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or
+
+
SHADED COMPONENTS HAVE SPECIAL CHARACTERISTICS
IMPORTANT TO SAFETY. BEFORE REPLACING ANY OF
THESE COMPONENTS, READ CAREFULLY THE PRODUCT
SAFETY NOTICE IN THE SERVICE MANUAL. DON’T
DEGRADE THE SAFETY OF THE RECEIVERS THROUGH
IMPROPER SERVICING.
TATA
RARA
FB
KB
KA
KA FC
PD
PD
DA DA
ES
CN2 CJ3
JPS1
JD
PS
CE
PA2
CN102
PL
CN3100
MA
MA
CN5 CN2
CN1
RB
RB
MB
MB
CJ3
LE
CE1
KC
PC
PC
CF
CD
PB
PB
EP
EP
BALLAST FAN
JF
JC
JA
LT
DT
JD
JB
JE
CD
CF
CE1
LL
JG
ATSC/NTSC TUNER
ATSC/NTSC TUNER
ATSC/NTSC TUNER
DMCORE
DMDPM7
DVI
MICRO MICRO
DVI
DMDCDC
RISER
RISER
RISER RISER
RISER
RISER
TVuP
VID-SW
TVuP
SERVICE TECHNICIAN WARNING;
PG 10....TERMINAL
PG 1.....BLOCK
PG 2.....POWER
PG 8.....MICRO3 [TV uP]
PG 9.....MICRO4 [HDMI]
PG 6.....MICRO1 [VID-SW]
PG 7.....MICRO2 [AUD-PIC]
PG 5.....FMT [MICRO]
PG 12....RISER1
PG 11....DEMOD
PG 14....E2P / FRONT / CONTROL / PREAMP
PG 4.....FMT [DVI]
PG 13....RISER2
PG 3.....INTERFACE
5
5
232425
2627
28
29
23 24 25 26 27 28 29
5
11
55
11
J8F01
ANT
PREAMP
CONTROL
RELAY
LAMP BALLAST
LAMP
FA
FA
FB FC
PWB-SW-LAMP
PWB
SW-FILTER
* NOTES
WD-62527 V28
WD-52528 V28+
WD-52527 V28
WD-62528 V28+
PAGE 1
CONTENTS
KD
LE AN
AN
TO AVOID POSSIBLE TO X-RADIATION TAKE RADIATION PROTECTIVE
MEASURE FOR PERSONNEL DURONG SERVICING.
THIS PRODUCT INCLUES CRITICAL ELECTRICAL AND MECHANICAL
PARTS ESSENTIAL FOR X-RADIATION PRORECTION
SEE SERVICE INSTRUCTION FOR SPECIFIED REPLACEMENT
PARTS AND SERVICE ADJUSTMENTS.
X-RADIATION PRECAUTION
ES1
L_OUT+
L_OUT-
R_OUT-
R_OUT+
L_SP
R_SP
3.3V-ENG-SCL
3.3V-ENG-SDA
Characteristic
(Only ceramic
capacitor)
PWB-TERMINALFRONTPWB-MICROPWB-RISERENGINEPWB-POWERPWB-FMTPWB-INTERFACEPWB-DMPWB-DEMOD1SHUTTER CNTRLE2PHAJEBKFCGID861 1224 9 14537 131110 15 16LMN17 18LAMP GND
340V
GND-1
5VSL
RMC
IR-IN
GND
LAMP-R
LED
LAMP-G
STATUS-R
STATUS-G
3.3VSL
MANRST
KSC0
GND
KSC1
LOUT(+)
LOUT(-)
ROUT(-)
ROUT(+)
GND
LAMPEN
LAMPLITZ
5VS
DM FAN
