Sharp LC-26SB14U Support Question
Sharp LC-26SB14U Support Question
Find answers below for this question about Sharp LC-26SB14U - 26" LCD TV.Need a Sharp LC-26SB14U manual? We have 1 online manual for this item!
Question posted by ts131601 on September 14th, 2012
Power Supply I Have Does Not Match Sch. Ic407 Missing On Mine. Any Update?
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Current Answers
Related Sharp LC-26SB14U Manual Pages
Service Manual - Page 4
...Level
Output Level
at DVD
at TV
Digital Output Level
S/N Ratio at DVD (Weighted)
Harmonic Distortion
Frequency Response :
at DVD
at Video CD
at SVCD
at CD
G-4 Power
Power Source
AC
DC
Power Consumption
at AC
at DC
...
Program
Game Timer
Wake Up Timer
Timer Back-up (at Power Off Mode)
more than
25.5 inch / 647.7mmV
Color TFT LCD
1366(H) x 768(V)
80/80 degree
80/80 degree n
Service Manual - Page 5
G-9 Remote Control
GENERAL SPECIFICATIONS
Unit
Glow in Dark Remocon
Remocon Format
Format
Custom Code
Power Source
Voltage(D.C)
UM size x pcs
Total Keys
Keys
POWER
FUNCTION
Source POWER
DISPLAY
LIGHT
SEARCH+
SEARCH-
PLAY
REC
STOP
PAUSE
SKIP+
SKIP- VIEW MODE
1
2
3
4
5
6
7
8
9
0
ENT INPUT FLASH BACK VOL+ VOLCH+ CHSURROUND MUTE FREEZE MENU LEFT ENTER RIGHT ...
Service Manual - Page 6
...
GENERAL SPECIFICATIONS
Auto Shut Off Auto Search Power On Memory Comb Filter
Game Position
Auto Setup(Language/CH Program)
Picture Setting(TV)
AV Mode(Picture Preference)
Brightness , Contrast...Channel Lock
Video Lock
Panel Lock
Menu Language
Closed Caption
CC Advanced
View Mode (Picture Size)
Picture Scroll
Film Mode
Aspect
Backlight
PFC(Power Factor circuit)
Freeze frame...
Service Manual - Page 8
...Container Stuffing (40' container)
w/Pallet
w/Wrapping
Cabinet Front
Rear
Jack Panel
PCB
Non-Halogen Demand
Eyelet Demand
Environmental standard requirement
Pb-free
Measures for...
---
W x D x H (mm)
w/o Handle, Stand Approx. Still/Pause
Stop
Main Power SW
Input Select
Rear
Main Power SW
Power/Stand-By
On Timer
Side
Video Input 1
Audio Input 1
S - Input 2
Video Output
...
Service Manual - Page 10
... and CP4302).
2. Remove the 5 screws (2). 4. Remove the Plate Jack in the direction of arrow (A). 7. Remove the Cover LCD in the
direction of arrow.
(2)
(1) (1)
(1) (1)
Cover LCD
LCD Panel
(B)
Fig. 1-7
Fig. 1-6
1-6: POWER PCB (Refer to Fig. 1-5)
1. Remove the 3 screws (3). 5. Remove the 5 screws (5). 8. Remove the 1 screw (1). 3. Remove the 5 screws (1). 2. DISASSEMBLY...
Service Manual - Page 12
... by resoldering. If the bending of the IC leads. (Refer to Fig. 2-6.)
Solder
Soldering Iron
IC
Supply soldering
from upper position
to Fig. 2-8.)
Thin-tip Soldering Iron
IC
Soldering Iron
Solder temporarily
Solder temporarily
Fig. 2-5
2. Supply the solder from the upper position of IC leads sliding to the lower position of leads...
Service Manual - Page 13
... are reset
such as the channel setting, and the POWER ON total hours. Releasing of factory TV data. Initialization of V-CHIP PASSWORD.
2 sec. DOWN (Minimum)
8
Power ON
VOL.
Display of MEMORY IC. DOWN (Minimum)... than a the standard time in the appropriate condition. (See below chart.)
Set Condition
Power ON
Set Key
VOL.
To enter to the "WHEN REPLACING EEPROM (MEMORY) IC". ...
Service Manual - Page 14
...POWER off automatically.
NOTE: The each item value might be checked on the remote control for more than 2 seconds. 4. Sub Micon check version Main Micon check version
EEPROM check version Parameter
CHECK SUM: 3ED6 LCD...than 2 seconds. 12. When DATA is not corresponding. 1. Turn on the POWER, and set to the TV mode. 2. The unit will take you set a factory initialization, the total ...
