Sanyo LCD-42XF4 Schematic
FILE NO.
ECO
MAIN/SUB
CHANGE
BACK
PIP
BASS
SOUND
VIDEO MODE
POWER
RECALL
DISPLAY
MUTE
AUDIO MODE
SLEEP
IMAGE
ZOOM
SURROUND
CH
CH
SERVICE MANUAL
LCD Television
Model No. LCD-42XF4
(Argentina)
Service Ref. No. LCD-42XF4-00
Contents
Safety Notice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Product Code:113011616
Original Version
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Chassis Block Diagrams . . . . . . . . . . . . . . . . . . . . . . 4-5
Chassis Series: UH3-L
IC Block Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8
On-screen Service Menu System . . . . . . . . . . . . . . 9-15
Service Adjustments. . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Mechanical Disassembly . . . . . . . . . . . . . . . . . . . . 17-22
Cabinet Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Give complete “SERVICE REF. NO.” for parts order
or servicing. It is shown on the rating label at the
cabinet back of the unit.
Chassis Electrical Parts List. . . . . . . . . . . . . . . . . . 25-36
Printed Wiring Board . . . . . . . . . . . . . . . . . . . . . . . 37-41
This T.V. receiver will not work properly in foreign countries where the television transmission system and power source differ from the
design specifications. Refer to the specification
N5CV
table.
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 television 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 significance. 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 .
-2-
Specifications
Power Source AC 100 - 240 Volts, 50/60 Hz
Receiving System PAL-N, PAL-M, NTSC
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
LCD panel
Screen Size (Measured Diagonally): 42 inches
Picture Resolution: 1920 (Horiz..) x 1080 (Vert.) pixels
Brightness: 500 cd/m2
Audio Output (RMS) 9 W + 9 W
Speaker Size
Input and Output Terminals
AV1 Input Video Input: Composite video Input (RCA Jack) x1
S-Video Input: DIN 4-pin Jack x1
Audio Input: L/R Stereo Input (RCA Jack) x 1 set
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 x2
PC Input Video Input: D-SUB 15 pin x1
Audio Input: Mini stereo jack x 1
Ω
6 cm x12 cm x 2 pcs
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 (W x H x D) Model LCD-42XF4: 1049 x 758 x 270 mm (including stand)
Weight (NET) Model LCD-42XF4: < 25.2kg (include stand)
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%
Specifications subject to change without notice.
-3-
Chassis Block Diagram
24LC64
MAIN SIGNAL PROCESSING CIRCUIT
-4-
Chassis Block Diagram
POWER SUPPLY IC (STRW6753)
-5-
IC Block Diagrams (On the ASSY, PWB, MAIN)
<TOP_VIEW>
MST6U89DL-LF
IC900
67
AUVRADN
68
AUVRADP
69
AUVREF
150
MADR[8]
151
MADR[9]
152
MADR[10]
153
MADR[11]
154
AD[0]
155
AD[1]
70
AVDD_AU
156
AD[2]
71
AUL0
157
AD[3]
72
AUR0
158
AD[4]
73
AUL1
159
AD[5]
74
AUR1
75
AUCOM
76
AUL2
77
AUR2
78
AUL3
