GPH11DE
Panasonic GPH11DE, TH-37PV80PA, TH-37PX80BA, TH-37PX80EA, TH-42PV80PA Service Manual
...
© 2008 Matsushita Electric Industrial Co., Ltd. All
rights reserved. Unauthorized copying and distribu-
tion is a violation of law.
ORDER NO.PCZ0808097CE
Plasma Television
Model No. TH-37PV80PA
TH-37PX80BA
TH-37PX80EA
TH-42PV80PA
TH-42PX80BA
TH-42PX80EA
GPH11DE Chassis
2
1 Safety Precautions
1.1. General Guidelines
1. When servicing, observe the original lead dress. If a short circuit is found, replace al l parts which have been overheated or
damaged by the short circuit.
2. After servicing, see to it that all the protective devices such as insulation barriers, insulation papers shields are properly
installed.
3. After servicing, make the following leakage current checks to prevent the customer from being exposed to shock hazards.
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.
3. 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 U
1
and U
2
, does not exceed the following values:
For a. c.: U
1
= 35 V (peak) and U
2
= 0.35 V (peak);
For d. c.: U
1
= 1.0 V,
Note:
The limit value of U
2
= 0.35 V (peak) for a. c. and U
1
= 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 U
1
= 35 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.
Figure 1
3
2Warning
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 compon ent 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 al umi-
num foil, to prevent electrostatic charge buildup 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 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
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 issue s. 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 (30~40 °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 befo re 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)
Suggested Pb free solder
There are several kinds of Pb free solder available for p urchase. 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
3 Service Navigation
3.1. Service Hint (42 inch)
Board Name Function Board Name Function
P Power Supply C1 Data Driver (Lower Right)
A DC-DC Converter
Speaker out, Sound Processor
AV Terminal, AV Switch
Digital Signal Processor, MPU, HDMI Interface
Peaks Lite 2p
Format Converter, Plasma AI, Sub-Field Processor
C2 Data Driver (Lower Left)
SC Scan Drive
SU Scan out (Upper)
SD Scan out (Lower)
SS Sustain Drive
G Key Switch, Front Terminal
K Remote receiver, Power LED GS SD Card Slot
S Power Switch
6
3.2. Service Hint (37 inch)
Board Name Function Board Name Function
P Power Supply C1 Data Driver (Lower Right)
A DC-DC Converter
Speaker out, Sound Processor
AV Terminal, AV Switch
Digital Signal Processor, MPU, HDMI Interface
Peaks Lite 2p
Format Converter, Plasma AI, Sub-Field Processor
C2 Data Driver (Lower Left)
SC Scan Drive
SM Scan out
SS Sustain Drive
G Key Switch, Front Terminal
GS SD Card Slot
K Remote receiver, Power LED S Power Switch
7
3.3. Applicable signals
8
4 Specifications
Power Source AC 220 - 240 V, 50/60 Hz
Power Consumption
Average use 235 W (37 inch)
255 W (42 inch)
Standby condition 0.7 W (Without monitor out recording)
20 W (With monitor out recording)
Plasma Display panel
Aspect Ratio 16:9
Visible screen size 94 cm (diagonal) (37 inch)
819 mm (W) × 457 mm (H) (37 inch)
106 cm (diagonal) (42 inch)
922 mm (W) × 518 mm (H) (42 inch)
Number of pixels 737,280 (1,024 (W) × 720 (H)) [3,072 × 720 dots] (37 inch)
786,432 (1,024 (W) × 768 (H)) [3,072 × 768 dots] (42 inch)
Sound
Speaker 160 mm × 42 mm × 2 pcs, 8 Ω
Audio Output 20 W (10 W + 10 W), 10% THD
Headphones M3 (3.5 mm) stereo mini Jack × 1
PC signals VGA, SVGA, XGA
SXGA ....... compressed)
Horizontal scanning frequency 31 - 69 kHz
Vertical scanning frequency 59 - 86 Hz
Receiving Systems / Band name PAL I : UHF E21-68
(BA model) PAL 525/60 : Playback of NTSC tape from some PAL Video recorders (VCR)
or NTSC disc playback from DVD player and recorder.
DVB : Digital terrestrial services via UHF aerial input.
M.NTSC : Playback from M.NTSC Video recorders (VCR).
NTSC (AV input only) : Playback from NTSC Video recorders (VCR).
