Hitachi 28ld5000ta Service Manual

							21
28LD5200E (PW1L) 
No(low)
No red 
green/orange 
Yes(high) Ye s  
No 
Ye s  
Is the LED red or 
Is backlight lighting? green/orange? 
Picture is not displayed (LED is lighting)
Is the voltage of 
P802[5]pin on the Power  supply unit high? 
Is the voltage of 
EFP2[1][2]pins on the Formatter  PWB 12V? 
Is the voltage of 
P804[1][2][3][4]pin on the  Power supply unit 16V?   
Is it the power 
saving mode? 
Input signal Cable
or Formatter PWB
Ye s   No 
Inverter unit   No
Ye s [1] +5V
[3] +5V
Is Voltage applied 
to P804[1]pin of the Power  supply unit? 
Is Voltage applied 
to EJF1[3]pin of the  Joint PWB?  Power supply 
unit
No
Ye s Joint PWB  
Formatter PWB 
Power supply unit
Power supply unit
or
Formatter PWB
Power supply unit
No
Ye s
Formatter PWB or
Panel Module
 
Is the voltage of 
EFJ1[1]pin, EFJ2[1][2]pins applied 
to of the Formatter PWB?
 
 
EFJ1
[1] +10V EFJ2
[1] +6V
[2] +6V
No
Ye s
Power supply unit
Is the voltage of 
EFJ2[5][6][9][10]pins applied 
to of the Formatter  PWB?
 
 
EFJ2
[5] +3.3V   [9] +1.8V
[6] +3.3V [10] +1.8V
No
Ye s
Joint PWB
 
						

							22
28LD5200E (PW1L) 
6. Self-Diagnosis Function
       Signal circuit check mode: It indicates the check result on some points \
of the signal circuit and the history of them with On -Screen Display (OSD).
 
Signal circuit self-diagnosis function
This function is for the failure of the signal circuit, for example the \
phenomenon as below:
"Sometimes power turns off abnormally."  "Sometimes picture disappears abnormally."
To enter to this Self-Diagnosis mode, follow the next steps:
Preparation:
1)  The Power Cord should be connected to AC line and the Main Power switch should be turned on.
2)  Turn the power off by the SUB-POWER(
) button of the monitor or the remote control.
Procedure:
1) Press the SUB-POWER() button and   button on the bottom of the monitor at the same time, and keep it for m\
ore than 5 seconds after the power turned on.
2)  The monitor will be turned on, and it will display On-Screen Display of \
the Self-check result and the failure history as bel ow.
3)  Any operation would cancel the Self -Diagnosis mode.
4) 
The following table shows the OSD symbols and contents of failure PWB in\
 which failure most probably would be allocated according to the number of blinks.
Code  stored up in 
failure history  Self checking 
item  Problem   Phenomenon Cause
C10(*      No sync. (Snow noise)  OSD of “ ! Check Antenna ” 
appears. No connection of ANT cable 
Preset tuning is not yet 
H11
(*      Tuner problem  Cannot receive the main  signal from antenna Communication error of U101 
H15   Composite video SW IC  problem Cannot receive picture and 
audio 
Cannot change input mode  Communication error of I201 
H16      Component video SW IC  problem No component picture 
Cannot change input mode  Communication error of I202 
H31    Color demodulator IC  problem Abnormal color 
Dark picture  Communication error of I501 
H32      Sync. separator IC  problem Unsynchronized picture  Communication error of I601 
H33      3D Y/C separator IC  problem Abnormal color 
Dark picture / No picture  Communication error of I302 
H71
(*     T/Text IC problem  No T/Text  No picture Communication error of IT01 
H72
(*     Sound MPX IC problem  No sound from antenna  Cannot change MPX 
sound Communication error of IN01 
F63 
*
) This code is no meaning for the models except 32/42PD5000TA because tho\
se are without tuner circuit.  
I2C-bus latch problem  Cannot store setting data 
(Ex. Channel, Volume etc.)  SCL3/SDA3 latched up 
Latest error code 
Self Check 
H11: OK          H15: OK 
H16: OK          H31: OK 
H32: OK          H33: OK   
F63    F63    - - -    - - -    - - - 
Self check result area 
Failure history area 
Check result 
Check item  [OSD]
If you clear history of failure, make FACTORY RESET: enter the factory setting mode; press the SUB-POWER() 
button, INPUT SELECT(
) button and   button on the bottom of the monitor at the same time. And keep it for 
more than 5 seconds after the power turned on.
 
