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INF - 29
< Reference >
BQ
Ballast input voltage check
Lighting mode : B1 connector 1pin DC380V
B1 connector 4pin DC18V
Lighting mode : B1 connector 1pin DC380V
B1 connector 4pin DC18V
P
Replace the P-P.C.Board.
BQ Replace each BQ-P.C.Board.
■ Lamp does not turn ON. (Lamp1 and Lamp2 indicator blink 3 times)
* The decline of AC voltage or instant blackout makes the lamp turned off. Confirm the situation of power supply.
* Immediately after power is turned OFF, there is a case in which power turned ON, the lamp may occur in the state
of high temperature.
* Immediately after power is turned OFF, there is a case in which power turned ON, the lamp may occur in the state
of high temperature.
Check the status of each lamp unit.
Replace the lamp unit.
Confirm the connection of each connector.
P4～B1、DG9～Q3、P3～Thermal fuse
P4～B1、DG9～Q3、P3～Thermal fuse
Connect the cables properly.
BQ Replace each BQ-P.C.Board.
・If the Lamp of the two does not light together, please check P-P.C.Board.
・If the Lamp of only one does not light, confirm the replace the lamp2 and lamp1.
Distinction of ballast fault or lamp fault can be performed.
・If the Lamp of only one does not light, confirm the replace the lamp2 and lamp1.
Distinction of ballast fault or lamp fault can be performed.
■ Lamp does not turn ON. (Lamp1 or Lamp2 either indicator blink 3 times)
Confirm the connection of each connector
P4～B1、DG9～Q3 Lamp cable
P4～B1、DG9～Q3 Lamp cable
Connect the cables properly.
Check the status of each lamp unit.
Replace the lamp unit.
OK
NG
OK
NG
OK
NG
NG
OK
NG
OK
INF - 30
１
１
* CPU : Central Processing Unit
■ No image appears (picture is abnormal)
Is a menu screen displayed?
Check that all the cables are connected properly.
Connect the cables properly.
No picture appears during RGB1 input.
Follow the section "RGB1 input checks".
No picture appears during RGB2 input.
Follow the section "RGB2 input checks".
No picture appears during DVI-D input.
Follow the section "DVI-D input checks".
Check the input signal. (other than all black picture)
No picture appears during VIDEO input.
Follow the section "VIDEO input checks".
No picture appears during Y/C input.
Follow the section "Y/C input checks".
Can 3D test pattern be displayed?
Check the IC3058 peripheral circuits.
No picture appears in every input mode.
A
Check signal waveform on A2 connector 20 pin.
(ADG_LVDSL_CKP)
(ADG_LVDSL_CKP)
Follow the section "A-P.C.Board operation checks".
A
Check voltage on A2 connector 10 pin is approx 3.3V.
(PWRGOOD2)
(PWRGOOD2)
A
・
P
Check the IC3501 (main CPU), IC3515 (AND gate)
and the peripheral circuits.
Replace the P-P.C.Board.
and the peripheral circuits.
Replace the P-P.C.Board.
No picture appears during HDMI input.
Follow the section "HDMI input checks".
No picture appears during DIGITAL LINK input.
Follow the section "DIGITAL LINK input checks".
No picture appears during SDI1 input.
(DZ870 only)
(DZ870 only)
Follow the section "SDI1 input checks".
(DZ870 only)
(DZ870 only)
A
Check voltage on A2 connector 106pin is
approx 3.3 V.(FM_RESET)
approx 3.3 V.(FM_RESET)
Follow the section "Main CPU operation checks".
Follow the section "DG/FM-P.C.Board operation checks".
NG
OK
NG
NG
NG
OK
OK
OK
NG
OK
NG
OK
NG
NG
NG
NG
NG
NG
NG
NG
INF - 31
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
Check the waveform at C3013.
Check of IC3501, X3501 peripheral circuit.
Check the waveform at C3005.
Check and repair IC3062 and the peripheral circuits.
