Toshiba 26HLV66 - 26" LCD TV User manual

SERVICE MANUAL
LCD Color Television
26HLV66 Rev.1
This model is classified as a green product (*1), as indicated by the underlined serial number.
This Service Manual describes replacement parts for the green product. When repairing this
green product, use the part(s) described in this manual and lead-free solder (*2).
For (*1) and (*2), refer to GREEN PRODUCT PROCUREMENT and LEAD-FREE
SOLDER.
© TOSHIBA CORPORATION 2009
For Technical Bulletins, Technical Tips, or other information regarding the
service of this model, visit the Toshiba America Consumer Products National
Service Division website at:
www7.toshiba.com

IMPORTANT NOTICE
WARNING: Do not modify or alter the information or data provided herein without prior written consent by Toshiba.
Toshiba shall not be liable to anybody for any damages, losses, expenses or costs, if any, incurred in connection with or
as a result of such modification or alteration.
THE INFORMATION OR DATA HEREIN SHALL BE PROVIDED "AS IS" WITHOUT ANY WARRANTY OF ANY KIND, EITHER
EXPRESS OR IMPLIED WARRANTY OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
Toshiba shall not be liable for any damages, losses, expenses or costs, if any, incurred in connection with or as a result of
use of any information or data provided herein.
GREEN PRODUCT PROCUREMENT
The EC is actively promoting the WEEE & RoHS Directives that define standards for recycling and reuse of Waste Electrical and
Electronic Equipment and for the Restriction of the use of certain Hazardous Substances. From July 1, 2006, the RoHS Directive will
prohibit any marketing of new products containing the restricted substances.
Increasing attention is given to issues related to the global environmental. Toshiba Corporation recognizes environmental protection
as a key management tasks, and is doing its utmost to enhance and improve the quality and scope of its environmental activities. In
line with this, Toshiba proactively promotes Green Procurement, and seeks to purchase and use products, parts and materials that
have low environmental impacts.
Green procurement of parts is not only confined to manufacture. The same green parts used in manufacture must also be used as
replacement parts.
LEAD-FREE SOLDER
WARNING: This product is manufactured using lead-free solder as a part of a movement within the consumer products industry at
large to be environmentally responsible. Lead-free solder must be used in the servicing and repair of this product.
The melting temperature of lead-free solder is higher than that of leaded solder by 86ºF to 104ºF (30ºC to 40ºC). Use of a soldering
iron designed for lead-based solders to repair product made with lead-free solder may result in damage to the component and or
PCB being soldered. Great care should be made to ensure high-quality soldering when servicing this product especially when
soldering large components, through-hole pins, and on PCBs as the level of heat required to melt lead-free solder is high.
SAFETY INSTRUCTION
WARNING: Before servicing this chassis, read the "Safety Precaution" and "Product Safety Notice" instructions below.
Safety Precaution
WARNING: Servicing should not be attempted by anyone unfamiliar with the necessary precautions on this receiver. The following
are the necessary precautions to be observed before servicing this chassis.
1. An isolation transformer should be connected in the power line between the receiver and the AC line before any service is
performed on the receiver.
2. Always disconnect the power plug before any disassembling of the product. It may result in electrical shock.
3. When replacing a chassis in the cabinet, always be certain that all the protective devices are put back in place, such as
nonmetallic control knobs, insulating covers, shields, isolation resistor-capacitor network, etc.
4. Always keep tools, product components, etc. away from children as these items may cause injury.
5. Depending on the model, use an isolation transformer or wear suitable gloves when servicing with the power on.
Disconnect the power plug to avoid electrical shock when replacing parts. In some cases, alternating current is also
impressed in the chassis, so electrical shock is possible if the chassis is contacted with the power on.
6. Always use the replacement parts specified for the particular model when making repairs. The parts used in products
require special safety characteristics such as inflammability; voltage resistance, etc. therefore, use only replacement parts
1