79
AUR3
160
AD[6]
161
AD[7]
162
WRZ
163
RDZ
164
ALE
165
VDDP
80
AUMONO
166
GND
81
AUOUTL3
167
SCK
82
AUOUTR3
168
SDI
83
AUOUTL2
169
CSZ
84
AUOUTR2
85
AUOUTL1
86
AUOUTR1
87
AUOUTL0
88
AUOUTR0
89
GPIOF[0]
170
SDO
171
SAR0
172
SAR1
173
SAR2
174
SAR3
175
PWM0
90
GPIOF[1]
176
PWM1
91
GPIOF[2]
177
DDCR_DA
92
GPIOF[3]
178
DDCR_CK
93
GPIOF[4]
179
DDCA_DA
94
GPIOF[5]
95
GPIOF[6]
96
GPIOG[7]
97
GPIOF[8]
98
GPIOF[9]
99
VDDP
1
RXB1N
180
DDCA_CK
2
RXB1P
181
INT
3
GND
182
IRIN
4
RXB2N
183
VDDP
5
RXB2P
184
GND
6
HPLUGB
185
VDDC
7
DDCDB_D
186
GPIOB[6]
8
DDCDB_C
187
USB_VBUS
9
RXACKN
188
USB_DM
189
USB_DP
190
USB_CID
191
PWM2
192
PWM3
193
VDDC
194
VDDP
195
LVA4P
196
LVA4M
197
LVA3P
198
LVA3M
199
LVACKP
200
LVACKM
201
LVA2P
202
LVA2M
203
LVA1P
204
LVA1M
205
LVA0P
206
LVA0M
207
VDDP
208
GND
209
LVB4P
210
LVB4M
211
LVB3P
212
LVB3M
213
LVBCKP
214
LVBCKM
215
LVB2P
216
LVB2M
217
LVB1P
218
LVB1M
219
LVB0P
220
LVB0M
221
VDDP
222
GND
223
GPIOE[3]
224
GPIOE[2]
225
GPIOE[1]
226
GPIOE[0]
227
ICLK
228
IDE
229
IHSYNC
230
IVSYNC
231
DI[0]
10
RXACKP
232
DI[1]
11
GND
233
DI[2]
234
DI[3]
12
RXA0N
235
VDDP
13
RXAOP
236
DI[4]
14
AVDD_DV1
237
DI[5]
15
RXA1N
238
DI[6]
16
RXA1P
239
DI[7]
17
GND18RXA2N
19
RXA2P
100
GND
101
VDDC
102
DQS[1]
240
VDDC
103
MDATA[15]
241
GND
104
MDATA[14]
242
DI[8]
20
HPLUGA
105
GND
243
DI[9]
21
REXT
106
MDATA[13]
244
DI[10]
22
DDCDA_D
107
MDATA[12]
245
DI[11]
23
DDCDA_C
108
VDDM
246
DI[12]
24
HSYNC1
109
MDATA[11]
247
DI[13]
25
VSYNC1
248
HWRESET
26
VCLAMP
249
XOUT
27
REFP
28
REFM
29
BIN1P
110
MDATA[10]
111
MDATA[9]
112
MDATA[8]
250
XIN
113
GND
251
AVDD_MPLL
114
VDDM
252
RXBCKN
115
MDATA[7]
30
SOGIN1
253
RXBCKP
116
MDATA[6]
31
GIN1P
254
AVDD_DVI
117
MDATA[5]
32
RIN1P
255
RXB0N
118
MDATA[4]
33
VCOM2
256
RXB0P
119
VDDM
34
BIN0P
35
VCOM2
36
GIN0P37SOGIN0
38
RIN0P
39
AVDD_ADC
120
MDATA[3]
121
MDATA[2]
122
MDATA[1]
123
MDATA[0]
124
DQS[0]
125
LDQM
40
GND
126
UDQM
41
HSYNC0
127
MVREF
42
VSYNC0
128
MCLKE
43
VSYNC2
129
MCLKZ
44
BIN2P
45
SOGIN2
46
GIN2P
47
RIN2P
48
C1
49
Y1
130
MCLK
131
BADR[1]
132
BADR[0]
133
RASZ
134
GND
135
VDDM
50
C0
136
AVDD_MEMPL
51
Y0
137
CASZ
52
CVBS3
138
WEZ
53
CVBS2
139
MADR[0]
54
CVBS1
55
VCOM1
56
CVBS0
57
VCOM0
58
AVDD_ADC
59
CVBSOUT1
140
MADR[1]
141
MADR[2]
142
MADR[3]
143
MADR[4]
144
MADR[5]
145
MADR[6]
60
CVBSOUT0
146
MADR[7]
61
GND
147
VDDM
62
SIF0P
148
GND
63
AVDD_SIF
149
VDDC
64
SIF1P
65
SIFM
66
GND
257
BIDIRECT
DGND
IC900 MST6U89DL-LF
-6-
IC Block Diagrams (On the ASSY, PWB, MAIN)
IC800 HY5DU281622FTP
-7-
IC Block Diagrams (On the ASSY, PWB, MAIN)
IC403 YDA138A20
-8-
On-screen Service Menu System
VIDEO MODE
POWER
RECALL
DISPLAY
MUTE
AUDIO MODE
ECO
MAIN/SUB
CHANGE
BACK
PIP
VIDEO MODE
POWER
RECALL
DISPLAY
MUTE
AUDIO MODE
SLEEP
IMAGE
CH
CH
General
This set has an On-screen Service Menu System included in the CPU that allows remote operation for most of the
service adjustments.
