Sharp Lc 32le340m Maintenance Manual

							LC-32LE240M/340M(1stEdition)
4 – 8
[3] PUBLIC MODE SETTING PROCEDURE
1. How to start Public Mode
• There are the following two ways to get the public mode setup screen displayed.
1) Press the “INPUT” and “VOL (+)” keys on the set at once and turn on the power.
2) Get the password input screen displayed.
3) The 3-digit password is now verified.
The password [0] [2] [7] provides for the public mode screen. (This screen comes on with whatever adjustment process settings.)
With any other passwords, the screen changes to the normal mode.
In the adjustment process mode, turn on “PUBLIC MODE”. Also press the “CH ( )” and “VOL (+)” keys on the set at once and turn on the power.
2. How to exit Public Mode
There are the following ways to quit the public mode setup screen.
• Turn off “PUBLIC MODE” in the adjustment process mode. ( ) ← This way alone is not for quitting the setup screen, but for quitting the mode by
itself.
• Turn off the power with the “POWER” key. ( )
• Select “EXECUTE”.( )
 ••• “PUBLIC MODE” stays on in the adjustment process mode.
 ••• The settings will be back to the factory ones.
3. Public Mode Setting Values
• With the factory settings made, the public mode settings get initialized. (The adjustment process remains intact.) Procedure
• The input starts with the leftmost digit.
• Use the numeric keys [1] thru [9] and [10/0] keys on the remote controller.
The other keys are not acceptable.
• With a numeric-key input, “–” will change to “ “. The input position will move one digit to the right.
• With all the 3 digits entered, the password will be verified. 
						

							LC-32LE240M/340M(1stEdition)
4 – 9 4. Public Mode Menu
The guidance is not displayed onscreen.
Setup procedure
• To move the cursor up and down, use the “cursor UP/DOWN” key (remote controller) and “CH ( )/( )” key (remote controller and set).
• To change the settings, use the “cursor RIGHT/LEFT” key (remote controller) and “VOL (+)/(–)” key (remote controller and set).
• To save new settings, keep the cursor at “Execute” and use the “cursor RIGHT/LEFT” key (remote controller) and “VOL (+)/(–)” key (remote con-
troller and set).
5. On Setting Items
1. POWER ON FIXED
2. MAXIMUM VOLUMESelection Variable/Fixed
Default Variable
Explanation When set to “Fixed”, the power cannot be turned off with the power key on the remote control or main unit, and the image 
reception state is kept (it does not enter the standby state).
The power can be turned off by shutting off power supply from AC.
Limit in setting • Power key on the main unit/remote control power supply key
• OFF timer/ON timer
Exception None
Remarks • Selection of “FIXED” assumes use of STB, etc.
• When set to “Variable”, if the main power switch is set to off, the power is turned off after a wait of 1 second.
(Push-push switch only)
• Display ON/OFF in the hotel menu is controlled by the adjustment process “HOTEL POWERFIX”.
• When the power button is operated, a caution is displayed (it times out in 5 seconds).
(For the caution, refer to the power on fixed message sheet.)
* The caution is not displayed when in the adjustment process, hotel menu, default setting, MCL operation and auto preset 
(Ch search operation).
The OSD display including the menu and this caution have priority over all others.
When “OSD display” (described below) is set to “Variable”, this caution is displayed as a special case.
Selection Adjustment from 1 to 60 (no loop)
Default 60
Explanation Sound volume can not be adjusted higher than the preset value.
Limit in setting • When the sound volume is set lower than 59, only figures are displayed and the sound volume bar is not displayed.
• The maximum sound volume for ON-timer (Wake up timer) is limited also to the preset value.
Exception • In the item “VOLUME” of adjustment process, the sound volume can be set freely irrespective of this setting.
Remarks • Setting is valid only for the speakers of the unit. (As for the headphone, the sound volume can be set up to 60 irrespective 
of the limit.)
• In line output (sound volume variable), the sound volume can be adjusted from -60 to 0 irrespective of pre-adjusted value.
• When the sound volume is set higher than the MAX setting by the adjusting process or headphone, the sound volume con-
trol operation is prohibited for turn-up and the sound volume should be turned down to MAX in this state.
PUBLIC MODE
POWER ON FIXED [ VARIABLE ]
MAXIMUM VOLUME [ 60 ]
VOLUME FIXED [ VARIABLE ]
VOLUME FIXED LEVEL [ 20 ]
RC BUTTON [ RESPOND ]
PANEL BUTTON [ RESPOND ]
MENU BUTTON [ RESPOND ]
ON SCREEN DISPLAY [ YES ]
BLUE SCREEN [ NO ]
INPUT MODE START [ NORMAL ]
INPUT MODE FIXED [ VARIABLE ]
232C POWON [ DISABLE ]
START UP SCREEN [ OFF ]
PICTURE IMPORT [ OFF ]
RC PATH THROGH [ OFF ]
RESET
EXECUTE
 
