When the STBY LED does not flash, the power supply circuit is defective.
2. How to find PDP unit trouble
1) The power must be supplied normally to the PDP unit.
This power is supplied through two black 8-pin
connectors from the power unit. The kinds of power
supply are 160 V line, 60 V line, and 5 V line.
PFM-42B1, PFM-42B1E
2) As input signals, H.SYNC (negative polarity), V.SYNC
(negative polarity), BLANKING (negative polarity),
CLOCK and RGB digital data (8 bit x 3) must be
entered normally and DISPEN must be “high”.
If no images appears through the above conditions are
satisfied, the PDP unit will be defective.
4-1
4-2.Self Diagnosis Function
4-2-1. Outline
The PFM-42B1/B1E has the self diagnosis function using
A/D converter to detect the power supply analog voltages,
8 channels of temperature sensor, fan operations, power
unit temperature, DC voltage status, and to check the
EEPROM and the watch register. When any abnormality
occurs or defect is detected, the standby indicator on the
control panel flashes and the detected data is displayed on
the service menu [STATUS/TEST] block. If the abnormal
status exceeds the allowable limit, the PFM-42B1/B1E is
forced to shut down.
The detection items are shown as follows.
1. Increase and decrease of the panel DC voltage Vs is
detected.
2. Increase and decrease of the panel DC voltage Va is
detected.
3. Increase of temperature at the I/O block on top of the
panel is detected. Shut down of machine.
4. Increase of temperature at the center in the top of the
panel is detected. Shut down of machine.
5. Increase of temperature at the DC-DC converter on top
of the panel is detected. Shut down of machine.
6. Temperature at the left side of the panel is detected.
7. Detection of fan stop and that of drive circuit failure.
* Two fans at the bottom of the panel and the four fans
for power supply circuit. One fan in the I/O block.
8. Detection of temperature rise in the power supply
block.
9. Shut down when the 5 V for internal digital circuit has
abnormality.
10. Detection of failure of the EEPROM.
11. Detection of abnormality in communication with scan
converter.
12. Detection of failure in the ON/OFF control of power
supply.
13. Detection of decreased backup power supply voltage
for watch and detection of abnormality in oscillator.
14. Detection of PDP failure using the combination of the
voltage detection and shut down of the machine.
4-2-2. Criteria for Judgment of Abnormality
1.
Increase and decrease of the panel DC voltage Vs is detected.
(Name of this function on the service menu :
POWER SUPPLY - PDP VS)
The normal operating range is + 160 V + 24 V/_ 22 V.
Warning of increase of the voltage Vs when 184 V or
more.
Warning of decrease of the voltage Vs when 138 V or
less.
2.
Increase and decrease of the panel DC voltage Va is detected.
(Name of this function on the service menu :
POWER SUPPLY - PDP VA)
The normal operating range is + 60 V + 15 V/_ 14 V.
Warning of increase of the voltage Va when 75 V or
more.
Warning of decrease of the voltage Va when 46 V or
less.
3. Increase of temperature at the top of the I/O block
the top of the panel is detected and shut down of the
machine.
(Name of this function on the service menu :
TEMPERATURE - I/O BLOCK TOP)
The normal operating range is up to 79 °C.
Warning of high temperature when 80 °C or higher.
Shut down at the temperature of 85 °C or higher .
4. Increase of temperature at the center in the top of the
panel is detected and shut down of the machine.
(Name of this function on the service menu :
TEMPERATURE - CENTER)
The normal operating range is up to 74 °C.
Warning of high temperature when 75 °C or higher.
Shut down at the temperature of 80 °C or higher .
5. Increase of temperature at the rear of the PDP and DCDC converter block is detected.
(Name of this function on the service menu :
TEMPERATURE - DD CON TOP)
The normal operating range is up to 84 °C.
Warning of high temperature when 85 °C or higher .
