Panasonic TH-50PF20E User manual

Order Number PCZ1004048CE
Service Manual
High Definition Plasma Display
Model No. TH-50PF20E
TH-50PF20ER
GPF1 D Chassis
A WARNING
This service information is designed for experienced repair technicians only and is not designed for use by the general public.
It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.
Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to service
or repair the product or products dealt with in this service information by anyone else could result in serious injury or death.
IMPORTA T SAFETY OTICE
There are special components used in this equipment which are important for safety. These parts are marked by A in the Schematic
Diagrams, Circuit Board 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.
TABLE OF CONTENTS PAGE PAGE
1 Safety Precautions ------------------------------------- --- 37. . No Picture ------------------------------------------- --------- 19
1.1. General Guidelines --------------------------------------- --- 7.4. Local screen failure ------------------------------ --------- 20
1.2. Touch-Current Check ------------------------------------ --- 8 Service Fixture & Tools ------------------------------- --------- 21
2 Warning------------------------------------------------------------------ 48.1. SC jig-------------------------------------------------- --------- 21
2.1. Prevention of Electrostatic Discharge (ESD) Disassembly and Assembly Instructions --------------- 22
to Electrostatically Sensitive (ES) Devices -------
— 49.1. Removal of Rear Cover
------------------- --------- 22
2.2. About lead free solder (PbF) -------------------------- --- 5 9.2. Removal of Slot Block--------------------- --------- 22
3 Service Navigation ------------------------------------- --- 69. . Removal of DS-Board
--------------------------- --------- 22
.1. Service Hint ---------------------------------------------------- 6 9.4. Removal of HX-Board--------------------------- --------- 22
.2. Applicable signals ---------------------------------------- --- 7 9.5. Removal of A-Board ----------------------------- --------- 2
4 Specifications---------------------------------------------- 9.6. Removal of PB-Board---------------------- --------- 2
5 Operating Instructions --------------------------------- --10 9.7. Removal of Fan----------------------------- --------- 2
6 Service Mode----------------------------------------------12 9.8. Removal of P-Board ----------------------- --------- 24
6.1. CAT (Computer Aided Test) mode -------------- --12 9.9. Removal of AC Inlet Assy---------------------- --------- 24
6.2. IIC mode structure (following items value is 9.10. Removal of H -Board --------------------------- --------- 24
sample data)--------------------------------------------------16 9.11. Removal of SU-Board and SD-Board------ --------- 24
7 Troubleshooting Guide -------------------------------- --17 9.12. Removal of SC-Board---------------------- --------- 25
7.1. Self Check -------------------------------------------17 9.1 . Removal of SS-Board---------------------- --------- 25
7.2. No Power ---------------------------------------------------- --19 9.14. Removal of SS2-Board -------------------- --------- 26
■ ®
Panasonic © Panasonic Corporation 2010
Unauthorized copying and distribution is a violation
of law.
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TH-50PF20E / TH-50PF20ER
9.15. Removal of C1-Board--------------------------------------26
9.16. Removal of C2-Board--------------------------------------26
9.17. Removal of C -Board--------------------------------------27
9.18. Removal of S1-Board--------------------------------------27
9.19. Removal of Front Glass, V1, V2-Board and
Cabinet Assy--------------------------------------------------27
9.20. Removal of Plasma Display Panel---------------------29
10 Measurements and Adjustments ---------------------------- 32
10.1. Adjustment----------------------------------------------------- 2
10.2. Adjustment-----------------------------------------------------
11 Block Diagram-------------------------------------------------------37
11.1. Main Block Diagram --------------------------------------- 7
11.2. Block (1 of 5) Diagram------------------------------------- 8
11. . Block (2 of 5) Diagram------------------------------------- 9
11.4. Block ( of 5) Diagram-------------------------------------40
11.5. Block (4 of 5) Diagram------------------------------------- 41
11.6. Block (5 of 5) Diagram-------------------------------------42
12 Wiring Connection Diagram-----------------------------------43
12.1. Wiring (1)-------------------------------------------------------4