(EA/PA model) PAL B, G, H, I, SECAM B, G, SECAM L/L’ :
VHF E2 - E12 VHF H1 - H2 (ITALY)
VHF A - H (ITALY) UHF E21 - E69
CATV (S01 - S05) CATV S1 - S10 (M1 - M10)
CATV S11 - S20 (U1 - U10) CATV S21 - S41 (Hyperband)
PAL D, K, SECAM D, K :
VHF R1 - R2 VHF R3 - R5
VHF R6 - R12 UHF E21 -E69
PAL 520/60 : Playback of NTSC tape from some PAL Video recorders (VCR)
DVB : Digital terrestrial services via VHF / UHF aerial input.
M.NTSC : Playback from M. NTSC Video recorders (VCR)
NTSC (AV input only) : Playback from NTSC Video recorders (VCR)
TV signals may not be received in some areas.
Aerial - Rear UHF (BA model), VHF/UHF (EA/PA model)
Operating Conditions
Temperature: 0 °C - 35 °C
Humidity: 20 % - 80 % RH (non-condensing)
Connection Terminals
AV1 (Scart terminal) 21 Pin terminal (Audio/Video in, Audio/Video out, RGB in, Q-Link)
AV2 (Scart terminal) 21 Pin terminal (Audio/Video in, Audio/Video out, RGB in, S-Video in, Q-Link)
AV3
VIDEO RCA PIN Type × 1 1.0 V [p-p] (75 Ω)
S-VIDEO Mini DIN 4-pin Y:1.0 V [p-p] (75 Ω) C:0.286 V [p-p] (75 Ω)
AUDIO L - R RCA PIN
Type × 2 0.5 V [rms]
COMPONENT
VIDEO Y 1.0 V [p-p] (including synchronization)
P
B
, P
R
± 0.35 V [p-p]
AUDIO L - R RCA PIN Type × 2 0.5 V [rms]
Others
HDMI1 / 2 / 3 TYPE A Connectors This TV supports [HDAVI Control 3] function.
PC HIGH-DENSITY D-SUB 15PIN R, G, B/ 0.7 V [p-p] (75 Ω)
HD, VD/TTL Level 2.0 - 5.0 V [p-p] (high impedance)
Card slot SD Card slot × 1
Output
AUDIO L - R RCA PIN Type × 2 0.5 V [rms] (high impedance)
9
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.
EN55013, EN61000-3-2, EN61000-3-3, EN55020, EN55022, EN55024.
Dimensions (W × H × D) 917 mm × 665 mm × 327 mm (With Pedestal) (37 inch)
917 mm × 617 mm × 95 mm (TV only) (37 inch)
1,020 mm × 727 mm × 327 mm (With Pedestal) (42 inch)
1,020 mm × 679 mm × 95 mm (TV only) (42 inch)
Mass 24.5 k Net (With Pedestal) (37 inch)
22.5 k Net (TV only) (37 inch)
28.0 k Net (With Pedestal) (42 inch)
26.0 k Net (TV only) (42 inch)
10
5 Service Mode
5.1. How to enter into Service Mode
While pressing [VOLUME ( - )] button of the main unit, press [0] button of the remote control three times within 2 seconds.
5.1.1. Key command
[1] button...Main items Selection in forward direction
[2] button...Main items Selection in reverse direction
[3] button...Sub items Selection in forward direction
[4] button...Sub items Selection in reverse direction
[RED] button...All Sub items Selection in forward direction
[GREEN] button...All Sub items Selection in reverse direction
[VOL] button...Value of sub items change in forward direction ( + ), in reverse direction ( - )
11
5.1.2. Contents of adjustment mode
• Value is shown as a hexadecimal number.
• Preset value differs depending on models.
• After entering the adjustment mode, take note of the value in each item before starting adjustment.
5.1.3. How to exit
Switch off the power with the [POWER] button on the main unit or the [POWER] button on the remote control.
12
5.2. Service tool mode
5.2.1. How to access
1. Select [SRV-T OOL] in Service Mode.
2. Press [OK] button on the remote control.
5.2.2. Display of SOS History
SOS History (Number of LED blinking) indication.
From left side; Last SOS, before Last, three occurrence before, 2nd occurrence after shipment, 1st occurrence after shipment.
This indication will be cleared by [Self-check indication and forced to factory shipment setting].
5.2.3. POWER ON TIME/COUNT
Note : To display TIME/COUNT menu, highlight position, then press MUTE for 3sec.
Time : Cumulative power on time, indicated hour : minute by decimal
Count : Number of On times by decimal
Note : This indication will not be cleared by either of the self-checks or any other command.
5.2.4. Exit
1. Disconnect the AC cord from wall outlet.
13
5.3. Hotel mode
1. Purpose
Restrict a function for hotels.
