Polaroid TLA-04641C, 4641-TLXB service manual
2007 LCD Models – North America
TLA-04641C, 4641-TLXB
SERVICE MANUAL
Bezel covers vary by model
20070605
Important Service and Safety Information
Prior to using this service manual, please ensure that you have carefully
followed all the procedures outlined in the user's manual for this product.
(1) Read all of these instructions.
(2) Save these instructions.
(3) Follow all warnings and instructions marked on the product.
(4) Unplug this product from the wall outlet before cleaning. Do not use liquid cleaners or aerosol cleaners; use a
damp cloth for cleaning.
(5) Do not use this product near water.
(6) Do not place this product on an unstable cart, stand or table. The product may fall, causing serious damage to the
product.
(7) Slots and openings in the cabinet and the back or bottom are provided for ventilation, to ensure reliable operation
of the product and to protect it from overheating, those openings must not be blocked or covered. The openings
should never be blocked by placing the product on a bed, sofa, rug, or other similar surface. This product should
not be placed in a built-in installation unless proper ventilation is provided.
(8) This product should be operated from the type of power source indicated on the marketing label. If you are not
sure of the type of power available, consult your dealer or local power company.
(9) This product is equipped with a 3-wire grounding type plug, a plug having a third (grounding) pin. This plug will
only fit into a grounding-type power outlet. This is a safety feature, if you are unable to insert the plug into the
outlet, contact your electrician to replace your obsolete outlet. Do not ignore the purpose of the grounding-type
plug.
(10) Do not allow anything to rest on the power cord. Do not locate this product where people will walk on the cord.
(11) If an extension cord is used with this product, make sure that the total of the ampere ratings on the product
plugged into the extension cord does not exceed 15 ampere.
(12) Never push objects of any kind into this product through cabinet slots as they may touch dangerous voltage points
or short out parts that could result in a risk of fire or electric shock. Never spill liquid of any kind on the product.
(13) Do not attempt to service this product yourself, as opening or removing covers may expose you to dangerous
voltage points or other risks. Refer all servicing to service personnel.
(14) Unplug this product from the wall outlet and refer servicing to qualified service personnel under the following
conditions: (0)
a.
When the power cord or plug is damaged or frayed.
b.
If liquid has been spilled into the product.
c.
If the product has been exposed to rain or water.
d.
If the product does not operate normally, when the operating instructions are followed. Adjust only
those controls that are covered by the operating instructions since improper adjustment of other
controls may result in damage and will often require extensive work by a qualified technician to
restore the product to normal operation.
e.
If the product has been dropped or the cabinet has been damaged.
f.
If the product exhibits a distinct change in performance, indicating a need for service. .
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Important Service and Safety Information
Service work should be performed only by qualified service technicians familiar with all safety
checks and these service guidelines:
ELECTRIC SHOCK HAZARD
Always disconnect AC power before servicing!
Never modify any circuit!
Never insert any objects into the holes in the TV case!
ELECTROSTATIC DISCHARGE (ESD)
Components inside an LCD or plasma TV are sensitive to static electricity. Before servicing the TV, follow these
guidelines:
• Avoid static-causing surfaces such as carpeted floors, plastic, and packing foam.
• Remove replacement components from their antistatic bags only when you are ready to use them. Do
not lay components on the outside of antistatic bags because only the inside of the bags provide
electrostatic protection.
• Always hold components by their edges. Avoid touching the edge connectors. Never slide components
over any surface.
• Wear a grounding wrist strap (available at most electronics stores) and attach it to a bare metal part of
your workbench or other grounded connection.
• Touch a bare metal surface on your workbench or other grounded object before touching any
components.
NOTICE ABOUT REPLACEMENT PARTS
Many electrical and mechanical parts within LCD or plasma televisions are chosen for their
specific safety characteristics within the overall system. Replacing individual parts with
components rated for higher voltage or wattage can be dangerous!
Replacement parts must always be identical to those originally used in the television. Unauthorized substitute
parts may result in fire, electric shock, or other hazards.
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Important Service and Safety Information
PRECAUTIONS FOR USING LEAD-FREE SOLDER
Components within this television use lead-free solder (Sn-Ag-Cu). Whenever soldering, look at the markings
on boards and components within the television to determine the correct solder type according to the table
below.