12.2. Wiring (2)-------------------------------------------------------44
13 Schematic Diagram-------------------------------------------------45
1 .1. Schematic Diagram Notes ------------------------------- 45
1 .2. P-Board (1 of ) Schematic Diagram ---------------- 46
1 . . P-Board (2 of ) Schematic Diagram ---------------- 47
1 .4. P-Board ( of ) Schematic Diagram ---------------- 48
1 .5. PB, V1, V2 and S1-Board Schematic Diagram— 49
1 .6. HX-Board Schematic Diagram -------------------------- 50
1 .7. DS-Board (1 of 2) Schematic Diagram --------------- 51
1 .8. DS-Board (2 of 2) Schematic Diagram -------------- 52
1 .9. A-Board (1 of 17) Schematic Diagram ---------------5
1 .10. A-Board (2 of 17) Schematic Diagram---------------54
1 .11. A-Board ( of 17) Schematic Diagram---------------55
1 .12. A-Board (4 of 17) Schematic Diagram---------------56
1 .1 . A-Board (5 of 17) and H -Board Schematic
Diagram--------------------------------------------------------- 57
1 .14. A-Board (6 of 17) Schematic Diagram---------------58
1 .15. A-Board (7 of 17) Schematic Diagram---------------59
1 .16. A-Board (8 of 17) Schematic Diagram---------------60
1 .17. A-Board (9 of 17) Schematic Diagram --------------- 61
1 .18. A-Board (10 of 17) Schematic Diagram ------------- 62
1 .19. A-Board (11 of 17) Schematic Diagram ------------- 6
1 .20. A-Board (12 of 17) Schematic Diagram ------------- 64
1 .21. A-Board (1 of 17) Schematic Diagram ------------- 65
1 .22. A-Board (14 of 17) Schematic Diagram ------------- 66
1 .2 . A-Board (15 of 17) Schematic Diagram ------------- 67
1 .24. A-Board (16 of 17) Schematic Diagram ------------- 68
1 .25. A-Board (17 of 17) Schematic Diagram ------------- 69
1 .26. C1-Board Schematic Diagram -------------------------- 70
1 .27. C2-Board (1 of 2) Schematic Diagram ----------------71
1 .28. C2-Board (2 of 2) Schematic Diagram --------------- 72
1 .29. C -Board (1 of 2) Schematic Diagram --------------- 7
1 . 0. C -Board (2 of 2) Schematic Diagram --------------- 74
1 . 1. SC-Board (1 of 4) Schematic Diagram -------------- 75
1 . 2. SC-Board (2 of 4) Schematic Diagram -------------- 76
1 . . SC-Board ( of 4) Schematic Diagram -------------- 77
1 . 4. SC-Board (4 of 4) Schematic Diagram -------------- 78
1 . 5. SS-Board (1 of 2) Schematic Diagram -------------- 79
1 . 6. SS-Board (2 of 2) and SS2-Board Schematic
Diagram --------------------------------------------------------- 80
14 Printed Circuit Board----------------------------------------------81
14.1. P-Board---------------------------------------------------------81
14.2. PB-Board-------------------------------------------------------84
14. . HX-Board-------------------------------------------------------85
14.4. V1, V2, S1 and H -Board -------------------------------- 86
14.5. DS-Board-------------------------------------------------------87
14.6. A-Board ---------------------------------------------------------89
14.7. C1-Board-------------------------------------------------------- 91
14.8. C2-Board------------------------------------------------------- 92
14.9. C -Board------------------------------------------------------- 9
14.10. SC-Board-------------------------------------------------------94
14.11. SS2-Board------------------------------------------------------96
14.12. SS-Board-------------------------------------------------------97
15 Exploded View and Replacement Parts List -----------
15.1. Exploded View and Mechanical Replacement
Parts List------------------------------------------------------- 99
15.2. Electrical Replacement Parts List----------------------99
2
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TH-50PF20E / TH-50PF20ER
1 Safety Precautions
1.1. General Guidelines
1. When conducting repairs and servicing, do not attempt to modify the equipment, its parts or its materials.
2. When wiring units (with cables, flexible cables or lead wires) are supplied as repair parts and only one wire or some of the
wires have been broken or disconnected, do not attempt to repair or re-wire the units. Replace the entire wiring unit instead.
. When conducting repairs and servicing, do not twist the Faston connectors but plug them straight in or unplug them straight
out.
4. When servicing, observe the original lead dress.If a short circuit is found, replace all parts which have been overheated or
damaged by the short circuit.
5. After servicing, see to it that all the protective devices such as insulation barriers, insulation papers shields are properly
installed.
6. After servicing, make the following leakage current checks to prevent the customer from being exposed to shock hazards.
