Panasonic PT-RZ970 / PT-RW930 / PT-RX110 (serv.man4) Service Manual ▷ View online
INF-33
SECTION 1 SERVICE INFORMATION
< RZ970/RW930/RX110 >
5. 4. Troubleshooting
* The letters in the left of inspection items indicate the P.C. Boards related to their respective descriptions.
* Please take care for electro-static discharges by using grounded wrist straps to release the electricity from the body.
■ Power does not turn ON. ([ON/STANDBY] LED does not light in red)
Check the connection of each connector
AC inlet - P1L/P1N, P6 - DG1, DG6 - R1
NG
Connect the cables firmly
DG Disconnect the DG1 connector, and 1 pin voltage is about 3.3V.
(connector cable side)
NG
P Replace the P-P.C.Board
DG Check and replace the DG-P.C.Board
OK
OK
■ Power does not turn ON. ([ON/STANDBY] LED blinks 3 times)
DG Check the voltage
DG1 connector 5 pin : 3.3 V
NG
DG
P
Check and replace DG-P.C.Board.
Check and replace P-P.C.Board.
OK
OK
Check the connection of each connector
P5 - DG12, P6 - DG1, P6 - A1
NG
Connect the cables firmly
A Check the voltage
A1 connector 3 pin : 5 V
NG
P Replace the P-P.C.Board
DG
A
Check and replace the DG-P.C.Board
Check and replace the A-P.C.Board
OK
A Check the voltage
A1 connector 1 pin : 3.3 V
NG
P Replace the P-P.C.Board
OK
INF-34
SECTION 1 SERVICE INFORMATION
< RZ970/RW930/RX110 >
■ Light source does not turn on. (Both of [LIGHT1,LIGHT2] LED blink 3 times)
■ Light source does not turn on. (Either of [LIGHT1,LIGHT2] LED blinks 3 times)
Check the connection of each connector.
P4 - D1, DG9/DG19 - D4, D2 - DR1/DR2, DR3/DR4 - LD
NG
Connect the cables firmly.
Check the connection of each connector.
P4 - D1, DG9/DG19 - D4, D2 - DR1/DR2, DR3/DR4 - LD
NG
Connect the cables firmly.
D
Check the driver input voltage.
D1 connector 1 pin : DC 380 V, 4 pin : DC 16 V
(at the lighting mode)
NG
P
Replace [P]-P.C.Board
After power turned on, color wheel and a phosphor wheel are
rotating ? (Starting noise check)
NG
Check the color wheel and a phosphor wheel, and con-
nection
D Replace [D]-P.C.Board
D
DR Replace D-P.C.Board, DR-P.C.Board
OK
OK
OK
OK
[Check]
•If both LDs is not lit, please check P-P.C.Board (LD1 / LD2 common circuit).
■ Light source does not turn on. (Either of [LIGHT1,LIGHT2] LED blinks 2 times)
Check the connection of each connector.
D2 - DR1/DR2, DR3/DR4 - LD
NG
Connect the cables firmly.
Replace appropriate LD unit.
OK
Check up the failure part on the LD with the self-check or system
logs.
Reset the LD open status in the service tool (LDResetTool).
OK
OK
INF-35
SECTION 1 SERVICE INFORMATION
< RZ970/RW930/RX110 >
■ No picture or abnormal picture is output
Check connection of each connector.
Check the input image other than solid black image.
Is the test pattern displayed?
Connect the cables firmly.
1
A Check the signal waveform.
Connector A2 pin 20 (ADG_LVDSL_CKP)
NG
Follow the section "A-P.C.Board operation check"
A Check the voltage.
Connector A2 pin 106 : 3.3 V (FM_RESET)
NG
Follow the section "Main microprocessor operation check"
(IC3501)
A Check the voltage.
Connector A2 pin 107 : 3.3 V (PWRGOOD)
NG
A
P
Check IC3501 (Main CPU) and IC3515 (AND gate) and
peripheral circuit, and replace P-P.C.Board.
Follow the section "DG/FM-P.C.Board operation check"
OK
OK
OK
OK
OK
NG
NG
NG
NG
NG
NG
OK
Is a menu screen displayed ?
A Check IC3508 and peripheral circuit.
No image is displayed
1
NG
No image with RGB 1 input.
Follow the section "RGB 1 input check"
No image with RGB 2 input.
Follow the section "RGB 2 input check"
No image with DVI-D input.
Follow the section "DVI-D input check"
No image with HDMI input.
Follow the section "HDMI input check"
No image with DIGITAL LINK input.
No image with DIGITAL LINK input.
No image with SDI input. (WUXGA model only)
No image with SDI input.
NG
NG
No image with VIDEO input.
Follow the section "VIDEO input check"
No image with Y/C input.
Follow the section "Y/C input check"
NG
NG
INF-36
SECTION 1 SERVICE INFORMATION
< RZ970/RW930/RX110 >
■ VIDEO input check
A Check the waveform of C3013
NG
A Check IC3501 and X3501 and peripheral circuit.
A Check the waveform of C3005
NG
A Check IC3062 and peripheral circuit.
A Check the waveform of C3049
NG
A Check IC3075 and peripheral circuit.
A Check FL3042 and peripheral circuit.
OK
OK
OK
OK
One of the input (Y/C, RGB1, RGB2, HDMI) can be displayed.
NG
Follow the section "A-P.C.Board operation check"
■ Y/C input check
A Check the waveform of C3011(Y signal) and C3012(C signal)
NG
A Check IC3501 and X3501 and peripheral circuit.
A Check the waveform of C3003(Y signal) and C3004(C signal)
NG
A Check IC3062 and peripheral circuit.
A Check L3043, L3044 and Q3037, Q3038 peripheral circuit.
OK
OK
OK
VIDEO input can be displayed
NG
Follow the section "A-P.C.Board operation check"
A Check the waveform of C3239
NG
A Check Q3036 and peripheral circuit.
OK
Click on the first or last page to see other PT-RZ970 / PT-RW930 / PT-RX110 (serv.man4) service manuals if exist.