Service Manual - Page 18
(LCD SECTION)
POWER DOES NOT TURN ON
TROUBLESHOOTING GUIDE
Yes Is F401 broken? No
Is there voltage at pin 1 of IC401 19V? Check IC402 and peripheral circuit.
E-1 No
No Is there voltage at pin
No
10 of IC402 6V? Yes
Change DIGITAL PCB.
Check IC401 and peripheral circuit.
Change F401. Change R412. Yes
Yes Is R412 broken?
Service Manual - Page 20
...Yes
Connected CD2804.
Change V2301 (PANEL). Yes
Is there voltage at pins 13, Yes 14, 16, 17, 19, 20, 22, 23, 25 and 26 of CP2804?
Yes
Is there ...signal at pins No 1, 2, 3, 4 and 5 of CP406 24V?
Is there voltage at pins 1, No 2, 3, 4 and 5 of CP2804 5V?
Check IC401, T401, D437 and peripheral circuit.
Yes
No Is CD2804 connected?
E-3
Check IC407...
Service Manual - Page 22
...
1
4
3
D405 D407
C403 + C404 +
POWER SW IC401 MP3A5038 Q2g Vcc Q1d FB P.GND VW Q2d 20 10 18 13 8 1 22 2
D415 2
4
TRANSFORMER T402
1
9
+ C455
8
3
7
5
POWER SW IC402 MIP2F4
D Vcc FB Vdd 5 4 ...
REGULATOR IC404 KIA431A-AT
13
VccSW
41
32
SW
POWER SW
TRANSFORMER IC406
T401
PS2561AL1-1-V(W)
8
10
7
13
5
14
15
SOUND +B
2
1 IC407 DC/DC(5V) LA5779-E
FEED BACK
IC408
SW
...
Service Manual - Page 31
...
0
D3631 MA111
0
P5V_SW_1 Q3602 KRA102SRTK
3.3
3.3 D3630 MA111
R3638 10K
FROM FLASH HDMI_SW
FROM SCALER VIDEO/AUDIO HP_RST
FROM SCALER POWER VDD33
HDMI_POWER
HDMI1_CLK_P HDMI1_CLK_N
HDMI1_D0P HDMI1_D0N
HDMI1_D1P HDMI1_D1N
HDMI_P5V_1
W826
C3608 0.1 B
C3602 0.1 B
C3609
HDMI_POWER
3.1 3.1
0 3.1 3.1
0 3.1 3.1
0 3.1 3.1 3.4
0.1 B
12 11 10 9 8 7 6 5 4 3 2 1
3.4
5.0 HDMI1_SCL
VCC...
Service Manual - Page 33
...29
GND
28
LVDS0OUT0M E19 1.5 LVDS0OUT0P F19 1.5
NR2811 CRA108220JV
LCD_TXOUT0LCD_TXOUT0+
GND
27
RXIN0- 26
RXIN0+ 25
FROM REGULATOR2
B2806
HCB1608KF-221T20
D3.3V
B2807
HCB1608KF-221T20
6
C2865 10V ...- 20
CD2804
V2301_1 V260B1-L01_M
RXIN2+ 19
CURU1704
LCD PANEL
6
GND
18
RXCLK IN- 17
RXCLK IN+ 16
PLL POWER LVDS_CH0
D1.0V VDD_PANEL
B2808 HCB1608KF-221T20
B2809 HCB1608KF-...
Service Manual - Page 35
... 4V 100 V-S
5
B2811 HCB1608KF-221T20
4
3
D1.8V GND
2
C2884 1 B C2885 0.1 B
C2883 10V 22 V-S
C2887 0.1 B C2890 1B
C2891 10V 22 V-S
C2901 0.1 B
C2896 1 B C2900 0.1 B
C2894 0.1 B C2898 1 B
C
D
E
F
SCALER POWER SCHEMATIC DIAGRAM
(DIGITAL PCB)
SCALER IC
IC2801
R8J66954BG
3.4
3.4 3.4 3.4 3.4
E5 E6 E11 U5 U8
VCCQ33 VCCQ33 VCCQ33 VCCQ33 VCCQ33
Io_Power...
Service Manual - Page 38
...
VGA-R S1_DET SPDIF AV2_CVBS
FROM/TO TUNER TU_CVBS I2C_CLK I2C_DATA
TO HDMI HP_RST
FROM SCALER POWER AD_A3.3V
FROM/TO AV SWITCH2 SW_Y_IN SW_C_IN MCLK SDOUT LRCK BCLK
C
D
E
F...