MD(LCD/DMD)_FAN
LAMP-FAN
LENS
TX1+
TX1-
TXC+
TX0+
TX2+
GND(5V&H/V-SYNC:AGND)
TXC-
3.3V_ENG_SCL(DLP)
TX0-
GND
5VSL
IR-IN
RMC
L
N
DMD
LAMP
PBS-FAN
GND
18V
3.3V
GND
18V
3.3V
3.3V
3.3V
GND
GND
5VS
5VS
18VS
18VS
GND
GND
GND
GND
18VF
LAMP-RELAY
GND
ENG-PWR-ON
340VDC
GND
NC
NC
NC
5VS
GND
LAMPEN
LAMPLITZ
18VS
18VS
5VS
GND
5VS
GND
GND
GND
FSTP-PBS(LCD)
FAN-VCC-LAMP
GND
GND
GND
COVER-DET
GND
FAN-VCC-PBS(LCD)
FILTER-DET
GND
LAMP-DET(V29)
LAMP-RST(V28)
GND(V28)
FSTP-MD(DLP/LCD)
GND
FAN-VCC-MD(DLP/LCD)
FSTP-LAMP
SENSOR-DET
GND
MD-TEMP
GND
GND
RMC
5VSL
IR-IN
KSC1
LAMP-G
KSCO
PWR-LED
STATUS-G
STATUS-R
LAMP-R
MAN-RST
3.3VSL
MOTOR-ST
MOTOR-SET
MOTOR-CLK
MOTOR-DAT
FSTP-DM
FAN-VCC
GND
ENG-SCL
GND
DDAN
GND
CLRN
GND
BUSYX
ENG-SDA
BUSYX
DDAN
ENG-SDA
GND
CLRN
ENG-SCL
GND
GND
LAMP-PROTECT
GND
IR-IN
KSCO
LAMP-R
PWR-LED
MAN-RST
LAMP-PROTECT
RMC
KSC1
STATUS-G
3.3VSL
5VSL
LAMP-G
STATUS-R
GND
DM-R
MAIN-Y
GND
GND
MAIN-H
GND
MAIN-Pr
MAIN-Pb
GND
MTU-R
GND
GND
12VS
MAIN-V
GND
ENC-R
AVR-R
GND
12VS
MN-R
STU-R
GND
DM-VID
ASIC-BANK
5VSL
3.3VSL
PWR-ON
CARD-DETECT
ASIC-MTOD
TV-Rxd
ASIC-DTOM
5VS
AC-OFF
DM-RESET
PWR-GOOD
TV-RTS
STBY
5VS
FMT-PGOOD
TV-CTS
LAMP-PROTECT
STBY-SHORT
TV-Txd
ASIC-CS
ASIC-CLK
TV-RESET
CARD-DETECT
GND
5VS
12VS
AVR-R
A15V
HDDFANPWR
TV-RESET
LAMP-PROTECT
STBY
GND
MAIN-Y
5VSL
GND
L-SPKR(-)
ASIC-MTOD
MTU-R
R-SPKR(+)
AC-OFF
MAIN-V
GND
-A15V
L-SPKR(-)
5VS
STBY-SHORT
DM-VID
GND
ASIC-CLK
3.3VSL
MAIN-Pr
A-GND
12VS
TV-Rxd
GND
DM-RESET
GND
HDDFAMSTP
FMT-PGOOD
MN-R
TV-Txd
HDD-TEMP
GND
PWR-ON
MAIN-Pb
A-GND
ASIC-DTOM
GND
GND
ENC-R
PWR-GOOD
A15V
-A15V
TV-CTS
STU-R
ASIC-CS
ASIC-BANK
MAIN-H
R-SPKR(+)
DM-R
TV-RTS
IN1-Y
CMP3-Pb
MN-R
GND
CMP3-Y
IN2-Y
IN3-V
5VS
MT-AVR
GND
GND
MTU-R
S1
GND
GND
CMP2-Pr
HDMI-R
GND
GND
GND
IN2-V
GND
GND
GND
GND
GND
MN-L
5V-T
DVI-SW
9V-T
HDMI-L
IN1-C
GND
GND
STU-L
GND
GND
CMP2-Y
S3
GND
DM-L
GMD
GND
GND
GND
AVR-R
IN3-Y
MT-MONA
5VSCL
MT-MONV
MTU-L
5VSDA
CMP1-Y
GND
IN3-C
GND
AVR-L
ENC-L
IN1-V
CMP2-Pb
MON-VID