Shut down at the temperature of 90 °C or higher.
in
4-2
PFM-42B1, PFM-42B1E
6. Detection of at the left side of panel temperature
(Name of this function on the service menu :
TEMPERATURE - PANEL SIDE)
Occurrence of abnormality and fault is judged solely
from the internal temperature of the PFM-42B1/B1E.
Measurement of the ambient temperature aims mainly
at the confirmation of the operating environment.
Therefore, there is no chance to indicate this warning
message.
Warning of high temperature at 85 °C or higher.
7. Detection of fan stop and that of drive circuit failure.
. Detection if fan is stopped or not.
(Name of this function on the service menu : FAN)
Status of the respective fans are displayed as OK or
NG on the service menu STATUS.
FAN
DRIVE CIRCUIT
• B BOARD
• P/S BLOCK TOP
• P/S BLOCK MID
• P/S BLOCK LOW L
• P/S BLOCK LOW R
• DD CON SIDE
• I/O BLOCK SIDE
: OK
: OK
: OK
: OK
: OK
: OK
: OK
: OK
. Detection of fan drive circuit failure
(Name of this function on the service menu :
FAN - DRIVE CIRCUIT)
The warning when the fan drive data is 6 V or more
and the actual drive voltage is 2 V or less :
warning
8. Detection of temperature rise in the power supply block.
(Name of this function on the service menu :
TEMPERATURE - P/S INTERNAL)
Warning of high temperature when temperature of the
heat sink for main converter inside the power supply
unit exceeds the allowable limit :warning
WARNING at 90 °C
Shut-down at 95 °C
9. Shut down when the 5 V for internal digital circuit has
abnormality.
(Name of this function on the service menu :
POWER SUPPLY - DIGITAL 5V)
The voltage that is input to pin-62 of the system
controller (IC252) is detected.
Shut down when there is no input voltage :
10. Detection of failure of the EEPROM.
(Name of this function on the service menu : OTHERS)
Warning when communication with EEPROM cannot
be performed normally.
. EEPROM ID code error :EEP ROM ID
. EEPROM data write error :EEP ROM SAVE
. EEPROM data read error :EEP ROM LOAD
. EEPROM failure :EEP ROM ACK
11. Detection of abnormality in communication with scan
converter.
(Name of this function on the service menu : OTHERS)
Warning when communication with scan converter
cannot be performed normally.
PW164ACK
12. Detection of failure in the ON/OFF control of power
supply.
(Name of this function on the service menu : Nil)
When the digital 5 V power does not decrease even in
the STBY state, the machine enters the POWER ON
state automatically.
13. Detection of decreased voltage of the backup power
supply for watch and detection of abnormality of
oscillator.
(Name of this function on the service menu : OTHERS)
Normal/abnormal is detected from the register value
inside the watch IC.
. Initialization of time due to abnormal register value :
RTC INITIALIZE
. Warning of low voltage of backup power supply :
RTC BATTERY
. Warning that crystal oscillator for watch has stopped :
RTC XTAL
14. Detection of PDP failure.
(Name of this function on the service menu : Nil)
PDP is suspected to be defective when DIGITAL 5 V
is normal among the voltages (VS, VA, DIGITAL 5
V) required to drive PDP while both VS and VA are
not inputted.
When all the following conditions are satisfied, the
machine enters once to the STANDBY mode then turn
the main power back on again.
1) DC 180 V power is 40 V or less.
2) DC 70 V power is 20 V or less.
3) DIGITAL 5 V is normal.
The above-described operation is repeated three times.
If the above three conditions are still satisfied, the PDP
is judged to be faulty and the main power is shut
down.