2. Access command to the Hotel mode setup menu
In order to display the Hotel mode setup menu, please
enter the following command (within 2 second).
[TV] : Vol. [Down] + [REMOTE] : AV (3 times)
Then, the Hotel mode setup menu is displayed.
3. To exit the Hotel mode setup menu
Disconnect AC power cord from wall outlet.
4. Explain the Hotel mode setup menu
item Function
Hotel Mode Select hotel mode ON/OFF
Initial INPUT Select input signal modes.
Set the input, when each time power is switched
on.
Selection :
Off/Analog/DVB/AV1/AV2/AV2S/COMPONENT/
PC/HDMI1/HDMI2/HDMI3
• Off: give priority to a last memory. However,
Euro model is compulsorily set to TV.
• AVnS/AVnC: only Euro model selectable
• PC: selectable with VGA option
Initial POS Select programme number.
Selection :
Off/0 to 99
• Off: give priority to a last memory
Initial VOL level Adjust the volume when each time power is
switched on.
Selection/Range :
Off/0 to 63
• Off: give priority to a last memory
Maximum VOL
level
Adjust maximum volume.
Range :
0 to 63
Button lock Select local key conditions.
Selection :
Off/SETUP/MENU/All
• Off: altogether valid
• SETUP: only F-key is invalid
(Tuning guide(menu) can not be selected.)
• MENU: only F-key is invalid
(only Volume/Mute can be selected.)
• ALL: altogether invalid.
Remote lock Select remote control key conditions.
Selection :
Off/SETUP/MENU
• Off: altogether valid
• SETUP: only Setup menu is invalid
• MENU: Picture/Sound/Setup menu are invalid
14
6 Troubleshooting Guide
Use the self-check function to test the unit.
1. Checking the IIC bus lines
2. Power LED Blinking timing
6.1. Check of the IIC bus lines
6.1.1. How to access
Self-check indication only:
Produce TV reception screen, and while pressing [VOLUME ( - )] button on the main unit, press [OK] b utton on the remote control
for more than 3 seconds.
Self-check indication and forced to factory shipment setting:
Produce TV reception screen, and while pressing [VOLUME ( - )] button on the ma in unit, press [MENU] button on the remote con-
trol for more than 3 seconds.
6.1.2. Screen display
6.1.3. Check Point
Confirm the following parts if NG was displayed.
6.1.4. Exit
Disconnect the AC cord from wall outlet.
15
6.2. Power LED Blinking timing chart
1. Subject
Information of LED Flashing timing chart.
2. Contents
When an abnormality has occurred the unit, the protection circuit operates and reset 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.
16
6.3. No Power
First check point
There are following 2 states of No Power indication by power LED.
1. No lit
2. Red is lit then turns red blinking a few seconds later. (See 6.2.)
17
6.4. No Picture
18
6.5. Local screen failure
Plasma display may have local area failure on the screen. Fig-1 is the possible defect P.C.B. for each local area.
Fig-1
19
7 Disassembly and Assembly Instructions
7.1. Remove the rear cover
1. See Service Hint (Section 3)
7.2. Remove the P-Board
Caution:
To remove P.C.B. wait 1 minute after power was off for dis-
charge from electrolysis capacitors.
1. Unlock the cable clampers to free the cable.
2. Disconnect the connectors (P2, P6, P7, P9, P11, P12 and
P25).
3. Remove the screws (×10 ) and remove the P-Board.
7.3. Remove the rear terminal cover
1. Remove the screws (×3 , ×4 ).
2. Remove the rear terminal cover.
7.4. Remove the Tuner unit
1. Unlock the cable clampers to free the cable.
2. Disconnect the connectors (A1, A7, A12, A20, A25, A31,
A32, A51, A52).
3. Remove the screws (×5 ) and remove the tuner unit.
7.5. Remove the A-Board
1. Remove the tuner unit. (See section 7.4.)
2. Remove the tab and remove the CI cover.
3. Remove the screws (×7 ) and remove the A-Board.
20
7.6. Remove the SU-Board (42 inch)
1. Remove the flexible cables (SU1B, SU2B, SU3B and
SU4B) connected to the SU-Board.
2. Remove the flexible cable (SU11-SD11) and the bridge
connector (SC41-SU41).
3. Remove the screws (×2 , ×2 ) and remove the SU-
Board.
7.7. Remove the SM-Board
(37 inch)
1. Remove the flexible cables (SM1, SM2, SM3, SM4, SM5
and SM6).
2. Remove the bridge connector (SM41, SM42 and SM46).
3. Remove the screws (×3 , ×4 ) and remove the SM-
Board.