1.2. Touch-Current Check
1. Plug the AC cord directly into the AC outlet. Do not use an isolation transformer for this check.
2. Connect a measuring network for touch currents between each exposed metallic part on the set and a good earth ground
such as a water pipe, as shown in Figure 1.
. Use Leakage Current Tester (Simpson 228 or equivalent) to measure the potential across the measuring network.
4. Check each exposed metallic part, and measure the voltage at each point.
5. Reserve the AC plug in the AC outlet and repeat each of the above measure.
6. The potential at any point (TOUGH CURRENT) expressed as voltage U1 and U2, does not exceed the following values:
For a. c.: U1 = 5 V (peak) and U2 = 0. 5 V (peak);
For d. c.: U1 = 1.0 V,
Note:
The limit value of U2 = 0. 5 V (peak) for a. c. and U1 = 1.0 V for d. c. correspond to the values 0.7 mA (peak) a. c. and 2.0
mA d. c.
The limit value U1 = 5 V (peak) for a. c. correspond to the value 70 mA (peak) a. c. for frequencies greater than 100 kHz.
7. In case a measurement is out of the limits specified, there is a possibility of a shock hazard, and the equipment should be
repaired and rechecked before it is returned to the customer.
Measuring network for TOUCH CURRE TS
COLD
WATER PIPE
(EARTH GROUND)
Rs=
1500Q_ L Cs= 0.22|jF10kQ
-1 k 1
------ 1
Ro=
---------------
J 500Q
'U1 =
r= 0.022|jF (V )
J Q LjJ J U U i i U 1 —|— и . и ^ г ф Г ^ V J | U2 (V)
APPLIANCES
EXPOSED
METAL PARTS
Resistance values in ohms (Q)
V: Voltmeter or oscilloscope
(r.m.s. or peak reading)
Input resistance: > 1 MQ
Input capacitance: < 200 pF
Frequency range: 15 Hz to 1 MHz and d.c. respectively
NOTE - Appropriate measures should be taken to obtain the correct value in case of non-sinusoidal waveforms.
Figure 1
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TH-50PF20E / TH-50PF20ER
2 Warning
2.1. Prevention of Electrostatic Discharge (ESD) to Electrostatically Sensi
tive (ES) Devices
Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called Elec
trostatically 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.
2. After removing an electrical assembly equipped with ES devices, place the assembly on a conductive surface such as alumi
num foil, to prevent electrostatic charge buildup or exposure of the assembly.
. 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 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. (Most
replacement ES devices are packaged with leads electrically shorted together by conductive foam, aluminum foil or compara
ble 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 ham less motion such as the brush
ing 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).
4
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TH-50PF20E / TH-50PF20ER
2.2. 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 PbF 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 ( 0~40 °C) higher. Please
use a high temperature soldering iron and set it to 700 ± 20 °F ( 70 ± 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 sol
der. 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 figure below)
component component
remove all of the ^ 1П\
excess solder
slice
\
solder
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. How
ever, Sn+Cu (tin, copper), Sn+Zn+Bi (tin, zinc, bismuth) solder can also be used.
5
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TH-50PF20E / TH-50PF20ER
Service Navigation
.1. Service Hint
Board Name Function Board Name Function
A Digital Signal Processor, Microcomputer
Format Converter, Plasma AI Processor
Sub-Field Processor, Sync Processor,
Audio Processor, Speaker Out Amplifier
SS Sustain drive
SS2 Sustain out
C1 Data drive (Right)
C2 Data drive (Center)
DS Slot Interface (Audio / Video / Sync Input Switch),
DC-DC Converter C Data drive (Left)
S1 Power switch
SC Scan drive V1 Remote receiver, LED-G, R
SU Scan out (Upper)
Non serviceable.
SU-Board should be exchanged for service.
V2 Key switch
P Power supply
PB Fan control
SD Scan out (Lower)
Non serviceable.
SD-Board should be exchanged for service.
