Panasonic TH-42LF30ER / TH-47LF30ER Service Manual ▷ View online
Prevention of Electrostatic Discharge (ESD) to Electrostatically
Sensitive (ES) Devices
Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are
called Electrostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field-effect
transistors and semiconductor "chip" components. The following techniques should be used to help reduce the incidence of
component damage caused by electrostatic discharge (ESD).
1. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off any ESD on
your body by touching a known earth ground. Alternatively, obtain and wear a commercially available discharging ESD
wrist strap, which should be removed for potential shock reasons prior to applying power to the unit under test.
wrist strap, which should be removed for potential shock reasons prior to applying power to the unit under test.
2. After removing an electrical assembly equipped with ES devices, place the assembly on a conductive surface such as
aluminum foil, to prevent electrostatic charge build up or exposure of the assembly.
3. Use only a grounded-tip soldering iron to solder or unsolder ES devices.
4. Use only an anti-static solder removal device. Some solder removal devices not classified as "anti-static (ESD
4. Use only an anti-static solder removal device. Some solder removal devices not classified as "anti-static (ESD
protected)" can generate electrical charge sufficient to damage ES devices.
5. Do not use freon-propelled chemicals. These can generate electrical charges sufficient to damage ES devices.
6. Do not remove a replacement ES device from its protective package until immediately before you are ready to install it.
6. Do not remove a replacement ES device from its protective package until immediately before you are ready to install it.
(Most replacement ES devices are packaged with leads electrically shorted together by conductive foam, aluminum foil
or comparable conductive material).
or comparable conductive material).
7. Immediately before removing the protective material from the leads of a replacement ES device, touch the protective
material to the chassis or circuit assembly into which the device will be installed.
Caution
Be sure no power is applied to the chassis or circuit, and observe all other safety precautions.
8. Minimize bodily motions when handling unpackaged replacement ES devices. (Otherwise harmless motion such as the
brushing together of your clothes fabric or the lifting of your foot from a carpeted floor can generate static electricity
(ESD) sufficient to damage an ES device).
(ESD) sufficient to damage an ES device).
There are special components used in this equipment which are important for safety.
These parts are marked by in schematic diagrams, exploded views and replacement parts list. It is essential that
these critical parts should be replaced with manufacturer’s specified parts to prevent shock, fire, or other hazards. Do
not modify the original design without permission of manufacturer.
These parts are marked by in schematic diagrams, exploded views and replacement parts list. It is essential that
these critical parts should be replaced with manufacturer’s specified parts to prevent shock, fire, or other hazards. Do
not modify the original design without permission of manufacturer.
IMPORTANT SAFETY NOTICE
5
About lead free solder (PbF)
Note: Lead is listed as (Pb) in the periodic table of elements.
In the information below, Pb will refer to Lead solder, and PbF will refer to Lead Free Solder.
The Lead Free Solder used in our manufacturing process and discussed below is (Sn+Ag+Cu).
That is Tin (Sn), Silver (Ag) and Copper (Cu) although other types are available.
This model uses Pb Free solder in it’s manufacture due to environmental conservation issues. For service and repair work,
we’d suggest the use of Pb free solder as well, although Pb solder may be used.
PCBs manufactured using lead free solder will have the PbF within a leaf Symbol
stamped on the back of PCB.
Caution
Pb free solder has a higher melting point than standard solder. Typically the melting point is 50 ~ 70 °F (30~40°C)
higher. Please use a high temperature soldering iron and set it to 700 ± 20 °F (370 ± 10 °C).
higher. Please use a high temperature soldering iron and set it to 700 ± 20 °F (370 ± 10 °C).
Pb free solder will tend to splash when heated too high (about 1100 °F or 600 °C).
If you must use Pb solder, please completely remove all of the Pb free solder on the pins or solder area before
applying Pb solder. If this is not practical, be sure to heat the Pb free solder until it melts, before applying Pb solder.
If you must use Pb solder, please completely remove all of the Pb free solder on the pins or solder area before
applying Pb solder. If this is not practical, be sure to heat the Pb free solder until it melts, before applying Pb solder.
After applying PbF solder to double layered boards, please check the component side for excess solder which may
flow onto the opposite side. (see Fig.3)
flow onto the opposite side. (see Fig.3)
Suggested Pb free solder
There are several kinds of Pb free solder available for purchase. This product uses Sn+Ag+Cu (tin, silver, copper) solder.