						

							 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
THE UPDATED PARTS LIST
FOR THIS MODEL IS  
AVAILABLE ON ESTA
23
 
						

							24
28LD5200E (PW1L) 
 
Speaker x2 
Main Power SW
Remote 
Control
AC100V -240V  
CPU
(Main)Formatter PWBOSC
16MHz
AudioProcessing
Audio Signal Processing 
Unit 
 TMDS
(RECEIVER) 
RGBHV (Digital)
 
Audio Signal
 LED PWB
Digital
Audio Amp
Noise
Filter
LV D S
Transmitter
Power Unit
(Main Power Circuit)
DVI Signal Power
Audio Power Supply
FC4 
CPU
(Sub)
D-SUB15P
VIDEO PWB
TACT SW PWB
AUDIO 
SELECTAUDIO  
AV 1 AV 1
 AV 2 AV 3 AV 4 
AV 2
AV 3
AV 4
VIDEO  VIDEO CROMA 
3D/3L COMB 
VIDEO 
SELECT
Tuner PWB
Tuner 
FE 
TELE TEXT
VIDEO OUT
Digital RGB 
Differential
signal
LCD Panel Module 
DAC
INVERTER 
Inverter Power Back light
 
8. Block diagram
Block diagram 1/2
 
						

							25
28LD5200E (PW1L)
Block diagram 2/2
 
						

