TV32LB1000 1, Serwisowe

[ Pobierz całość w formacie PDF ]
TV32LB1000
SERVICE MANUAL
LCD-TV
ORIGINAL
CHASSIS CODE A
Design and specifications are subject to change without notice.
 SERVICING NOTICES ON CHECKING
1. KEEP THE NOTICES
6. PERFORM A SAFETY CHECK AFTER
SERVICING
As for the places which need special attentions,
they are indicated with the labels or seals on the
Confirm that the screws, parts and wiring which
cabinet, chassis and parts. Make sure to keep the
were removed in order to service are put in the
indications and notices in the operation manual.
original positions, or whether there are the
portions which are deteriorated around the
2. AVOID AN ELECTRIC SHOCK
serviced places serviced or not. Check the
insulation between the antenna terminal or
There is a high voltage part inside. Avoid an
external metal and the AC cord plug blades.
electric shock while the electric current is
And be sure the safety of that.
flowing.
(INSULATION CHECK PROCEDURE)
3. USE THE DESIGNATED PARTS
1. Unplug the plug from the AC outlet.
The parts in this equipment have the specific
2. Remove the antenna terminal on TV and turn
characters of incombustibility and withstand
on the TV.
voltage for safety. Therefore, the part which is
3. Insulation resistance between the cord plug
replaced should be used the part which has
terminals and the eternal exposure metal
the same character.
[Note 2]
should be more than 1M ohm by
Especially as to the important parts for safety
using the 500V insulation resistance meter
which is indicated in the circuit diagram or the
[Note 1].
table of parts as a ! mark, the designated
4. If the insulation resistance is less than 1M
parts must be used.
ohm, the inspection repair should be
required.
required.
4. BE CAREFUL WITH THE
LCD PANEL
[Note 1]
If you have not the 500V insulation
Avoid a shock to the panel while servicing.
resistance meter, use a Tester.
Take enough care to deal with it.
[Note 2]
5. PUT PARTS AND WIRES IN THE
External exposure metal: Antenna terminal
ORIGINAL POSITION AFTER
Headphone jack
ASSEMBLING OR WIRING
There are parts which use the insulation
material such as a tube or tape for safety, or
which are assembled in the condition that
these do not contact with the printed board.
The inside wiring is designed not to get closer
to the pyrogenic parts and high voltage parts.
Therefore, put these parts in the original
positions.
HOW TO ORDER PARTS
Please include the following informations when you order parts. (Particularly the CHASSIS CODE.)
1. MODEL NUMBER and CHASSIS CODE
YOU can find it in the back of your unit.
2. PART NO. and DESCRIPTION
You can find it in your SERVICE MANUAL.
IMPORTANT
When you exchange IC and Transistor with a heat sink, apply silicon grease (YG6260M) on the contact
section of the heat sink. Before applying new silicon grease, remove all the old silicon grease.
(Old grease may cause damage to the IC and Transistor).
A1-1
 ABOUT LEAD FREE SOLDER (PbF)
Distinction of PbF PCB:
PCBs (manufactured) using lead free solder will have a PbF printing on the PCB.
(Please refer to figures.)
Caution:
• Pb free solder has a higher melting point than standard solder;
Typically the melting point is 86
o
F~104
o
F(30
o
C~40
o
C) higher.
Please use a soldering iron with temperature control and adjust it to 650
o
F ± 20
o
F (350
o
C ± 10
o
C).
In case of using high temperature soldering iron, please be careful not to heat too long.

Pb free solder will tend to splash when heated too high (about 1100
o
F/ 600
o
C).