However, Sn+Cu (tin, copper), Sn+Zn+Bi (tin, zinc, bismuth) solder can also be used. (see Fig.4)
However, Sn+Cu (tin, copper), Sn+Zn+Bi (tin, zinc, bismuth) solder can also be used. (see Fig.4)
Fig.3
Fig.4
6
Applicable Input Signals
*Mark:applicable input signal
Signal name
Horizontal
frequency
(kHz)
Vertical
frequency
(Hz)
RGB IN
(Dot clock (MHz)
PC IN
(Dot clock (MHz)
DVI-D IN
(Dot clock (MHz)
HDMI1
HDMI2
1
640x400@70Hz
31.46
70.07
*(25.17)
*(25.17)
*(25.17)
2
640x400@85Hz
37.86
85.08
*(31.5)
*(31.5)
*(31.5)
3
640x480@60Hz
31.43
59.88
*(25.15)
*(25.15)
*(25.15)
4
640x480@60Hz
31.47
59.94
*(25.18)
*(25.18)
*(25.18)
*
5
640x480@67Hz
35.00
66.67
*(30.24)
*(30.24)
*(30.24)
6
640x480@72Hz
37.86
72.81
*(31.5)
*(31.5)
*(31.5)
7
640x480@75Hz
37.50
75.00
*(31.5)
*(31.5)
*(31.5)
8
640x480@85Hz
43.27
85.01
*(36.0)
*(36.0)
*(36.0)
9
720x400@70Hz
31.47
70.08
*(28.32)
*(28.32)
*(28.32)
10 800x600@55Hz
34.50
55.38
*(35.33)
*(35.33)
*(35.33)
11 800x600@56Hz
35.16
56.25
*(36.0)
*(36.0)
*(36.0)
12 800x600@60Hz
37.88
60.32
*(40.0)
*(40.0)
*(40.0)
*
13 800x600@60Hz
38.00
60.51
*(40.13)
*(40.13)
*(40.13)
14 800x600@72Hz
48.08
72.19
*(50.0)
*(50.0)
*(50.0)
15 800x600@75Hz
46.88
75.00
*(49.5)
*(49.5)
*(49.5)
16 800x600@85Hz
53.67
85.06
*(56.25)
*(56.25)
*(56.25)
17 852x480@60Hz
31.47
59.94
*(33.54)
*(33.54)
*(33.24)
*
18 1,024x768@50Hz
39.55
50.00
*(51.89)
*(51.89)
*(51.89)
*
19 1,024x768@60Hz
48.36
60.00
*(65.0)
*(65.0)
*(65.0)
*
20 1,024x768@60Hz
48.50
60.02
*(64.99)
*(64.99)
*(65.18)
21 1,024x768@70Hz
56.48
70.07
*(75.0)
*(75.0)
*(75.0)
22 1,024x768@75Hz
60.24
74.93
*(80.0)
*(80.0)
*(80.0)
23 1,024x768@75Hz
60.02
75.03
*(78.75)
*(78.75)
*(78.75)
24 1,024x768@75Hz
61.01
75.70
*(80.05)
*(80.05)
*(81.0)
25 1,024x768@85Hz
68.68
85.00
*(94.5)
*(94.5)
*(94.5)
26 1,024x768@120Hz
97.55
119.99
*(115.5)
*(115.5)
27 1,066x600@60Hz
37.64
59.94
*(53.0)
*(53.0)
*(53.0)
*
28 1,152x864@60Hz
53.70
60.00
*(81.62)
*(81.62)
*(81.62)
*
29 1,152x864@75Hz
67.50
75.00
*(108.0)
*(108.0)
*(108.0)
30 1,152x900@65Hz
61.20
65.20
*(92.0)
*(92.0)
*(92.0)
31 1,152x900@66Hz
61.85
66.00
*(94.5)
*(94.5)
*(94.5)
32 1,152x900@75Hz
71.40
75.60
*(105.1)
*(105.1)
*(105.1)
33 1,280x768@60Hz
47.78
59.87
*(79.50)
*(79.50)
*(79.50)
34 1,280x800@50Hz
41.20
50.00
*(68.55)
*(68.55)
*(68.55)
35 1,280x960@60Hz
60.00
60.00
*(108.0)
*(108.0)
*(108.0)
36 1,280x960@85Hz
85.94
85.00
*(148.5)
*(148.5)
*(148.5)
37 1,280x1,024@50Hz
52.70
50.00
*(89.38)
*(89.38)
*(89.38)
*
38 1,280x1,024@60Hz
63.34
59.98
*(108.18)
*(108.18)
*(108.18)
39 1,280x1,024@60Hz
63.90
60.00
*(107.35)
*(107.35)
*(107.35)
40 1,280x1,024@60Hz
63.37
60.01
*(107.5)
*(107.5)
*(107.5)
41 1,280x1,024@60Hz
63.74
60.02
*(108.1)
*(108.1)
*(108.1)