that have these same characteristics. Use only the specified parts when the mark is indicated in the circuit diagram or
parts list.
7. Part mounting and wire routing should be the same as that used originally. For safety purposes, insulating materials such as
isolation tubes or tape are sometimes used and printed circuit boards are sometimes mounted floating. Also make sure that
wiring is routed and clamped to avoid parts that generate heat or use high voltage. Always follow the manufactures wiring
routes / dressings.
8. Always ensure that all internal wirings are in accordance before re-assembling the external casing after a repair is
completed. Do not allow internal wiring to be pinched by cabinets, panels, etc. Any error in reassembly or wiring can result
in electrical leakage, flame, etc., and may be hazardous.
9. NEVER remodel the product in any way. Remodeling can result in improper operation, malfunction, electrical leakage, or
flame, which may be hazardous.
10. Always perform an AC leakage current check on the exposed metallic parts of the cabinet such as antennas, terminals,
screw heads, metal overlays, control shafts, etc. to be sure that the set is safe to operate without any danger of electrical
shock before returning the set to the customer.
11. To check leakage current: (After completing the work, measure the leakage current to prevent an electrical shock.)
xPlug the AC line cord directly into a 120V AC outlet. Do not use an isolation transformer for this check.
xUse an AC voltmeter having 5000 ohms per volt or more sensitivity in the following manner.
Connect a 1500 ohm 10 watt resistor, paralleled by a 0.15 µF, AC type capacitor, between a known good earth ground (water pipe,
conduit, etc.) and the exposed metallic parts, one at a time. Measure the AC voltage across the combination of 1500 ohm resistor
and 0.15 µF capacitor. Reverse the AC plug at the AC outlet and repeat AC voltage measurements for each exposed metallic part.
Voltage measured must not exceed 0.3 volts rms. This corresponds to 0.2 milliamps AC. Any value exceeding this limit constitutes a
potential shock hazard and must be corrected immediately.
Product Safety Notice
Many electrical and mechanical parts in this chassis have special safety-related characteristics. These characteristics are often
overlooked in a visual inspection. The protection afforded by them cannot necessarily be obtained by using replacement
components rated for higher voltage, wattage, etc. Replacement parts which have these special safety characteristics are identified
in this manual and its supplements. Electrical components having such features are identified by the international hazard symbols
on the schematic diagram and the parts list. Before replacing any of these components, read the parts list in this manual carefully.
The use of substitute replacement parts which do not have the same safety as specified in the parts list may create electrical shock,
fire, or other hazards.
SAFETY INSTRUCTION
WARNING: The metal edges of the LCD module are sharp, handle it with care.
The LCD module can easily be damaged during disassembly or reassembly; therefore, always observe the following precautions
when handling the module.
1. In the event that the screen is damaged or the liquid crystal (fluid) leaks, do not breathe in, drink, or touch this fluid. Such
actions could cause toxicity or skin irritation. If this fluid should enter the mouth, rinse the mouth thoroughly with water. If the
2

fluid should contact the skin or clothing, wipe off with alcohol, etc., and rinse thoroughly with water. If the fluid should enter
the eyes, immediately rinse the eyes thoroughly with running water.
2. When attaching the LCD module to the LCD cover, position it appropriately and fasten at the position where the display can
be viewed most conveniently.
3. Carefully align the holes at all four corners of the LCD module with the corresponding holes in the LCD cover and fasten
with screws. Do not strongly push on the module because any impact can adversely affect the performance. Also use
caution when handling the polarized screen because it can easily be damaged.
4. If the panel surface becomes soiled, wipe with cotton or a soft cloth. If this does not remove the soiling, breathe on the
surface and then wipe again. If the panel surface is extremely soiled, wipe the panel surface with CRT cleaner sprayed
onto the cloth. Do not spray the cleaner on the panel. Pay attention not to scratch the panel surface.
5. Leaving water or other fluids on the panel for an extended period of time can result in discoloration or stripes. Immediately
remove any type of fluid from the screen.
6. Glass is used in the panel construction. Damage can occur if dropped or struck with hard objects.
3

7. CMOS-LSI circuitry is used in the LCD module, so avoid damage due to static electricity. When handling the module, use a
wrist ground or anchor ground.
8. Do not expose the LCD module to direct sunlight or strong ultraviolet rays for extended periods.
9. Do not store the LCD module below the temperature conditions described in the specifications. Doing so could result in
freezing of the liquid crystal, loss of resilience, or other damage.
10. Do not disassemble the LCD module. Such actions could result in improper operation.
11. When transporting the LCD module, do not use packing containing epoxy resin (amine) or silicon resin (alcohol or oxim).
The gas generated by these materials can cause loss of polarity.
4

Entering Service Mode
1. Set VOLUME to minimum and press MUTE button twice on the remote
control.
Ļ
2. Press MUTE button again and hold button down.
Ļ
Service Mode display
3. While holding the MUTE button, press MENU button on TV set.
Selecting the Adjusting Item
Every pressing of CH or button in the service mode changes the adjustment items.
Adjusting the Data
Pressing of VOLUME or button will change the value of data in the range from 00H to FFH. The variable range depends on
the adjusting item.
Exiting Service Mode
Press the POWER button once to turn off the TV.
5