STU-R
GND
GND
CMP1-Pb
S2
GND
GND
GND
GND
GND
GND
IN2-C
GND
ENC-R
GND
CMP3-Pr
GND
CMP1-Pr
DM-R
S2
CMP1-Pb
ENC-R
GND
AVR-L
GMD
GND
HDMI-L
GND
MN-L
IN1-V
CMP3-Pr
GND
GND
IN2-V
MTU-L
MN-R
IN2-Y
IN2-C
MON-VID
CMP1-Pr
GND
CMP3-Pb
CMP1-Y
IN1-Y
GND
GND
GND
9V-T
GND
5VSCL
IN3-Y
GND
GND
GND
HDMI-R
GND
CMP2-Pr
DM-R
MT-MONA
GND
CMP2-Pb
GND
IN3-C
GND
ENC-L
MT-MONV
DVI-SW
GND
GND
GND
GND
GND
S1
CMP3-Y
MTU-R
GND
GND
GND
STU-L
GND
GND
AVR-R
GND
GND
GND
IN1-C
S3
5VSDA
GND
DM-L
GND
5V-T
GND
MT-AVR
GND
5VS
STU-R
CMP2-Y
IN3-V
S3
GND
IN3-V
GND
IN3-Y
GND
IN3-C
GND
IN3-R
GND
IN3-L
IN3-L
IN3-C
IN3-V
GND
GND
GND
IN3-R
IN3-Y
S3
GND
GND
TX2-
GND
ENG-SDA
BALLAST-FAN-CONT
PBS/LAMP-FAN-CONT
LCD-FAN-EN
SENS-CL
GND
LCD-FAN-CONT
GND
SENS-OP
GND
ENG-SCL
18V-ON
CLRN
BUSYX
DDAN
LED
3.3VSL
KSC1
LAMP-G
MANRST
GND
STATUS-R
KSC0
LAMP-R
STATUS-G
GND
YOUT(4)
VOUT
GND
GND
YOUT(6)
GND
CBOUT(3)
GND
GND
HOUT
YOUT(3)
GND
CBOUT(2)
GND
CBOUT(6)
YOUT(0)
GND
YOUT(1)
YOUT(7)
CBOUT(5)
CROUT(6)
CROUT(0)
GND
3.3V
CROUT(7)
GND
CROUT(1)
3.3V
CROUT(4)
CROUT(3)
3.3V
CBOUT(0)
GND
GND
5V(DLP ONLY)
3.3V
GND
FMTCTS
GND
FMTRxD
GND
3.3V
3.3V-ENG-SCL
FMTTxD
GND
GND
5VS
BUSREQ
FMTRTS
GND
GND
GND
GND
FMTRST
FMT-PGOOD
GND
GND
PON-SHORT
GND
PON-SHORT
GND
5VSL
-15VS
+15VS
HDD-TEMP
12VS
A-GND
STBY-SHORT
MAIN-RELAY
HDDFANSTP
GND
PWR-ON
AC-OFF
HDDFANPWR
GND
STBY
5VR
HDD-RST
+15VS
A-GND
A-GND
A-GND
-15VS
+15VS
A-GND
A-GND
12VS
-15VS
A-GND
-15VS
5VSL
GND
PON-SHORT
PWR-ON
A-GND
5VR
STBY-SHORT
HDD-RST
STBY
HDDFANPWR
+15VS
HDD-TEMP
GND
GND
AC-OFF
MAIN-RELAY
HDDFANSTP
18V
GND
3.3V
LAMP-RELAY
GND
18V
ENG-PWR-ON
GND
18VF
3.3V (NC for V29~V31)
GND
18V
GND
18V
3.3V
GND
3.3V
3.3V
GND
3.3V
(NC for V29~V31)
(NC for V29~V31)
LAMP-EN
LAMP-RELAY
GND(BALLAST)
5VSB
GND(ENGINE)
ENG-PROTECT
FAN-DET
DIM(DLP)
ENG-PWR-ON
GND(POWER)
ENG-FAN-ON
3.3VSE
LAMP-LITZ
PBS/LAMP-FAN-CONT(DLP)
DLP-FAN-CONT(DLP)
MD-TEMP
MOTOR-DAT
BALLAST-FAN-CONT
GND
GND
BUSYX
MOTOR-CLK
PBS/LAMP-FAN-CONT
LCD/DLP-FAN-CONT