H Speaker terminal
HX PC / RS-2 2C_Input terminal
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.2. Applicable signals
TH-50PF20E / TH-50PF20ER
‘ Mark: Applicable input signal
Signal name Horizontal frequency
(kHz) Vertical frequency (Hz)
COMPONENT/
RGB IN /P C IN
(Dot clock (MHz))
DVI-D IN
(Dot clock (MHz)) HDMI
1 525 (480) / 60i 15.7 59.94 * (1 .5) * (27.0) *
2 525 (480) / 60p 1.47 59.94 * (27.0) *5 * (27.0) *
625 (575) / 50i 15.6 50.00 * (1 .5)
4 625 (576) / 50i 15.6 50.00 * (27.0) *
5 625 (575) / 50p 1.25 50.00 * (27.0)
6 625 (576) / 50p 1.25 50.00 * (27.0) *
7 750 (720) / 60p 45.00 60.00 * (74.25) * (74.25) *
8 750 (720) / 50p 7.50 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 .75 60.00 *(74.25) *1 * (74.25) *
11 1,125 (1,080) / 50p 56.26 50.00 *(148.5) *1 * (148.5) *
12 1,125 (1,080) / 50i 28.1 50.00 *(74.25) *1 * (74.25) *
1 1,125 (1,080) / 24sF 27.00 48.00 * (74.25) *2
14 1,125 (1,080) / 0p .75 0.00 *(74.25) *1 * (74.25)
15 1,125 (1,080) / 25p 28.1 25.00 *(74.25) *1 * (74.25)
16 1,125 (1,080) / 24p 27.00 24.00 *(74.25) *1 * (74.25) *
17 1,250 (1,080) / 50i 1.25 50.00 * (74.25) *
18 2,048 x 1,080 / 24sF *7 27.00 48.00
19 2,048 x 1,080 / 24p *7 27.00 24.00
20 640 x 400 @70 Hz 1.46 70.07 * (25.17)
21 640 x 480 @60 Hz 1.47 59.94 *(25.18) *6 * (25.18) *
22 640 x 480 @72 Hz 7.86 72.81 * ( 1.5)
2 640 x 480 @75 Hz 7.50 75.00 * ( 1.5)
24 640 x 480 @85 Hz 4 .27 85.01 * ( 6.0)
25 800 x 600 @56 Hz 5.16 56.25 * ( 6.0)
26 800 x 600 @60 Hz 7.88 60. 2 * (40.0) * (40.0) *
27 800 x 600 @72 Hz 48.08 72.19 * (50.0)
28 800 x 600 @75 Hz 46.88 75.00 * (49.5)
29 800 x 600 @85 Hz 5 .67 85.06 * (56.25)
0 852 x 480 @60 Hz 1.47 59.94 * ( .54) *6 * ( 4.24)
1 1,024 x 768 @50 Hz 9.55 50.00 * (51.89)
2 1,024 x 768 @60 Hz 48. 6 60.00 * (65.0) * (65.0) *
1,024 x 768 @70 Hz 56.48 70.07 * (75.0)
4 1,024 x 768 @75 Hz 60.02 75.0 * (78.75)
5 1,024 x 768 @85 Hz 68.68 85.00 * (94.5)
6 1,066 x 600 @60 Hz 7.64 59.94 * (5 .0) * (5 .0)
7 1,152 x 864 @60 Hz 5 .70 60.00 * (81.62)
8 1,152 x 864 @75 Hz 67.50 75.00 * (108.0)
9 1,280 x 768 @60 Hz 47.70 60.00 * (80.14)
40 1,280 x 960 @60 Hz 60.00 60.00 * (108.0)
41 1,280 x 960 @85 Hz 85.94 85.00 * (148.5)
42 1,280 x 1,024 @60 Hz 6 .98 60.02 * (108.0) * (108.0) *
4 1,280 x 1,024 @75 Hz 79.98 75.0 * (1 5.0)
44 1,280 x 1,024 @85 Hz 91.15 85.02 * (157.5)
45 1, 66 x 768 @50 Hz 9.55 50.00 * (69.92)
46 1, 66 x 768 @60 Hz 48. 6 60.00 * (86.71) * (87.44)
47 1,400 x 1,050 @60 Hz 65.22 60.00 * (122.61)
48 1,600 x 1,200 @60 Hz 75.00 60.00 * (162.0) * (162.0)
49 1,600 x 1,200 @65 Hz 81.25 65.00 * (175.5)
50 1,920 x 1,080 @60 Hz 67.50 60.00 *(148.5) *4 * (148.5)
51 1,920 x 1,200 @60 Hz 74.04 59.95 * (154.0)
52 Macintosh1 ” (640 x480) 5.00 66.67 * ( 0.24)
5 Macintosh16” (8 2 x624) 49.72 74.54 * (57.28)
54 Macintosh21” (1,152 x 870) 68.68 75.06 * (100.0)
*1: Based on SMPTE 274M standard.
