Panasonic PT-RQ22KEJ (serv.man3) Service Manual ▷ View online
INF-43
SECTION 1 SERVICE INFORMATION
< RQ22K >
■ Light source does not turn on. (Either of [LIGHT1 or LIGHT2] LED blinks 3 times)
■ Light source does not turn on. (Either of [LIGHT1 or LIGHT2] LED blinks twice)
Check the connection of each connector.
PF3/PF4 - D1, G4/G5 - D3, D2 - DR2/DR5, D5 - DR7/DR8,
DR1/DR3/DR4/DR6 - LD
NG
Connect the cables properly.
Check up the failure part on the LD with the self-check or logs.
D
Check the driver input voltage when power-on.
Connector D1 pin 1 : Approx DC380 V
Connector D1 pin 4 : Approx DC 16 V
NG
PF
PB Check and replace [PF]/[PB] P.C.Board.
D
Check the connection of each connector.
D2 - DR2/DR5, D5 - DR7/DR8, DR1/DR3/DR4/DR6 - LD
NG
Connect the cables properly, then reset the status of the
LD units with the LD reset tool.
D
DR Check and replace [D]/[DR] P.C.Board.
Replace pertinent LD unit.
OK
OK
OK
OK
INF-44
SECTION 1 SERVICE INFORMATION
< RQ22K >
■ No picture or abnormal picture is output
Check connection of each connector.
Check the input image other than solid black image.
Check below with a input image other than solid black pattern.
Connect the cables properly.
OK
OK
OK
OK
NG
Is a menu screen displayed ?
No image is displayed
NG
Is the internal test pattern displayed?
NG
NG
NG
NG
NG
OK
A Check between IC2601 and IC3501/IC3201.
Check IC2601 and peripheral circuit.
No image with SLOT1 input.
Follow the section "SLOT1 input check"
No image with SLOT2 input.
Follow the section "SLOT2 input check"
No image with SDI input.
Follow the section "SDI input check"
No image with DIGITAL LINK input.
Follow the section "DIGITAL LINK input check"
A Check the signal waveform.
Connector A2 pin 37 (SCX2M_LVDSL_CKP)
NG
Follow the section "A-P.C.Board operation check"
A Check the voltage.
Connector A2 pin 99 : Approx. 3.3 V (FM_BOOT_HOLD)
NG
Follow the section "Main CPU (IC3501) check"
A Check the voltage.
Connector A2 pin 98 : Approx. 3.3 V (PWRGOOD2)
NG
Check IC3501 (Main CPU) and IC3786 (AND gate) and
peripheral circuit, or replace [PF]/[PB]-P.C.Board.
Follow the section "DG-P.C.Board operation check"
Follow the section "DF/DP/FM-P.C.Board operation check"
OK
OK
OK
①
①
INF-45
SECTION 1 SERVICE INFORMATION
< RQ22K >
One of the input (SDI, DIGITAL LINK) can be displayed.
NG
Follow the section "IC2601 (FPGA2) operation check"
One of the input (SDI, DIGITAL LINK) can be displayed.
NG
Follow the section "IC2601 (FPGA2) operation check"
MA Borad to Board connector check (MA1 - Interface Board).
NG
MA Connect the cables properly.
* Replace the connector if it is broken.
■ SLOT1 input check
A
MA Borad to Board connector check (A4 - MA4, A5 - MA5).
NG
A
MA
Connect the cables properly.
* Replace the connector if it is broken.
A Check voltage supply line.
Connector A4 L6016 : Approx. 16.5V
NG
A
PF
PB
Check A1 connector peripheral circuit.
Replace [PF]/[PB]-P.C.Board.
A Check between connector A4/A5 and IC2601.
Check IC2601 and peripheral circuit.
OK
OK
OK
OK
MA Borad to Board connector check (MA2 - Interface Board).
NG
MA Connect the cables properly.
* Replace the connector if it is broken.
■ SLOT2 input check
A
MA Borad to Board connector check (A4 - MA4, A5 - MA5).
NG
A
MA
Connect the cables properly.
* Replace the connector if it is broken.
A Check voltage supply line.
Connector A4 L6017 : Approx. 16.5V
NG
A
PF
PB
Check A1 connector peripheral circuit.
Replace [PF]/[PB]-P.C.Board.
A Check between connector A4/A5 and IC2601.
Check IC2601 and peripheral circuit.
OK
OK
OK
OK
INF-46
SECTION 1 SERVICE INFORMATION
< RQ22K >
■ SDI1 input check
Check the SDI4 input image.
NG
A
Check line between JK2704 and IC2704, and between
IC2704 and IC2601, and peripheral circuit.
L2711 : Approx. 3.3V, IC2704 pin 13/16 : Approx. 3.3V
One of the input (SLOT, DIGITAL LINK) can be displayed.
NG
Follow the section "IC2601(FPGA2) operation check"
Check the SDI2 input image.
NG
A
Check line between JK2702 and IC2702, and between
IC2702 and IC2601, and peripheral circuit.
L2707 : Approx. 3.3V, IC2702 pin 13/16 : Approx. 3.3V
Check the SDI3 input image.
NG
A
Check line between JK2703 and IC2703, and between
IC2703 and IC2601, and peripheral circuit.
L2709 : Approx. 3.3V, IC2703 pin 13/16 : Approx. 3.3V
A
Check line between JK2701 and IC2701.
Check line between IC2701 and IC2601, and peripheral circuit.
L2705 : Approx. 3.3V, IC2701 pin 13/16 : Approx. 3.3V
OK
OK
OK
OK
■ DIGITAL LINK input check
DIGITAL LINK software version is displayed on the SELF
CHECK screen ?
Check the DIGITAL LINK status of [DIGITAL LINK STATUS]
menu.
[SIGNAL QUALITY] is Green (-12 dB or lower) or
Yellow (-11 dB ~ -8dB)
NG
A Check JK2001 and IC2001, T2001 and peripheral circuit.
[DIGITAL LINK mode] of [NETWORK] menu is set to [AUTO] or
[DIGITAL LINK]?
NG
A Set to [AUTO] or [DIGITAL LINK].
One of the input (SLOT, SDI) can be displayed.
NG
Follow the section "IC2601(FPGA2) operation check"
A Check line between IC2801 and IC2601, and peripheral circuit.
OK
OK
OK
OK
Correct input signal information is displayed on the status
screen ?
NG
A Check line between IC2801 and IC2001, and peripheral
circuit.
OK
NG
②
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