							26
28LD5200E (PW1L)
EU Tuner Transfer BoardEU-ENG295244G 11
12
FE.MODE
FE.SAP
13
14 FE.ST
MSP.STATUSMSP.RESET15
GND
GND
GND
GND
SDA0
VIDEO.DET1
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
41
42
43TX.RESET
A+6V
STB+5V
A+10V
SCL0
DIP.DET
TUNER.DET1
TUNER.DET2
VIDEO.DET2
WSS
44
45
46
47
48
49
50
51
52
53
54
55 GND AV.LINK
V. F R E Q H.FREQ
GND
MCV.SYNCGND
SCV.SYNC
GND
MY
MPB
MPR
56
57
58
59
60
61
62
63
64
65 L
R
66
67
68
69
70 GND
GND
GND GND
MH
MV
GND
SY
SPR
SH SPB
GND
SV
GND
TV.POWER
11
12
FE.MODE
FE.SAP
13
14 FE.ST
MSP.STATUSMSP.RESET15
GND
GND
GND
GND
SDA0
VIDEO.DET1
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33TX.RESET
A+6V
STB+5V
A+10V
SCL0
DIP.DET
TUNER.DET1
TUNER.DET2
VIDEO.DET2
WSS
34
35
36
37
38
39
40
41
42
43
44
45 GND AV.LINK
V.FREQ H.FREQ
GND
MCV.SYNCGND
SCV.SYNC
GND
MY
MPB
MPR
46
47
48
49
50
51
52
53
54
55 L
R
56
57
58
59
60 GND
GND
GND GND
MH
MV
GND
SY
SPR
SH SPB
GND
SV
GND
TV.POWER
VIDEO
FE+30V1
SCL1
GND
2
3
4
5 GND
SDA1 FE+30V1
SCL1
GND
2
3
4
5 GND
SDA1
1
2
30V
GND
3
4 GND
5V 5V
5
GND
12V
GND
10V
6
7
8
9
10
11
12
13 GND
12V
GND
10V
1
2
30V
GND
3
4 GND
5V 5V
5
GND
12V
GND
10V
6
7
8
9
10
11
12
13 GND
12V
GND
10V JOINT
50
49GND
SCL0
48
47 SDA0
SCL1 GND
46
GND
MSP.RST
TV.AFC
FE..AGC.OUT
FE.MONO
WSS
45
44
43
42
41
40
SDA1
TEXT.RST
MSP.ST
FE.AGC.IN
FE.MODE
FE.SAP
FE.ST
FE.MUTE
MCV.SYNCSCV.SYNC
COMP.HD GND
GND COMP.VD
DIP.DET
FA N D E T
T. D E T 1
T. D E T 2
V.DET1
V.DET2
GND
AV-LINK
11
10 9
8
7
6
L
R
5
4
3
2
1 GND
GND
GND AC.CLOCK
AVC.PARITYGND
MH
MV
AVC.RXD
REM-PDP AVDET2
AVC.TXD
PDDET
SH
SV
MY
MCb
MCr GND
GND
GND
SY
SCb
SCr GND
GND
GND
1
2
3
4
5
6
7
8
9
10
11
12
EJP2
EVJ1EVJ1
EJF3
P808
EJF41
2
6V
6V
3
4 GND
3.3V GND
5
GND
1.8V
GND
6
7
8
9
10
11 3.3V
GND
1.8V
EFJ2EJF2
10V1
STB5V
Power go
TV-POWER
2
3
4
5
6
7
GND
GND
LEDOFF
EFJ1EJF1
10V1
STB5V
Power go
TV-POWER
2
3
4
5
6
7 GND
GND
LEDOFF
1
2 6V
6V
3
4 GND
3.3V GND
5
GND
1.8V
GND
6
7
8
9
10
11 3.3V
GND
1.8V
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
EFJ3
MY
MCb
MCr GND
GND
GND
SY
SCb
SCr GND
GND
GND
1
2
3
4
5
6
7
8
9
10
11
12
EFJ4 FORMAT
POWER
Inverter
1
2 GND
RXD
3
4 BUSY
VDD VPP
5
TXD
6
7
8 SCLK
CNVSS 1
2
3
4
5
6
7
8
EFG1EJF5
1
2 GND
S.TXD
3
4 S.RXD
+5V RES
5
MD2
6
7
8 FEW
FCK 1
2
3
4
5
6
7
8
EFG2EJF6
GND
TXD
RXD
+5V RES
MD2 FEW
FCK L
R
MUTE
AUDRST
SCL
1
2
3
4
5
6
7
8
9
GND
GND
SPRLY
AUDDET
SDA
EFA1 EAF1
1
2
3
4
5
6
7
8
9
10 L
R
MUTE
AUDRST
SCL GND
GND
SPRLY
AUDDET
SDA
AUDIO
1
2LCH+
LCH-
EAS1 PAS3
1
2LCH+
LCH-
2
3 RCH+
RCH-
EAS2 PAS4
2
3RCH+
RCH-
SPEAKER (L)
SPEAKER (R)
1NC
1
2
STB5V
REM
3
4 GND
LED2(G) LED1(R)
5
6 LEDOFF 1
2
3
4
5
6
EFL1 1
2
ADKEY1
ADKEY2
3
4 ADKEY3
GND 1
2
3
4
ECONT
EFK1
ADKEY1
ADKEY2
