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50mm
1st Edition
LC-26P55E LC-26GA5E LC-32P55E LC-32GA5E LC-37P55E
SERVICE MANUAL
Issued: Feb. 2006
40mm
LCD COLOUR TELEVISION
31.5mm
PAL B/G, I / SECAM B/G, D/K, L/L' SYSTEM COLOUR TELEVISION
25mm
MODELS
20mm
LC-26P55EE/F/I/K/RU LC-32P55EE/F/I/K/RU LC-37P55EE/F/I/K/RU
In the interests of user safety (required by safety regulations in some countries) the set should be restored to its original condition and only parts identical to those specified should be used.
CONTENTS
ELECTRICAL SPECIFICATIONS .............................................................................. 3 IMPORTANT SERVICE SAFETY PRECAUTIONS...................................................... 4 OPERATION MANUAL ............................................................................................... 6 DIMENSIONS ......................................................................................................... 10 REMOVING OF MAJOR PARTS ..................................................................................... 11 SERVICE ADJUSTMENTS ..................................................................................... 18 SOFTWARE UPDATING .................................................................................... 24 TROUBLESHOOTING TABLE .................................................................................. 30 MAJOR ICs INFORMATION ..................................................................................... 42 SOURCE OF DOCUMENTATION ................................................................................ 66 TERMINAL LAYOUT ............................................................................................. 67 CHASSIS LAYOUT .................................................................................................. 68 OVERALL WIRING DIAGRAMS ................................................................................ 73 BLOCK DIAGRAM ...................................................................................................... 74 SCHEMATIC DIAGRAMS ......................................................................................... 76 PRINTED WIRING BOARDS ..................................................................................... 91 REPLACEMENT PARTS LIST .................................................................................. 107 PACKING OF THE SET ........................................................................................... 124
SHARP CORPORATION
1
This document has been published to be used for after sales service only.
LC-26P55E LC-32P55E LC-37P55E
LC-26P55E LC-26GA5E LC-32P55E LC-32GA5E LC-37P55E
ELECTRICAL SPECIFICATIONS
Specifications
Item
26 " LCD COLOUR TV, Model: LC-26P55E
32 "LCD COLOUR TV, Model: LC-32P55E
37 "LCD COLOUR TV, Model: LC-37P55E
· As a part of policy of continuous improvement, SHARP reserves the right to make design and specification changes for product improvement without prior notice. The performance specification figures indicated are nominal values of production units. There may be some deviations from these in individual units.
Cautions regarding use in high and low temperature environments
·When the unit is used in a low temperature space (e.g. room, office), the picture may leave trails or appear slightly delayed. This is not a malfunction, and the unit will recover when the temperature returns to normal. · Do not leave the unit in a hot or cold location. Also, do not leave the unit in a location exposed to direct sunlight or near a heater, as this may cause the cabinet to deform and the LCD panel to malfunction. Storage temperature: 20°C to +60°C.
4 3
LC-26P55E LC-26GA5E LC-32P55E LC-32GA5E LC-37P55E
Service work should be performed only by qualified service technicians who are thoroughly familiar with all safety checks and the servicing guidelines which follow:
IMPORTANT SERVICE SAFETY PRECAUTION
WARNING
1. For continued safety, no modification of any circuit should be attempted. 2. Disconnect AC power before servicing. CAUTION: FOR CONTINUED PROTECTION AGAINST A RISK OF FIRE REPLACE ONLY WITH SAME TYPE F701 (4A / 250 V)
BEFORE RETURNING THE RECEIVER (Fire & Shock Hazard)
Before returning the receiver to the user, perform the following safety checks: 1. Inspect all lead dress to make certain that leads are not pinched, and check that hardware is not lodged between the chassis and other metal parts in the receiver. 2. Inspect all protective devices such as non-metallic control knobs, insulation materials, cabinet backs, adjustment and compartment covers or shields, isolation resistor-capacitor networks, mechanical insulators, etc. 3. To be sure that no shock hazard exists, check for leakage current in the following manner. · Plug the AC cord directly into a 220~240 volt AC outlet. (Do not use an isolation transformer for this test). ·Using two clip leads, connect a 1.5k ohm, 10 watt resistor paralleled by a 0.15µF capacitor in series with all exposed metal cabinet parts and a known earth ground, such as electrical conduit or electrical ground connected to an earth ground. ·A true RMS reading multimeter should be used for this test, especially where the equipment uses a switch mode power supply which may result in very non-sinusoidal leakage current. ·Connect the resistor connection to all exposed metal parts having a return to the chassis (antenna, metal cabinet, screw heads, knobs and control shafts, escutcheon, etc.) and measure the AC voltage drop across the resistor. All checks must be repeated with the AC cord plug connection reversed. (If necessary, a nonpolarized adaptor plug must be used only for the purpose of completing these checks.) Any reading of 0.75V peak (this corresponds to 0.5 mA. peak AC.) or more is excessive and indicates a potential shock hazard which must be corrected before returning the monitor to the owner.
DVM AC SCALE
1.5k ohm 10W
0.15 µF TEST PROBE
TO EXPOSED METAL PARTS
CONNECT TO KNOWN EARTH GROUND
SAFETY NOTICE
Many electrical and mechanical parts in LCD television have special safety-related characteristics. These characteristics are often not evident from visual inspection, nor can protection afforded by them be necessarily increased by using replacement components rated for higher voltage, wattage, etc. Replacement parts which have these special safety characteristics are identified in this manual; electrical components having such features are identified by " ! ". For continued protection, replacement parts must be identical to those used in the original circuit. The use of a substitute replacement parts which do not have the same safety characteristics as the factory recommended replacement parts shown in this service manual, may create shock, fire or other hazards.
4
LC-26P55E LC-26GA5E LC-32P55E LC-32GA5E LC-37P55E
PRECAUTIONS FOR USING LEAD-FREE SOLDER 1 Employing lead-free solder
"ALL PWB" of this model employs lead-free solder. The LF symbol indicates lead-free solder, and is attached on the PWBs and service manuals. The alphabetical character following LF shows the type of lead-free solder. Example:
e:
LFa
Indicates lead-free solder of tin, silver and copper.
2 Using lead-free wire solder
When fixing the PWB soldered with the lead-free solder, apply lead-free wire solder. Repairing with conventional lead wire solder may cause damage or accident due to cracks. As the melting point of lead-free solder (Sn-Ag-Cu) is higher than the lead wire solder by 40°C, we recommend you to use a dedicated soldering bit, if you are not familiar with how to obtain lead-free wire solder or soldering bit, contact our service station or service branch in your area.
3 Soldering
As the melting point of lead-free solder (Sn-Ag-Cu) is about 220°C which is higher than the conventional lead solder by 40°C, and as it has poor solder wettability, you may be apt to keep the soldering bit in contact with the PWB for extended period of time. However, Since the land may be peeled off or the maximum heat-resistance temperature of parts may be exceeded, remove the bit from the PWB as soon as you confirm the steady soldering condition. Lead-free solder contains more tin, and the end of the soldering bit may be easily corroded. Make sure to turn on and off the power of the bit as required. If a different type of solder stays on the tip of the soldering bit, it is alloyed with lead-free solder. Clean the bit after every use of it. When the tip of the soldering bit is blackened during use, file it with steel wool or fine sandpaper. Be careful when replacing parts with polarity indication on the PWB silk. Lead-free wire solder for servicing.
5
Quick guide
Quick guide
Remote control unit
TV (Front view)
(Subpage)
LC-26P55E LC-26GA5E LC-32P55E LC-32GA5E LC-37P55E
(Teletext)
(Freeze/Hold) SLEEP Set the sleep timer in units of 30 min. up to max. 2hr. 30min. (Reveal hidden Teletext)
(Standby/On) Enter standby mode or turn on the power.
(Display information)
(Subtitle for Teletext) RETURN Return to the previous menu screen.
OK Execute a command within the menu screen. Display the pr ogramme list.
/ / / (Cursor) Select a desired item on the setting scr een.
MENU Display the MENU screen.
TV (Rear view)
END Exit the menu screen. Colour (Red/Green/Yellow/ Blue)
(
( (Mute) Switch the sound on and of f.
Operation Manual
OPERATION MANUAL
5 6
P( / ) TV: Select the channel. External: Switch to TV input mode. Teletext: Move to the next/previous page. (INPUT SOURCE) Select an input source. (TV, EXT1, EXT2, EXT3, EXT4, EXT5) (WIDE MODE) Select the wide mode. Set the area of magnification in Teletext mode. SURROUND Switch the surround effects on and off.
( / ) (Volume) ) Increase the volume. ) Decrease the volume.
09 Set the channel in TV mode. Set the page in Teletext mode.
(Flashback) Press to return to the previous image in normal viewing mode.
(Sound mode) Select the sound multiplex mode. (See below.)
