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Model
TH-37PV80PA TH-37PX80BA TH-37PX80EA TH-42PV80PA TH-42PX80BA TH-42PX80EA
Pages
127
Size
18.92 MB
Type
PDF
Document
Service Manual
Brand
Device
Plasma / GPH11DE CHASSIS
File
th-37pv80pa-th-37px80ba-th-37px80ea-th-42pv80pa-th.pdf
Date
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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 follows.
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 MAIN
A
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
P
ANEL ST
A
TUS
EEPROM
+2.5V(P)
Ready
,ALARM
+3.3V(STB)
SOS8_SS
SOS7_SC2
+2.5V(P)
DCDC
LVDS Rx
P
ANEL 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 CONTR
OL
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
Vda
Vda
+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
SUST
AIN CONTR
OL
SUSTAIN CONTROL
SUSTAIN CONTROL
VIDEO D
A
T
A
VIDEO D
A
T
A
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 DRIVE
SS
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
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