5 LEAD-FREE (Pb-Free) CATEGORIES
The following categories are meant to describe the Pb-free 2nd level interconnect terminal finish, component
material, and/or the solder paste/solder used in board assembly:
e1 - SnAgCu (shall not be included in category e2)
e2 - Sn alloys with no Bi or Zn excluding SnAgCu
e3 - Sn
e4 - Precious metal (e.g., Ag, Au, NiPd, NiPdAu) (no Sn)
e5 - SnZn, SnZnx (no Bi)
e6 - contains Bi
e7 - low temperature solder (≤ 150 °C) containing Indium (no Bi)
e0, e8, e9 symbols are unassigned at this time.
When repairing components soldered with lead-free solder, ONLY use lead-free solder that matches the
symbol on the component. Using conventional lead solder may lead to damage or a short, which could result
in fire, electric shock, or other hazards.
Because the melting point of lead-free solder is higher than conventional lead solder, observe the following
guidelines when soldering with lead-free solder:
(1) Always use a dedicated soldering bit for different types of solder. If a different type of solder comes in contact with
a lead-free solder bit, subsequent solder joints will no longer be lead free. Always clean the soldering bit after
every use.
(2) Keep the soldering bit in contact with the just long enough to confirm a good solder joint. Leaving the bit in contact
with parts for an extended period may damage the components.
(3) Because lead-free solder contains a higher concentration of tin, the tip of the soldering bit may be easily corroded
or damaged. Do not leave the bit powered on for extended periods. When the tip of the soldering bit is blackened
during use, clean the bit with steel wool or fine sandpaper. (0)
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Table of Contents
1. Specifications ................................................................................................................................... 6
2. Operation......................................................................................................................................... 8
3. Troubleshooting / Flow Charts......................................................................................................... 14
Factory Mode Procedure........................................................................................................... 14
4. Polaroid Display Cell Defect Specification ......................................................................................... 18
5. Before Returning This Product to the User ....................................................................................... 19
6. Disassembly Procedure ................................................................................................................... 20
Stand and Control Box Removal................................................................................................ 21
Rear Cabinet Cover, LCD Panel and Front Bezel ......................................................................... 23
IR Board Removal and Replacement ......................................................................................... 28
Front/Side Control Buttons Removal and Replacement ............................................................... 29
7. Spare Parts Lists............................................................................................................................. 30
8. Exploded View Diagram .................................................................................................................. 31
9. Block Diagram................................................................................................................................32
10. Schematics..................................................................................................................................... 33
11. PCB Layout Diagrams ..................................................................................................................... 42
Model Specifications are located in User Manual. Go to polaroid.com to obtain User Manual.
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Format
Level/Impedance
TMDS Mode
Frequency
Maximum Pixel Clock
DDC 1/2B
Connector
Format
Level/Impedance
DDC 1/2B
Sync
Frequency
Maximum Pixel Clock
Connector
1. Specifications
HDMI
DVI 1.0
0.5~3.0Vp-p/100 Ohm (Differential),50 Ohm (Single ending)
Single Link
Fh = 31~60 kHz
Fv = 56~76 Hz
135 MHz
Compliant with Revision 1.0
HDMI x 1
Analog HD15 PC Signal (RGB)
R, G, B Analog
0.7Vp-p / 75Ω
Compliant with Revision 1.0
H/V separate
3V TTL level / 1kΩ
Fh = 31~60 kHz
Fv = 56~76 Hz
135 Mhz
Mini D-Sub 15 pin (female) x 1
Video (Composite) CVBS Signal
Format
Level / Impedance
Format
Level / Impedance Y: 1.0Vp-p / 75Ω
Format
Level / Impedance Y: 1.0Vp-p / 75Ω
Power Source
Sound Output 10W X2, 8 Ohm.