7.8. Remove the SD-Board (42 inch)
1. Remove the flexible cables (SD1B, SD2B, SD3B and
SD4B) connected to the SD-Board.
2. Remove the flexible cable (SU11-SD11) and the bridge
connectors (SC42-SD42 and SC46-SD46).
3. Remove the screws (×2 , ×2 ) and remove the SD-
Board.
7.9. Remove the SC-Board
1. Remove the SU-Board, SM-Board and SD-Board. (See
section 7.6., 7.7. and 7.8.)
2. Unlock the cable clampers to free the cable.
3. Disconnect the connector (SC2).
4. Disconnect the flexible cable (SC20).
5. Remove the screws (×6 ) and remove the SC-Board.
21
7.10. Remove the SS-Board
1. Unlock the cable clampers to free the cable.
2. Disconnect the connectors (SS11, SS12, SS23 and
SS34).
3. Disconnect the flexible cables (SS53A and SS56A) (42
inch)/(SS53 and SS56) (37 inch).
4. Remove the molding prop (×1 ).
5. Remove the screws (×5 ) and remove the SS-Board.
7.11. Remove the stand brackets
1. Remove the plasma panel section from the servicing
stand and lay on a flat surface such as a table (covered)
with the plasma panel surface facing downward.
2. Remove the stand brackets (left, right) fastening screws
(×4 each) and remove the stand brackets (left, right).
7.12. Remove the C1-Board
1. Remove the tuner unit. (See section 7.4.)
2. Unlock the cable clampers to free the cable.
3. Remove the flexible cables holder fastening screws (×8
).
4. Disconnect the flexible cables (CB1, CB2, CB3 and CB4).
5. Disconnect the flexible cables (C10 and C11).
6. Remove the screws (×4 ) and remove the C1-Board.
42 inch
37 inch
22
7.13. Remove the C2-Board
1. Remove the tuner unit. (See section 7.4. )
2. Unlock the cable clampers to free the cable.
3. Remove the flexible cables holder fastening screws
(×8 ).
4. Disconnect the flexible cables (CB5, CB6, CB7 and CB8).
5. Disconnect the flexible cables (C20 and C21).
6. Disconnect the connector (C23).
7. Remove the screws (×4 ) and remove the C2-Board.
42 inch
37 inch
7.14. Remove the front bracket
1. Disconnect the connector (A51 and A52). (See section
7.4.)
2. Remove the screws (×4 ) and remove the front
bracket.
7.15. Remove the G-Board and
GS-Board
1. Remove the front bracket. (See section 7.14.)
2. Remove the screws (×2 ) and remove the front shield
front.
3. Remove the screws (×5 ) and disconnect the connec-
tor (G51 and GS52).
4. Remove the G-Board and GS-Board.
7.16. Remove the speaker L, R
1. Disconnect the connector (A12). (See section 7.4.)
2. Remove the screws (×4 each) and remove the
speaker L, R.
23
7.17. Remove the S-Board
1. Remove the stand brackets. (See section 7.11.)
2. Remove the screws (×2 ).
3. Disconnect the connector (S1).
4. Remove the screws (×2 ) and remove the S-Board.
7.18. Remove the K-Board
1. Remove the S-Board. (See section 7.17.)
2. Unlock the cable clampers to free the cable.
3. Remove the screws (×2 ).
4. Disconnect the connectors (K1) and remove the K-Board.
7.19. Remove the Plasma panel sec-
tion from the Cabinet assy
(glass)
1. Remove the stand brackets (left, right) fastening screw
(×1 each).
2. Remove the cabinet assy and the plasma panel fastening
screws (×7 ).
24
3. For leaving the plasma panel from the front frame, pull the
bottom of the cabinet assy forward, lift, and remove.
4. Remove the spacers and spacer rings (×6 ).
Caution:
• Please confirm the installation plate of Spacer and Spacer
Ring when you exchange the Plasma Panel, and install
Spacer and Spacer Ring in an original installation place after
exchange the Plasma Panel.
7.20. Replace the plasma panel
(finished)
1. Place the new plasma panel (finished) on the flat surface
of the table (covered by a soft cloth), with the plasma
panel surface facing downward.
2. Attach the C1-Board and the C2-Board, connect the flexi-
ble cables (×16) from the Plasma panel to the C1-Board
and the C2-Board, and fit the flexible cable holders.
3. Attach the Hooks (left, right) and fit the stand brackets (L,
R) to the new plasma panel.