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SMART2006002_Version1.1
LED STATUS INDICATIONS
6

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SMART2006002_Version1.1
P803B
P812A CN90A P804
CN61
CN81
Wont Turn ON
3.3v on Pin 7
of CN49A
3.0 V on Pin 5
of P812A
3.3v on Pin
8,9,11 of
CN90A
Yellow LED
Flashing
Yes
Yes
Yes
3.3v on Pin 10
of P812A at Power
Press
No No
0v at Pin 1 of
CN42A at Power
Press?
Replace Power
Unit
Replace AV/
Terminal PCB
Check Keyboard
Yes No
Yes
Replace Seine/
Digital PCB
5v on Pin 4 of
CN49A
No 18v on Pin 13 of
P803B
No Check FE75 and
Power Unit
No
Replace Low B
PCB
Replace AV/
Terminal PCB
Yes
Yes
3.3v on Pin 8
of P812A
No No Replace AV/
Terminal PCB
Replace Low B
PCB
Yes
Troubleshooting Flowchart 2006 LCD
“TV Does Not Power On”
V1.0
CN49A
P811B
TP12
AV Terminal PCB
Seine PCB
Power PCB
LowB PCB
D-Tuner
PCB
7

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SMART2006002_Version1.1
See Page 2 of 6 for Connector and Plug Locations
8

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SMART2006002_Version1.1
Troubleshooting Flowchart 2006 LCD
“Loss of Video (Blank Screen) Has OSD”
V1.0
Select Ant 1 input
without any RF
source attached
then look at the
Monitor Out
(Video) with
another TV
Snow on
Monitor Out?
Power Supply
OK?
CN81 Pin 2 (32v)
CN81 Pin 3 (5v)
CN81 Pin 6 (1.6v)
Yes Replace D-Tuner
PCB
Low B Supply
OK
P811B Pin 5 (32v)
P811B Pin 9 (6v)
P812B Pin 1 (3.3v)
Main Power
Supply OK?
P803B Pin 15 (40v)
P803B Pin 5 (6v)
P803B Pin 9 (12v)
Check Fuses and
Main Power PCB
Replace Low B
PCB
Replace AV/
Terminal PCB
Yes
Yes
No
Yes
No
No Video But Has
OSD
~2.7v TP12
D-Tuner PCB
No
HDMI OK?
YesNo
Replace AV/
Terminal PCB
Yes
Replace Seine/
Digital PCB
No
See Page 2 of 6 for Connector and Plug Locations
9

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SMART2006002_Version1.1
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SMART2006002_Version1.1
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15

16

ReplacementPartsList
Location Part No. Description
A201 75002662 CESE/COVER/LIDFRONTBEZELASSY
A320 75002330 PIECEFRONTAVASSY
A340 75001920 PIECEBUTTON7KEY
A401 75002661 CESE/COVER/LIDBACKCOVERASSY
A420 75002331 LEGSTANDASSY
A541 75002663 PANELDVDPANELASSY
A545 75002660 CESE/COVER/LIDCASEDVDBOTTOM
B001 75002324 DISPLAY,T260XW02V5
BD01 75002659 DVDPLAYER/RECORDER,RLͲSL2003(T1)
C801 76503507 PLASTICFILM,AC275V0.22UFK
C802 76503507 PLASTICFILM,AC275V0.22UFK
C803 76168103 PLASTICFILM,400V0.22UFJ
C804 76214103 CERAMICDISC,500VB0.01UFK
C805 76092281 CERAMICDISC,AC250VE4700PF
C806 76092281 CERAMICDISC,AC250VE4700PF
C810 76125038 ELECTROLYTIC,200V1200UFM
C811 76092557 CERAMICDISC,AC250VE2200PFM
C812 76092557 CERAMICDISC,AC250VE2200PFM
C813 76567334 PLASTICFILM,50V0.33UFJ
C815 76567474 PLASTICFILM,50V0.47UFJ
C816 76073183 ELECTROLYTIC,35V220UFM
C817 76567224 PLASTICFILM,50V0.22UFJ
C819 76214101 CERAMICDISC,500VB100PFK
C820 76567224 PLASTICFILM,50V0.22UFJ
C821 76092343 CERAMICDISC
,
2KV680PFK
,
C822 76092344 CERAMICDISC,2KV820PFK
C823 76092341 CERAMICDISC,2KVR470PFK
C824 76591102 PLASTICFILM,50V1000PFJ
C825 76567105 PLASTICFILM,50V1UFJ
C826 76092341 CERAMICDISC,2KVR470PFK
C827 76678229 ELECTROLYTIC,200V2.2UFM
C851 76092538 CERAMICCHIP,10VF1UFZ
C852 76109102 CERAMICCHIP,50VB1000PFK
C883 76125039 ELECTROLYTIC,35V4700UFM
C888 76109102 CERAMICCHIP,50VB1000PFK
C889 76073094 ELECTROLYTIC,50V1000UFM
C890 76567334 PLASTICFILM,50V0.33UFJ
CE04 76092281 CERAMICDISC,AC250VE4700PF
CE05 76092281 CERAMICDISC,AC250VE4700PF
CE07 76567474 PLASTICFILM,50V0.47UFJ
CE09 76668339 ELECTROLYTIC,35V3.3UFM
CE10 76073233 ELECTROLYTIC,200V560UFM
CE12 76567104 PLASTICFILM,50V0.1UFJ
CE13 76092555 CERAMICDISC,AC250VE1000PFM
CE14 76092555 CERAMICDISC,AC250VE1000PFM
CE15 76092337 CERAMICDISC,2KV220PFK
CE16 76073181 ELECTROLYTIC,35V56UFM
CE17 76092339 CERAMICDISC,2KV330PFK
CE18 76503253 PLASTICFILM,1250VH0.01UFH
CE23 76214471 CERAMICDISC,500VB470PFK
CE24 76285104 CERAMICCHIP,50VB0.1UFK
CE36 76092616 CERAMICCHIP,16VB0.33UFK
CE37 76666100 ELECTROLYTIC,16V10UFM3A
CE38 76073150 ELECTROLYTIC,16V56UFM3A
17

