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Model
LC-60LE636E (serv.man8)
Pages
10
Size
565.05 KB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD / Major IC Informations
File
lc-60le636e-sm8.pdf
Date

Sharp LC-60LE636E (serv.man8) Service Manual ▷ View online

LC-60LE635E/636E/638E (1st Edition)
6 – 5
No picture on the display (1)
The picture doesn't appear in all modes.
                                             
Is the LVDS signal output from IC3303 (DIGITAL_AV_DECODER_&_MAIN_CPU) respectively?
[VBO_HTPDN(C21),  VBO_LOCKN(D21), VBO_TXA+-(A22/B22), VBO_TXB+-(A23/B23),  VBO_TXC+-(A24/B24),  VBO_TXD+-(A25/B25)
  
YES
NO
Check IC3303 and its peripheral control circuits.
(IC2001, IC3501, IC3502, X3301, etc.)
Do above-mentioned LVDS signals output from connector 
(P2604)?
NO
Check the line between IC3303 and P2604.
  
YES
Similarly, is LCD controller's control signal normal?
NO
Please check each control signal of DET_POW (DET_PNL12V), 
PE (PNL_EN).
YES
LCD Controller Unit: 
Do LVDS signals input to connector (LW) of LCD Controller Unit?
NO
 Wire harness (LW) is checked.
YES
Check the panel module.
No picture on the display (2)
Does not the picture come out when VHF/UHF is received?
In the case of LE635E/636E series, refer to (A).
In the case of LE638E series, refer to (B).
(B)
(A)
Does video signal (IFTU_AIF+/CVBS) output from pin [9] 
of TUNER (TU1102)?
NO
Check the tuner and its peripheral circuits.
Replace as required.
YES
Does video signal (TUNER_CVBS) input to pin [AK24/
CPU_CVBS0P] of IC3303 (Digital AV decode & Main 
CPU)?
NO
Check the line between TU1102 and IC3303. (Q1106, etc...)
YES
Refer to “No picture on the display (1)”.
Does video signal (IFTU_AIF+/CVBS) output from pin [9] of 
TUNER (TU1104)?
NO
Check the tuner and its peripheral circuits.
Replace as required.
YES
Does video signal (TUNER_CVBS) input to pin [AK24/
CPU_CVBS0P] of IC3303 (Digital AV decode & Main CPU)?
NO
Check the line between TU1104 and IC3303. (Q1106, etc...)
YES
Refer to “No picture on the display (1)”.
LC-60LE635E/636E/638E (1st Edition)
6 – 6
<During external connection> No picture on the monitor
No picture appears on EXT1 connected monitor during the ATV reception.
                                            