4. Place the plasma panel section on the servicing stand.
5. Attach the cabinet assy and each P.C.Board and so on, to
the new plasma panel.
*When fitting the cabinet assy, be careful not to allow
any debris, dust or handling residue to remain
between the front glass and plasma panel.
25
8 Measurements and Adjustments
8.1. Driver Set-up
8.1.1. Item / Preparation
1. Input a white signal to plasma video input.
2. Set the picture controls as foll o w s.
Picture menu: Dynamic
PNR: OFF
Aspect: 16:9
Caution
1. First perform Vsus adjustment.
2. Confirmation of Vscn voltage should be performed after
confirmation of Vad adjustment.
When Vad=-149V, Voltage of Vscn is -4V ±4V.
8.1.2. Adjustments
Adjust driver section voltages referring the panel data on the
panel data label.
Check or adjust the following voltages with the multimeter.
*See the Panel label.
Name Test Point Voltage Volume Remarks
Vsus TPVSUS
(SS)
Vsus ± 2V R628 (P) *
Ve TPVE (SS) Ve ± 1V VR16000 (SS) *
Vset TPVSET
(SC)
320V + 7V, -9V Fixed
Vad TPVAD (SC) -149V ± 1V VR16600 (SC)
Vscn TPVSCN
(SC)
Vad+145V ± 4V Fixed
Vda TPVDA (SS) 75V ± 1V, -2V Fixed
26
8.1.3. P.C.B. (Printed Circuit Board) exchange
8.1.3.1. Caution
1. To remove P.C.B. , wait 1 minute after power was off for discharge from electrolysis capacitors.
8.1.3.2. Quick adjustment after P.C.B. exchange
Adjust the following voltages with the multimeter.
*See the Panel label.
Caution:
Absolutely do not reduce Vsus below Ve not to damage the P.C.B.
8.1.4. Adjustment Volume Location
8.1.5. Test Point Location
P.C.B. Name Test Point Voltage Volume Remarks
P Board Vsus TPVSUS (SS) Vsus ± 2V R628 (P) *
SC Board Vad TPVAD (SC) -149V ± 1V VR16600 (SC)
SS Board Ve TPVE (SS) Ve ± 1V VR16000 (SS) *
27
9 Block Diagram
9.1. Block (1/7) Diagram
A7
HDMI2
HDMI Rx
A/D CONV.
HDMI1
A1
SD CARD I/F
+3.3V(S)
K
GS52
A52
LED/RMT
REMOTE
RESET
LED
L,R
+3.3V(STB)
+5V(S)
+3.3V(S)
G51
Y,PB,PR
HP
DIGITAL
AUDIO
OUT
PWM
AUDIO AMP
Dig/Ana
Tuner
MONITOR L,R
+1.8V(S)
SUB+3.3V
SIF,AM
SUB+1.2V
HP L/R
+3.3V(S)
DTV
DCDC
KEY1
+15V(S)
KEY SCAN
DCDC
+1.2V(S)
SUB+1.8V
FRONT TERMINAL
Y,C , V
IECOUT
R_LED_ON
STANDBY MPU
SD CARD SLOT
G
COMP
GS
A51
from
L,R
P5
PC
K1
SD BOOT
SBO2
SBI2
(MAIN MPU+VIDEO PROCESSOR)
Peaks Lite2p
+3.3V(STB)
GenX5
+5V(S)
RESET
REMOTE
EEPROM
SOUND+15V
SOUND_SOS
BT+30V
+30V(BT)+9V(P)
KEY
L,R
Y,C , V