ReplacementPartsList
Location Part No. Description
CE40 76073180 ELECTROLYTIC,35V33UFM
CE41 76073139 ELECTROLYTIC,10V470UFM3A
CE42 76073137 ELECTROLYTIC,10V100UFM
CE43 76567104 PLASTICFILM,50V0.1UFJ
CE44 76092726 CERAMICCHIP,10VB2.2UFK
CE52 76092179 CERAMICCHIP,25VB0.22UFK
CE53 76092179 CERAMICCHIP,25VB0.22UFK
CE55 76073181 ELECTROLYTIC,35V56UFM
CE58 76073181 ELECTROLYTIC,35V56UFM
CE61 76073150 ELECTROLYTIC,16V56UFM3A
CE62 76666100 ELECTROLYTIC,16V10UFM3A
CE63 76092616 CERAMICCHIP,16VB0.33UFK
CE71 76073128 ELECTROLYTIC,6.3V1000UFM
CE75 76073128 ELECTROLYTIC,6.3V1000UFM
CE82 76676470 ELECTROLYTIC,100V47UFM
CE83 76073175 ELECTROLYTIC,25V1800UFM
CE84 76073178 ELECTROLYTIC,25V3300UFM
CE85 76073190 ELECTROLYTIC,35V1200UFM
CE86 76073190 ELECTROLYTIC,35V1200UFM
CE87 76669100 ELECTROLYTIC,50V10UFM
CE90 76567334 PLASTICFILM,50V0.33UFJ
CE91 76567104 PLASTICFILM,50V0.1UFJ
CE92 76794101 ELECTROLYTIC,16V100UFM
CE94 76092179 CERAMICCHIP,25VB0.22UFK
CE95
76092179
CERAMIC CHIP 25V B 0 22UF K
CE95
76092179
CERAMIC

CHIP
,
25V

B

0
.
22UF

K
CE96 76073189 ELECTROLYTIC,35V1000UFM
CN90A 23757002 CONNECTOR,12PTOPTYPE,B12BͲPHDSS(LF)
D801 23362200 DIODE,D5SB60,7009F07
D801B 23717240 SCREW,BITTB3X10SZN
D805 23357850 DIODE,ZENER,MTZJ9.1A
D806 23357893 DIODE,ZENER,MTZJ27C
D809 23357905 DIODE,ZENER,MTZJ36C
D810 23357893 DIODE,ZENER,MTZJ27C
D811 23357511 DIODE,AG01A
D812 23357852 DIODE,ZENER,MTZJ9.1C
D813 23357512 DIODE,AL01Z
D852 23357697 DIODE,1SS133
D860 23357871 DIODE,ZENER,MTZJ15B
D883 75001877 DIODE,FMENͲ220A
D883B 23717240 SCREW,BITTB3X10SZN
D884 75001877 DIODE,FMENͲ220A
D884B 23717240 SCREW,BITTB3X10SZN
D885 23357408 DIODE,FMXͲ12S(023Ͳ108)
D899 76019489 VARISTOR,V1=470V2750A/2
DE01 23362204 DIODE,D3SB60,7109F08
DE02 23357511 DIODE,AG01A
DE03 23357511 DIODE,AG01A
DE05 23357104 DIODE,1SS244
DE06 23357366 DIODE,FR105ͲB5
DE07 23357900 DIODE,ZENER,MTZJ33B
DE09 23357842 DIODE,ZENER,MTZJ6.8B
DE11 23357709 DIODE,RU1P
DE12 23357512 DIODE,AL01Z
DE13 23357512 DIODE,AL01Z
18