ADKEY3
GND
LED/REM KEY
CN-1 STB5V
REM
GND
LED2(G) LED1(R)
LEDOFF
20
19
18
17
16
15
14
13
12 30
29
28
27
26
25
24
23
22
21 39
38
37
36
35
34
33
32
31
10 1NC
1
2 GND
GND
3
4
+12V
+12V
5
6
EJA1
EAJ1
3
4
5
6 GND
GND
+12V
+12V
5V
LEDOFF
5V
LEDOFF
1
2
TV.AFC
6TV.AFC
6
FE.AGCO7 FE.AGCO 7
FE.AGCI8 FE.AGCI 8
FE.MUTE9 FE.MUTE 9
FE.MONO
10 FE.MONO10
L
R GND
GND
GND AC.CLOCK
AVC.PARITYGND
MH
MV
AVC.RXD
REM-PDP AVDET2
AVC.TXD
PDDET
SH
SV
RESET
99 GND
RXD
BUSY
VDD VPP
TXD SCLK
CNVSS
RESET GND
SCL0
SDA0
SCL1 GND
GND
MSP.RST
TV.AFC
FE..AGC.OUT
FE.MONO
WSS SDA1
TEXT.RST
MSP.ST
FE.AGC.IN
FE.MODE
FE.SAP
FE.ST
FE.MUTE
MCV.SYNCSCV.SYNC
COMP.HD GND
GND COMP.VD
DIP.DET
FA N D E T
T.DET1
T.DET2
V.DET1
V.DET2
GND
AV-LINK
1
2
3
PCL1
STB5V
AC.CLOCK
GND
31
32
33 RXD
34
35
36
37
38
39
40 Vpp BUSY
TXD SCLK
CNVSS
RESET
AVC.PARITYAVDET2
AVC.RXD 31
32
33
34
35
36
37
38
39
40 AVC.RXD
71
72
73
74
75 +5V
MD2
76
77
78
79
80 RES
FEW
FCK REM-PDP AVC.TXD
PDDET
S.TXD
S.RXD 51
52
53
54
55
56
57
58
59
60 41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80 31
32
33
RXD
34
35
36
37
38
39 Vpp BUSY
TXD SCLK
CNVSS
RESETAVC.PARITYAVDET2
71
72
73
74
75 +5V
MD2
76
77
78
79
80 RES
FEW
FCK REM-PDP AVC.TXD
PDDET
S.TXD
S.RXD EPM1 CN1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
5
6
Power Off
GND
7
8 GND
6V 6V
9
5
6
Power Off
GND
7
8 GND
6V 6V
9 EJP1
P804
1 STB 5V
2
3GND
GND Power go
4
1 STB 5V
2
3
GND
GND Power go
4 12V1
GND
GND
2
3
4
5 12V
GND
EFP2
ON/OFF
1
GND
2
3
4 VA D J
GND
EFP1
12V1
GND
GND
2
3
4
5 12V
GND
P806
ON/OFF
1
GND
2
3
4 VADJ
GND
P805
PANELCN-1
S12B-PH-SM
1
2 Vcc 16V
Vcc 16V
3
4 Vcc 16V
ON/OFF Vcc 16V
5
GND
GND
6
7
8
9
10 GND
VA D J
GND
GND
11
12 GND
CN-1
1
2 Vcc 16V
Vcc 16V
3
4 Vcc 16V
ON/OFF Vcc 16V
5
GND
GND
6
7
8
9
10 GND
VA D J
GND
GND
11
12 GND
CN-1
S12B-PH-SM
1
2 Vcc 16V
Vcc 16V
3
4 Vcc 16V
ON/OFF Vcc 16V
5
GND
GND
6
7
8
9
10 GND
VADJ
GND
GND
11
12 GND
P802
1
2 Vcc 16V
Vcc 16V
3
4 Vcc 16V
ON/OFF Vcc 16V
5
GND
GND
6
7
8
9
10 GND
VADJ
GND
GND
11
12 GND
GND
RA- GND
GND
RB+
RC-
GND
RCLK+
GND RA+
RB-
GND
RC+
RCLK-
GND
RD-
RD+
CTL 12V
12V
1
2
3
4
CN4-1
GND
Va u x
NC
395V
DC
SUB POWER
1
2
3
4
CN-4
GND
Va u x
NC
395V
DC
1
2
3
CN5-1
AC(L)
NC
AC(N) 1
2
3
CN-5
AC(L)
NC
AC(N)
1
2
CN6-1
STB5V
GND 1
2
CN-6
STB5V
GND
11
12 GND
TV.CV
13
14 GND
GNDTV.L
15
GND
GND
FE. AGCI
FE. MONO
FE. SAP
MSP.STATUS
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
41
42
43TV.R
TV.AFC
FE. AGCO
FE. MUTE
FE. MODE
GND
MSP.RESET
GND
TX.RESET
44
45
46
47
48
49
50
51
52
53
54
55SVD(15kHz) SHV(15kHz)SCCD. BLKGND
SCCD. R
SCCD. G
SCCD. B
SCCD. SW
SCV(CCD)
GND
SY(CCD)
TUNER. DET1
56
57
58
59TUNER. DET2SCL1
SDA1
GND
SCL0
SDA0 3D+3.3V1
3D+3.3V
A+6V
2
3
4
5 A+9V
A+9V
