_AU & AVDD_VIF &
3.3VD & AVDDA & VDDP
CMOS SW
LDO
1.26VA
5VP FOR PANEL
+13V
+12V
LDO
5VT FOR TUNER
CMOS SW
12V FOR AUDIO AMP
FOR MONITOR OUT
DC/DC
33V FOR TUNER

-6-
IC Block Diagrams (On the ASSY, PWB, MAIN)
FLK3
VGH_EVEN
OPT_P1
GCLK1
VGH_ODD
GCLK2
OPT_N1
GCLK3
SOE
HCONV1
SC_FS
AUVRADP
AUVREF
RXE4-
CVBS1
SV_Y0
CVBS0
SV_C0
CVBSOut1
VCOM0
B_TX0+
B_TX0-
R_TX2-
G_TX1-
G_TX1+
TXCLK-
R_TX2+
RXO1+RLV1N
PB+
TXD
TAGC
FLK1
SPI_CZ
SPI_CK
SPI_DO1
SPI_DI
AUOutL2
RXE4+
SAR0
SAR1
SIFP
SIFM
PWM0
RXO2-RLV2P
PWM2
VIFM
VIFP
LED_R
LED_Y
RXE1-RLV7P
FLK2
SIF-CTL
AUOutR2
HDCEC
RXO2+RLV2N
RXE1+RLV7N
TXCLK+
RXOC-
AUVRADN
LEDON1
SCAN_BLK2
RXE2-
WPWM1
HWRESET
SOG
BIN+
RIN+
GIN+
SCL_HD
SDA_HD
HPLUG
RXOC+
WAKEUP
RXE2+
SCAN_BLK1
RXO3-RLV4P
PWM1
RXEC-
I2C_SCL
I2C_SDA
DPM1
RXO3+RLV4N
IR_SYNC
SOY
PR+
Y+
RXEC+
RXO0-RLV0P
RXO4-RLV5P
RXE3-
AMP-MUTE
AUOutR1_amp
AUOutL1_amp
RXO0+RLV0N
ON-PANEL
ON-PBACK
COMP_AUL2
PC_AUR0
AV_AUL1
AV_AUR1
PC_AUL0
COMP_AUR2
RXO4+RLV5N
RXE3+
RXO1-RLV1P
RXD
HS_RGB
VS_RGB
HD-SW
SC_FB
GCLK4
PWM3
GCLK5
POL
GCLK6
WP_EE
GSP
RXE0+RLV6N
RXE0-RLV6P
AVDDA VDDP VDDC
AVDD_AU
AVDD_VIF
+5V_all
VDDP_PM
AVDD_MPLL
VGH_EVEN
RXOC+
RXOC-
RXO3+
RXO3-
RXO4-
RXO0+
RXO0-
RXO1+
RXO1-
RXO2+
RXO2-
PWM3
GCLK6
GCLK5
RXO4+
GCLK4
POL
RXE0-
RXE1+
RXE1-
RXE2+
RXE2-
RXEC+
RXEC-
RXE3+
RXE3-
RXE4+
RXE4-
RXE0+
GSP
GCLK1
GCLK2
GCLK3
SOE
ADJ_PWM
I2C_SDA
I2C_SCL
RXD
TXD
VGH_ODD
MST740KU
Please close
to chip.
CL=20pf of XTAL
WARNING !!!
PANEL
INTERFACE
C158
27pF
C158
27pF
R217 22RR217 22R
C169
0.1uF
C169
0.1uF
TP26TP26
TP14TP14
R183 100RR183 100R
R176 22RR176 22R
R239 NC/100RR239 NC/100R
TP15TP15
TP19TP19
R174
4.7K
R174
4.7K
TP17TP17
+
C164 10uF/16V
+
C164 10uF/16V
C159
27pF
C159
27pF
7 5 3 1 8 6 4 2
RP9
RP22X4
7 5 3 1 8 6 4 2
RP9
RP22X4
+
C175
10uF/16V
+
C175
10uF/16V
R241 22RR241 22R
R172 68RR172 68R
AVSS_ADC
3
AVDD_ADC 10
AVSS_ADC
25
AVDD_MPLL 26
SPI_SCK
91
SPI_SDI
89
SPI_SCZ
90
SPI_SDO
88
DDCA_DAT 126
INT 127
HWRESET 135
XTAL_XOUT 27
XTAL_XIN 28
DDCA_CLK 125
IRIN 128
AUWS/GPIO
83
GPIO/SPI_SIO3
86
GPIO
85 AUMCKO/GPIO 84
AVDD_VIF 39
AVSS_MPLL
29
VSYNC1
9
AVDD_VIF 30
AUSCK/GPIO
82 AUSD0/GPIO 81
AVDD_ADC 18
GPIO/SPI_SIO2
87
GPIOD3/TXD1
94
GPIOD2/RXD1
95
AVSS
52
MUTE/GPIOD5
92
GPIOD4
93
GPIOD1/RXD0
96
GPIOD0/TXD0
97
LVB4N 98
LVB4P 99
LVB3N 100
LVB3P 101
LVBCLKN 102
LVBCLKP 103
RLV8N/LVB2N 104
RLV8P/LVB2P 105
RLV6N/LVB0N 108
RLV6P/LVB0P 109
RLV5N/LVA4N 111
RLV5P/LVA4P 112
RLV4N/LVA3N 113
RLV4P/LVA3P 114
RLV3N/LVACLKN 115
RLV3P/LVACLKP 116
RLV2N/LVA2N 117
RLV2P/LVA2P 118
RLV1N/LVA1N 119
RLV1P/LVA1P 120
AVDDP_1 124
GND
68
AVDD_ADC 153
AVDD_VIF 31
RLV7P/LVB1P 107
RLV7N/LVB1N 106
RLV0P/LVA0P 122
RLV0N/LVA0N 121
TCON5 62
TCON6 63
TCON7 64
TCON8 65
TCON9 66
TCON10 70
TCON11 71
TCON12 72
GND
147
SAR0 131