DMP_RX
DMP_CLK
GND
V
GND
H
GND
B
GND
G
GND
R
GND
SDA
SCL
GND
RGB3
CONT2
CONT1
GND
Q-SENSE
GND
AUDIO_R
GND
AUDIO_L
GND
C
GND
Y
GND
VIDEO
4
5
29V
SIRCS OUT
SIRCS IN
13.5V
GND
D5V
OP_CS
STBY5V
DMP_RX
DMP_TX
GND
DMP_CLK
GND
V
GND
H
GND
B
GND
G
GND
R
SCL
SDA
RGB3
GND
CONT1
CONT2
Q-SENSE
GND
AUDIO_R
GND
AUDIO_L
GND
C
GND
Y
GND
VIDEO
GND
RX
NC
TX
VIDEO
GND
NC
GND
Y
GND
C
GND
AUDIO_L
GND
AUDIO_R
GND
Q-SENSE
CONT2
CONT1
GND
RGB3
SDA
SCL
R
GND
G
GND
B
GND
H
GND
V
GND
DMP_CLK
GND
DMP_TX
DMP_RX
STBY5V
OP_CS
D5V
OP_DET
13.5V
SIRCS IN
SIRCS OUT
29V
29V
TO P1.6.9
13V
SIRCS2
OP_CS
TO P5
DMP_TX
DMP_RX
DMP_CLK
SDA
TO P5.7.8
SCL
TO P5.7.8
RGB3
TO P5
OP_CTL2
OP_CTL1
OP_SENS
A.MUTE
RGB1/RGB2
VIDEO/RGB
H/HV
TO P2
V
TO P2
232C_MOSI
232C_MISO
SIRCS1
RGB-H
TO P5
QB BOARD CN9501
TO QA BOARD CN9501 or
TO P6
TO P5
TO P2.5.13
TO P5.13
TO P2.5.13
TO P5
TO P5
TO P5
TO P5
TO P5
TO P5
TO P5
TO P5
TO P5
1
2
3
4
5
PFM42B1, PFM-42B1E
8-7
8-7
ABCDEFGH
B (2/13)B (2/13)
5V-3
R292
R293
2.2k
47
:CHIP
:CHIP
Q102
R291
100
TO P2
1
2
3
4
TO P5
TO P1
TO P1TO P1
TO P1
TO P1
TO P1.3
TO P1
TO P1
TO P1
S.SEP_BIAS
SYNC_SEL
SOG
VIDEO
C.OUT1
Y.OUT1
R.OUT
G.OUT
B.OUT
H/HV
TO P1
V
VIDEO
IC100
SN74LV4053ANSR
SW
1
Y1
2.9
2345678
Y0
2.4
Z1
2.0
Z
2.0
Z0
ENA
SEL.X
GND
SEL.Y
GND
SEL.Z
C
VCC
+5V
2.8
Y
0
X
X1
3.0
X0
/0
1
/0
1
10 11 12 13 14 15 16
9
/0
1
C100
0.1
B:CHIP
Y
R
G
B
R1005
33k
VIDEO
:RN-CP
R1004
18k
:RN-CP
R1003
33k
:RN-CP
C
R1002
18k
:RN-CP
R1001
33k
:RN-CP
Y
R1000
18k
:RN-CP
D1002
MA157-TX
C1003
C1001
0.1
6p
C1000
12p
25V
B:CHIP
C1002
16V
:RN-CP
R-Y
C1007
0.1
25V
B:CHIP
Y
C1005
0.1
25V
B:CHIP
C1004
B-Y
47
D1001
MA157-TX
MA157-TX
47 16V :RN-CP
B-Y
R
G
B
CH:CHIP
C1006
47 16V :RN-CP
CH:CHIP
A5V
2.5
1.9
2.5
1.9
Q1001
2SA1037AK
R1006
1.8k
:CHIP
2.4
1.8
A5V
R-Y
D1000
C1010
47
16V
C1008
16V
5V-3
C1016
50V
R1008
1k
:CHIP
Q1002
2SA1037AK
R1007
3.3k
:CHIP
BUFF
Q1000
2SA1037AK
BUFF
5V-3
C1009
47
16V
R1
G1
B1