On-screen Service Menu System
Quick operation is needed to enter Service Mode.
■ How to enter the Service Menu
1. Press and hold the MENU button on Side Controls.
2. Keep pressing the MENU button and press the MUTE button on the remote control, and the FACTORY MENU
will be displayed.
3. Select SERVICE by pressing or button and then press + or
Side Controls
MENU button
Open or close the On-Screen Menu.
-
button to enter SERVICE menu.
[ Service Mode Menu ]
SERVICE
Item Name
INDEX-007 575P SUB- COLOR
ADDR. 09AB
Address
DATA 00 00000000
Data Value
■ How to select the service item and adjust data:
To adjust data:
1) Select “DATA” line by pressing or button.
SERVICE
INDEX-007 575P SUB- COLOR
ADDR. 09AB
DATA 00 00000000
2) Press + or - button to adjust data.
■ To exit service mode
Press BACK button or MENU button to exit service mode.
Note: The all adjusted data in service mode will be memorized into EEPROM automatically.
-9-
On-screen Service Menu System
■ Service Adjustment Data Table
Item Name Initial data IC Description
575i SUB-CONT
575i SUB-BRIGHT
575i SUB-COLOR
575i SUB-TINT
575i SUB-SHARP
575p SUB-CONT
575p SUB-BRIGHT
575p SUB-COLOR
575p SUB-TINT
575p SUB-SHARP
480i SUB-CONT
480i SUB-BRIGHT
480i SUB-COLOR
480i SUB-TINT
480i SUB-SHARP
480p SUB-CONT
480p SUB-BRIGHT
480p SUB-COLOR
480p SUB-TINT
480p SUB-SHARP
1080i(50） SUB-CONT
1080i（50） SUB-BRIGHT
1080i（50） SUB-COLOR
1080i（50）SUB-TINT
1080i（50） SUB-SHARP
1080i(60） SUB-CONT
1080i（60） SUB-BRIGHT
1080i（60） SUB-COLOR
1080i（60）SUB-TINT
1080i （60） SUB-SHARP
720p50 SUB-CONT
720p50 SUB-BRIGHT
720p50 SUB-COLOR
720p50 SUB-TINT
720p50 SUB-SHARP
720p60 SUB-CONT
720p60 SUB-BRIGHT
720p60 SUB-COLOR
720p60 SUB-TINT
720p60 SUB-SHARP
1080P（50）SUB-CONT
1080P（50
1080P（50
1080P（50
）SUB-BRIGHT
） SUB-COLOR
）SUB-TINT
00H MST6U89
00H MST6U89 DVD Input
00H MST6U89
00H MST6U89
00H MST6U89
00H MST6U89
00H MST6U89 DVD Input
00H MST6U89
00H MST6U89
00H MST6U89
00H MST6U89
00H MST6U89 DVD Input
00H MST6U89
FDH MST6U89
00H MST6U89
00H MST6U89
00H MST6U89 DVD Input
00H MST6U89
FDH MST6U89
00H MST6U89
00H MST6U89
00H MST6U89 DVD Input
00H MST6U89
FDH MST6U89
00H MST6U89
00H MST6U89
00H MST6U89 DVD Input
00H MST6U89
00H MST6U89
00H MST6U89
00H MST6U89 DVD Input
00H MST6U89
00H MST6U89
FDH MST6U89
00H MST6U89
00H MST6U89 DVD Input
00H MST6U89
00H MST6U89
00H MST6U89
00H MST6U89
00H MST6U89 DVD Input
00H MST6U89
00H MST6U89
FDH MST6U89
Input Video Format： 575i
Input Video Format： 575p
Input Video Format： 480i
Input Video Format： 480p