NTSC, 4.43NTSC, PAL_M, PAL(B,G,H,D,N), SECAM
1.0Vp-p / 75Ω
S-Video (Y/C) Signal
Y, C
C: ± 286 mV/ 75Ω
Analog HD15 Video Signal (YPbPr/YCbCr)
Y, Pb, Pr or Y, Cb, Cr
Pb/Cb, Pr/Cr: 0.7 ± 0.035Vp-p / 75Ω
AC100 – 240 V, 60/50 Hz
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RGB PC Timing
STANDARD RESOLUTION
VGA 640x480 60 31.47 25.16
VGA 640x480 75 37.5 31.5
SVGA 800x600 60 37.88 40
SVGA 800x600 75 46.9 49.5
XGA 1024x768 60 48.36 65.0
XGA 1024x768 75 60.02 78.75
SXGA 1280x1024 60 64 108
SXGA 1280x1024 75 80 135
MAC 640x480 67 35 30.24
Non-VESA 720x400 70 31.5 28
Video & S-Video AV Timing
STANDARD RESOLUTION
NTSC 525 60 15.734 12.65
V FREQ
Hz
V FREQ
Hz
H FREQ
kHz
H FREQ
kHz
CLK
MHz
CLK
MHz
PAL(B,G,H,D,I) 625 50 15.625 14.50
SECAM 625 50 15.625 14.50
4.43NTSC 525 60 15.734 12.65
PAL-M 525 60 15.734 12.65
PAL-N 625 50 15.625 14.50
HDTV/Component AV Timing
SDTV 525i 720x525 60 15.735 27
SDTV 625i 720x625 50 15.625 27
SDTV 480p 720x480 60 31.5 27
HDTV 720p 1280x720 60 50.0 74.2
HDTV 1080i 1920x1080 60 33.7 74.2
HDMI Timing
STANDARD RESOLUTION
ATSC, 480i 720x480 60 15.7 27
ATSC, 480p 720x480 60 31.5 27
ATSC, 1080i 1920x1080 60 33.7 74.2
V FREQ
Hz
H FREQ
kHz
CLK
MHz
ATSC, 720p 1280x720 60 45.0 74.2
ATSC, 576i 720x576 50 15.6 27
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2. Operation
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Remote Control
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The operation of each OSD control is described in the following table:
Menu Options Sub-Options Function and Description
VIDEO
AUDIO
Picture Mode
Vivid →Hi-Bright
→Cinema
→Sport→User.
Contrast 0…100 (75) Fine tune the contrast.
Brightness 0…100 (50) Fine tune the brightness.
Saturation 0…100 (50) Fine tune the contrast.
Hue -30…+30 (0) Fine tune the contrast.
Sharpness 0…7 (4) Fine tune the contrast.
Color Temperature
Cool
Middle
Warm
User Red/Green/Blue: -19…+19
Noise Reduction Off / Low / Strong /
Medium
VGA
Auto Adjust Press the OK button to automatically
H. Position Adjusts the position of the picture left
V. Position Adjusts the position of the picture up
CLOCK Controls the width of the picture based
Phase Controls the signal phase. It can
Bass 0…100 (50) Fine tune the bass value.
Treble 0…100 (50) Fine tune the treble value.
Balance -50…+50 (0) Fine tune the balance value.
Sound Effect
Surround
Live
Dance
Techno
Classic
Soft
Rock
POP
Off Close this function.
MTS
Mono
Stereo
Sap
SPDIF Type PCM, OFF, Dolby
Digital
Audio Language English / Spanish /
French
Speaker Allows the selection of turning the TV
Press repeatedly for different picture
modes: Vivid →Hi-Bright →Cinema→Sport
→User.
Set the color temperature type.
Select to reduce the noise level of
connected equipment: Off / Low /
Strong / Medium.
adjust the display settings to optimize
the performance based on the VGA
mode.
and right in the window.
and down in the window.
on the VGA mode.
improve the focus clarity and image
stability based on the VGA mode.
Select the preset effect mode to match
your music type and achieve stunning
effects.
Set the sound type, which is only
available when input source is TV.
Allows the selection of the digital
sound format: PCM / OFF / Dolby
Digital.
Allows the selection of the audio
language: English / Spanish / French.
speakers on or off.
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TV
Channel Scan Auto search
channels.
Cable Tuner Mode
Air
Auto-search channels and put the
programs into memory.
Select the tuner mode.
Cable_STD/HRC/IRC Auto detect
SETUP
Channel Skip Set the channel that
you want to skip.
Time Zone Eastern Time,
Indiana, Central
Time, Mountain
Time, Arizona, Pacific
Time, Alaska and
Hawaii
OSD Language English / Spanish /
French
Closed Caption
Parental
Gamma Allows for the adjustment of the
Reset Default Restores factory settings.
Analog Closed
Caption
Digital Closed
Caption
Caption Style Customize the settings for the digital
Input Password Enter a 4-digit pin code. The default
Channel Lock Set the channel that you want to lock.
Video Lock Set the input source that you want to
Change password Input the old password first, and then
If a channel is set to SKIP, when
scanning up/down channels the
selected channel will be skipped.
Set time zone.
Set language.
Select one of the basic analog closed
caption options: OFF / CC1 / CC2 /
CC3 / CC4
Select one of the digital closed caption
options: Service1 / Service2 / Service 3
/ Service4 / Service5 / Service6 / OFF
closed caption option selected.
pin code is “0000”
lock.
input your new password.
display’s gamma correction. It fine
tunes both brightness and the red /
green / blue ratios: On / Off / Middle.
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