47
1
BUFF
2SA1037AK
C1014
0.1
25V
B:CHIP
C1013
47
16V
Y
C1011
0.1 25V B:CHIP
5
:CHIP
C101
0.1
R101
B:CHIP
470
:CHIP
B:CHIP
R105
18k
:RN-CH
0.7
C103
0.01
B:CHIP
R103
18k
:RN-CH
0.7
C102
0.01
B:CHIP
R100
4.7 10V B:CHIP
470 :CHIP
IC1002
SN74LV4053ANSR
C1015
0.01
B:CHIP
1
Y1
2.52.4
2345678
2.5
Z1
2.5
Z
2.5
Z0
INH
VEE
GND
VIDEO
1k
C1017
0.1
25V
B:CHIP
47
16V
1.92.0
R1011
18k
:RN-CP
IC1001
CXA1211M
AMP
1
2 3 4
2.6
3.3
C1019
0.1
25V
B:CHIP
R1010
:RN-CP
R1012
470
:CHIP
2.0
C1020
0.1
25V
B:CHIP
R1308
:RN-CP
R1009
:CHIP
2.5
Q1003
BUFF
C1018
5678
IC1000
CXA1211M
AMP
1
2 3 4
2.6
2.0
2.9
C1012
0.1
25V
B:CHIP
2.6
2SA1037AK
BUFF
2200p
0
B:CHIP
C105
4.7
10V
2SC2412K-T-146
C107
4.7
0.4
10V
B:CHIP
D100
DAN202K
Q100
2SC2412K-T-146
BUFF
C106
4.7
10V
B:CHIP
0.4
D103
DAN202K
C104
C1022
VCC
YY0
X
X1
X0
A
B
C
C1021
47
16V
B:CHIP
2.4
2.4
0
12 13 14 15 16
4.9
11
10
9
SW
33k
5678
MA111
D1003
R1013
1.8k
:CHIP
6.8k
R1313
6.8k
:RN-CP
R1306
4.7k
:RN-CP
R1309
R1311
4.7k
:RN-CP
C108
4.7
C318
50V
R106
R295
150k
10k
:RN-CP
:RN-CP
Q104
2SC2412K-T-146
R294
8.2k
Q101
BUFF
0.1
25V
C
Y
:RN-CP
0.1
B:CHIP
Q1006
2SC2412K-T-146
AMP
4.2
R1017
100
2.4
:CHIP
R1022
1k
:RN-CP
R1014
6.8k
:CHIP
C1023
R1021
0.1 25V B:CHIP
1k
:CHIP
4.2
AMP
2.4
Q1005
R1016
100
:CHIP
2SC2412K-T-146
R1020
1k
:RN-CP
R1019
1k
:CHIP
Q1004
2SC2412K-T-146
AMP
R1015
100
2.5
:CHIP
R1305
6.8k
:RN-CP
4.7k :RN-CP
Y
R1018
1k
:RN-CP
1.9
Q103
2SC2412K-T-146
R297
1k
:CHIP
0
3.1
0
0
C317
0.1
0.1
25V
C110C109
10
50V
B:CHIP
Q1009
AMP
4.8
R1029
100 :CHIP
1k
2.8
2.2
C1263
47p
330
Q1008
2SA1037AK
AMP
2.8
47p
2.3
R1031
680
:CHIP
AMP
4.8
Q1007
2SA1037AK
3.1
47p
2SC2412K-T-146
R1030
680
:CHIP
A5V
5V-3
1.8
VCC
Y1
1
1.8
2.0
R296
C111
0.1
R1032
680
:CHIP
2.4
1.5
Y
SN74LV4053ANSR
Y0
2 3 4 5 6 7 8
1.8
B:CHIP
2SA1037AK
R1023
1k
:CHIP
R1028
:RN-CP
1.8
CH:CHIP
R437
:CHIP
R1027
100
:CHIP
4.8
R1026
1k
:RN-CP
C1264
1.8
CH:CHIP
R438
330
:CHIP
R1025
100
:CHIP