Input Video Format： 1080（50）i
Input Video Format：1080（60）i
Input Video Format： 720p (50)
Input Video Format： 720p (60)
Input Video Format： 1080P（50）
(Difference）
(Difference）
(Difference）
(Difference）
(Difference）
(Difference）
(Difference）
(Difference）
(Difference）
-10-
On-screen Service Menu System
Item Name Initial data IC
1080P（50
1080P（60
1080P（60
1080P（60
1080P（60）
1080P（60
PC SUB-CONT
SUB-BRIGHT
PC
SUB-COLOR
PC
SUB-TINT
PC
SUB-SHARP
PC
DVI SUB-CONT
DVI SUB-BRIGHT
DVI SUB-COLOR
DVI SUB-TINT
DVI SUB-SHARP
AVPAL-N BASE-CONT
AVPAL-N BASE-BRIGHT
AVPAL-N BASE-COLOR
AVPAL-N BASE-TINT
AVPAL-N BASE-SHARP
AVN SUB-CONT
AVN SUB-BRIGHT
AVN SUB-COLOR
AVN SUB-TINT
AVN SUB-SHARP
AVPAL-M SUB-CONT
AVPAL-M SUB-BRIGHT
AVPAL-M SUB-COLOR
AVPAL-M SUB-TINT
AVPAL-M SUB-SHARP
S(50) SUB-CONT
S(50) SUB-BRIGHT
S(50) SUB-COLOR
S(50) SUB-TINT
S(50) SUB-SHARP
S(60) SUB-CONT
S(60) SUB-BRIGHT
S(60) SUB-COLOR
S(60) SUB-TINT
S(60) SUB-SHARP
RFPAL-N SUB-CONT
RFPAL-N SUB-BRIGHT
RFPAL-N SUB-COLOR
） SUB-SHARP
）SUB-CONT
） SUB-BRIGHT
） SUB-COLOR
SUB-TINT
） SUB-SHARP
00H MST6U89
00H MST6U89 DVD Input
00H MST6U89
00H MST6U89
00H MST6U89
00H MST6U89
00H MST6U89
00H MST6U89
00H MST6U89
00H MST6U89
00H MST6U89
00H MST6U89
00H MST6U89
00H MST6U89
00H MST6U89
00H MST6U89
0DH MST6U89
FBH MST6U89
00H MST6U89
00H MST6U89
00H MST6U89
00H MST6U89
00H MST6U89
00H MST6U89
00H MST6U89
00H MST6U89
00H MST6U89
00H MST6U89
00H MST6U89
00H MST6U89
00H MST6U89
00H MST6U89
00H MST6U89
00H MST6U89
F6H MST6U89
00H MST6U89
00H MST6U89
00H MST6U89
00H MST6U89
00H MST6U89
00H MST6U89
00H MST6U89
00H MST6U89
00H MST6U89
Description
Input Video Format： 1080P（60）
(Difference）
PC Input
(Difference）
HDMI Input
(Difference）
Input Alteration：VIDEO(PAL-N)
(BASE）
Input Alteration：VIDEO(NTSC)
(Difference）
Input Alteration：VIDEO(PAL-M)
(Difference）
Input Alteration：S VIDEO(PAL)
(Difference）
Input Alteration：S VIDEO(NTSC)
(Difference）
Input Alteration：RF(PAL-N)
-11-
On-screen Service Menu System
Item Name Initial data IC
RFPAL-N SUB-TINT
RFPAL-N SUB-SHARP
RFN SUB-CONT
RFN SUB-BRIGHT
RFN SUB-COLOR
RFN SUB-TINT
RFN SUB-SHARP
RFPAL-M SUB-CONT
RFPAL-M SUB-BRIGHT
RFPAL-M SUB-COLOR
RFPAL-M SUB-TINT
RFPAL-M SUB-SHARP
White-575i R
White-575i G
White-575i B
Black-575i R
Black-575i G
Black-575i B
White-575p R
White-575p G
White-575p B
Black-575p R
Black-575p G
Black-575p B
White-480i R
White-480i G
White-480i B
Black-480i R
Black-480i G
Black-480i B
White-480p R
White-480p G
White-480p B
Black-480p R
Black-480p G
Black-480p B