NICAM TV broadcasts selection
Signal
Selectable items
Stereo
NICAM STEREO, MONO
Bilingual
NICAM CH A, NICAM CH B, NICAM CH AB, MONO
Monaural
NICAM MONO, MONO
A2 TV broadcasts selection
Signal
Selectable items
Stereo
STEREO, MONO
Bilingual
CH A, CH B, CH AB
Monaural
MONO
LC-26P55E LC-32P55E LC-37P55E
· When no signal is input, the sound mode will display "MONO".
NOTE
Using external equipment
Using external equipment
on the remote control unit or TV .
Setting the input source
LC-26P55E LC-32P55E LC-37P55E
To view external source images, select the input sour ce using
Connecting a decoder
Using AV Link function
· The cables marked with * ar e commercial items.
NOTE
Connecting a VCR
One Touch Play
Connecting a DVD player
EXT 1
You can use the EXT 3, 4 or 5 (HDMI) terminals when connecting to a DVD player and other audiovisual equipment.
AUDIO cable* S-video cable* or
You can use the EXT 1 or 2 terminals when connecting a VCR and other audiovisual equipment. If your VCR supports TV-VCR advanced AV Link systems, you can connect the VCR to the EXT 2 terminal of the TV using the fully-wired SCART cable.
Decoder
TV Standby
SCART cable*
SCART cable*
NOTE
WYSIWYR (What You See Is What You Record)
L-AUDIO-R AV OUTPUT
S-VIDEO
VIDEO
VCR EXT 3 DVD player
EXT 1 or 2
Decoder
Composite video cable*
Connecting a PC
PC
Preset Download
EXT 4
NOTE
· TV-VCR advanced AV Link systems may not be compatible with some external sources.
NOTE
Connecting a game console or camcorder
Component cable*
(CR)
· EXT 3: The S-VIDEO ter inal has priority over the VIDEO m terminals. 3 RCA to 15-pin D-sub adapter (Supplied)
NOTE
PR
COMPONENT
A game console, camcor der and some other audiovisual equipment ar e conveniently connected using the EXT 3 terminals.
AUDIO cable*
Y
S-video cable* ø 3.5 mm stereo minijack cable* EXT 4
or DVD player
(CB)
PB
6 7
PC NOTE
HDMI cable* EXT 5 DVD player When using an HDMI-DVI conversion adapter/cable, input the Audio signal her e.
EXT 4
L-AUDIO-R
S-VIDEO
VIDEO
AV OUTPUT
Composite video cable*
EXT 3
Game console Camcorder
· EXT 3: The S-VIDEO ter inal has priority over the VIDEO m terminals. · You can connect the game console to EXT 1 or 3 ter minals to enjoy clearer picture.
NOTE
· When connecting an HDMI-DVI conversion adapter/cable to the HDMI terminal, the image may not come in clearly.
NOTE
LC-26P55E LC-26GA5E LC-32P55E LC-32GA5E LC-37P55E
Quick guide
Appendix
Troubleshooting
Problem Possible Solution
LC-26P55E LC-26GA5E LC-32P55E LC-32GA5E LC-37P55E
Attaching the stand
Before performing work spread cushioning over the base area to lay the TV on. This will prevent it from being damaged.
1
2
Short screws (
4)
Long screws (
4)
3
4
NOTE
SLEEP
7 8
Setting the TV
Ferrite Core
Cautions regarding use in high and low temperature environments
IMPORTANT NOTE ON RESETTING THE PIN
Setting the TV on the wall
LC-26P55E LC-32P55E LC-37P55E
Installing the LCD Colour TV requires special skill that should only be performed by qualified service personnel. Customers should not attempt to do the work themselves. SHARP bears no responsibility for improper mounting or mounting that results in accident or injury.
LC-26P55E LC-26GA5E LC-32P55E LC-32GA5E LC-37P55E
Appendix
RS-232C port specifications
PC Control of the TV
When a program is set, the TV can be contr olled from the PC using the RS-232C terminal. The input signal (PC/video) can be selected, the volume can be adjusted and various other adjustments and settings can be made, enabling automatic programmed playing. Attach an RS-232C cable cr oss-type (commercially available) to a 9 pin D-sub/MINI-DIN (optional: AN-A1RS) for the connections. NOTE
· This operation system should be used by a person who is accustomed to using PCs.
Commands
CONTROL ITEM POWER SETTING COMMAND PARAMETER _ _ _ _ ? * ? _ _ _ _ _ ? _ _ _ ? _ _ _ ? _ _ _ _ _ _ _ ? * ? * ? * ? * ? * ? _ _ _ _ _ _ _ _ _ _ 0 ? _ _ _ ? _ _ _ ? _ _ _ _ _ _ _ ? _ _ ? * ? _ _ _ _ ? _ ? _ _ _ _ _ ? _ _ _ ? _ _ _ ? _ _ _ _ _ _ _ ? _ ? * ? * ? * ? * ? _ _ _ _ _ _ _ _ _ _ _ ? _ _ _ ? _ _ _ ? _ _ _ _ _ _ _ ? _ _ ? * ? _ _ _ _ ? _ ? _ _ _ _ _ ? _ _ _ ? _ _ _ ? _ _ _ _ _ _ _ ? _ ? _ ? _ ? _ ? _ ? _ _ _ _ _ _ _ _ _ _ _ ? _ _ _ ? _ _ _ ? _ _ _ _ _ _ _ ? _ _ ? _ ? CONTROL CONTENTS POWER OFF INPUT SWITCHING (TOGGLE) TV (CHANNEL FIXED) EXT1 5 (1 5) 1 to 5, ERR (TV) TV DIRECT CHANNEL (1 99) 1 to 99 CHANNEL UP CHANNEL DOWN EXT1 (Y/C) EXT1 (CVBS) EXT1 (RGB) 0 to 2 EXT2 (Y/C) EXT2 (CVBS) EXT2 (RGB) 0 to 2 EXT3 EXT4 (RGB) EXT4 (COMPONENT) 0 to 1 EXT5 (HDMI) AV MODE SELECTION STANDARD SOFT ECO USER DYNAMIC 1 to 5 VOLUME (0 60) 0 to 60 H-POSITION AV ( 10 AV ( 10 AV ( 20 0 to 180 PHASE (0 40) 0 to 40 WIDE MODE (Toggle) NORMAL (AV) ZOOM 14:9 (AV) PANORAMA (AV) FULL (AV) CINEMA 16:9 (AV) CINEMA 14:9 (AV) UNDERSCAN1 (AV HD) UNDERSCAN2 (AV HD) NORMAL (PC) FULL (PC) 1 to 10 MUTE (Toggle) MUTE ON MUTE OFF 1 to 2 SURROUND (Toggle) SURROUND ON SURROUND OFF 1 to 2 SOUND SELECT (ST/Bilingual/mono) OFF 30 m 1 h 00 m 1 h 30 m 2 h 00 m 2 h 30 m 0 to 150 TEXT OFF TEXT CHANGE 0 to 1 DIRECT PAGE JUMP (100 899) V-POSITION AV ( 20 CLOCK (0 180) 10)/PC (0 to 180) 20)/PC (0 to 100) 10)/PC (0 to 180) 20)/PC (0 to 100) P O W R 0 T G D _ T V D _ A V D * * A V D ? I I I CHANNEL
INPUT SELECTION AI
D C C H
D C C H ? C H U P _ C H D W _ INPUT SELECTION BI I I I I N P 1 N P 1 N P 1 N P 1 N P 2 N P 2 N P 2 N P 2 N P 3 N P 4 N P 4 N P 4 N P 5 0 1 2 ? 0 1 2 ? 0 0 1 ? 0
9 pin D-sub/MINI-DIN conversion cable (optional: AN-A1RS) RS-232C serial control cable (cross type, commercially available)
I I I I I I I I AV MODE SELECTION
Communication conditions
Set the RS-232C communications settings on the PC to match the TV's communications conditions. The TV's communications settings are as follows:
· Baud rate: 9,600 bps · Data length: 8 bits · Parity bit: None
· Stop bit: 1 bit · Flow control: None
A V M D 0 A V M D 1 A V M D 2 A V M D 3 A V M D 4 A V M D 5 A V M D ?
VOLUME POSITION
V O L M * V O L M ? H P O S V P O S C L C K P H S E * * * * H P O S ? V P O S ? C L C K ? P H S E ?
Communication procedure
Send the control commands fr om the PC via the RS-232C connector. The TV operates according to the received command and sends a response message to the PC. Do not send multiple commands at the same time. W ait until the PC receives the OK response befor e sending the next command.
8
Command format
Eight ASCII codes e CR
WIDE MODE
W I W I W I W I W I
D E 0 D E 1 D E 2 D E 3 D E 4 D E 5 D E 6 D E 7 D E 8 D E 9 D E 1 D E ?
C1 C2 C3 C4 P1 P2 P3 P4
Command 4-digits Parameter 4-digits Return code
W I W I W I W I W I W I W I MUTE
Command 4-digits: Command. The text of four characters. Parameter 4-digits: Parameter 0 9, g , blank, ?
Parameter
Input the parameter values, aligning left, and fill with blank(s) for the remainder. (Be sure that four values are input for the parameter.) When the input parameter is not within an adjustable range, "ERR" returns. (Refer to "Response code for mat".)