ENG-SCL
DDAN
MOTOR-SET
GND
LCD-FAN-EN
GND
18V-ON
MOTOR-ST
ENG-SDA
SENS-CL
SENS-OP
CLRN
GND
LAMP-TEMP
LAMP-DET(V28)
MOTOR-DAT
LED-CL
MOTOR-SET
MOTOR-ST
SENS-OP
SENS-CL
LED-OP
GND
3.3V
GND
MOTOR-CLK
GND
GND
18V
LED-OP
SENS-CL
SENS-OP
GND
LED-CL
DATA
SET
ST
CLK
GND
GND
3.3V
18V
GND
NC
-A15V
A15V
A-GND
R-SPKR(+)
L-SPKR(-)
R-SPKR(+)
A15V
A-GND
-A15V
NC
NC
L-SPKR(-)
KSCO
PIC-CTS
GND
GND
RELAY
GND
GND
MN-L
GND
LED
PIC-RTS
PIC-Txd
KSC1
RMC
GND
RS232-EN
MTU-V
PON-SHORT
SUB-V
GND
GND
SUB-Pb
GND
PIC-Rxd
LAMP-G
STU-V
LAMP-R
DM-L
ENC-L
GND
GND
SUB-Y
GND
GLINK-Txd
STAT-R
STAT-G
GND
STU-L
MAN-RST
MTU-L
AVR-L
GND
SUB-Pr
SUB-H
GND
IR-IN
GLINK-Rxd
LAMP-G
-A15V
HDD-TEMP
IR-IN
-A15V
GND
STAT-G
A15V
SUB-Pr
PIC-Rxd
A-GND
R-SPKR(+)
RELAY
A-GND
A-GND
GLINK-Rxd
KSCO
GND
LED
L-SPKR(-)
R-SPKR(+)
SUB-Pb
SUB-H
PIC-RTS
STU-V
GND
LAMP-R
KSC1
MAN-RST
A15V
A15V
GND
A15V
L-SPKR(-)
GND
MTU-V
A-GND
GND
SUB-V
SUB-Y
PIC-CTS
GND
AVR-L
-A15V
-A15V
R-SPKR(+)
RS232-EN
NC
GND
HDDFANPWR
GND
HDDFANSTP
PON-SHORT
STU-L
GLINK-Txd
DM-L
GND
RMC
NC
L-SPKR(-)
MN-L
NC
GND
L-SPKR(-)
GND
GND
MTU-L
PIC-Txd
GND
STAT-R
GND
ENC-L
R-SPKR(+)
STU-L
MAIN-Pb
3.3VS
GND
18VS
USBNA
GND
ASIC-CS
GND
PON-SHORT
USB5V
GND
PIC-Txd
PC-TXD
AVR-L
GND
ASIC-MTOD
TV-CTS
GND
GND
PWR-ON
MAIN-Pr
GND
MLINK-Txd
DM-L
GND
SUB-Pb
GOS-Rxd
PIC-RTS
GND
AVR-R
3.3V-ENG-SDA
ASIC-BANK
TV-RESET
CARD-DETECT
GND
MTU-V
5VS
GND
USBNB
TV-Rxd
STU-V
MAIN-V
GND
GND
NC
BUSREQ
MAN-RST
GND
GND
18VS
ENC-R
MTU-L
12VS
MN-R
USB5V
DM-R
STU-R
USBPA
PC-RXD
GND
GND
MAIN-H
GND
GND
MTU-R
3.3V-ENG-SCL
GND
PIC-Rxd
GND
SUB-Pr
ENC-L
GND
GND
GND
MLINK-Rxd
GND
GOS-Txd
SUB-Y
USBPB
RST-TVGOS
GND
GND
FMT-PGOOD
PIC-CTS
GND
GOS-CTS
18VS
GND
GND
18VS
MN-L
5VS
GND
GND
DM-RESET
18VS
GND
5V
STBY
GND
GOS-RTS
5VS
5VS
5VS
GND
HDD-RST
DM-VID
MAIN-Y
GND
GND
TV-RTS
SUB-V
GND
GND
TV-Txd
SUB-H
5VSL
AC-OFF
PWR-GOOD
(NC for V29~V31)
DIM
5VSB
DIM(DLP)
3.3VSE
MD-TEMP
GND(ENGINE)
LAMP-EN
ENG-PWR-ON
LAMP-LITZ
LAMP-RELAY
ENG-PROTECT
GND(POWER)