White-1080I (50)R
White-1080I (50)G
White-1080I (50)B
Black-1080I (50)R
Black-1080I (50)G
Black-1080I (50) B
White-1080I (60)R
White-1080I (60)G
00H MST6U89
00H MST6U89
06H MST6U89
00H MST6U89
00H MST6U89
F6H MST6U89
00H MST6U89
00H MST6U89
00H MST6U89
00H MST6U89
00H MST6U89
00H MST6U89
0AH MST6U89
0AH MST6U89
0AH MST6U89
00H MST6U89
00H MST6U89
00H MST6U89
0AH MST6U89
0AH MST6U89
0AH MST6U89
00H MST6U89
00H MST6U89
00H MST6U89
0AH MST6U89
0AH MST6U89
0AH MST6U89
00H MST6U89
00H MST6U89
00H MST6U89
0AH MST6U89
0AH MST6U89
0AH MST6U89
00H MST6U89
00H MST6U89
00H MST6U89
0AH MST6U89
0AH MST6U89
0AH MST6U89
00H MST6U89
00H MST6U89
00H MST6U89
0AH MST6U89
0AH MST6U89
Description
(Difference）
Input Alteration：RF(NTSC)
(Difference）
Input Alteration：RF(PAL-M)
(Difference）
DVD Input：575i
(Difference）
DVD Input：575p
(Difference）
DVD Input：480i
(Difference）
DVD Input：480p
(Difference）
DVD Input：1080I (50)
(Difference）
-12-
On-screen Service Menu System
Item Name Initial data IC
White-1080I (60)B
Black-1080I (60)R
Black-1080I (60)G
Black-1080I (60)B
White-720P50 R
White-720P50 G
White-720P50 B
Black-720P50 R
Black-720P50 G
Black-720P50 B
White-720P60 R
White-720P60 G
White-720P60 B
Black-720P60 R
Black-720P60 G
Black-720P60 B
White-1080P（50） R
White-1080P（50） G
White-1080P（50） B
Black-1080P（50） R
Black-1080P（50） G
Black-1080P（50） B
White-1080P（60） R
White-1080P（60） G
White-1080P（60） B
Black-1080P（60） R
Black-1080P（60） G
Black-1080P（60） B
White-PC R
White-PC G
White-PC B
Black-PC R
Black-PC G
Black-PC B
White-DVI R
White-DVI G
White-DVI B
Black-DVI R
Black-DVI G
Black-DVI B
White-AVPAL-M R
White-AVPAL-M G
White-AVPAL-M B
Black-AVPAL-M R
0AH MST6U89
00H MST6U89
00H MST6U89
00H MST6U89
0AH MST6U89
0AH MST6U89
0AH MST6U89
00H MST6U89
00H MST6U89
00H MST6U89
0AH MST6U89
0AH MST6U89
0AH MST6U89
00H MST6U89
00H MST6U89
00H MST6U89
0AH MST6U89
0AH MST6U89
0AH MST6U89
00H MST6U89
00H MST6U89
00H MST6U89
0AH MST6U89
0AH MST6U89
0AH MST6U89
00H MST6U89
00H MST6U89
00H MST6U89
00H MST6U89
00H MST6U89
00H MST6U89
00H MST6U89
00H MST6U89
00H MST6U89
00H MST6U89
00H MST6U89
00H MST6U89
00H MST6U89
00H MST6U89
00H MST6U89
00H MST6U89
00H MST6U89
00H MST6U89 VIDEO
00H MST6U89
Description
DVD Input：1080I (60)
(Difference）
DVD Input:720P (50)
(Difference）
DVD Input:720P (60)
(Difference）
DVD Input:1080P（50）
(Difference）
DVD Input:1080P（60）
(Difference）
PC Input
(Difference）
HDMI Input
(Difference）
入力→
PAL-M
(Difference）
-13-
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