M U T E 0 M U T E 1 M U T E 2 M U T E ?
SURROUND
A C D V 0 A C D V 1 A C D V 2 A C D V ?
0 0 0 0 9
1
3 0
0 0
0
0
5
5
AUDIO CHANGE SLEEP TIMER
A C H A _ O F T M 0 O F T M 1 O F T M 2 O F T M 3 O F T M 4 O F T M 5 O F T M ?
When "?" is input for some commands, the pr esent setting value responds.
?
?
?
?
?
Response code format
Normal response
TEXT
T E X T 0 T E X T 1 T E X T ?
O
K
Return code (0DH)
D C P G * D C P G ?
Problem response (communication er ror or incorrect command)
NOTE
· If an underbar (_) appears in the parameter column, enter a space. · If an asterisk (*) appears, enter a value in the range indicated in brackets under CONTROL CONTENTS.
E
R
R
Return code (0DH)
9
LC-26P55E LC-26GA5E LC-32P55E LC-32GA5E LC-37P55E
DIMENSIONS
LC-26/32/37P55E
(243) / [396] / ((396))
( ) : LC-26P55E [ ] : LC-32P55E (( )) : LC-37P55E : LC-26/32/37 P55E
(463) / [612] / ((612))
120
(670) / [804] / ((926))
(116) [117]/((117))
(567.9) / [700.4] / ((822.6)) (567,9) / [700,4] / ((822,6))
(554) / [636] / ((705))
(320.6) / [395.1] / ((463.8)) (320,6) / [395,1] / ((463,8))
(498) / [575] / ((644))
[61] / ((61))
(56) /
(345) / [388.5] / ((422.9)) (345) / [388,5] / ((422,9))
(255) / [305] / ((305))
LC-26P55E
(100)
LC-32/37P55E
[200] / ((200))
(100)
[200] / ((200))
[115] / ((104))
(50)
10
REMOVING OF MAJOR PARTS
RemovingREMOVING OF MAJOR of Major Parts LC-26P55E
1. 2. 3. 4. 5. 6. 7.
LC-26P55E LC-32P55E LC-37P55E
LC-26P55E LC-26GA5E LC-32P55E LC-32GA5E LC-37P55E
PARTS (LC-26P55E)
Remove the 4 lock screws 1, Detach the Stand. Remove the 4 lock screws 2, 1 lock screw 3 and the 9 lock screws 4, Detach the Rear Cabinet. Remove the 3 lock screws 5 and detach the Bottom Cover. Remove the 6 lock screws 6 and detach the Stand Angle. Remove the 4 lock screws 7 and detach the Center Angle. Disconnect the KM connector. Remove the 2 lock screws 8 and detach the Top Cover Ass'y. Remove the 3 lock screws 9 and detach the KEY Unit.
4 3 2
1
Rear Cabinet
Stand
11 9
LC-26P55E LC-26GA5E LC-32P55E LC-32GA5E LC-37P55E
LC-26P55E LC-32P55E Removing LC-37P55E
of Major Parts LC-26P55E (continued)
8-1.Remove all the FFC/FPC wires from P201-SC2705,P701-SC1701,P702-SC1702,SC2702-P1101,SC2703P1102,SC2704-P1201 and P703-SC301. 8-2.Remove all the connecting cables from PWBs.
9. Remove the 4 lock screws 0 10.Remove the 2 lock screws q 11.Remove the 2 lock screws w 12.Remove the 4 lock screws e 13.Remove the 5 lock screws r 14.Remove the 2 lock screws t 15.Remove the 4 lock screws y 16.Remove the 4 lock screws u
Main Unit
and detach the Power Unit. and detach the Tuner Unit and Tuner Earth Plate. and detach the Main Unit. and detach the AV Unit. detach the Terminal Angle and the Chassis Tray. and detach the R/C, LED Unit. and detach the Sperker R. and detach the Sperker L.
12
Tuner Earth Plate 11
10
Tuner Unit Power Unit
13
14
AV Unit Chassis Tray Terminal Angle
14
15
R/C, LED Unit
Speaker R Speaker L
16
17
12 10
LC-26P55E LC-26GA5E LC-32P55E LC-32GA5E LC-37P55E
Removing of Major Parts LC-26P55E (continued)
17.Remove the 8 lock screws i and the 4 lock screws o, detach the LCD Angles. 18.Remove the LCD Panel Unit from Front Cabinet.
LC-26P55E LC-32P55E LC-37P55E
18
19
LCD Angle LCD Angle
19
18
Front Cabinet LCD Panel Unit
LCD Angle LCD Angle
18
19
19
18
13
LC-26P55E LC-26GA5E LC-32P55E LC-32GA5E LC-37P55E LC-26P55E
LC-32P55E LC-37P55E
Removing of Major Parts LC-32/37P55E
1. 2. 3. 4. 5. 6. 7.
Remove the 4 lock screws 1, Detach the Stand. Remove the 5 lock screws 2, 1 lock screw 3 and the 9 lock screws 4, Detach the Rear Cabinet. Remove the 3 lock screws 5 and detach the Bottom Cover. Remove the 4 lock screws 6 and detach the Stand Angle. Remove the 6 lock screws 7 and detach the Center Angle L and the Center Angle R. Disconnect the KM connector. Remove the 2 lock screws 8 and detach the Top Cover Ass'y. Remove the 3 lock screws 9 and detach the KEY Unit.
REMOVING OF MAJOR PARTS (LC-32/37P55E)
4
3 2
1
Rear Cabinet Stand
12
14
LC-26P55E LC-26GA5E LC-32P55E LC-32GA5E LC-37P55E
Removing of Major Parts LC-32/37P55E (Continued)
LC-26P55E LC-32P55E LC-37P55E
8-1.Remove all the FFC/FPC wires from P201-SC2705,P701-SC1701,P702-SC1702,SC2702-P1101,SC2703P1102,SC2704-P1201 and P703-SC301. 8-2.Remove all the connecting cables from PWBs.
(LC-32P55E)
(LC-37P55E)
15
13
LC-26P55E LC-26GA5E LC-32P55E LC-32GA5E LC-37P55E
LC-26P55E Removing LC-32P55E LC-37P55E
of Major Parts LC-32/37P55E (Continued)
and detach the Power Unit. and detach the Tuner Unit and Tuner Earth Plate. and detach the Main Unit. and detach the AV Unit. detach the Terminal Angle and the Chassis Tray. and detach the R/C,LED Unit. and detach the Sperker R. and detach the Sperker L.
9. Remove the 4 lock screws 0 10.Remove the 2 lock screws q 11.Remove the 2 lock screws w 12.Remove the 4 lock screws e 13.Remove the 5 lock screws r 14.Remove the 2 lock screws t 15.Remove the 4 lock screws y 16.Remove the 4 lock screws u
12
Main Unit
Tuner Earth Plate
10 11
Tuner Unit Power Unit
13 15
14
AV Unit
Chassis Tray
14
Terminal Angle
15
R/C,LED Unit
Speaker R
Speaker L
16
17
16 14
LC-26P55E LC-26GA5E LC-32P55E LC-32GA5E LC-37P55E
Removing of Major Parts LC-32/37P55E (Continued)
LC-26P55E LC-32P55E LC-37P55E
17.Remove the 9 lock screws i and the 5 lock screws o, Detach LCD Angle A, LCD Angle B and LCD Angle C. 18.Remove the LCD Panel from Front Cabinet.
15 17
LC-26P55E LC-26GA5E LC-32P55E LC-32GA5E LC-37P55E
SERVICE ADJUSTMENTS
The adjustment values are set to their optimum at the factory before shipping. If by any chance a value should become improper or a readjustment is required due to part replacement, make an adjustment according to the following procedure.
1 Entering and exiting the adjustment process mode
1- Unplug the AC power cord of TV set to force power off. 2- While holding down the "VOL ()" and "INPUT" keys on the set at once, plug in the AC power cord to turn on the set. The letter K appears on the screen: "K" color guide: 3- Next, hold down the "VOL (--)" and "P (--)" keys on the set at once. Multiple lines of orange characters appear ing onscreen indicate that the set is now in the adjustment process mode. If you fail to enter the adjustment process mode (the display is the same as normal startup), retry the procedure. 4- To exit the adjustment process mode after the adjustment is done, unplug the AC power cord to force off the power. (When the power is turned off with the remote controller, once unplug the AC power cord and plug it in again. In this case, wait 10 seconds or so before plugging.) Caution: Use due care in handling the information described here lest the users should know how to enter the adjustment process mode. If the settings tampered with in this mode, unrecoverable system damage may result.