3.3 NC
R2847 10K
C2959 0.1 B
V8 3.3 SCIRXD V7 3.3 SCISCK(GPIO) W73.3
C2965 0.1 B
ASW0 ASW1 ASW2 VDIM
LCD-H
MCU_SCIRXD MCU_SCITXD
IIC_OFF
NC
4321
0 A0 0 A1 0 A2 0 Vss
Vcc WP SCL SDA
5678
3.4
0 R2856
C2968
3.4...
Service Manual - Page 40
...3 SYS_POWER_H
4 AT+3.3V
5
GND
7
6 P.CON+5V
7
AT+5V
8
AT+5V
9
GND
10
GND
11 LCD+B
12 LCD+B
13 LCD_H
14 P.CON+9V
15
GND
16
GND
17 STBY_H
18 SW+12V
NC
6
19 REMOCON_IN
20 LIGHT_CTL
21
KEY_A...AT+5V 1V_CTL GND
0 0
0
4
R3010 3.3V_POWER_H
1K
SW
Q3003
0
KRC103SRTK
L3005 22uH TSL0808
TO SCALER POWER
D3.3V D1.8V D1.0V GND
TO AV SWITCH2
P.CON+9V
D5.0V D3.3V
3
D1.8V
D3...
Service Manual - Page 41
...DESCRIBED IN PARTS LIST ONLY
CAUTION: DIGITAL TRANSISTOR
F
G
2
PCB240 CEG353
1
H
H-26 NOTE:THE RESISTOR MARKED F IS FUSE RESISTOR. ATTENTION:POUR UNE PROTECTION CONTINUE LES RISQUES...1K
C419 2.2 B C495 2.2 B
R472 2.2K
VCC SW
Q403
6.6
KRC102SRTK0
PROTECT Q405
0
KTC3875S_Y_RTK
0
POWER SW IC406
OVP PROTECT 220 1/4W IC405
MTZJ30B
0
PS2561AL1-1-V(W)
D0
R478 470 1/4W
AT+5V
TO SOUND...
Service Manual - Page 42
...B
C
D
E
F
POWER2 SCHEMATIC DIAGRAM
8
(POWER PCB)
G
H
8
7
FROM POWER
INV_SW+24V SW+12V[UNREG]
AT+5V
P_GND INV_GND
INV_GND
6
LCD+B REG BLOCK
R486 1K 1/4W R487
4.7K 1/4W...LIGHT_CTL
VDIM
2A 125V
W814
LIGHT_POWER_H BLON SW+12V
F404 SW+12V[UNREG]
13.5
DC/DC(5V) IC IC407
LCD+B
LCD+B
20N_2000FS
12.4
LA5779
5
2A 125V
12.8
EV+17V REG
Q422
KTB1151
R491_1 330
VIN VOUT G 2.5V...
Service Manual - Page 43
...CON+9V
GND
5
GND
4
TUNER+30V POWER_FAIL SYS_POWER_H
AT+3.3V
P.CON+5V AT+5V
P_GND
3
LCD+B LCD-H P.CON+9V
STBY-H SW+12V IR_REMO
VDIM
BLON
2
1
H-29
NOTE:THIS SCHEMATIC DIAGRAM IS ....
A
B
C
D
E
F
REGULATOR SCHEMATIC DIAGRAM
8
(POWER PCB)
G
H
8
7
FROM/TO POWER2 SW+12V VDIM BLON LCD-H LCD+B
P.CON+5V SYS_POWER_H
6
FROM/TO POWER
POWER_FAIL AT+34V AT+5V
SYS_POWER_H P_GND
5
4
AT+5V
...
Service Manual - Page 44
...
FROM/TO JACK2 ASW2 ASW1 SW_L SW_R AV3/AV4_Y AV3/AV4_PB AV3/AV4_PR
FROM REGULATOR P.CON+9V GND
G
5
4
3
2
PCB240 CEG353
1 H
H-32 A
B
C
D
E
F
AV SWITCH SCHEMATIC DIAGRAM
8
(POWER PCB)
7
G
H
8
7
6
6
5
4
3
2
1 A
H-31
AV3_PB AV3_Y
W883 W884
W885
P.CON+9V
AV3_PR SW_L
AV3/AV4_PR
R6510 1K
AV3/AV4_PB AV3/AV4_Y SW_R
R6511 1K
C6509_1 16V 47...
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