LC-32BT8EA - Sharp TV Service Manual (repair manual)

lc-32bt8ea service manual
Model
LC-32BT8EA
Pages
127
Size
34.43 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
lc-32bt8ea.pdf
Date

Read Sharp LC-32BT8EA Service Manual online

1
 LC-26GA5E
 LC-32GA5E
LC-32GD8E/RU  
LC-32BT8E/RU
LC-37GD8E/RU
LC-37BT8E/RU
LC-32/37GD8E/RU  
LC-32/37BT8E/RU
MODELS     
                       
LC-32GD8
EE/EF/EI/EK/RU
LC-32BT8
EE/EF/EI/EK/RU
LC-37GD8
EE/EF/EI/EK/RU
LC-37BT8
EE/EF/EI/EK/RU
                Issued: 15
th
 June 2006
SE
00LC32
GD800
ELECTRICAL  SPECIFICATIONS  ..............................................................................  3
IMPORTANT  SERVICE  SAFETY  PRECAUTIONS......................................................  4
OPERATION  MANUAL  ...............................................................................................  6
DIMENSIONS  .........................................................................................................  10
REMOVING  OF  MAJOR  PARTS    .....................................................................................  11
SERVICE  ADJUSTMENTS  .....................................................................................  15
SOFTWARE  UPDATING  ....................................................................................  23
TROUBLESHOOTING  TABLE  ..................................................................................  41
MAJOR  ICs  INFORMATION  .....................................................................................  58
SOURCE  OF  DOCUMENTATION  ................................................................................  98
CHASSIS  LAYOUT  ..................................................................................................  99
OVERALL  WIRING  DIAGRAMS  ................................................................................  105
BLOCK  DIAGRAM  ......................................................................................................  106
SCHEMATIC  DIAGRAMS  .........................................................................................  108
PRINTED  WIRING  BOARDS  .....................................................................................  130
REPLACEMENT  PARTS  LIST  ..................................................................................  149
PACKING  OF  THE  SET  ...........................................................................................  168
SERVICE MANUAL
 LCD 
COLOUR TELEVISION
In  the  interests  of  user  safety  (required  by  safety 
regulations in some countries) the set should be re-
stored to its original condition and only parts identical 
to those specifi ed should be used.
160mm
125mm
100mm
80mm
63mm
50mm
40mm
31.5mm
25mm
20mm
A-data-1
sharp.
Corporate Trademark
 PAL 
B/G, I 
/ SECAM
 B/G, D/K, L/L’ 
SYSTEM COLOUR TELEVISION
SHARP  CORPORATION
CONTENTS
2
 LC-26GA5E
 LC-32GA5E
LC-32/37GD8E/RU  
LC-32/37BT8E/RU
Use this page to keep any special servicing information as Technical Report (Bulletin), Technical Information, etc.
If only part  number changes are required, just change part number directly the part number in the Parts Listing Sec-
tion.
SERVICE MANUAL UPDATE LOG SHEET
Part No.
Technical Report  No.
Technical Bulletin No.
Cause / Solution
Page No.
Application 
Data /Serial No.
3
 LC-26GA5E
 LC-32GA5E
LC-32GD8E/RU  
LC-32BT8E/RU
LC-37GD8E/RU
LC-37BT8E/RU
LC-32/37GD8E/RU  
LC-32/37BT8E/RU
35
Item
Video Colour System
PAL/SECAM/NTSC 3.58/NTSC 4.43/PAL 60
TV
Function
CCIR (B/G, I, D/K, L, L’)
TV-Standard
Specifications
LCD panel
Number of dots
3,147,264 dots (1366 g 768 g 3 dots)
• 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 values in individual units.
NOTE
• Refer to inside back cover for dimensional drawings.
VHF/UHF
E2–E69ch, F2–F10ch, I21–I69ch, IR A–IR Jch, (Digital: E5–E69ch)
CATV
Hyper-band, S1–S41ch
TV-Tuning System
Auto Preset 99 ch, Auto Label, Auto Sort
STEREO/BILINGUAL
NICAM/A2
Receiving
Channel
Brightness
450 cd/m
2
Backlight life
60,000 hours (at Backlight Standard position)
Viewing angles
H : 176°  V : 176°
Audio amplifier
10W g 2
Speaker
130 mm g 60 mm
Terminals
9 pin MINI-DIN male connector
EXT 2
EXT 3
S-VIDEO (Y/C input), RCA pin (AV input)
Rear
RS-232C
UHF/VHF 75q Din type (Analogue & Digital)
SCART (AV input/output, Y/C input, RGB input, AV Link)
Antenna input
EXT 5