2 Remote Controller Key Operation and Description of Display in Adjustment Process Mode
2.1 Key operation Remote controller key P ( / V) VOL (+/-) Cursor (UP / DOWN) Cursor (LEFT / RIGHT) INPUT SOURCE on remote controller OK Main unit key P ( / V) VOL (+/-) -------- -------- INPUT button Function Moving an item (line) by one (UP/DOWN) Changing a selected item setting (+1/-1) Turning a page (PREVIOUS / NEXT) Changing a selected line setting (+10/-10) Input source switching (toggle switching) (TV EXT1 EXT2 EXT3 EXT4 EXT5) (Not Operative) Executing a function
--------
Input mode is switched automatically when relevant adjustment is started so far as the necessary input signal available. 2.2 Description of display
Current page title Current page/ Total pages
Currently selected input Current color TV system Destination
1/11
[INFO]
TV
AUTO
FIX: AUTO
MAIN Version Dev Version Dev Loader Version PIC Version TEMP SENSOR NORMAL StandBy Cause ERROR StandBy Cause
LEW05 01.XXX (XXXX/XX/XX X) X _____ _____ XX.XX XXX XXXXX [1] 0 XXHXXM [2] 0 XXHXXM [3] 0 XXHXXM [4] 0 XXHXXM [5] 0 XXHXXM
Adjustment process menu header
Paramenters
18
LC-26P55E LC-26GA5E LC-32P55E LC-32GA5E LC-37P55E
3. Adjustment process mode menu
The character string in brackets [ ] will appear as a page title in the adjustment process menu header.
Page 1/11 Line
1 2 3 4 5 6 7
2/11 1 2 3 4 5 6 7 8 9 10
3/11 1 2 3 4 5 6 7 8 9
4/11 1 2
5/11 1
6/11 1
7/11 1 2 3 4 5 6 7 8
8/11 1 2 3 4 5 6 7 8 9 10
Item [INFO] Main Version Dev Version Dev Loader Version PIC Version TEMP SENSOR NORMAL STANDBY CAUSE ERROR STANDBY CAUSE
[INIT] FACTORY INIT PUBLIC MODE Center Acutime RESET Backlight Acutime RESET Picture Read Pos X Picture Read Pos Y Picture Read Signal Type Picture Read [PAL. SECAM. N358] RF-AGC ADJ PAL+TUNER ADJ PAL ADJ TUNER ADJ CONTRAST SD SECAM CB OFFSET SECAM CR OFFSET TUNER A DAC RF AGC [COMP 15K] COMP 15K ADJ COMP 15K CONTRAST [HDTV] HDTV CONTRAST [TUNER] TUNER TEST
[M GAMMA INFO] M GAMMA IN 1 M GAMMA IN 2 M GAMMA IN 3 M GAMMA IN 4 M GAMMA IN 5 M GAMMA IN 6 M GAMMA IN WRITE M GAMM IN RESET [M GAMMA 1-3] M GAMMA R 1 M GAMMA G 1 M GAMMA B 1 M GAMMA R 2 M GAMMA G 2 M GAMMA B 2 M GAMMA R 3 M GAMMA G 3 M GAMMA B 3 M GAMMA WRITE [M GAMMA 4-6] M GAMMA R 4 M GAMMA G 4 M GAMMA B 4 M GAMMA R 5 M GAMMA G 5 M GAMMA B 5 M GAMMA R 6 M GAMMA G 6 M GAMMA B 6 M GAMMA WRITE
Description
1.xxx (xx/xx/xxxx) x --------xx.xx xxx [X]0 xxHxxM (X5)
(EURO/UK/ITALY/FRANCE/RUSSIA)ENTER
Remarks (Adjustment detail, etc.)
Main microprocessor version (VCTP) NOT USED NOT USED PIC version Temp inside cabinet (near panel) Last status which cause standby Error standby cause Total operating time before error
Initialisation to factory settings PUBLIC MODE flag setting Main operating hours Main operating hours reset Backlight operating hours Backlight operating hours reset x-axis setting of picture data y-axis setting of picture data Signal type of picture data Start/stop of picture data
RF AGC auto adjustment PALTUNER auto adjustment PAL auto adjustment TUNER auto adjustment SD contrast adjustment SECAM contrast adjustment SECAM contrast adjustment TUNER DAC adjustment RF AGC adjustment
COMP 15K auto adjustment Contrast adjustment
Contrast adjustment
Tuning test (tuning into 224.25 MHz) (Not Operative)
W/B adjustment, gradation 1 input setting W/B adjustment, gradation 2 input setting W/B adjustment, gradation 3 input setting W/B adjustment, gradation 4 input setting W/B adjustment, gradation 5 input setting W/B adjustment, gradation 6 input setting EEP writing of adjustment values Initialisation of adjustment values
W/B adjustment, gradation 1R adjustment value W/B adjustment, gradation 1G adjustment value W/B adjustment, gradation 1B adjustment value W/B adjustment, gradation 2R adjustment value W/B adjustment, gradation 2G adjustment value W/B adjustment, gradation 2B adjustment value W/B adjustment, gradation 3R adjustment value W/B adjustment, gradation 3G adjustment value W/B adjustment, gradation 3B adjustment value EEP writing of adjustment values
OFF/ON xxh xxM OFF/ON xxH xxM OFF/ON 0 0 PAL/COMP/HDMI/RGB ON/OFF
ENTER ENTER ENTER ENTER 32 1 1 32 20
ENTER 32
32
ENTER
160 320 480 640 800 960 OFF/ON OFF/ON
0 0 0 0 0 0 0 0 0 OFF/ON
9/11 1 2 3 4 5 6 7 8 9 10
0 0 0 0 0 0 0 0 0 OFF/ON
W/B adjustment, gradation 4R adjustment value W/B adjustment, gradation 4G adjustment value W/B adjustment, gradation 4B adjustment value W/B adjustment, gradation 5R adjustment value W/B adjustment, gradation 5G adjustment value W/B adjustment, gradation 5B adjustment value W/B adjustment, gradation 6R adjustment value W/B adjustment, gradation 6G adjustment value W/B adjustment, gradation 6B adjustment value EEP writing of adjustment values
19
LC-26P55E LC-26GA5E LC-32P55E LC-32GA5E LC-37P55E
Page 10/11 Line
1 2 3 4 5 6 7 8 9
Item [ETC] EEP CLEAR EEP CLEAR B
STAND BY CAUSE RESET AUTO INSTALLATION SW
Description
OFF/ON OFF/ON OFF/ON 0/1
Remarks (Adjustment detail, etc.)
Restore NVM data to default values Restore NVM data to default values except adjustment data Clearing of standby cause error list 0: unfinished 1:finish (The setting takes effect the next time the power is turned on.)
OPTION 0 COUNTRY AUTO: defects the actual region. AUTO L ERR RESET 0 Lamp error counter L ERR STOP 0/1 Stops Lamp Error feature (Not operative) I2C-OFF ENTER BUS STOP LCD 11/11 LC-26P50E 1 OSC FREQ 50 62 LC-32P50E LC-37P50E 2 OSC FREQ 60 62 3 PWM FREQ 50 0 6. Special features 4 PWM FREQ 60 0 PWM FREQ 1/12) `5ERROR STANDBY CAUSE (Page 409 6 PWM DUTY 227 When the unit enters standby due to operational error, total time before the error and the cause of error is 7 PWM CTRL 0
4 Special EEP SAVE (Page 12/12) ` Features
recorded on EEPROM, if possible.The values can be used to locate the fault for repair.
Storage of EEP adjustment value. - ERROR ` EEP RESTORE (Page 12/12) STAND-BY CAUSE (Page 1/11) When the unit enters standby due to operational storage area. Retrieval of EEP adjustment value from error, total time before the error and the cause of error is recordered
on EEPROM, if possible. The values can be used to locate the fault for repair. - EEP CLEAR (Page 10/11) RestoreVideodata to default values. procedure * The adjustment process mode menu is listed in Section 5. 7. NVM signal adjustment - EEP CLEAR B (Page 10/11) (1) Signal check Restore NVM data to default values except adjustment data.
Signal generator level adjustment check (Adjustment to the specified level) » Composite signal : 0.714Vp-p ± 0.02Vp-p (Pedestal to white level) 5 Video Signal Adjustment Procedure ±0.02Vp-p (Pedestal to white level) » Composite signal PAL : 0.7Vp-p » RGB signal : 0.7Vp-p± 0.02Vp-p The adjustment process mode menu is listed in Section 3. » 15K component signal : Y level 0.7Vp-p±0.02Vp-p (Pedestal to white level) 5.1. Signal check (50 Hz) PB, PR level 0.7Vp-p ±0.02Vp-p Signal generator level adjustment check (Adjustment to the specifiedd level). » 33K component signal : Y level 0.7Vp-p ± 0.02Vp-p (Pedestal to white level) PB,0.02Vp-p (Pedestal to white level) PR level 0.7Vp-p ±0.02Vp-p - Composite signal PAL : 0.7Vp-p ±
- 15K Component signal : Y level (2) (576i/50Hz) (50Hz) Entering the adjustment process mode PB, PR level
0.7Vp-p ± 0.02Vp-p (Pedestal to white level) 0.7Vp-p ± 0.02Vp-p
Enter the adjustment process mode according to Section 3.