*2: Based on SMPTE RP211 standard.
* : Based on SMPTE 295M standard.
*4: The input signal is recognized as 1,125 (1,080) / 60p.
*5: When selected the RGB format and 525p signal input to the PC IN terminal, it is recognized as VGA60Hz signal.
*6: When inputted VGA 60Hz format signal from the other than PC IN terminal, it is recognized as 525p signal.
*7: Based on SMPTE 292M and 72M standards. These signals can be received when the Dual Link HD-SDI Terminal
Board (TY-FB11DHD) is installed.
Note: Signals without above specification may not be displayed properly.
7
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TH-50PF20E / TH-50PF20ER
Video input (VIDEO)
Signal name Horizontal
frequency(kHz) Vertical frequency(Hz)
1 NTSC 15.7 59.94
2 PAL 15.6 50.00
PAL60 15.7 59.94
4 SECAM 15.6 50.00
5 Modified NTSC 15.7 59.94
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TH-50PF20E / TH-50PF20ER
4 Specifications
Power Source
Power Consumption
Power on
Stand-by condition
Power off condition
Plasma Display panel
Screen size
(No. of pixels)
Operating condition
Temperature
Humidity
Applicable signals
Color System
Scanning format
PC signals
220 - 240 V AC, 50/60Hz
445 W
Save OFF 1.1 W, Save ON 0.6 W
0. W
Drive method: AC type 50-inch,
16:9 aspect ratio
1,105 mm (W) x 622 mm (H) x 1,268 mm (diagonal)
2,07 ,600 (1,920 (W) x 1,080 (H) [5,760 x 1,080 dots]
0 °C -
20 % 40 °C 80 %
NTSC, PAL, PAL60, SECAM, Modified NTSC
525 (480) / 60i * 60p, 625 (575) / 50i • 50p, 750 (720) / 60p • 50p, 1125 (1080) /
60i • 60p • 50i • 50p • 24p • 25p * 0p * 24sF, 1250 (1080) / 50i
VGA, SVGA, XGA, SXGA
UXGA .... (compressed)
Horizontal scanning frequency 15 - 110 kHz
Vertical scanning frequency 48 - 120 Hz
Connection terminals
LAN
AV IN VIDEO
AUDIO L-R
HDMI
COMPONENT / RGB IN
Y / G
P b /C b /B
P r /C r /R
AUDIO L-R
DVI-D IN
RJ45 10BASE-T/100BASE-TX, compatible with PJLink™
PC IN
SERIAL
BNC
RCA Pin jack x 2
TYPE A Connector
BNC
BNC
BNC
RCA PIN JACK x 2
DVI-D 24 Pin
Content Protection
AUDIO Stereo mini jack (M ) x 1
High-Density Mini D-sub 15 Pin
VBS (use HD port)
AUDIO Stereo mini jack (M ) x 1
External Control Terminal
D-sub 9 Pin
Speaker Terminal
1.0 Vp-p (75-ohm)
0.5 Vrms
with sync 1.0 Vp-p (75-ohm)
0.7 Vp-p (75-ohm)
0.7 Vp-p (75-ohm)
0.5 Vrms
Compliance with DVI Revision 1.0
Compatible with HDCP 1.1
0.5 Vrms
Y or G with sync 1.0 Vp-p (75-ohm)
Y or G without sync 0.7 Vp-p (75-ohm)
PB / CB / B:0.7 Vp-p (75-ohm)
PR / CR / R:0.7 Vp-p (75-ohm)
HD / VD:1.0 - 5.0 Vp-p (high impedance)
with picture 1.0 Vp-p (high impedance)
without picture 0. Vp-p (high impedance)
0.5 Vrms
RS-2 2C compatible
6-ohm, 16 W [8 W + 8 W] (10 % THD)EXT SP
Accessories Supplied
Remote Control Transmitter
Batteries
Clamper
Dimensions (W x H x D)
Mass (weight)
main unit only
with speakers
Note:
• Design and specifications are subject to change without notice. Mass and dimensions shown are approximate.
• This equipment complies with the EMC standards listed below.
EN55022, EN55024, EN61000- -2, EN61000- - .