Check the waveform at C3133.
Check and repair IC3075 and the peripheral circuits.
● VIDEO input checks
Check the picture condition of Y/C, RGB1, RGB2, HDMI
input. If all four pictures are abnormal, go to NG.
input. If all four pictures are abnormal, go to NG.
Follow the section "A-P.C.Board operation checks".
Check the waveform at C3003(Y) and C3004(C).
Check of IC3062 peripheral circuit.
Check of L3043, L3044, Q3037, Q3038 peripheral
circuit.
circuit.
● RGB1 input checks
A
Check the input waveform to the IC3010.
C3059(R),C3058(G),C3060(B),TPA09(HS),TPA10(VS)
C3059(R),C3058(G),C3060(B),TPA09(HS),TPA10(VS)
Check the picture condition of RGB2 and HDMI input.
Check and repair FL3001 and the peripheral circuits.
● Y/C input checks
Check the picture condition of VIDEO input.
Follow the section "A-P.C.Board operation checks".
Check the waveform at C3011(Y) and C3012(C).
Check of IC3501, X3501 peripheral circuit.
Check of IC3010 peripheral circuit.
Check of L3042, L3043, L3044, Q3036, Q3037,
Q3038 peripheral circuit.
Q3038 peripheral circuit.
Check of IC3010 peripheral circuit.
Check the input waveform.
R3480(G9)、R3444（CLK）、R3484(HS、VS)
R3480(G9)、R3444（CLK）、R3484(HS、VS)
Follow the section "A-P.C.Board operation checks".
Check the input waveform.
R3169(G9)、R3174（CLK）、R3173(HS、VS)
R3169(G9)、R3174（CLK）、R3173(HS、VS)
Check of IC3058 peripheral circuit.
OK
OK
NG
NG
OK
OK
NG
NG
NG
NG
OK
NG
NG
OK
OK
OK
NG
NG
NG
OK
OK
OK
INF - 32
A
A
A
A
A
A
A
A
A
A
A
A
● RGB2 input checks
Check the picture condition of RGB1, DVI-D input.
If all four pictures are abnormal, go to NG.
If all four pictures are abnormal, go to NG.
A
Check the input waveform to the IC3010.
C3063(R)、C3062（G）、C3064（B）、TPA09(HS)、
TPA10(VS)
C3063(R)、C3062（G）、C3064（B）、TPA09(HS)、
TPA10(VS)
A
Check of IC3058 peripheral circuit.
● DVI-D input checks
Turn on the PinP mode, set the main input is RGB1 and
sub input is RGB2.
Check the picture condition of RGB2.
sub input is RGB2.
Check the picture condition of RGB2.
Check the waveform on R3259(AE_ACT).
Check circuits between JK3005 and IC3020.
Check of R3493(ACT) and IC3058 peripheral circuit.
Check of L3039, L3040, L3041, Q3033, Q3034
peripheral circuit.
peripheral circuit.
Check of IC3010 peripheral circuit.
Check the input waveform.
R3480(G9)、R3444（CLK）、R3484(HS、VS)
R3480(G9)、R3444（CLK）、R3484(HS、VS)
Follow the section "A-P.C.Board operation checks".
Check the input waveform.
R3169(G9)、R3174（CLK）、R3173(HS、VS)
R3169(G9)、R3174（CLK）、R3173(HS、VS)
Check of IC3010 peripheral circuit.
Check the waveform.
R3487(G9)、R3446（CLK）、R3493(HS、VS)
R3487(G9)、R3446（CLK）、R3493(HS、VS)
Follow the section "A-P.C.Board operation checks".
Check the waveform.
R3289(G9)、R3260（CLK）、R3259(HS、VS)
R3289(G9)、R3260（CLK）、R3259(HS、VS)
Check of IC3020 peripheral circuit.
Check of IC3058 peripheral circuit.
OK
NG
OK
OK
NG
OK
NG
NG
OK
NG
OK
OK
NG
OK
NG
NG
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