5.2. Entering the adjustment process mode Enter(3) RF AGC adjustment mode according to Section 1. the adjutment process 5.3. RF AGC Adjustment
Adjustment point 1 Setting Adjustment conditions [Signal] PAL Field Color Bar RF signal UV [Terminal] TUNER
» Feed the PAL color bar signal (E-12ch) to TUNER. Signal level: 52 ±1 dB µV (75 LOAD)
[E-12CH]
Adjustment procedure
100% white
2
Auto adjustment Adjustment process page 3 Bring the cursor on [ËRF AGC ADJ] and press [OK]. [ËRF AGC ADJ OK] appears when finished. performance
20
LC-26P50E LC-32P50E 5.4. PAL LC-37P50E Signal & Tuner Adjustment
LC-26P55E LC-26GA5E LC-32P55E LC-32GA5E LC-37P55E
(4) PAL signal & tuner adjustment
Adjustment point 1 Setting Adjustment conditions Adjustment procedure [Signal] » Feed the PAL full field color bar signal (75% color saturation) to EXT3 VIDEO IN. PAL » Feed the RF signal (PAL color bar) to TUNER. Full Field Color Bar Composite or RF signal » Make sure the PAL color bar pattern (E-12) has the sync level of 7:3 with the picture level. [Terminal] [E-12CH] [VIDEO IN SIGNAL] EXT3 VIDEO IN TUNER
100% white
2
100% white
Auto adjustment Adjustment process page 3 Bring the cursor on [ËPAL + TUNER ADJ] and press [OK]. performance [ËPAL + TUNER ADJ OK] appears when finished.
LC-26P50E LC-32P50E LC-37P50E
(5) SECAM signal adjustment
5.5. ADC Adjustment (Component 15K) Adjustment point Adjustment conditions (7) ADC adjustment (Component 15K)
1 Adjustment Adjustment point
Adjustment 1
Adjustment procedure
» Feed the SECAM full field color bar signal (75% color saturation) to [Signal] Adjustment conditions Adjustment procedure EXT3 VIDEO IN. SECAM » Feed the COMPONENT 15K 100% full field color bar signal (100% color Full Field Color [Signal] (576i/50) Bar saturation) to EXT4 COMPONENT IN. [Terminal] COMP15K, 50Hz 100%Full Field Color Bar EXT3 VIDEO IN [Terminal] Black 100% white EXT4 [COMPONENT] Black 100% white
2
2
Auto adjustment Adjustment process page 3 Bring the cursor on [ËSECAM ADJ] and press [OK]. [ËSECAM ADJ OK] appears when finished. performance Auto adjustment Adjustment process page 4 Bring the cursor on [ËCOMP15K ADJ] and press [OK]. [ËCOMP15K ADJ OK] appears when finished. performance
(6) N358 signal adjustment
Adjustment Adjustment (8) ADC adjustment 6 White Balance point(Componentconditions Adjustment 33K) 1 Adjustment Adjustment point [Signal] Adjustment conditions Adjustment procedure
VIDEO IN. Adjustment procedure Page 7/11 shows the value of adjustment gradation (IN value) and Adjustmnet procedure Page N358 » Feed the COMPONENT 33K 100% full field color bar signal (100% color 1 Adjustment 8/11 & 9/11 show adj. offset[Signal] (initial value : 0). White balance adjustment is executed adjusting the adj. offset value, value Full Field Color Bar saturation) to EXT3 COMPONENT IN. COMP33K, 60Hz indicated on Page 8/11 & 9/11. [Terminal]
100%Full Field Color Bar EXT3 VIDEO IN [Terminal] Condition of the inspection: · Backlight: MAX (+8) [DYNAMIC] EXT3 COMPONENT IN at screen centre · Colorimeter Adjustment reference device: Minolta CA-210 100% white
» Feed the N358 full field color bar signal (75% color saturation) to EXT3 Adjustment procedure
Adjustment spec. ±0.004, Adjustment spec. ±0.002,
Inspection spec. : ±0.006 (GAMMA 1) 100% white Inspection spec. : ±0.004 (GAMMA 2...6)
2 Auto Check that the values on page Bring process on [ËN358 are set as below. If not, change them accorAdjustment:adjustment Adjustment processpage37/11 ofthe cursoradjustment ADJ] and press [OK]. [ËN358 ADJ OK] appears when finished. dingly. performance 2 Auto adjustment Adjustment process page 5 Bring the cursor on [ËHDTV ADJ] and press [OK].
performance [ËHDTV ADJ OK] appears when finished.
30
(9) HDMI signal adjustment
Adjustment point Adjustment conditions
21
Adjustment procedure » Set the output signal to 1080i/59.94 (30sF) RGB digital one.
75% color bar
Black
LC-26P55E LC-26GA5E LC-32P55E LC-32GA5E LC-37P55E
M GAMMA IN 1 M GAMMA IN 3 M GAMMA IN 5 160 480 800 M GAMMA IN 2 M GAMMA IN 4 M GAMMA IN 6 320 640 960
1- Display the current adjustment status at point 6. (Page 9/11 of process adjustment) The pattern for checking the adjustment status is toggled by pressing the "6" button on the remote control.(Normal OSD display -> "6" -> pattern for check (OSD disappears) -> "6" -> normal OSD display -> ...) 2- Read the value of the luminance meter. 3- Change M GAMMA R6/M GAMMA B6 (adjustment offset value) on page 9/11 of process adjustment so that the values of the luminance meter approach x = 0.2757 and y = 0.2825. (Basically, G is not changed. If adjustment fails only with R and B, then G should be reduced. In this case, the weaker of R and B must be fixed.) 4- If G is changed in step "3", change the values of M GAMMA G1 - M GAMMA G5 on pages 8/11 and 9/11 of process adjustment as follows. When not changed, go to step "5". Offset value of M GAMMA G1 = (Offset value of M GAMMA G6)*(160/960) Offset value of M GAMMA G2 = (Offset value of M GAMMA G6)*(320/960) Offset value of M GAMMA G3 = (Offset value of M GAMMA G6)*(480/960) Offset value of M GAMMA G4 = (Offset value of M GAMMA G6)*(640/960) Offset value of M GAMMA G5 = (Offset value of M GAMMA G6)*(800/960) 5-Display the adjustment status of the current point 5. (Each time the "5" button on the remote control is pressed, the adjustment status check pattern is toggled.) (Normal OSD display -> "5" -> Pattern display (OSD disappears) -> "5" -> Normal OSD display ->...) Change M GAMMA R5/M GAMMA B5 (adjustment offset value) on page 9/11 of process adjustment so that the values of the luminance meter approach x = 0.272 and y = 0.277. 6- Repeat step "5" for GAMMA points 4, 3, 2, and 1.
7 QS Temperature NVM Data Confirmation
If during servicing of the LCD TV set, by software upgrading or by clearing NVM, it's necessary check QS Temperature data following the method described below: Enter in Service Mode (Factory A). Enter in Factory B page 1/25, by pressing "i+" key in normal R/C. Go to page 24/25 by pressing twice "Cursor UP" key. Verify and in case necessary modify according the attached list, "QS_D1" to "QS_D7" values, depending of the screen size. 26 inch QS_D1 QS_D2 QS_D3 QS_D4 QS_D5 QS_D6 QS_D7 58 76 92 105 118 254 255 32 inch 74 89 101 112 123 133 255 37 inch 51 72 90 106 121 254 255
NOTE: -Use "P UP" or "P DOWN" for moving "up" or "down" inside the Service page. -Use "VOL +" or "VOL -" for modifying data in "+1" or "-1" unit inside the Service page. -Use "CURSOR RIGHT" or "CURSOR LEFT" for modifying data in "+10" or "-10" units inside the Service page.
22
[W/B adjustment reference value] Point 1 - 6 reference value x= 0.272 y= 0.277
LC-26P55E LC-26GA5E LC-32P55E LC-32GA5E LC-37P55E
8 Initialization to factory settings 9. Initialization to factory settings
Caution: When the factory settings have been made, all user setting data, including the channel settings, are initialized. (The adjustments done in the adjustment process mode are not initialized.) Keep this in mind when initializing these settings.
Adjustment item 1 Factory settings Adjustment conditions See to below caution Adjustment procedure » Enter the adjustment process mode. » Bring the cursor on to [INDUSTRY INIT] on page 2/11. » Use the [Volume + -] key to select a region from [EURO/UK/ITALY/ FRANCE/RUSSIA] and press [ENTER]. "EXECUTING" appears and initialization starts.After a while, "***OK***" appears and the setting is complete. Note: Never turn the power off during initialization.
The following settings will be back to their factory ones. 1. User settings 2. Channel data (e.g. broadcast frequencies) 3. Password data
After adjustments, exit the adjustment process mode. To exit the adjustment process mode, unplug the AC power cord from the outlet to forcibly turn off the power. When the power is turned off with the remote control, unplug the AC power cord and plug it back in (wait approximately 10 seconds before plugging in the AC power cord).