Does CVBS signal output from pin [19] of EXT1 (SC505)?
YES
Check the setting of an external input device that connects with 
EXT1.
NO
Does CVBS signal output from pin [5] of IC510?
(CAPLESS VIDEO AMP with LPF)
YES
Check the line between SC505 and IC510.
NO
Does CVBS signal input to pin [3] of IC510?
YES
Check the peripheral circuits of IC510.
NO
Does CVBS signal output from pin [2] of IC507?
YES
Check the line between IC507 and IC510.
NO
Is CVBS_OUT_MUTE [pin (1)] of IC507 at “L”?
YES
Check the line between IC3303 and IC507.
Check the peripheral circuits of IC3303.
NO
Does CVBS signal input to pin [6] of IC507?
YES
Check the peripheral circuits of IC507.
NO
In the case of LE635E/636E series, refer to (A)?
In the case of LE638E series, refer to (B)?
(A)
(B)
Check the line between IC507 and TUNER (TU1102). 
(Q1106 etc...)
Check the line between IC507 and TUNER (TU1104).
(Q1106 etc...)
LC-60LE635E/636E/638E (1st Edition)
6 – 7
[2] LED flashing specification at the time of the error
Display method
• Refer to Table 1.
• LED that can be used are only one of the central icon (Emblem Unit). 
This expresses the error situation by combining blinking at low speed and blinking at high speed.
• For this model, the blinking pattern displayed first is only a low-speed blinking.
This expresses a rough content of the error.
• For this model, details are displayed by a high-speed blinking by pushing remote control MENU key.
This expresses details of the error.
Details are distinguished by the blinking frequency.
• It doesn’t return to the outline display again (blink at low speed) by pushing the MENU key (The toggle is not done).
Please confirm “MONITOR ERR CAUSE” of the adjustment Process mode (1/20 page), when the error doesn't reproduce by having returned from
the error. 
• The process of the upgrade is expressed by the brightness of point LED that smoothness changes. 
• The upgrade completion is expressed by the LED brightness that changes in a staircase pattern. 
LED flashing method
<Examination for a rough content of the error>
<Examination for details of the error> 
<Upgrade executing> 
<Upgrade completion> 
Central icons
By pushing remote control MENU key.
400ms
400ms
1600ms
OFF
ON
Central icons
1600ms
300ms
100ms
400ms
400ms
1600ms
OFF
ON
Central icons
500ms
500ms
OFF
ON
Central icons
1000ms
1000ms
1000ms
1000ms
OFF
ON
LC-60LE635E/636E/638E (1st Edition)
6 – 8
Table 1. Concrete flashing pattern
*2: It depends on the system. The power supply error suitable for the product is defined.
*3: For details, refer to ERROR STANDBY CAUSE on the adjustment process screen.
*4: If the boot section is abnormal, there is no flashing (flashing disabled).
MONITOR ERR STBY table
Item
Expression for a rough content
Expression for Details
Cause
low-speed
blinking
high-speed 
blinking
low-speed
blinking
high-speed 
blinking
Lamp system failure  Flashes once 
Flashes once 
Flashes once 
Lamp error
Power PWB failure
Flashes twice 
Flashes twice 
Flashes once 
Power Error 1 AC_DET error (*2) 
(Power failure, etc.)
Flashes twice 
Power Error 2 UR+13.5V error (*2) 
Flashes 3 times 
Power Error 3 D3.3V error (*2) 
Flashes 5 times 
Panel power supply error
Main PWB failure 
Flashes 3 times 
Flashes 3 times 
Flashes once 
Initial communication error
(Communication Flashes 
twice 
Start-up confirmation communication error
failure, etc.) 
Flashes 3 times 
Regular communication error
Flashes 5 times 
Other communication error
Others 
Flashes 4 times 
Flashes 4 times 
Flashes once 
Temperature error
Flashes twice 
Sync error
Flashes 3 times 
Notification from the main microprocessor 
(*3)
Upgrade executing 
smoothness 
changes. 
Version upgrading
Upgrade completion
a staircase 
pattern. 
Version upgrade succeeded
Upgrade failed 
Flashing
(Continuous)
Version upgrade failed
ROM data failure 
Flashing
(Continuous)
Start-up after failing version upgrade (*4)
Outline: Communication/Power failure detected by the monitor microprocessor (IC2001) is stored on EEPROM, states can be confirmed in the 
adjustment process mode.
Location: Page (1/20) of the adjustment process mode: MONITOR ERR CAUSE “0” if there is no error. It is cleared to 0 on the page (2/20) of the 
adjustment process mode.
Display Error 
description
02
Start-up communication error 2 
Initial communication from the main CPU is not received.
03
Start-up communication error 3 
Only the initial communication is received.
04
Start-up communication error 4
Until panel information request reception
05
Start-up communication error 5
Until initialization completion reception
06
Start-up communication error 6
Until version notification transmission
07
Start-up communication error 7
Until start-up information notification transmission
08
Start-up communication error 8
Until start-up information response reception
09
Start-up communication error 9
Until time-out setting reception
0A
Communication error A 
REQ time-out
0B
Communication error B 
Restart time-out during the beginning of time acquisition start-up
0C
Communication error C 
Ending sequence time-out
0D
Communication error D 
Preset start-up time-out during completion
0E
Communication error E 
Download start-up time-out
0F
Communication error F 
Time acquisition time-out
11
 Communication error H
Regular communication time-out
16
Panel-related error 
Lamp failure
1A
Other error 2 
Monitor temperature failure
1D
Power supply error 1 
PS_ON (AC_DET) failure
1E
Power supply error 2 
D_POW (DET_13V) failure
1F
Power supply error 3 
D_POW (DET_D3V3) failure
21
Power supply error 5 
Panel power failure
23
Other error 3 
Error standby request from the main CPU
Page of 10
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