PBS/LAMP-FAN-CONT(DLP)
GND(BALLAST)
FAN-DET
ENG-FAN-ON
DLP-FAN-CONT(DLP)
FAN-VCC-BALAST
GND
FSTP-BALAST
DIM
PON-SHORT
MTU-L
DM-RESET
PC-TXD
DM-R
STBY
TV-CTS
GND
5VS
MAIN-Pr
GND
DM-VID
GND
PIC-Rxd
TV-RTS
GND
GND
TV-Txd
TV-RESET
GND
PWR-GOOD
5VS
RST-TVGOS
STU-V
PIC-CTS
3.3VS
NC
GND
GND
GND
5VS
USB5V
12VS
18VS
AVR-L
STU-R
GND
GND
GND
5VS
GND
MTU-R
MAIN-Y
SUB-Pb
GND
SUB-V
AVR-R
GND
SUB-H
CARD-DETECT
GOS-Txd
GND
GND
MAIN-V
GND
GND
BUSREQ
GND
ASIC-CS
18VS
GND
GND
MN-R
GND
GND
USBPA
GOS-RTS
GND
MAIN-H
GND
MLINK-Txd
3.3V-ENG-SCL
GND
GOS-Rxd
SUB-Pr
GND
3.3V-ENG-SDA
GND
5VSL
GND
SUB-Y
USBNB
GND
STU-L
GND
GOS-CTS
18VS
MAN-RST
18VS
GND
ENC-R
GND
PIC-Txd
USB5V
5V
ASIC-MTOD
PC-RXD
5VS
PWR-ON
GND
HDD-RST
DM-L
GND
GND
PIC-RTS
ENC-L
GND
ASIC-BANK
MLINK-Rxd
AC-OFF
MTU-V
USBPB
TV-Rxd
FMT-PGOOD
MAIN-Pb
GND
18VS
USBNA
GND
MN-L
BLP-ASIC-READY(DLP)
RESETZ-DVI(DLP)
POWERGOOD-DVI(DLP)
LAMPEN-DVI(DLP)
LAMPLIT-DVI(DLP)
YSOUT
GND
GND
GND
PCLK
GND
GND
3.3V
YOUT(5)
YOUT(2)
CBOUT(7)
CBOUT(4)
GND
CBOUT(1)
NC
CROUT(5)
CROUT(2)
3.3V-ENG-SDA
PC-RxD
PC-TxD
3.3V
GND
CRIN(2)
CBIN(0)
3.3V
NC
GND
GND
CBIN(2)
GND
YIN(0)
FMTRTS
CBIN(5)
GND
CRIN(0)
YIN(2)
FMTRST
CRIN(4)
PON-SHORT
GND
YIN(4)
GND
GND
CBIN(3)
HIN
GND
GND
GND
GND
CRIN(5)
CBIN(7)
GND
GND
AC-OFF
PC-TxD
PC-RxD
CRIN(3)
GND
GND
VIN
GND
GND
GND
GND
GND
YIN(3)
CBIN(6)
5VS
GND
YIN(1)
PCLK
CRIN(6)
GND
3.3V
GND
3.3V
CRIN(1)
GND
3.3V
CBIN(1)
5V(DLP ONLY)
GND
FMTCTS
YIN(6)
FMTRxD
GND
3.3V
GND
FMTTxD
YIN(5)
BUSREQ
GND
YSIN
YIN(7)
CBIN(4)
CRIN(7)
GND
NC
SCL_DVI(LCD)
SDA_DVI(LCD)
3.3V_ENG_SDA(DLP)
GND(LCD)
GND(LCD)
TEMP
TEMP
TX2_SHIELD(AGND)
TX1_SHIELD(AGND)
TX0_SHIELD(AGND)
TXC_SHIELD(AGND)
TX2+
BLP-ASIC-READY(DLP)
TX1+
3.3V_ENG_SCL(DLP)
TXC_SHIELD(AGND)
SDA_DOC_2(LCD)
LAMPLIT-DVI(DLP)
GND(5V&H/V-SYNC:AGND)
TX0_SHIELD(AGND)
RESETZ-DVI(DLP)
TX2-
TX0-
3.3V_ENG_SDA(DLP)
TX2_SHIELD(AGND)
POWERGOOD-DVI(DLP)
TX1-
TX0+
TXC-
TXC+
TX1_SHIELD(AGND)
SCL_DOC_2(LCD)
LAMPEN-DVI(DLP)
18V-ON (NC for V29~V31)