9 Lamp error detection
9.1. Functional description This LCD colour television has a function (lamp error detection) to be turned OFF automatically for safety when the lamp or lamp circuit is abnormal. If the lamp or lamp circuit is abnormal, or some other errors happen, and the lamp error detection is executed, the following occur. 1- The main unit of television is turned OFF 5 seconds after it is turned ON. (The power LED on the front side of TV 33 turns from green to red.) 2 - If the situation "1" happens 5 times sequentially, television can not be turned ON. (The power LED remains red.) 9.2 Countermeasures When television is turned OFF by the lamp error detection mentioned above, it enters the adjustment process with the power LED red. Entering the adjustment process turns OFF the error detection and turns ON TV. This enables the operation check to detect errors in the lamp or lamp circuit. Check whether "L ERROR RESET" on point 7, page 10/11 of the adjustment process is 1 or more. If it is 1 or more, it indicates the lamp error detection was executed. After confirming that the lamp or lamp circuit is normal, reset the lamp error counter pushing "OK" in the R/C. After resetting counter the label "***OK***" appears on Screen. 9.3. Reset standby cause error list After confirming that the lamp error counter has been erased, select "STAND BY CAUSE RESET" on point 3, page 10/11 of the adjustment process and select ON using the right cursor. For execute press "OK" in the R/C and the label "***OK***" appears on Screen.
23
LC-26P55E LC-26GA5E LC-32P55E LC-32GA5E LC-37P55E
SOFTWARE UPDATING
There are 2 methods to update software in the VCTp: I2C method and RS-232C method. · · RS-232C method is allowed when the TV is working properly and the action should be only software upgrade. I2C method is required when the VCTp flash is empty or corrupted (it means, any software inside IC running).
1 RS-232C Method Description RS-232C METHOD DESCRIPTION.
The hardware tools requirement are: 1. A Modem-null (Cross type) DB9 female to DB9 female cable. The hardware tools requirement are: 2. An1. A Modem-null (Cross type) male cable (SharpDB9 female cable. adaptor DB9 male to mini-Din 9 pin DB9 female to Code: QCNWGA015WJPZ) 3. Make the connections as indicated in the figure: pin male cable (Sharp Code: QCNWGA015WJPZ) 2. An adaptor DB9 male to mini-Din 9
3. Make the connections as indicated in the figure: Computer
TV set
Before using RS-232C updating method is necessary to configure a Terminal PC software. HyperTerminal has Software requirements : been selected as a Terminal software because it's include in all Windows versions VCTp software from and you can connector is necessary to use a Tera Term (Pro) free folder. To upgrade as an accessory,RS-232C external find it inside "Accessories\Communications"software. For thisThe URL of Tera Term home page is: the next steps: reason, please follow carefully
http://hp.vector.co.jp/authors/VA002416/teraterm.html (The address may be changed in future) Tera Term (Pro) supported operating systems: MS-Windows 95 or upper 1. First time HyperTerminal is used, it's necessary to MS-Windows NT 3.5 and 4.0 or upper configure some settings. Follows Note.- For Windows 3.1 use Tera Term version 1.X. next action to configure two connection: empty floppy (9600bps) and high (for example C:\ TEMP ). Copy all the distribution files to anlow speed disk or temporary directoryspeed (115200bps). Run SETUP.EXE and follow the instruction given by it. After the 2. Create theNew Connection filelonger name "P55_9600bps". or may keep them in the floppy installation, a distribution files are no with needed, you can delete them disk. 3. Select a free COM port and select the Port Settings
How to use Tera Term Pro : When the Tera Term (Pro) program is used, it's necessary to configure some settings. Follows next action to configure the connection:
properties as follows:
24
LC-26P55E LC-26GA5E LC-32P55E LC-32GA5E LC-37P55E
1. Select Setup Serial port O.K. Appear the follow screen:
CheckSerial connection between TV set and PC, sending a wrong command, as for the port to use: COM x Baud rate: 9600 example: "aaa". TV set returns an "err" label as an syntaxis ERROR (Not correct order Data: 8 bits or sequence). Parity: none Stop: 1 bit Send a "DWMD" (capital letters) command to enter TV set in Download Mode. Flow control: none Change Enter O.K. a baud rate to 115200. Select setup baud rate 115200 O.K.
Select a follow settings: Serial port to use: COM x Baud rate: 9600 Data: 8 between TV set and PC, sending a wrong command, as for example: "aaa". TV set returns 3. Check the connectionbits an "err" label as an syntaxes ERROR (Not correct order or sequence). Parity : none Send a "DWMD" (capital letters) command to enter TV set in Download Mode. Stop: 1 bit Change a baud rate to 115200. Select: Setup Baud rate 115200 O.K. Flow control: none Click O.K.
2. Select follows settings:
Check the connection between TV set and PC, sending a wrong command, as for example: "aaa". TV set returns an "err" label as an syntaxis ERROR (Not correct order or sequence). Send a "DWMD" (capital letters) command to enter TV set in Download Mode 4. Select: File Change aXMODEM Sent Transfer baud rate to 115200. Select setup baud rate 115200 O.K.
Select to File transfer XMODEM sent
25
LC-26P55E LC-26GA5E LC-32P55E LC-32GA5E LC-37P55E
5. Choose the file for upgrade and click "Open".
Choose the file for upgrade and push "open".
. After 6. After select "Open" the upgradepress "Open" button the upgrade process starts as follows: process starts as follows:
When flash update process finishes, the " Flash programming complete " label appear in the screen , the device automatically go to switch off, and in a few seconds go to switch on again.
appear in the screen the " Flash programming complete " label appear in the screen , the device 7. When flash update process finishes, ,thedevice automatically go to switch off, and in a few seconds go to switch on again. automatically go to switch off, and in a few seconds go to switch on again. When flash update process finishes, the " Flash programming complete " label
Enter in service mode and check the main soft version.
VERY IMPORTANT NOTE: Seguir con el service manual actual
VERY IMPORTANT NOTE: During the updating time, please don't use the PC for other purposes, in order to abolish communication problems between TV set and PC. If TV set was not updated properly, the TV won't have the software to startup again, and you must follow the "I2C method" to update another time the TV set.
26
Enter in service mode and check the main soft version.
LC-26P55E LC-26GA5E LC-32P55E LC-32GA5E LC-37P55E
2 I2C Method Description
The hardware tools requirement are: 1. A Parallel port I2C interface with 20 pin to 3 pin cable (Sharp Code: CKIT-0004WJV0). 2 . Make the connections as indicated below: a. Connect Parallel port I2C interface to LPT port of the computer. b. Connect the 20 to 3 pin cable from the I2C interface to the P2306 socket in the main board (XD603).
To P2306
To PC
QCNWGA100WJZZ
QPWBX0004WJZZ
I2C Interface (CKIT-0004WJV0) Before using I2C method is necessary to install Visual I2C software following next procedure. 1. Install Visual I2C release V3.2.3b from file ("Setup_Visual_I2C_v3-2-3b8h.exe"). ·It's strongly recommended to accept the suggested default folder ("C:\Program Files\Micronas\Visual I2C"). 2. Install Visual I2C VCTp extension from file ("Setup_VI2C_for_VCT6wxyP_v0111.exe"). ·It's interesting to change default folder to same as Visual I2C ("C:\Program Files\Micronas\Visual I2C"). ·During this installation process is possible to install also a complementary software to manage NVM memories . This installation Parallel driver this reason uncheck the option when version from existingyou. In case of the 3. Install is not needed, for depending of your Windows the setup program ask to files inside installation it's interesting to change default"C:\Program as Visual I2C ("C:\ProgramI2C\Port_Driver", following Visual I2C installation folder folder to same Files\Micronas\Visual Files\Micronas\Visual I2C"). 3. Install Parallel driver depending of your Windows version from existing files inside the Visual I2C installation next criteria:. folder "C:\Program Files\Micronas\Visual I2C\Port_Driver", following next criteria:. a. Windows 98/Me ("Setup_LptDrv_v0104_9x.exe"). a. Windows 98/Me ("Setup_LptDrv_v0104_9x.exe"). b. Windows NT ("Setup_LptDrv_v0104_NT_2000.exe"). b. Windows NT ("Setup_LptDrv_v0104_NT_2000.exe"). c. Windows Xp/2000 ("Setup_LptDrv_v020201_XP_2000.exe"). c. Windows Xp/2000 ("Setup_LptDrv_v020201_XP_2000.exe"). After installing Visual Visual I2C, generated generated file structure should After installing I2C, the new the new file structure should look like this:
look like this:
4. Check installation LPT driver using "C:\Program Files\Micronas\LptDrv\LptDrvTest.exe". 27 After run this software, if LPT driver is installed properly must appear this screen:
LC-26P55E LC-26GA5E LC-32P55E LC-32GA5E LC-37P55E
4. Check installation LPT driver using "C:\Program Files\Micronas\LptDrv\LptDrvTest.exe". After run this software, if LPT driver is installed properlyLPT appear this screen: 4. Check installation must driver using "C:\Program Files\Micronas\LptDrv\LptDrvTest.exe".