Pb free solder will tend to splash when heated too high (about 1100 F/ 600 C).
• All products with the printed circuit board with PbF printing must be serviced with lead free solder.
When soldering or unsoldering, completely remove all of the solder from the pins or solder area,
and be sure to heat the soldering points with the lead free solder until it melts sufficiently.
Recommendations
Recommended lead free solder composition is Sn-3.0Ag-0.5Cu.
A1-2
HOTEL MODE FUNCTION
To set the Hotel mode, please follow the steps below.
Press the MENU---> 1111 button on the remote control.
1.
2.
Press the DOWN button on the remote control,
select the Hotel Mode. Then press the ENTER button.
3.
The Hotel mode setting menu will appear.
Using the UP/DOWN button on the remote control,
select the desired mode. Then press the ENTER button.
Using the LEFT/RIGHT button on the remote control,
4.
5.
set the mode to desired setting.
The Hotel mode has now been set up.
6.
To reset the Hotel mode, please follow the steps below.
1.
Press the MENU---> 1111 button on the remote control.
2.
Press the DOWN button on the remote control,
select the Hotel Mode. Then press the ENTER button.
3.
The Hotel mode setting menu will appear.
4.
Using the UP/DOWN button on the remote control, select the RESET.
5.
Using the LEFT/RIGHT button on the remote control, please select "OK".
Then press the ENTER button.
6.
The setting items has now been returned to initial value.
Setting item
Setting value
Initial value
FUNCTION
Setting item
Setting value
Initial value
FUNCTION
Maximum volume
0~100
100
Setting of the maximum volume value.
Panel button
Effective/invalid setting of main key operation. (*Note 1)
RESPOND/
NO RESPOND
RESPOND
Effective/invalid setting of Menu key operation of set and remote control.
(*Note 1)
Menu button
TV/AV/
COMPONENT/
Input mode start
OFF
Setting of input source at power supply On. (*Note 2)
HDMI/PC/DVD/
OFF
Channel Number
All Channel
1
Channel Number tuned when starting this product can be set.
Reset
Various settings of the Hotel mode function return initial State.
Note 1) Even if setting it to "No Respond", the service mode function are effective.
Note 2) If setting it to "OFF", it start up in same input source when you turn off the power before.
A1-3
 TABLE OF CONTENTS
SERVICING NOTICES ON CHECKING
………………………………………………………………………………..
A1-1
HOW TO ORDER PARTS
……………………………………………………………………………………………….
A1-1
IMPORTANT
………………………………………………………………………………………………………………
A1-1
ABOUT LEAD FREE SOLDER (PbF)
………………………………………………………………………………….
A1-2
HOTEL MODE FUNCTION
………………………………………………………………………………………………
A1-3
TABLE OF CONTENTS
………………………………………………………………………………………………….
A2-1
GENERAL SPECIFICATIONS
…………………………………………………………………………………………..
A3-1~A3-6
DISASSEMBLY INSTRUCTIONS
1. REMOVAL OF MECHANICAL PARTS AND P. C. BOARDS…………………………………………………..
B1-1, B1-2
2. REMOVAL AND INSTALLATION OF FLAT PACKAGE IC…………………………………………………….
B2-1, B2-2
SERVICE MODE LIST
……………………………………………………………………………………………………
C-1
D-1
PARTS LOCATION GUIDE (WIRING CONNECTION)
……………………………………………………………….
BLOCK DIAGRAMS
21PIN…………………………………………………………………………………………………………………..
E-1, E-2
REGULATOR1/2……………………………………………………………………………………………………….
E-3, E-4
SCALER_AV/SCALER/FLASH/PANEL_INTERFACE/DDR/TUNER/HDMI/COMMON INTERFACE
………………………..
E-5, E-6
AV/DVD_INTERFACE/SOUND AMP/AUDIO DAC/JACK/AUDIO SWITCH……………………………………..
E-7, E-8
POWER………………………………………………………………………………………………………………..
E-9, E-10
PRINTED CIRCUIT BOARDS
MAIN……………………………………………………………………………………………………………………
F-1~F-4
POWER/REMOCON/LED…………………………………………………………………………………………….
F-5, F-6
SCHEMATIC DIAGRAMS
21PIN…………………………………………………………………………………………………………………..
G-1, G-2
REGULATOR1…………………………………………………………………………………………………………
G-3, G-4
REGULATOR2…………………………………………………………………………………………………………
G-5, G-6
AV/DVD_INTERFACE………………………………………………………………………………………………..
G-7, G-8
SOUND AMP/AUDIO DAC……………………………………………………………………………………………
G-9, G-10
JACK…………………………………………………………………………………………………………………..
G-11, G-12
HDMI…………………………………………………………………………………………………………………..
G-13, G-14
SCALER_AV…………………………………………………………………………………………………………..
G-15, G-16
FLASH………………………………………………………………………………………………………………….
G-17, G-18
SCALER_VCC…………………………………………………………………………………………………………
G-19, G-20
PANEL_INTERFACE………………………………………………………………………………………………….
G-21, G-22
MICON…………………………………………………………………………………………………………………
G-23, G-24
DDR2…………………………………………………………………………………………………………………..
G-25, G-26
TUNER…………………………………………………………………………………………………………………
G-27, G-28
COMMON INTERFACE……………………………………………………………………………………………….
G-29, G-30
AUDIO SWITCH………………………………………………………………………………………………………
G-31, G-32
POWER………………………………………………………………………………………………………………..
G-33, G-34
REMOCON/LED……………………………………………………………………………………………………….
G-35, G-36
G-37, G-38
INTERCONNECTION DIAGRAM
………………………………………………………………………………………..
WAVEFORMS
…………………………………………………………………………………………………………….
H-1, H-2
MECHANICAL EXPLODED VIEWS
…………………………………………………………………………………….
I-1, I-2
MECHANICAL REPLACEMENT PARTS LIST
…………………………………………………………………………
J1-1
ELECTRICAL REPLACEMENT PARTS LIST
………………………………………………………………………….
J2-1~J2-3
A2-1
[ Pobierz całość w formacie PDF ]