N2QAYB0004 2
R6 (UM ) Size x 2
TMME289 x
1,210 mm x 724 mm x 89 mm
approx. 1.0 kg net
approx. 6.0 kg
9
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TH-50PF20E / TH-50PF20ER
5 Operating Instructions
10
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TH-50PF20E / TH-50PF20ER
Option Menu for GPF1 D series
GPF13D chassis series have special function and operation setting facility called Option Menu. This Option Menu is useful
for special function required customers. This should be set at the installation stage.
Option menus default setting Contents
Weekly Command Timer --- Sets Weekly Command Timer.
Audio input select --- Set up the sound when an image input is selected.
Onscreen display On Enable/Disable to display input mode indication after power on and no signal
indication.
Initial INPUT Off Sets the initial input mode when the power is turned on. Allow input mode selec
tion while power is on.
Initial VOL level Off Sets the initial volume level when the power is turned on. Allow Volume control
while power is on.
Maximum VOL Level Off Sets the maximum volume to desired level. Volume cannot exceed this level.
INPUT lock Off Fixes the input mode to AV, Component/RGB or PC. Can not change input
mode by input selection key.
Button lock Off Enable/Disable bottom operation buttons (Input, Menu, Enter and/or volume up/
down)
Remocon User Level Off Remote key invalidation.
Off: Valid key is all key of remote.
User1: Valid key are only Stand-by (ON/OFF), Input, Direct input, Picture, Sur
round, Sound mute On/Off, and volume adjustment.
User2: Valid key is only Stand-by (ON/OFF).
User : All keys are null and void
Off-timer function Enable Off-timer operation Enable/Disable.
Initial Power Mode Normal Sets the power mode of the unit for when the power recovers from failure or
after plugging off and in again.
ID select 0 Set ID number from 0 to 100.
Remote ID Off Remote ID function On/Off.
(While the Remote ID on, standard remote function can not control the unit.)
Serial ID Off Serial ID function On/Off
Display size Off Display size function On/Off
Studio W/B Off Studio W/B function On/Off
Studio Gain Off Studio Gain function On/Off
Slot power Off Sets the slot power mode while the power is turned on.
Allow Optional Terminal Board insert Slots while power is on.
Power On Screen Delay Off You can set the power-on delay time of the displays to reduce the power load,
when you press (!) /1 to turn on the multiple displays that are set together, for
example, on MULTI DISPLAY system.
Set each display’s setting individually.
Clock Display Off Clock Display function On/Off.
All Aspect Default Aspect mode: default/All aspect mode.
Auto Setup Manual Sets the operational mode of the automatic position adjustment in the POS./
SIZE menu.
Rotate Off Rotate function On/Off
Note:
When both main unit buttons and remote control are disabled due to the “Button lock”, “Remocon User level” or “Remote ID”
adjustments, set all the values “Off” so that all the buttons are enabled again.
Press the “Volume down” button on main unit together with “R” button on the remote control and hold for more than 5 seconds.
The “SHIPPING" menu is displayed and the lock is released when it disappears.
11
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TH-50PF20E / TH-50PF20ER
6 Service Mode
6.1. CAT (Computer Aided Test) mode
To exit the CAT mode, access the ID mode and switch off the main power.
6.1.1. IIC mode
Select the IIC mode by Up/Down button on the remote control at the front page of CAT mode and then press the Action button on
the remote control.
OSD How to use the IIC mode.
1024x768/60Hz
16:9 DYNAMIC Hi
PANEL W/B Adj. <4-
R DRIVE <■
CO C04-
------------- Ж"
■ Subject
■ Item
■ New data
■Original data
1. Select the alignment Subject by Up/Down
buttons on the remote control.
2. Select the alignment Item by Left/Right buttons
on the remote control.
. Adjust optimum setting by Volume Up/Down
buttons on the remote control.
4. The data is memorized when press the R button
on the remote control or change the alignment
Subject (or Items).
Subject and item are mentioned on “IIC mode structure”.
To exit the IIC mode, press the R button on the remote control.
12
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TH-50PF20E / TH-50PF20ER
6.1.2. CD mode
Select the CD mode by Up/Down button on the remote control at the front page of CAT mode and then press the Mute button on
the remote control more than seconds.
Memory data change
Address . Change by Up/Down buttons on the
remote control.
Change by Left/Right buttons on the remote control.
Data 0 0 ■ Change by VOL Up/Down buttons on the
remote control.
The data is memorized when switch off the main power.