HDMI, Ø 3.5 mm jack (Audio input)
OSD language
English/German/French/Italian/Spanish/Dutch/Swedish/Portuguese/Finnish/Turkish/Greek/
Russian/Polish
Power Requirement
AC 220–240 V, 50 Hz
Power Consumption
Weight
Appendix
32o LCD COLOUR TV,
Model: LC-32GD8, LC-32BT8
32o Advanced Super View &
BLACK TFT LCD
37o LCD COLOUR TV,
Model: LC-37GD8, LC-37BT8
37o Advanced Super View &
BLACK TFT LCD
17 kg (Display only),
19 kg (Display with stand)
20.5 kg (Display only),
23 kg (Display with stand)
160 W (0.9 W Standby)
(Method IEC60107)
168 W (0.9 W Standby)
(Method IEC60107)
OUTPUT
RCA pin  (Audio)
Headphones
Ø 3.5 mm jack (Audio output)
EXT 1
SCART (AV input, Y/C input, RGB input, TV output)
EXT 4
Ø 3.5 mm jack (Audio input), 15 pin mini D-sub (PC/Component)
C. I. (Common Interface) EN50221, R206001
Digital
DVB-T (2K/8K OFDM)
Analogue
The listed optional accessories are available for the LCD
colour TV. Please purchase them at your nearest shop.
• Additional optional accessories may be available in near
future.  When  purchasing,  please  read  the  newest
catalogue for compatibility and check the availability.
No.
Part name
Part number
Wall mount bracket
(LC-32GD8E, LC-32BT8E,
LC-37GD8E, LC-37BT8E)
1
AN-37AG2
9 pin D-sub/MINI-DIN
conversion cable
2
AN-A1RS
Optional accessories
Operating temperature
 0°C to e40°C
LC-32GD8E_GB_f
06.5.1, 0:11 PM
35
136 W
ELECTRICAL SPECIFICATIONS
Cautions regarding use in high and low temperature environments
•When the unit is used in a low temperature space (e.g. room, offi ce), 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
 LC-26GA5E
 LC-32GA5E
LC-32/37GD8E/RU  
LC-32/37BT8E/RU
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 identifi ed in this manual; electrical components 
having such features are identifi ed 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, fi re or other hazards.
2
LC-20B5E
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 " å"
IMPORTANT SERVICE SAFETY PRECAUTION
Ë
Service work should be performed only by qualified service technicians who are
thoroughly familiar with all safety checks and the servicing guidelines which follow:
and shaded areas in the
 Replacement Parts Lists and
Schematic Diagrams.
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.
WARNING
1. For continued safety, no modification of any circuit
should be attempted.
2. Disconnect AC power before servicing.
TO EXPOSED
METAL PARTS
CONNECT TO
KNOWN EARTH
GROUND
• Use an AC voltmeter having with 5000 ohm per volt, or
higher, sensitivity or measure the AC voltage drop
across the resistor.
• 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.
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 110~240 volt AC outlet,
and connect the DC power cable into the receiver's
DC jack. (Do not use an isolation transformer for this
test).
• Using two clip leads, connect a 50k 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.
CAUTION:  FOR  CONTINUED  PROTECTION
AGAINST A RISK OF FIRE REPLACE ONLY WITH
SAME TYPE F3701 (2A, 250V), F3702 (1.25A, 250V),
F6700 (1.25A, 250V), F6701 (1.25A, 250V), F6702
(1.25A, 250V), F6703 (1.25A, 250V) AND F6704
(1.25A, 250V) FUSE.
DVM
AC SCALE
1.5k ohm
10W
0.15 µF
TEST PROBE
  
CAUTION: FOR CONTINUED PROTECTION AGAINST A RISK OF
  FIRE REPLACE ONLY WITH SAME TYPE
  F701  (4A / 250 V)
IMPORTANT SERVICE SAFETY PRECAUTION
Service work should be performed only by qualifi ed service technicians who are thoroughly familiar with all 
safety checks and the servicing guidelines which follow:
WARNING
1. For continued safety, no modifi cation of any circuit should be attempted.
2. Disconnect AC power before servicing.
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 1.05V peak (this corresponds to 0.7 mA. peak AC.) or more is excessive and indicates a potential shock 
hazard which must be corrected before returning the monitor to the owner.
!
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Download Sharp LC-32BT8EA Service Manual (Repair Manual)

Here you can read online and download Sharp LC-32BT8EA Service Manual in PDF. LC-32BT8EA service manual will guide through the process and help you recover, restore, fix, disassemble and repair Sharp LC-32BT8EA LCD. Information contained in service manuals typically includes schematics / circuit diagrams, wiring diagrams, block diagrams, printed wiring boards, exploded views, parts list, disassembly / assembly, pcb.