GND6
FE+30V7
GND8
GND9
GND10
31
32
33
MHD(15kHz)
34
35
36
37
38
39
40 GNDMVD(15kHz)
MCCD/TX. GMCCD/TX. B
MCCD/TX. R
MCCD/TX. BLKGNDMCV/Y(CCD/TX)GND
60 GND
11
12
GND
TV.CV
13
14 GND
GNDTV.L
15
GND
GND
FE. AGCI
FE. MONO
FE. SAP
MSP.STATUS
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
41
42
43TV.R
TV.AFC
FE. AGCO
FE. MUTE
FE. MODE
GND
MSP.RESET
GND
TX.RESET
44
45
46
47
48
49
50
51
52
53
54
55SVD(15kHz) SHV(15kHz)SCCD. BLKGND
SCCD. R
SCCD. G
SCCD. B
SCCD. SW
SCV(CCD)
GND
SY(CCD)
TUNER. DET1
56
57
58
59TUNER. DET2SCL1
SDA1
GND
SCL0
SDA0 3D+3.3V1
3D+3.3V
A+6V
2
3
4
5 A+9V
A+9V
GND
6
FE+30V7
GND
8
GND
9
GND
10
31
32
33
MHD(15kHz)
34
35
36
37
38
39
40 GNDMVD(15kHz)
MCCD/TX. GMCCD/TX. B
MCCD/TX. R
MCCD/TX. BLKGNDMCV/Y(CCD/TX)GND
60 GND
TUNER
11
12 GND
GND AGC
1
GND
SDA
2
3
4
5 GND
SCL
CN1
GND
6
V-supply+5V7
GND
8
BTL+30V9
GND
10
11
12 GND
GND AGC
1
GND
SDA
2
3
4
5 GND
SCL
CN1
GND
6V-supply+5V7
GND
8
BTL+30V9
GND
10
11
12
GAME-MODEGND
13
14 GND
GND GND
15 BV+5V1
GND
AGC-OUT
2
3
4
5
AUDIO-OUTAFT
CN2
VIDE-OUT6
AGC-CONT7SW1
8
SW2
9
SIF-OUT10
11
12
GAME-MODEGND
13
14 GND
GND GND
15 BV+5V1
GND
AGC-OUT
2
3
4
5
AUDIO-OUTAFT
CN2
VIDE-OUT6
AGC-CONT7SW1
8
SW2
9
SIF-OUT10
11
12NC
IF 1 NC1
TU(NC)
SCL(IF)
2
3
4
5 AGC
ADR
CN1
SDA(IF)6
NC7
+5V8
NC9
+30V10
11
12 NC
NC IF OUT1
NC
AFT OUT
2
3
4
5 +5V
GND
CN2
RF AGC6
VIDEO OUT7SDA(TUNER)8SCL(TUNER)9SIF OUT10
11
12
NC
IF 1 NC1
TU(NC)
SCL(IF)
2
3
4
5 AGC
ADR
CN1
SDA(IF)6
NC7
+5V8
NC9
+30V10
11
12 NC
NC IF OUT1
NC
AFT OUT
2
3
4
5 +5V
GND
CN2
RF AGC6VIDEO OUT7SDA(TUNER)8SCL(TUNER)9SIF OUT10
ASIA Tuner Transfer BoardASIA-ENG39616G
16 12V
17 12V
13 GND
14 GND2RA-
3RA+
1GND
4RB-
5RB+
6GND
7RC-
8RC+
19 GND
9RCLK-
10 RCLK+
26 GND
11 RD-
12 RD+
31 GND
20 CTL
15 NC
18 NC
21 NC
22 NC
23 NC
24 NC
25 NC
27 NC
28 NC
29 NC
30 NC
9. Connection diagram
 
						

							27
28LD5200E (PW1L)
EAS1
TO SP (Right)
EAS2 EJF1
P901 P903 CN1
INVERTER UNIT
AUDIO board
FORMATTER board JOINT board
POWER board
LED board
POWER SW
INLET board
SUB POWER boardECONT
EJA1EJF2
CN4
CN5
SW902 CN5-1
CN6-1
CN1
EAF1EJP1
EJF4 EJF6 EJF5
EJF3A
EFJ3
EFJ2 EFJ1
EFP1
EFP2 EFJ4 EFA1 EFL1 EFK1 EFG1 EFG2
EPM1 EJP2
P802
P803 P804
P806 P808 P804CN6
EAJ1
To Panel
CN2
CN4-1
SW901
86
86
34
31
33
86
21
22
25
37
86
3830
24
23
27
26
29
32
10. Wiring diagram
 
						

							28
28LD5200E (PW1L)
The codes in brackets shown in the wiring diagram express the name of ma\
terials. 
The key to the codes and materials is shown on the table below.CodeABS
PC
Material
ACRYLONITRILE BUTADIENE STYRENE POLYCARBONATE


































#$5 
2%

#$5
11. Disassembly diagram
 
						

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