OPT
HDMI
L,R
RF
A12
AV3
VIDEO
AUDIO
SWITCH
HEADPHONE
AV1
R,G,B
AUDIO
PROCESSOR
SPEAKER(R)
SOUND SOS
AV2
SPEAKER(L)
Y,C , V
PANEL_STB_ON
PANEL SIDE SOS
PANEL_STATUS
SOUND SOS DET
DIGITAL MAINA
SD DATA
DTV
IEC OUT
Digital Video Signal
LVDS
SERIAL
L,R
Y,C , V
RESET
IIC1
DDR
+5V(P)
+3.3V(P) DET MAIN ON/OFF
POWER SOS
+3.3VSTB)
CPG with SS
FLASH
MEMORY
+5V(P)
SUSTAIN CONTROL
+15V(P) DET
+5V(STB)
A32
+15V(P)
POWER_SOS
+15V(P)
A25
MPU
DCDC
DCDC
Plasma AI
H/V Sync Control
+5V(P)
+1.2V(P)
Sub Filed Processor
+3.3V(P)
+5V(P) DET
+3.3V(P)
+1.2V(P)
SOS6_SC1
PANEL STATUS
EEPROM
+2.5V(P)
Ready,ALARM
+3.3V(STB)
SOS8_SS
SOS7_SC2
+2.5V(P)
DCDC
LVDS Rx
PANEL STB_ON
LVDS
FPGA
+3.3V(P)
VIDEO DATA
+15V(P)
SOS8_SS
A31
+5V(P)
VIDEO DATA
+5V(P)
+15V(P)
A20
to/from
P25
to
C11
to/from
C21
+5V(STB)
+15V(F_STB)
+15V(SOUND)
SC20
to/from
SCAN CONTROL
L,R
ALL OFF
DDR2
CLOCK GEN
+3.3V(M)
SUB+5V SENSE
+5V(S)
SUB+5V SENSE
MAIN+3.3V SENSE
MAIN+9V SENSE
+9V(M)
+3.3V(S)
DTV+9V SENSE
+9V(S)
Thermal
sensor
OFDM
IFD1/2
HDMI3
L,R
(ATV or DTV)
MONITOR
OUT
G_LED_ON
PD2-M
Dischrge Control
Genx6
DVB_CVBS
Digital
FOR FACTORY USE
A33
A35
FOR FACTORY USE
A34
FOR FACTORY USE
BA/EA ONLY
CI SLOT
BUFFER
HSDIN
TS Parallel
EEPROM
(LED 11TIMES)(LED 12TIMES)
(LED
3TIMES)
(LED
7TIMES)
(LED
5TIMES)
(LED
8TIMES)
(LED
2TIMES)
(LED
6TIMES)
(LED
4TIMES)
TH-37/42PV80PA, PX80BA/EA
Block (1/7) Diagram
TH-37/42PV80PA, PX80BA/EA
Block (1/7) Diagram
28
9.2. Block (2/7) Diagram (42 inch)
A7
AC CORD
Vda
+5V(P)
C11
MAIN SW1
C10
P12
SS34
MAIN SW2
SOS8_SS
+5V(P)
SOS7_SC2
C20
+5V(STB)
SS12
C1
A20
+15V(P)
MAIN SW1
+5V(P)
C23
+5V(P)
VSUS
Vda
SS23
MAIN SW1
MAIN SW2
SC41
SC42
VSUS
SD42
VdaVda
+15V(P)
SC2
SC20
SS11
MAIN SW2
VSUS
+5V(P)
C21
P11
P-BOARD
SOS DETECT
+5V(P)
VSUS
SU11
+15V(P)
Main Block(Tuner side)
SD11
SU41
A31
A32
P2
SOS8_SS
P
C2
Vda
Vda
P9
SOS6_SC1
SOS8_SS
POWER SUPPLY
F+15V
SUSTAIN
VOLTAGE
CONTROL
SUSTAIN
VOLTAGE
RECTIFIER
PROCESS
VOLTAGE
RECTIFIER
POWER
FACTOR
CONTROL
PROCESS
VOLTAGE
CONTROL
STANDBY
VOLTAGE
RECTIFIER
RELAY
LINE
FILTER
LINE
FILTER
RECTIFIER
RECTIFIER
STANDBY
VOLTAGE
CONTROL
ADDRESS
VOLTAGE
(VE)
ERASE
PULSE
SUSTAIN
PULSE
SS-BOARD
SOS DETECT
SUSTAIN CONTROL
SUSTAIN CONTROLSUSTAIN CONTROL
VIDEO DATA
VIDEO DATA
SC-BOARD
FLOATING PART
SOS DETECT
SC-BOARD
ENERGY RECOVERY
SOS DETECT
+15V(P)
+5V(P)
SCAN CONTROL
DATA DRIVER (RIGHT)