To exit the CD mode, press the R button on the remote control.
6.1.3. W mode
Note :
To use the network function, set each "Network Setup" setting and make sure to set the "Control I/F Select" to "LAN"
Select the NW mode by Up/Down button on the remote control at the front page of CAT mode and then press the Action button
on
the remote control.
To exit the NW mode, press the R button on the remote control.
1
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TH-50PF20E / TH-50PF20ER
6.1.4. SD mode
Select the SD mode by Up/Down button on the remote control at the front page of CAT mode and then press the Action button on
the remote control.
To exit the SD mode, press the R button on the remote control.
6.1.5. MS mode
Select the MS mode by Up/Down button on the remote control at the front page of CAT mode and then press the Mute button on
the remote control more than seconds.
MS
Market s e le c t 56.01 1
A A 2«
Change by Left/Right buttons
■ on the remote control and press
the action button to confirm.
Present number
■ EEPROM data version
To exit the MS mode, press the R button on the remote control.
Caution:
Market Select should be set after exchange of DN-Board.
Destination number
Number Destination Number Destination
0 Japan 16 --
1 North America 17 --
2 Europe 18 China
Others 19 China (Hotel)
4 Britain 20 Russia
5 Taiwan 21 Russia (Hotel)
6 Thailand 22 Hong Kong
7-- 2 --
8 Japan (Hotel) 24 --
9 North America (Hotel) 25 --
10 Europe (Hotel) 26 --
11 -- 27 --
12 Britain (Hotel) 28 Middle East/Hong Kong
1 -- 29 Middle East/Hong Kong (Hotel)
14 Thailand (Hotel) 0 Australia
15 -- 1 Australia (Hotel)
Default setting
Number Destination
1 North America
14
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TH-50PF20E / TH-50PF20ER
6.1.6. ID mode
Select the ID mode by Up/Down button on the remote control at the front page of CAT mode and then press the Mute button on
the remote control more than seconds.
To exit the ID mode, press the R button on the remote control.
15
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TH-50PF20E / TH-50PF20ER
6.2. IIC mode structure (following items value is sample data)
16
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TH-50PF20E / TH-50PF20ER
7 Troubleshooting Guide
7.1. Self Check
7.1.1. Display Indication
1. Self-check is used to automatically check the bus line
controlled circuit of the Plasma display.
2. To get into the Self-check mode, press the volume down
button on the customer controls at the bottom of the set,
at the same time pressing the OFF-TIMER button on the
remote control, and the screen will show.
If the IIC ports have been checked and found to be incorrect
Or not located then “ - - ” will appear in place of “ OK ”
“ 01 ” in the line of the “ PTCT ” means the number of blinks of
the Power LED is 1. (Reference to 7.1.2)
“ H09 ” in the line of the “ PTCT ” is the error code.
To exit the CAT mode switch off the main power.
Note:
The line of the “ PTCT ” displays when you get into the Self
check mode for the first time only after the Power LED
blinks.
17
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TH-50PF20E / TH-50PF20ER
7.1.2. Power LED Blinking timing chart
1. Subject
Information of LED Blinking timing chart.
2. Contents
When an abnormality has occurred to the unit, the protection circuit operates and resets to the stand by mode. At this time,
the defective block can be identified by the number of blinks of the Power LED on the front panel of the unit.
Refer to 7.1.1 Display Indication
About blinking LED
[When blinking four times] Lighting up
=?<—Щ Щ Щ ш m
i T T t
1st blink 2nd blink rd blink 4th blink K
I Pause for .5 seconds ✓
One cycle ^
u
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7.2. No Power
First check point
There are following states of No Power indication by power LED.
1. No lit.
2. Green is lit then turns red blinking a few seconds later.
. Only red is lit.
TH-50PF20E / TH-50PF20ER
No lit.
OK C h e c k^ ^\^
But no AC supplied board
1rNG J
Check AC power cord
or power source
Check
Fuse F201.F501,
F601, F602
7. . No Picture
OK
Check
DS board
OK
Check
A board
19
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TH-50PF20E / TH-50PF20ER
Drive circuits LED indicator
SC board SS board
r \ r \
LED
D1658
1 />o; \ /
o-
/ \
LED I
D1625
v J
7.4. Local screen failure
Plasma display may have local area failure on the screen. Fig - 1 is the possible defect PC.B. for each local area.
Fig - 1
20
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