4.2
R1024
1k
:RN-CP
C1265
CH:CHIP
R439
330
:CHIP
C1024
4.7
35V
B-Y
R-Y
78
82k :RN-CP
3.1
2.3
0.7
2.3
0.9
BUFF
Q1012
R1036
2SC2412K-T-146
100
:CHIP
BUFF
R1034
Q1011
22 :CHIP
2SC2412K-T-146
C1025
47
C1261
16V
B:CHIP
R1033
22 :CHIP
Q1010
BUFF
6
2.0
1.5
1213141516
X
A
X1
X0
IC1003
SW
Z1
Z
Z0
INH
2.0
1.8
STBY5V
5V
C113
47
16V
1
H.STATE
23456789
V.STATE
CLAMPSW
GREENIN
GND
C/H
C/H DET
V IN
V DET
VTIMING
10
GATESW
2
0.1 25V B:CHIP
C1026
0.1
25V
4.9
B
VEE
VS/S OUT
IC101
M52347
SYNC SEP
2.3
COM
1
IC1004
2.42.4
TC4W53FU
COM
1
IC1044
TC4W53FU
R1035
6.8k
:CHIP
91011
C
GND
A5V
C114
0.1
B:CHIP
CLAMP
TIMING
V.POL
H.POL
CLAMP
VCC
VS/S IN
R1037
6.8k
:CHIP
CHO
CHI
2 3 4
SW
2.42.4
CHO
CHI
2 3 4
SW
HD
HD
VD
2.2
5678
5678
FB101
0UH
20
2.9
4.9
4.9
0.4
4.8
0.3
12 13 14 15 16 17 18 19
0.4
11
0.5
1
3
0
R108
4.3k
:RN-CP
A5V
R107
82k
:RN-CP
CH:CHIP
C1030
0.1 25V B:CHIP
Q1013
DTC144EKA
SW
C1262
0.1
25V
B:CHIP
C116
220p
CH:CHIP
5
4
C115
100p
C1028
B:CHIP
0
R1041
:RN-CP
2SA1037AK
Q1015
DTC144EKA
R109
0.1
25V
C1031
10
50V
R1043
2.2k
:CHIP
22k
R1040
1.8k
:RN-CP
R1038
1.3
C1032
Q1014
BUFF
SW
R110
2.2k
:RN-CP
2.2k :RN-CP
R112
47
:CHIP
C1027
R1039
2.2k :RN-CP
10
50V
D1004
MA111
R111
2.2k
:RN-CP
C1029
47 16V :RN-CP
47 16V :RN-CP
A5V
5V-3
C1034
47
16V
C1036
0.1
25V
B:CHIP
4.9
R1045
100k :CHIP
2.2k :CHIP
2SA1037AK
0.7
AMP
R1044
4.7k
:CHIP
04.9
R290
1k
:RN-CP
TH100
2.6
C1033
0.1
25V
B:CHIP
R1047
:RN-CP
4.8
Q1016
R1046
5.6k :RN-CP
0
4.8
CH:CHIP
CXA1211M
1
4.7k
R1048
11k
:RN-CP
C1035
0.1
25V
B:CHIP
Q1017
DTC144EKA
SW
1
IC223
TC7S04FU
23
INV
C1271
22p
5678
IC1005
AMP
2 3 4
C1038
2.9
2.0
100
C1037
16V
1
10V
B:CHIP
R1051
1k
:RN-CP
4.8
R1049
2.7k :RN-CP
Q1018
AMP
R1052
220
:RN-CP
0.6
R1050
1k
:RN-CP
1.2
2SC2412K-T-146
5.0
0.1
45
A5V
5V-3
R515
180
:CHIP
C501
0.1
B:CHIP
C502
100
16V
C503
B:CHIP
R1058
2.7k
:RN-CP
0
R1057
3.3k
C560
:RN-CP
18p CH:CHIP
R1054
1k
C1039
:RN-CP
0.1
25V
3.7
B:CHIP
1.4