After run this software, if LPT driver is installed properly must appear this screen:
4. Check installation LPT driver using "C:\Program Files\Micronas\LptDrv\LptDrvTest.exe". After run this software, if LPT driver is installed properly must appear this screen:
If the result is not OK, check inside PC bios: Parallel Port Mode=EPP To run VCTp software updater program, please click over "VCTP" icon from "START\All To run VCTp software update I2C\IC\VCTP" and after Visual from "START\All programs\Micronas\Visual programs\Micronas\Visual program, please click over "VCTP" icon I2C finish their starting process click on I2C\IC\VCTP" result additionalfinish their starting bios: Parallel "TVT" module. As "TVT" If theand after Visual I2C check insideit's process clickto Port Mode=EPPadditional method, it's posmodule. As is not OK, method, PC possible on create a direct access to "C:\Program sible to create a direct access to "C:\Program Files\Micronas\Visual I2C\ic\vct6wxyP\vctq_tvt.vi2c" and launch it from Files\Micronas\Visual I2C\ic\vct6wxyP\vctq_tvt.vi2c" and launch it from Windows Desktop. Windows Desktop.
To run VCTp software updater program, please click over "VCTP" icon from "START\All 1 5 programs\Micronas\Visual I2C\IC\VCTP" and after Visual I2C finish their starting process click on "TVT" module. As additional method, it's possible to create a direct access to "C:\Program Files\Micronas\Visual I2C\ic\vct6wxyP\vctq_tvt.vi2c" and launch it from Windows Desktop.
·If the result is not OK, check inside PC bios: Parallel Port Mode=EPP
1
5
2 4
2 4 3
6
6 7
7
To start updating process follow next instructions: 1. Set Autoread in ON option. 2. Click on "GO" button. 3. Wait until "40" appears in Bootloader Version field. 4. Close DOS pop up windows pressing any key ("Press any key to continue...".). 5. Click on the "Erase flash" button and wait for a seconds and set the AutoRead to OFF. 6. Check in the desired software version is selected in the "Load BinàFlash" option. If it's not the correct one, please double click on the file name and select it. The first time this software is use it's necessary to confirm write Addressing margin as from 0x0 to 0x7ffff.
28
4. 5. 5. 6. 6.
Close on the "Erase flash" button andany key ("Press anyand set continue...".). to OFF. Click DOS popup windows pressing wait for a seconds key to the AutoRead LC-26P55E Click onin the desired software version is for a seconds and set the AutoReadLC-26GA5E to OFF. Check the "Erase flash" button and wait selected in the "Load BinFlash" option. If it's LC-32P55E LC-32GA5E Check incorrect one, please double click on the file name and select it. The option. If it's not the the desired software version is selected in the "Load BinFlash" first time this LC-37P55E not the correct one, necessary to confirmon the file name and select it.from 0x0 to 0x7ffff. software is use it's please double click writte Addressing margin as The first time this software is use it's necessary to confirm writte Addressing margin as from 0x0 to 0x7ffff.
7. the "Load Bin "Load to start updating process. 7. Click on Click on the à Flash"Bin Flash" to start updating
process. 7. Click on the "Load Bin Flash" to start updating process.
8. When the updating process finishes, the "Progress" popup window automatically closes. 8. When the updating problem finishes, theupdating process window automatically closes. If appears some process during the "Progress" popup a error label appears in the If updating information line. "Progress" popupdating process a error label appears problem filename process problem 8. When the appears somefinishes, the during the up window automatically closes. If appears some in the during thefilenameprocess a errorline. appears in the filename information line. updating information label If the TV has problem to enters in the "Bootloader mode", it's possible to force it by If the TV If the TV enters in the "Bootloader mode", it's possible to force it below: possible to force it by has problem to has problem to enters in the "Bootloader mode", it's hardware method. This alternative method is described by hardware method. This alternative method is described below: hardware method. This alternative method is described below: 1. Switch off TV set or hold line to RESET line to GND. 1.Switch off TV set or hold VCTp RESETVCTp GND. 1. Switchline (pin 1) to or hold 1) to GND (pin line to GND. connector. off SCL line (pin 3) in P2306 connector. 2. Pull downTV set GND (pinVCTp RESET 3) in P2306 2.Pull down SCL 2. Pull set on release or release line. RESET line. 3. Switch or TV line (pin 1) to VCTp 3.Switch on TVdown SCLsetVCTp RESETGND (pin 3) in P2306 connector. 3. Switch onSCLset minimum of 2VCTp RESET line. 4.Release Release TV after or release seconds. of 2 seconds. 4. SCL pull down pull down after minimum 5.Check ifReleasein VCTp is down afterAutoread setting in ON. 4. Check ifSCL pull in bootloader mode with Autoread setting in ON. 5. VCTp is bootloader mode with minimum of 2 seconds. 6.Wait 6. Check if VCTp Bootloader in Bootloaderwith Autoread setting in ON. until "40" until "40" appears Version field. 5. Wait appears in is in bootloader mode Version field. 7.Follow instruction from item 5 on software method. Version field. 6. Wait until "40" appears in Bootloader 7. Follow instruction from item 5 on software method. 7. Follow instruction from item 5 on software method. Sometimes, depending on the PC hardware, the progress bar runs very fast (Normal time: 1 minute) or some error mes in the filename information line. the PC hardware, the progress bar runs of LPT port, for this sage appears Sometimes, depending onThis means it's necessary to modify some parametervery fast (Normal Sometimes, depending onerror PC hardware,and increase Delay from "0" to "1" or "2" line. This reason select time:Preferences" on the "File\Preferences..." menu the progress bar runs very fast (normally, "LPT 1 minute) or some the message appears in the filename information (Normal time: 1best choice). some modify some parameter of LPT port, for this reason select This these values are the minute) or means it's necessary to error message appears in the filename information line. "LPT means it's necessary "File\Preferences..." menu and increasefor this from "0"select "LPT Preferences" on the to modify some parameter of LPT port, Delay reason to "1" or "2" Preferences" on the "File\Preferences..." menu and increase Delay from "0" to "1" or "2" (normally, these values are the best choice). (normally, these values are the best choice).
RS-232C METHOD DESCRIPTION.
29
The hardware tools requirement are: 1. A Modem-null (Cross type) DB9 female to DB9 female cable.
LC-26P55E LC-26GA5E LC-32P55E LC-32GA5E LC-26P55E LC-37P55E LC-32P55E
LC-37P55E
TROUBLESHOOTING TABLE
NO YES NO YES NO
TROUBLESHOOTING TABLE
*
YES
YES
NO
NO
YES
NO YES NO YES
YES NO NO YES
* C705, C706 for 32" and 37". C707 for 26".