						

							LC-32LE240M/340M(1stEdition)
4 – 10
3. VOLUME FIXED
4. VOLUME FIXED LEVEL
5. R/C BUTTON
6. PANEL BUTTON
7. MENU BUTTONSelection Selection between “Variable” and “Fixed” (loop provided)
Default Variable
Explanation Sound volume is fixed and made invariable.
Limit in setting • The sound volume for the ON-timer (Wake up timer) is fixed also without display of menu. Besides, the setting is made 
impossible. (Basically, the menu is not displayed.)
• The following keys become invalid:
1) Sound volume Up/Down (VOL +/-) [for both remote control and the unit]
2) Mute (MUTE)
Exception • In the item “VOLUME” of adjustment process, the sound volume can be set freely irrespective of this setting.
Remarks • In “Variable” setting, the sound volume had been conventionally set at 1 but this operation has been abolished (and follows 
the last memory).
• The sound volume for the ON-time is not set at 1 either and the sound volume set value of the ON-timer before the hotel 
mode is executed.
• Setting is valid only for the speakers of the unit. (As for the headphone, the sound volume can be set up to 60 irrespective 
of the limit.)
• In line output (sound volume variable), the sound volume can be adjusted from -60 to 0 irrespective of pre-adjusted value.
• As for sound volume fixing and sound volume MAX level, the sound volume fixing has priority.
• Once the sound volume has been changed by adjustment process or headphone, it should be set back to the sound volume 
preset by sound volume fixing level when the adjustment process ends or when the headphone is removed.
Selection Adjustment from 1 to 60 (no loop)
Default 20
Explanation The sound volume to be fixed by “Volume fixed” is determined.
Limit in setting None
Exception None
Remarks Setting is valid only when “Volume fixed” is selected for “fixed”.
This must be confirmed actually by changing also the sound volume in accordance with setting.
Selection Selection between “Respond”, “Limited” and “No respond” (loop provide)
Default Respond
Explanation Acceptability of keys by remote control is limited or reception of keys can be prohibited.
Limit in setting
1) In “limited” setting, only power ON/OFF, sound volume   , tuning   and BACKLIGHT (brightness sensor) are 
accepted.
2) In “No respond” setting, all the keys (including the power key) are not accepted.
Exception • Adjustment process, factory setting, inspection process and hotel only keys are valid irrespective of setting.
• All the keys can be used in adjustment process, inspection mode and hotel menu irrespective of setting.
Remarks
Selection Selection between “Respond” and “No respond” (loop provide)
Default Respond
Explanation All the operations by keys (except the power key) of the unit can be invalidated.
Limit in setting
Exception • Inspection mode and hotel menu mode can be started irrespective of setting.
• All the keys can be used in adjustment process, inspection mode and hotel menu irrespective of setting.
Remarks
Selection Selection between “Respond” and “No respond” (loop provide)
Default Respond
Explanation In “No respond” setting, the menu operation by the menu key of the remote control and the menu key of the unit is invalidated.
Limit in setting • ON-timer (Wakeup Timer) is turned OFF.
• The following keys become invalid.
Wake-up timer and clock setting keys and all of the direct change keys to menu display
Exception • Inspection mode and hotel menu mode can be started irrespective of setting.
• All the keys can be used in adjustment process, inspection mode and hotel menu irrespective of setting.
Remarks 
						