18V-ON (NC for V29~V31)
NC
PWR-ON
: Metal film resistor
Type
ALM
: Semiconductor Ceramic capacitor
: Non polarized electrolytic
capacitor
: Metalized polyester capacitor
5. RESITOR
: Ceramic capacitor chip
NP
S
Not indicated : F or B (high dielrctric percentage)
Wattage
Not indicated : 50V
W
: Electrolytic capacitor
: Polyester capacitor
SC
: Metal liner resistor
M=+/-20%
Tolerance
Not indicated
TANT
3. TP13.etc. show test points.
uF, for numbers less than 1
-20%
: Wire wound resistor
: Metal plate cement resistor
Value Not indicated
P=+100%
II
: Aluminus electrolytic capacitor
J = +/-5%
Not indicated = 1/10W
: Metal oxide film resistor(Type B)
MF
Not indicated = 1/4W or 1/6W
: Fixed composition resistor
MMF
Chips
: Polypropylene film capacitor
Not indicated
-10%
CH, SL, etc. : Temperature compensaing types
4. CAPACITOR
Not indicated
PS
I
Toler
ance
-0%
Z=+80%
chips
MP
: Twin film capacitor
CE
Not indicated = +/-5%
M
Dielectric
strength
: Carbon resistor
K=+/-10%
: Tantalum capacitor
K = 1,000 Ohm
D = +/-0.5%
PF, for numbers more than 1
: chip resistor
Value
Type
MF,PP
Not indicated = +/- 10%
: Metalized plastic film capacitor
M = 1,000,000 Ohm
: Cemented resistor
MPP
J=+/-5%
ML
PP
: Non polarized electrolytic
capacitor chip
D=+/-2PF
I
: Electrolytic capacitor
Q=+30%
: Polyester polypropylene film
capacitor
Parts except
for chips
NP
: Styrol capacitor
F=+/-1PF
MP
: Ceramic capacitor
II
C=+/-0.25PF
chips
G=+/-2%
F = +/-1%
-0%
2. Wave form were taken with standard color bar signal.
: Metalized paper
K = +/-10%
TAN
Not indicated
1. DC voltages were measured from points indicated to the circuit
6. This is a basic schematic diagram. Some sets may be subject
to modification according to engineering improvement
Parts
except
for
chips
ground with a high-Z voltmeter
Not indicated = Ohm
Parts
except
for
chips
No tolerance is indicated
for electrolytic capacitor
and +/- 20%
D=+/-0.5PF
T=+200%
TF
MB