42 1,280x1,024@60Hz
63.98
60.02
*(108.0)
*(108.0)
*(108.0)
*
43 1,280x1,024@60Hz
63.79
60.18
*(108.19)
*(108.19)
*(108.19)
44 1,280x1,024@66Hz
70.66
66.47
*(119.84)
*(119.84)
*(119.84)
45 1,280x1,024@75Hz
79.98
75.02
*(135.0)
*(135.0)
*(135.0)
46 1,280x1,024@76Hz
81.13
76.11
*(135.0)
*(135.0)
*(135.0)
47 1,280x1,024@85Hz
91.15
85.02
*(157.5)
*(157.5)
48 1,360x768@60Hz
47.71
60.02
*(85.5)
*(85.5)
*(85.5)
49 1,366x768@50Hz
39.55
50.00
*(69.92)
*(69.92)
*(69.92)
50 1,366x768@60Hz
48.36
60.00
*(86.71)
*(86.71)
*(87.44)
51 1,400x1,050@60Hz
65.12
59.91
*(121.38)
*(121.38)
*(122.43)
52 1,400x1,050@60Hz
65.32
59.98
*(121.75)
*(121.75)
*(121.75)
*
53 1,400x1,050@60Hz
65.35
60.12
*(121.81)
*(121.81)
*(121.85)
54 1,400x1,050@75Hz
82.28
74.87
*(156.0)
*(156.0)
*(156.0)
55 1,600x1,200@60Hz
75.00
60.00
*(162.0)
*(162.0)
*(162.0)
*
56 1,920x1,080@60Hz
67.50
60.00
*(148.5)
*(148.5)
*(148.5)
*
57 1,920x1,200@60Hz
74.04
59.95
*(154.0)
*(154.0)
58 Macintosh 13‘‘ (640 x 480)
35.00
66.67
*(30.24)
*(30.24)
*(30.24)
59 MacintoshLC13‘‘ (640 x 480)
34.97
66.60
*(31.33)
*(31.33)
*(31.33)
60 Macintosh 16‘‘ (832 x 624)
49.72
74.55
*(57.28)
*(57.28)
*(57.28)
61 Macintosh 19‘‘ (1,024 x 768)
60.24
75.08
*(80.0)
*(80.0)
*(80.0)
62 Macintosh 21‘‘ (1,152 x 870)
68.68
75.06
*(100.0)
*(100.0)
*(100.0)
63 Macintosh II (1,280 x 1,024)
80.00
75.00
*(134.4)
*(134.4)
*(135.2)
PC signals
7
*Mark:applicable input signal
*
1: Based on SMPTE 274M standad.
*
2: Based on SMPTE RP211 standad.
Signal name
Horizontal
frequency
(kHz)
Vertical
frequency
(Hz)
Component IN
(Dot clock (MHz)
DVI_IN
(Dot clock (MHz)
HDMI1
HDMI2
1
525(480)/60i
15.73
59.94
*(13.5)
*(27.0)
*
2
525(480)/60p
31.47
59.94
*(27.0)
*(27.0)
*
3
625(575)/50i
15.63
50.00
*(13.5)
4
625(576)/50i
15.63
50.00
*(27.0)
*
5 625(575)/50p
31.25 50.00
*(27.0)
6 625(576)/50p
31.25 50.00
*(27.0)
*
7
750(720)/60p
45.00
60.00
*(74.25)
*(74.25)
*
8
750(720)/50p
37.50
50.00
*(74.25)
*(74.25)
*
9
1.125(1.080)/60p 67.50
60.00
*(148.5)
*
1
*(148.5)
*
10 1.125(1.080)/60i 33.75
60.00
*(74.25)
*
1
*(74.25)
*
11 1.125(1.080)/50p 56.25
50.00
*(148.5)
*
1
*(148.5)
*
12 1.125(1.080)/50i 28.13
50.00
*(74.25)
*
1
*(74.25)
*
13 1.125(1.080)/24sF 27.00
48.00
*(74.25)
*
2
14 1.125(1.080)/30p 33.75
30.00
*(74.25)
*
1
*(74.25)
*
15 1.125(1.080)/25p 28.13
25.00
*(74.25)
*
1
*(74.25)
*
16 1.125(1.080)/24p 27.00
24.00
*(74.25)
*
1
*(74.25)
*
Signal name
Horizontal
frequency
(kHz)
Vertical
frequency
(Hz)
Video in
1 NTSC
15.73 59.94
*
2 PAL
15.63 50.00
*
3 PAL60
15.73 59.94
*
4 SECAM
15.63 50.00
*
5 NTSC
4.43
15.73 59.94
*
6 PAL
N
15.63 50.00
*
7 PAL
M
15.73 59.94
*
Component signals
Video signals (VIDEO)
8
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