							LC-32LE240M/340M(1stEdition)
4 – 11
8. ON SCREEN DISPLAY
9. BLUE SCREEN
10.INPUT MODE START
11. INPUT MODE FIXED
12.232C POWONSelection Selection between “Yes”, “No” (loop provide)
Default Yes
Explanation The following OSD displays are made ineffective.
Displays of menu group, channel call, sound volume bar and direct key call
Limit in setting • Set time of the OFF-timer (SLEEP TIMER) is cleared.
• Setting of the no-signal power-OFF (AUTO POWER OFF) is cleared to “OFF”.
• Setting of the no-operation power-OFF is cleared to “OFF”.
• Keys falling under any of the following items become invalid.
1) Appearance of screen changes and the sound changes.
2) Personal functions which are hard to restore.
Ex.) Screen display, menu, OFF-timer, ON-timer, AV MODE, screen size switching, clock setting, treble emphasis, 
AUDIO ONLY, sound changeover, LANGUAGE, CLOSED CAPTION
Others • Simple input switching is generated. Those which are restored soon after leaving as they are and may be requested for 
change by customer are not prohibited.
Ex.) Brightness sensor (BACKLIGHT) and PIC. FLIP
Exception • Such a caution which is displayed independently is displayed as it is.
Non-responding signal caution, TELE TEXT caution and power-ON fixing caution
Selection Selection between “Yes”, “No” 
Default No
Explanation When no signal inputs, selecting the background color.
 Selected to “Yes”---Blue screen
 Selected to “No”---No Blue screen
Selection Selection between “Normal”, “TV (CH~)” “INPUT1~8” (loop provide)
Default Normal
Explanation In power-ON, the input source to be started or channel can be set.
(In standard mode, the operation follows the last memory.)
About options • All the input sources in the model are made selectable.
• When the input/output switchable input source is selected and the input source is set to output, the setting of input/output 
switching is changed to input at the execution of hotel menu. In addition, the input/output switching by menu is prohibited.
• In TV mode, the display of all channels is stopped and it is treated as an input source. At this time, the channel to be set fol-
lows the last memory and the content of the last memory is included in the notation by options. Ex.) TV (CH2), TV (CH4) 
etc.
• The order of appearance of options in the hotel menu should agree with the order of toggles by input switching key.
Limit in setting • The display of channel setting menu and the channel setting operation are prohibited (except for MCL).
Exception None
Remarks • In setting at “Normal”, the setting of “Input mode fixed” is changed to “Variable” and selection should be prohibited.
Selection Selection between “Variable” and “Fixed” (loop provide)
Default – (Variable)
Explanation The input mode is fixed at the input source or the channel set at the “Input mode start” in 9 and other input sources and chan-
nels can be made non-selectable.
Limit in setting • With the execution of hotel mode, the input source is forced to change to that set by “Input mode start” and the channel 
switching and input switching are prohibited thereafter.
• The following keys are invalidated.
CH  , direct tuning button, FLASHBACK, input
*However, the keys (input switching and CH  , keys) of the unit for menu operation remain valid.
Exception None
Remarks • In the following case, setting is cancelled and mode is changed to “Variable”.
When the setting of “Input mode start” is set to “Standard (Normal)”
Selection “Enable” and “Disable”
Default Disable
Explanation When in the standby state, power ON by the RS-232C command is enabled or disabled.
Limit in setting None
Exception None
Remarks
RS-232C power ON command “POWR1_ _ _  ” 
						

							LC-32LE240M/340M(1stEdition)
4 – 12
13.RC PATH THROUGH
Selection “Off”, “On: TV RCE”, “On: TV RCD”
Default Off
Explanation Remote control signal output from the pin 9 of the RS-232C terminal and signal reception is enabled or disabled.
When set to “ON: TV RCE”, TV also receives signals. With “ON: TV RCD”, the remote control signal is output from the pin 9, 
but TV does not respond to the remote control.
Limit in setting When set to “ON: TV RCD”, TV does not accept the remote control.
Exception None
Remarks 
						

							LC-32LE240M/340M(1stEdition)
5 – 1
LC32LE240M4FSWJDF
.BOVBM
CHAPTER 5. TROUBLESHOOTING TABLE
[1] TROUBLESHOOTING TABLE
No power (front LED failure to light up) or no startup (front LED failure to turn from red to green)
Are the wire harnesses and other cables properly connected in 
the set?NO Reconnect the wire harnesses and other cables properly in the 
set.
YES
Is there the AC_CTRL and PNL_POWER signal input at pins 
(126) and (127) of IC3301?NO Check the AC_CTRL signal line PNL_POWER signal line.
YES
Are the DC/DC converter outputs and the output voltages along 
the control lines as specified?NO Check the DC/DC converters and the control lines. Replace 
defective parts as required.
1) M+5.6V (IC9603)
2) D+1.26V (IC9605)
3) D+5V (IC9610)
4) T+5V (IC9612)
5) D+3.3V (IC9608)
6) D+1.8V (IC9609)
7) D+2.5V (IC9611) 
						