C320
0.7
1
R1053
50V
1k
:RN-CP
Q1019
2SC2412K-T-146
0.7
R1056
1.1k
AMP
:RN-CP
B(2/13)
VIDEO,RGB,Y/C
1.5
2.4
2.1
1.5
2.4
2.4
10
A06
A07
A08
A09
A10
VREFH
IC501
M62352GP
D/A
VCC
A11
A12DOLD
11 12 13 14 15 16 17 18 19 20
0
0.1
CLKDIA01
0
0
5.0
5.1
C
Q1021
2SC2412K-T-146
CP
Q1022
2SC2412K-T-146
BUFF
2.1
R1055
10k
:CHIP
2SC2412K-T-146
0.1
R1063
:RN-CP
R1062
1k
:CHIP
1.4
Q1023
R1060
2SC2412K-T-146
470
:RN-CP
BUFF
Q1020
AMP
R1059
1.2k
:RN-CP
B:CHIP
AMP
2.4
A04
A05
0
Y
150
4.94.9
R1066
4.7k
:RN-CP
C1040
0.1
25V
2.4
23456789
A03
A02
0
VIDEO
R1064
:RN-CP
1.4
1
100
VREFL
VCC
Q1024
2SA1037AK
BUFF
4.3
R1065
2.7k
:RN-CP
V_POL
H_POL
SYS_HS
CLAMP
SYS_VS
B-Y_GAIN
R-Y_GAIN
Y_GAIN
SHP
HUE
COL
BRT
PIC
DAC1_CS
CP.P
S.SEP_BIAS
DMP_TX
DMP_CLK
C.OUT
Y.OUT
V.OUT
Y.SW
SYNC
CP
Y1
1.5
PICAGC.SW
YUV/VIDEO
S1
SECAM.C
R-Y1
B-Y1
B-Y
R-Y
Y_GAIN
B-Y_GAIN
R-Y_GAIN
TO P5
TO P5
TO P1.3.5
TO P3
TO P3.5
B CUT OFF
R CUT OFF
TO P2
TO P2
TO P2
TO P9
TO P9
TO P1.9
TO P9
TO P9
TO P5
TO P1
TO P2
TO P1.5.13
TO P1.5.13
TO P8
TO P8
TO P7.8
TO P5
TO P12
TO P9.10.11.12
TO P9
TO P5
TO P5.12
TO P8
TO P8
TO P9
TO P9
TO P12
Y
TO P12
TO P12
TO P2
TO P2
TO P2
RGB1
TO P3
TO P9
TO P9
B-SS9704-B-J-P2
8-8
8-8
PFM42B1, PFM-42B1E
ABCDEFGH
R207
0
:CHIP
B (3/13)B (3/13)
TO P11
VFLD
DRC
1
TO P13
D3.3V
3.3V-2
TO P5
TO P2
TO P4
TO P4
AD-PDWN
RGB1
PW_SDA
PW_SCL
R1
R282
G1
B1
R284
75
:RN-CP
C315
68p
CH:CHIP
:RN-CP75
C313
68p
CH:CHIP
R283
150
:RN-CP
C314
68p
CH:CHIP
C201
0.01
B:CHIP
C200
2.2
10V
B:CHIP
C203
2.2
10V
B:CHIP
C202
2.2
10V
B:CHIP
C204
B:CHIP
0.1
R240
R205
R204
:CHIP3.3k
R206
C205
22
35V
R
L200
2.2µH
C211
0.1
B:CHIP
C210
0.01
B:CHIP
C209
0.1
B:CHIP
G
C208
0.01
B:CHIP
C207
0.1
B:CHIP
B
FB200
0UH
:CHIP0
:CHIP10
:CHIP10
:CHIP3.3k
R208
C206
0.1
B:CHIP
A3.3V
3.3V-3
C212
0.1
B:CHIP
0.2
0.2
0.2
3.3
3.2
3.1
NC
NC
NC
VD
GND
GND
R IN
VD
GND
VD
VD
GND
GND
SOG
G IN
VD
GND
VD
VD
GND
GND
B IN
VD
GND
VD
GND
CKINV
CLAMP
SDA