DATA DRIVER (LEFT)
SUSTAIN DRIVESS
SC SCAN DRIVE
SU SCAN OUT (UPPER)
SCAN OUT (LOWER)SD
VOLTAGE
GENERATOR
CONTROL
PULSE
SCAN
PULSE
SUSTAIN
PULSE
SCAN
DRIVER
DATA
DRIVER
DATA
DRIVER
DATA
DRIVER
DATA
DRIVER
DATA
DRIVER
DATA
DRIVER
DATA
DRIVER
DATA
DRIVER
+15V(P)
+5V(P)
P25
POWER MICOM
A25
PS SOS
ON/OFF CONTROL
SD46
SCAN
DRIVER
SC46
F+15V
+15V(SND)
P6
+5V(STB)
P7
POWER SWITCH
S1
ON
S
POWER SW
COLD HOT
(LED
8 TIME)
(LED
6 TIMES)
(LED
7 TIMES)
(LED
4 TIME)
TH-42PV80PA, PX80BA/EA
Block (2/7) Diagram
TH-42PV80PA, PX80BA/EA
Block (2/7) Diagram
29
9.3. Block (3/7) Diagram (37 inch)
SS34
SC42
+5V(P)
+5V(P)
VSUS
SOS6_SC1
SM42
Vda
C21
C10
SOS8_SS
S1
+15V(P)
SS12
SC2
SOS7_SC2
SC41
C20
ON
Vda
Main Block(Tuner side)
SC20
SM41
+5V(P)
A31
SS23
A32
C23
SS11
A20
VSUS
C11
+5V(STB)
VSUS
MAIN SW2
Vda
VSUS
RELAY
LINE
FILTER
LINE
FILTER
RECTIFIER
RECTIFIER
STANDBY
VOLTAGE
CONTROL
P11
P-BOARD
SOS DETECT
MAIN SW1
P2
+5V(P)
Vda
+15V(P)
+15V(P)
F+15V
P9
SUSTAIN
VOLTAGE
CONTROL
SUSTAIN
VOLTAGE
RECTIFIER
PROCESS
VOLTAGE
RECTIFIER
POWER
FACTOR
CONTROL
PROCESS
VOLTAGE
CONTROL
P12
STANDBY
VOLTAGE
RECTIFIER
ADDRESS
VOLTAGE
(VE)
ERASE
PULSE
+15V(P)
MAIN SW1
Vda
MAIN SW1
MAIN SW2
SUSTAIN
PULSE
SOS8_SS
SS-BOARD
SOS DETECT
SUSTAIN CONTROL
+5V(P)
MAIN SW2
SUSTAIN CONTROL
DATA
DRIVER
DATA
DRIVER
DATA
DRIVER
DATA
DRIVER
DATA
DRIVER
DATA
DRIVER
DATA
DRIVER
DATA
DRIVER
VIDEO DATA
Vda
SOS8_SS
+5V(P)
SUSTAIN CONTROL
+5V(P)
VIDEO DATA
SC-BOARD
FLOATING PART
SOS DETECT
SC-BOARD
ENERGY RECOVERY
SOS DETECT
POWER SW
VOLTAGE
GENERATOR
CONTROL
PULSE
SCAN
PULSE
SCAN CONTROL
SUSTAIN
PULSE
SCAN
DRIVER
C1
DATA DRIVER (RIGHT)
C2
DATA DRIVER (LEFT)
P
POWER SUPPLY
SUSTAIN DRIVESS
S
POWER SWITCH
SC SCAN DRIVE
SM SCAN OUT
A7
+15V(P)
POWER MICOM
A5
PS SOS
ON/OFF CONTROL
+5V(P)
P25
SCAN
DRIVER
SM46 SC46
+5V(STB)
P7
P6
+15V(SND)
F+15V
AC CORD
(LED 8 TIME)
(LED
6 TIMES)
(LED
7 TIMES)
COLD HOT
(LED
4 TIME)
TH-37PV80PA, PX80BA/EA
Block (3/7) Diagram
TH-37PV80PA, PX80BA/EA
Block (3/7) Diagram
30
9.4. Block (4/7) Diagram
MAIN9V
SUB3.3VSUB5V
SOUND15V
SUB3.3V
SUB5V
STB5V
S_15V
STB5V
F15V
MAIN9V
SUB5V
DTV9V
D5521
D5522
D5612
SUB3.3V
SUB1.8V
SUB1.2V
MAIN5V
MAIN3.3V
D2017
D2014
D1107
SUB3.3V
DTV9V
STB3.3V
STB5V
SUB5V
MAIN9V
BT30V
AV1
AV2
JK3002
JK3003
AV1_V
AV1_RED
AV1_GREEN
AV1_BLUE
AV1_LIN
AV1_RIN
AV1_VOUT
AV1_LOUT
AV1_ROUT
AV2_V_Y
AV2_RED_C
AV2_GREEN
AV2_BLUE