							LC-32LE240M/340M(1stEdition)
5 – 2
 
 
With [RF] signal input                                                                 No video onscreen (1)
No video in the UHF/VHF reception
Is there IF output from the tuner pin(10) of TU1101 as specified? NO Check TU1101 and its peripheral circuits.
YES
Is there VIF input at pin 74 & 75 of IC3301? NO Check the circuit between TU1101 & IC3301.
YES
Are there the signal outputs (pin 100-107, 109,110) of IC3301? NO Check IC3301 and its peripheral circuit.
YES
Check LVDS cable, LCD controller (incl. panel) and their periph-
eral circuits.
With  signal input                                                           No video onscreen (2)
                                            
No external input video onscreen 
                                            
Is INPUT 2 selected on the input select menu screen? NO Select INPUT 2 on the input select menu screen to pick up the 
right input signal.
YES
Is there the video signal input at pin (43) of IC3301? NO Check the line between pin (9) of J502 and pin (43) of IC3301.
YES
Are there the signal outputs (pin 100-107, 109,110) of IC3301? NO Check IC3301 and its peripheral circuits.
YES
Check LVDS cable, LCD controller (incl. panel) and their periph-
eral circuits. 
						

							LC-32LE240M/340M(1stEdition)
5 – 3
 
 With  signal input                                                  No video onscreen (3)
                                            
No external input video onscreen 
                                            
Is INPUT 3 selected on the input select menu screen? NO Select INPUT 3 on the input select menu screen to pick up the 
right input signal.
YES
Are there the Y, Pb and Pr signal inputs at pins (34), (36) and 
(38) of IC3301 respectively?NO Check the line between pins (19)/(17)/(15) of J502 and pins (34)/
(36)/(38) of IC3301.
YES
Are there the signal outputs (pin 100-107, 109,110) of IC3301? NO Check IC3301 and its peripheral circuits.
YES
Check LVDS cable, LCD controller (incl. panel) and their periph-
eral circuits.
With  signal input                                                          No video onscreen (4)
                                            
No external input video onscreen .
                                            
Is INPUT 1 selected on the menu screen? NO Select INPUT 1 on the input select menu screen to pick up the 
right signal input.
YES
Are there signal outputs from SC1501 to IC3301? NO Check peripheral circuits between SC1501 and IC3301.
YES
Are there the signal outputs (pin 100-107, 109,110) of IC3301? NO Check IC3301 and its peripheral circuits.
YES
Check LVDS cable, LCD controller (incl. panel) and their periph-
eral circuits. 
						

							LC-32LE240M/340M(1stEdition)
5 – 4
No audio heard (1)
                                            
No sound in the UHF/VHF reception.
                                            
Is the IF output from the tuner pin (10) of TU1101 as specified? NO Check TU1101 and its peripheral circuits.
YES
Is there the SIF signal input at pins (77), (78) of IC3301? NO Check IC3301 and its peripheral circuits.
YES
Is there audio signal intput at pin(6) of IC1701? NO Check connection between IC3301 and IC1701 and its 
peripheral circuits.
YES
Is the L-ch audio signal output at pin((28), (30) of IC1701 normal? NO Check IC1701 and its peripheral circuits.
Is the R-ch audio signal output at pin(12),  (14) of IC1701 normal?
YES
Are the audio signal L-ch and R-ch output at (3)/(4) and (1)/(2) of 
P1701 normal?NO Check circuit between IC1701 & P1701.
YES
Check speakers and their peripheral circuits. 
						

							LC-32LE240M/340M(1stEdition)
5 – 5
No audio heard (2)
                                            
No external audio heard

Is there the L-ch audio signal input from pin (7) of input terminal 
J502 to pin (47) of IC3301?
Is there the R-ch audio signal input from pin (5) of input terminal 
J502 to pin (48) of IC3301?

Is there the L-ch audio signal input from pin (13) of input terminal 
J502 to pin (49) of IC3301?
Is there the R-ch audio signal input from pin (11) of input terminal 
J502 to pin (50) of IC3301?
YES
Is there the I2S signal output at pin (80), (81) of IC3301? NO Check IC3301 and its peripheral circuits.
YES
Is there audio signal input at pin(6) of IC1701? NOCheck connection between IC3301 and IC1701 and its periph-
eral circuits.
YES
Is the L-ch audio signal output at pin(28), (30) of IC1701 normal? NO Check IC1701 and its peripheral circuits.
Is the R-ch audio signal output at pin(12), (14) of IC1701 normal?
YES
Are the audio signal L-ch and R-ch output at (3)/(4) and (1)/(2) of 
P1701 normal?NO Check circuit between IC1701 & P1701.
YES
Check speakers and their peripheral circuits.