36
30
LC-26P55E LC-26GA5E LC-32P55E LC-26P55E LC-32GA5E LC-37P55E LC-32P55E
Troubleshooting Table (continued)
LC-37P55E
TROUBLESHOOTING TABLE (Continued)
NO YES
YES NO
NO YES NO YES NO NO NO NO
YES
YES
YES
YES
YES NO YES
37
31
LC-26P55E LC-26GA5E LC-32P55E LC-32GA5E LC-26P55E LC-37P55E LC-32P55E
Troubleshooting Table (continued)
LC-37P55E
TROUBLESHOOTING TABLE (Continued)
YES YES NO YES NO YES NO
YES
YES
YES
NO
OK
NO YES NO YES NO
YES
38
32
LC-26P55E LC-26GA5E LC-32P55E LC-32GA5E LC-26P55E LC-37P55E LC-32P55E
Troubleshooting Table (continued)
LC-37P55E
TROUBLESHOOTING TABLE (Continued)
NO NO NO NO
NO
YES
YES
YES
NO
NO
NO
NO NO NO YES
YES
39
33
LC-26P55E LC-26GA5E LC-32P55E LC-32GA5E LC-37P55E LC-26P55E
LC-32P55E LC-37P55E Troubleshooting
TROUBLESHOOTING TABLE (Continued)
Table (continued)
YES NO
YES NO YES NO YES NO YES NO
YES NO
YES NO YES
40
34
Troubleshooting Table (continued)
LC-26P55E LC-32P55E LC-37P55E
LC-26P55E LC-26GA5E LC-32P55E LC-32GA5E LC-37P55E
TROUBLESHOOTING TABLE (Continued)
YES
YES
YES
NO YES
NO YES
NO YES
NO YES
NO YES
NO YES
NO YES
NO YES
NO YES
NO YES
NO YES
NO YES
NO YES
NO
NO
YES NO
NO
41
35
LC-26P55E LC-26GA5E LC-32P55E LC-32GA5E LC-26P55E LC-37P55E LC-32P55E
Troubleshooting Table (continued)
LC-37P55E
TROUBLESHOOTING TABLE (Continued)
NO
NO
NO
YES
YES
YES
NO
NO
NO
YES YES NO
YES
YES NO YES
NO YES NO YES
42
36
LC-26P55E LC-26GA5E LC-32P55E LC-32GA5E LC-26P55E LC-37P55E LC-32P55E
Troubleshooting Table (continued)
LC-37P55E
TROUBLESHOOTING TABLE (Continued)
NO
NO
NO
YES
YES
YES
NO
NO
NO
YES YES NO
YES
YES NO YES
NO YES NO YES
43
37
LC-26P55E LC-26GA5E LC-32P55E LC-26P55E LC-32GA5E LC-32P55E LC-37P55E
Troubleshooting Table (continued)
LC-37P55E
TROUBLESHOOTING TABLE (Continued)
YES NO
YES NO
YES NO
YES NO YES NO NO
YES
YES YES NO YES
NO YES NO YES
44
38
LC-26P55E LC-26GA5E LC-32P55E LC-32GA5E LC-26P55E LC-37P55E
Troubleshooting Table (continued)
LC-32P55E LC-37P55E
TROUBLESHOOTING TABLE (Continued)
YES NO YES NO
YES NO
YES NO YES
NO YES NO YES
45
39
LC-26P55E LC-26GA5E LC-32P55E LC-32GA5E LC-26P55E LC-37P55E LC-32P55E
Troubleshooting Table (continued)
LC-37P55E
TROUBLESHOOTING TABLE (Continued)
YES NO YES NO
YES NO
YES NO
YES
NO
YES NO
YES NO YES
NO YES NO YES
46
40
Troubleshooting Table (DISPLAY AREA)
TROUBLESHOOTING TABLE (Continued)
LC-26P55E LC-26P55E LC-32P55E LC-26GA5E LC-37P55E LC-32P55E
LC-32GA5E LC-37P55E
NO YES YES
NO
NO
YES NO YES NO YES
NO YES
47
41
LC-26P55E LC-26GA5E LC-32P55E LC-32GA5E LC-37P55E
MAJOR ICs INFORMATION
1. General ICs Information
XD603WJ (MAIN UNIT): · IC1905 : HDMI RECEIVER Part number: Sii9021 Sharp code: VHISII9021+-1Q The Sii9021 is a second generation panel link cinema receiver that is compatible with the HDMI 1.1 (High Definition Multimedia Interface) specification. The Sii9021 is capable of receiving and outputting two channel digital audio signals at up to 192 kHz-- an excellent solution for digital TVs. This IC features the following. 1) Digital video interface supports video processors. 2) Analog RGB and YPbPr output: 10-bit DAC. 3) Digital audio interface supports high-end audio systems. · IC1901 : NVM OF HDMI (E-EDID) Part number: 24LC2BIN Sharp code: VHI24LC2BIN-1Y This IC is a 2-wire (I2C bus type) serial EEPROM this is electrically programmable. This EEPROM chip stores the data structure used to carry configuration information for optimal use of a display (EDID data). · IC2701 : SYNC SELECT Part number: TVHC153T Sharp code: VHITVHC153T-1Y This VHC153 is a high-speed Dual 4-input multiplexer with common select inputs and individual enable inputs for each section. IC2704 : HDMI & RGB SOUND MULTIPLEXER Part number: CD4052BP Sharp code: VHICD4052BP-1Y The TC74HC4052A is a high-speed CMOS analog multiplexer/demultiplexer backed by silicon gate CMOS technology. The multiplexer function includes the selection and mixing of analog and digital signals. The chip consists of 4 channels (x 2). A digital signal through the control terminal turns on the switch of a corresponding channel. · IC3002 : VIDEO PROCESSOR Part number: VCTP Sharp code: RH-IXB624WJZZQ The VCT 6wxyP family is dedicated to high-quality FPD and double-scan TV sets. The memory and program ROM are integrated in the IC. Modular design and deep submicron technology allow the integration of audio, video, teletext, OSD, and controller-related functionalities. They cover the whole range of flat-panel display TVs. The IC is based on proven functional blocks of existing products like VCT 49xxI, VSP 94x5B, and DPS 94xxB. Each member of the IC family contains the entire audio, video, upconversion processing for 4:3 and 16:9 50/60 Hz progressive or 100/120 Hz interlaced stereo TV sets plus the control/data interface for flat-panel displays. The integrated microcontroller is supported by a powerful OSD and graphics generator with integrated teletext acquisition. The VCT 6wxyP family provides a front-end video processing unit with 4 CVBS-Y/C or component inputs for HDTV, EDTV, and SDTV. A VBI slicer, support of 1000 pages of teletext, and a 3-D comb filter for PAL and NTSC (in certain versions) are also available. The front-end unit further allows to process an SD and an HD source in parallel, thus enabling PiP and PaP functionality. Motion-adaptive de-interlacing, temporal noise reduction, and film mode detection are based on a unified memory technology. Post-scaling in the display processing block ensures the desired output format. Display processing is supported by an 8-bit 8051-compatible controller. By means of powerful alpha-blending, the graphics mixer composes the output image from following image layers: the video layer, the OSD layer and the pixel graphics layer. The audio part consists of a multistandard sound IF demodulator and a baseband processor supporting all desired sound features in this range. A connection for additional features, such as advanced motion compensation via -Micronas' FRC 94xyA, is also provided.
42
LC-26P55E LC-26GA5E LC-32P55E LC-32GA5E LC-37P55E
· · IC3001 : NVM 64Kb-E2PROM Part number: BR24L64F Sharp code: VHIBR24L64F-1Y The BR24L64F is a 2-wire (I2C bus type) serial EEPROM that is electrically programmable. This IC stores the control data of system contents (last memory, for example) for the main microprocessor's AV PWB and main PWB. The data is given out by commands from the main microprocessor. · IC3003 : PIC MICROCONTROLLER Part number: PIC16F913 Sharp code: RH-IXB664WJZZY 28 Pin Flash-Based, 8 bit CMOS Microcontrollers with LCD Driver and nanoWatt Technology. This IC is controlled via I2C and works how expander of ports. This IC has led control and include A/D converter. · IC2301 : RS-232 TRANSMITTERS/RECEIVERS Part number: ISL83220 Sharp code: VHIISL83220-1Y The ISL83220E is a 3.0V to 5.5V powered RS-232 transmitter/receiver,+/-15kV ESD protected, minimum data rate 250 kpbs. · IC2303 : NVM OF PC MODE (EDID) Part number: BR24C21F Sharp code: VHIBR24C21F-1Y This IC is a 2-wire (I2C bus type) serial EEPROM this is electrically programmable. This EEPROM chip stores the data structure used to carry configuration information for optimal use of a display (EDID data). · IC1701: POWER RESET OF +BU1.8V Part number: BU4239G Sharp code: VHIBU4239G+-1Y Low voltage detector IC with adjustable output delay. Standard Detection Voltage = 3.9V · IC1702: BU+3.3V (VOLTAGE INPUT: BU+5V) Part number: PQ20WZ11 Sharp code: VHIPQ20WZ11-1Y Low power-loss voltage regulators. Variable Output. Output current 1A. Built-in overcurrent, overheat protection functions, ASO protection circuit. · IC1703: S+8V (VOLTAGE INPUT: POW+12V) Part number: PQ20WZ11 Sharp code: VHIPQ20WZ11-1Y Low power-loss voltage regulators. Variable Output. Output current 1A. Built-in overcurrent, overheat protection functions, ASO protection circuit. · IC1707: +3.3V (VOLTAGE INPUT: POW+5V) Part number: PQ20WZ11 Sharp code: VHIPQ20WZ11-1Y Low power-loss voltage regulators. Variable Output. Output current 1A. Built-in overcurrent, overheat protection functions, ASO protection circuit. · IC1708: +1.8V (VOLTAGE INPUT: POW+5V) Part number: MP1410 Sharp code: VHIMP1410ES-1Y DC to DC Converter. 2A Step down switch mode regulator with a built in internal Power Mosfet. Fault condition protection includes cycle-by-cycle current limiting and thermal shutdown. · IC1706: BU+1.8V (VOLTAGE INPUT: BU+5V) Part number: MP1410 Sharp code: VHIMP1410ES-1Y DC to DC Converter. 2A Step down switch mode regulator with a built in internal Power Mosfet. Fault condition protection includes cycle-by-cycle current limiting and thermal shutdown.
43
LC-26P55E LC-26GA5E LC-32P55E LC-32GA5E LC-37P55E
· IC1710: Part number: EPM3064 Sharp code: RH-IXB716WJZZQ This IC is a CPLD of Altera and use CMOS EEPROM cells to implement logic functions with 64 Macrocells. This device controls ON/OFF power supply and signals for inverter unit.
FD604WJ (AV UNIT): · IC301 & IC302 : AUDIO AMPLIFIER Part number: TDA8931T Sharp code: VHITDA893T-1Y The TDA8931 is a switching power stage for high efficiency class-D audio power amplifier systems. The IC has a high efficiency so that a heat sink is not required up to 20W (RMS). · IC303 : HEADPHONE AMPLIFIER Part number: NJM4558M Sharp code: VHINJM4558M-1Y The NJM4558 is a dual high-gain operational amplifier internally compensated and constructed