AV2_ROUT
AV2_LIN
AV2_RIN
AV2_VOUT
AV2_LOUT
A51
415
2
10 1
3
9326
4
G51
HEADPHONE
1
AV3_L
6
AV3_C
CONTROL
BUTTON
AV3_V
AV3
HP_L
10 15
AV3_Y
KEY1
HP_R
AV3_R
9
JK3100
AUDIO
IN/OUT
YPBPR
ROUT
Y
PB
LOUT
PR
LIN
RIN
PC IN
B
JK3001
G
R
IC3001
RF
AV SW
TV/DTV
AV1
V,R,G,B
L,R
V,Y,C,R,G,B
AV2
L,R
Y,PB,PR
COMP/PC
R,G,B
L,R
DVB_CVBS
L,R
V,Y, C
AV3
L,R
AV1_VOUT
AV2_VOUT
CVBS/S/YUV
/RGB(PC)
MAIN
TU8301
SUB+5V
SIF,AM
BT+30V
RF
Dig/Ana
Tuner
IFD1/2
L,R
IC2106
AUDIO PROCESSOR
L,R
SIF,AM
TV_LR/DTV_LR
AV1_L,ROUT
AV2_L,ROUT
L,ROUT
HP L,R
IC2012
HP AMP
IC2013
L(+)
3
A12
2
SOS DET
R(-)
AUDIO AMP
1
+15V
4
IC2301
SPEAKER
OUT
R(+)
SPEAKER L,R
L(-)
SP L,R
IIC2
+3.3V
IC2008
+1.8V
IC2107
+1.8V
+3.3V
IIC2
PWM
HEADPHONE
DTV
HDMI Audio
+1.8V
HDMI
Digtal
Video
Signal
IC4511
+3.3V
+5V(HDMI)
HDMI_CEC
CEC
IC4513
+3.3V
Q4521
DET3
+5V(HDMI)
IC4518
EEPROM
5V<->3.3V
Digtal
Audio
Signal
DECORD
DDC IIC
+5V(HDMI)
+1.8V
IIC1
HDMI PROCESSOR
HDMI2
HDMI Rx/AD CONV.
IC4514
A/D
DDC_IIC1
TMDS
IC4515
AUDIO
DDCA_IIC
DDC_IIC0
CEC
IC4512
LEVEL SHIFT
VIDEO
5V<->3.3V
DDCB_IIC
+5V
SW
HDMI1
HDMI3
+1.8V
Analog video signal
DDCC_IIC
DET2
TMDS
CEC
+5V
HDMI3
LEVEL SHIFT
DDC IIC
Q4503
+1.8V
DDC IIC
HDMI1
IC4510
Q4502
TMDS
HDMI2
+5V
DET1
JK4500
JK4501 JK4502
TUNER_SUB_ON
ECO_ON
STB5V
+15V_S
F+15V
F+15V
+15V_S
F+15V
+15V_S
1
2
3
10
P6, P7
A7
12
15
13
17
14
IC5401
IC5400
+5V
SUB+5V
+9V
SUB+9V
SHORT SOS
BT+30V
Q5522
Norm Low
Ab
high
DTV+9V
SUB+5V
+1.8V
IC5600
IC5601
Norm Low
Ab
high
Q5606,07
SUB+3.3V
F+15V DET
+1.2V
+3.3V
+5V
+9V +5V
IC5660
RESET
XRST
SOUND SOS
Q2022
SOS Low
KEY1
PANEL STATUS
(READY)
XRST
PANEL STB_ON
HDMI_CEC_PU_ON
HDMI_CEC
IC1100
STANDBY_MPU
SOUND_SOS
STB+3.3V
IIC
PANEL SOS
(ARARM)
+5V(HDMI)
DET1,2,3
TUNER_SUB_ON
GenX5
SOS
ECO_ON
SUB3.3V_SENSE
MAIN3.3V_SENSE
SUB5V_SENSE
MAIN9V_SENSE
DTV_9V_SENSE
G_LED_ON
RMIN
AI_SENSOR
R_LED_ON
EEPROM
IC1101
SBI2
SBO2
IIC3
IIC3
DIGITAL
DEMODULATOR
OFDM
IC8301
1.8V
3.3V
IC8302
+1.8V
IIC_TUNER
IIC2
IIC_TUNER
XRST
STB_RST
IC1102
BUFFER
IC2403
STB3.3V
STB_RESET
STB
+3.3V
+9V
BT30V
Q2027
STB_RST
SD BOOT
IIC1
TEMP SENSOR
IC4800
IIC SW
IC4811
BA/EA ONLY
4
10
1
5
2
6
7
14
15
13
11
12
9
3
8
(LED 3TIMES)
(+5.6V)
(LED
12TIMES)
(LED 10TIMES)
(LED
12TIMES)
TH-37/42PV80PA, PX80BA/EA
Block (4/7) Diagram
TH-37/42PV80PA, PX80BA/EA
Block (4/7) Diagram
DIGITAL MAINA
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