SAR1 130
SAR2 129
WAKEUP 137
TCON0 57
TCON1 58
TCON2 59
TCON3 60
TCON4 61
TCON13 73
AVDDP_1 110
PWM2
76
PWM1
77
PWM0
78
GND
79
AVDDP_1 69
TCON14 145
TCON15 144
TCON16 143
TCON17 142
TCON18 141
TCON19 140
TCON20 139
TCON21 138
AVDDP_1 74
VDDC 67
AVDDP_1 80
VDDP_2 132
VDDC 148
AVSS_VIF
32
AVSS_VIF
37
AVDD_AU 41
GND
123
DDCD_SCL
133
RIN1P
8
RXA0P
152
LINE_IN_1R
45
BIN1P
4
HOTPLUG
156
RXACKP
150
LINE_IN_2L
46
SIFP
36
GIN1P
6
CVBS0/Y0
22
CVBS2/Y1
20
AUVRP
50
DDCD_SDA
134
BIN0P
12
CEC
136
LINE_IN_0R
43
DAC_OUT_L
53
HSYNC0
11
AUVAG
51
RIN0P
16
AUCOM
48
SOGIN0
15
SOGIN1
5
RXA2P
2
RXA1N
154
RXA2N
1
VCOM0
23
GIN0M
13
RXA0N
151
LINE_IN_1L
44
LINE_IN_2R
47
AUVRM
49
LINE_IN_0L
42
TAGC
40
RXACKN
149
GIN1M
7
SIFM
35 VIFM
34
CVBSOUT
24
CVBS1/C0
21
RXA1P
155
DAC_OUT_R
54
VSYNC0
17
VR27
38
VIFP
33
CVBS3/C1
19
GIN0P
14
LINE_OUT_L
55
LINE_OUT_R
56
AVDDP_1 146
PWM3
75
EPAD
157
U18U18
C165 0.1uFC165 0.1uF
R238 22RR238 22R
R167 200RR167 200R
TP23TP23
TP16TP16
TP21TP21
TP27TP27
X1
14.318MHZ
X1
14.318MHZ
R208 22RR208 22R
C162 47nFC162 47nF
C161 47nFC161 47nF
R179 0RR179 0R
7 5 3 1 8 6 4 2
RP3
RP22X4
7 5 3 1 8 6 4 2
RP3
RP22X4
C168
0.1uF
C168
0.1uF
7 5 3 1 8 6 4 2
RP4
RP22X4
7 5 3 1 8 6 4 2
RP4
RP22X4
TP18TP18
C171 0.1uFC171 0.1uF
L20
120R/FB0603
L20
120R/FB0603
L21
FB
L21
FB
TP13TP13
R173 68RR173 68R
R244 22RR244 22R
C174
1uF
C174
1uF
7 5 3 1 8 6 4 2
RP5
RP22X4
7 5 3 1 8 6 4 2
RP5
RP22X4
R177 22RR177 22R
TP22TP22
R166
1M
R166
1M
R171 68RR171 68R
TP25TP25
R228 10K/NCR228 10K/NC
R181 0RR181 0R
7531
8642
RP7
RP22X4
7531
8642
RP7
RP22X4
C115 47nFC115 47nF
R180 0RR180 0R
C170
100pF
C170
100pF
R237 22RR237 22R
7 5 3 1 8 6 4 2
RP1
RP22X4
7 5 3 1 8 6 4 2
RP1
RP22X4
R227 22RR227 22R
C172
0.1uF
C172
0.1uF
R182 0RR182 0R
7 5 3 1 8 6 4 2
RP2
RP22X4
7 5 3 1 8 6 4 2
RP2
RP22X4
R214 22RR214 22R
TP24TP24
TP20TP20
C173
4.7uF
C173
4.7uF
R245 22RR245 22R
IC7200 MST740KUMST740KU

-7-
IC Block Diagrams
This Data Sheet may be revised by subsequent versions ©2004 Eon Silicon Solution, Inc., www.eonssi.com
or modifications due to changes in technical specifications.
3
EN25F80
Rev. I, Issue Date: 2009/10
/
16
Figure.1 CONNECTION DIAGRAMS
ʳ
Figure 2. BLOCK DIAGRAM
8 - LEAD SOP / PDIP 8 - CONTACT VDFN
IC8000 �XXAAJ�1298--�XXAAJ�1298--
This Data Sheet may be revised by subsequent versions ©2004 Eon Silicon Solution, Inc., www.eonssi.com
or modifications due to changes in technical specifications.
3
EN25F80
Rev. I, Issue Date: 2009/10
/
16
Figure.1 CONNECTION DIAGRAMS
ʳ
Figure 2. BLOCK DIAGRAM
8 - LEAD SOP / PDIP 8 - CONTACT VDFN

-8-
IC Block Diagrams
IC750 �PS331T�FP64M
IC8001 �XXAVC951---P

-9-
IC Block Diagrams
IC7502 �LM1085R-3.3P
IC7504 �LM1117S-ADJP

-10-
IC Block Diagrams
IC001 �TPA1517DWPRP