ReplacementPartsList
Location Part No. Description
DE14 23357512 DIODE,AL01Z
DE15 23357892 DIODE,ZENER,MTZJ27B
DE16 23357880 DIODE,ZENER,MTZJ20B
DE17 23357512 DIODE,AL01Z
DE19 23357854 DIODE,ZENER,MTZJ10B
DE51 23357842 DIODE,ZENER,MTZJ6.8B
DE52 23357703 DIODE,1SS355
DE53 23357842 DIODE,ZENER,MTZJ6.8B
DE54 23357703 DIODE,1SS355
DE55 23357748 DIODE,ZENER,MA8062ͲM
DE56 23357800 DIODE,ZENER,MA8300ͲH
DE58 23357844 DIODE,ZENER,MTZJ7.5A
DE71 23357831 DIODE,ZENER,MTZJ4.7B
DE72 23357366 DIODE,FR105ͲB5
DE73 23362197 DIODE,SCHOTTKY,RB085TͲ60
DE73B 23717240 SCREW,BITTB3X10SZN
DE75 23357408 DIODE,FMXͲ12S(023Ͳ108)
DE75B 23717240 SCREW,BITTB3X10SZN
DE77 23362205 DIODE,SCHOTTKY,RB085TͲ90
DE77B 23717240 SCREW,BITTB3X10SZN
DE90 23357866 DIODE,ZENER,MTZJ12C
DE92 23357862 DIODE,ZENER,MTZJ11B
DE93 23357862 DIODE,ZENER,MTZJ11B
DE94 23357862 DIODE,ZENER,MTZJ11B
F801 23144319 FUSE
,
CARTRIDGE5.2X20
,
125V8A
,,
F801A 23165433 FUSEHOLDER,5.2
F801B 23165433 FUSEHOLDER,5.2
F802 23144227 FUSE,CARTRIDGE5.2X20,125V5A
F889 23144715 FUSE,CARTRIDGE5.2X20,125V5A
FE01 23144380 FUSE,RADIALLEADSUBͲMINIATUR,250V3.15A
FE51 23144710 FUSE,CARTRIDGE5.2X20,125V2A
FE72 23144708 FUSE,AXIAL,125V1A
FE73 23144715 FUSE,CARTRIDGE5.2X20,125V5A
FE74 23144382 FUSE,RADIALLEADSUBͲMIN,MEF5A
FE75 23144715 FUSE,CARTRIDGE5.2X20,125V5A
GR12 76000576 CHIPJUMPER,3216TYPE
GR33 76000576 CHIPJUMPER,3216TYPE
GR52 76000445 CHIPJUMPER,1608TYPE
GR59 76000445 CHIPJUMPER,1608TYPE
GR85 76000576 CHIPJUMPER,3216TYPE
GR86 76000576 CHIPJUMPER,3216TYPE
K902 75002658 REMOCONHANDUNIT,CTͲ90259
L801 23217834 TRANSFORMER,CHOKE,TPW2078AS
L802 23217792 TRANSFORMER,CHOKE,TPW2072AS
L804 23103304 FERRITECHOKE,TEM2011AA
L806 23248386 COIL,CHOKE,TLN3481AA
L807 23248386 COIL,CHOKE,TLN3481AA
L874 23103304 FERRITECHOKE,TEM2011AA
L875 23103304 FERRITECHOKE,TEM2011AA
L876 23103304 FERRITECHOKE,TEM2011AA
L878 23103304 FERRITECHOKE,TEM2011AA
L883 23248489 COIL,CHOKE,TLN3639AH
LE11 23103304 FERRITECHOKE,TEM2011AA
LE12 23103330 FERRITECHOKE,3.5X5X2,TEM2014AH
19