Panasonic PT-RZ770 / PT-RW730 / PT-RZ660 / PT-RW620 (serv.man2) Service Manual ▷ View online
INF-41
SECTION 1 SERVICE INFORMATION
< RZ770/RW730/RZ660/RW620 >
■ Main microprocessor operation check
OK
OK
OK
A Check the clock waveform at R3622.
35.455MHz
NG
A Check X3501 and peripheral circuit.
A
Check in order of the following.
(1) IC3716(FLASH ROM) and peripheral circuit
(2) IC3721(SRAM) and peripheral circuit
(3) IC3501(Main CPU) and peripheral circuit
A Check the voltage.
Connector A1 pin 1 : 3.3 V
NG
A
P Cable check [P6] - [A1], and P-P.C.Board replace.
A Check the voltage.
R3826 : 1.2 V
NG
A Check IC3821 and peripheral circuit.
■ A-P.C.Board operation check
OK
OK
OK
A Check the voltage
C3864 : 1.5 V
NG
A Check IC3851 and peripheral circuit.
A Check the waveform at IC3501 with NO signal input.
Connector A2 pins 21-22 (Differential CLK) : 80MHz
NG
A Check IC3501 and peripheral circuit.
A Check the clock waveform
R3611 : 24.5 MHz
NG
A Check IC3501, X3601 and peripheral circuit.
A Check the voltage
R3801 : 1.2 V
NG
A Check IC3801 and peripheral circuit.
Follow the section "DG/FM-P.C.Board operation check"
OK
OK
A Check the voltage
R3981 : 0.75 V
NG
A Check IC3991 and peripheral circuit.
INF-42
SECTION 1 SERVICE INFORMATION
< RZ770/RW730/RZ660/RW620 >
■ DG/FM-P.C.Board operation check
DG
Check the connectors and cables.
A side: DG1, DG3 - DG14, DG16 - DG19
B side: DG2 (B to B connector)
* Check that the pin of the connector does not bend.
* Check that the cable is slipping off from the housing.
NG
Connect the connector firmly.
* Replace cable if the pin of the connector bend.
FM
Check the connectors and cables.
FM1, FM2, FM3
* Check that the pin of the connector does not bend.
* Check that the cable is slipping off from the housing.
NG
FM
Connect the connector firmly.
* Replace cable if the pin of the connector bend.
* Replace flexible cable if there is a vertical lines noise
on the screen.
DG
Check power supply line <1>
Connector DG1 TPDG6 : 3.3 V, TPDG7 : 5 V
Connector DG12 C6866(+) : 12 V, C6894(+) : 3.3 V,
C6864(+) : 18 V
NG
DG
P
Check the load on each power supply line.
Replace P-P.C.Board.
OK
OK
FM
Check power supply line <2>
Connector FM3
TP4001 : 3.3 V (or DG5 - 5/6/7pin : 3.3V) - WUXGA model
TP4002 : 12 V (DG5 - 2pin : 12V) - WXGA/XGA model
NG
FM Check the load on 3.3V(12V) power supply line.
DG Check power supply line <3>
L5309 : 3.3V, C5343(+) : 1.2V, IC5312 - 5pin : 3.3V
NG
DG Check IC5301/IC5306/IC5312 (Regulators) and peripheral
circuit.
OK
OK
DG Check power supply line <4>
L5609 : 3.3V, L5608 : 1.8V, C5607(+) : 1.2V
NG
DG Check IC5303/IC5302/IC5602 (Regulators) and
IC5601 (IWARP1) and peripheral circuit.
DG Check power supply line <5>
C5135 : 3.3V, C5140 : 1.8V, C5083(+) : 1.1V
NG
DG Check IC5004 (PMD1000), IC5001 (DDP4421)
and peripheral circuit.
OK
OK
OK
OK
NG
NG
NG
NG
NG
NG
OK
OK
OK
OK
DG Check AA_POSENSE line.
IC5004 - 34pin : 3.3 V
DG Check IC5004 and peripheral circuit.
DG Check AA_PWRGOOD line.
IC5007 - 7 pin : 3.3 V
DG IC7016 - 1 pin ([PWRGOOD]) : 3.3 V
DG
Check the connection
(B to B connector) to
A-P.C.B, and IC3786/
IC3501 and peripheral
circuit.
DG
Check IC5006/IC5007
(Flash Memory) and
peripheral circuit.
DG Check AA_MTR_ARSTZE line.
IC5004 - 48pin : 3.3 V
Is the color wheel (CW) rotation ?
Is LD lighting ?
DG
Flexible cable replacement.
Check the resistance between
DG3/DG4 conector and IC5001.
D Check LD, LD driver.
A
Check IC3501 (Main
CPU) and peripheral
circuit.
2
INF-43
SECTION 1 SERVICE INFORMATION
< RZ770/RW730/RZ660/RW620 >
OK
DG Check the clock waveform <1>
IC5310/IC5311 - 4 pin : 66 MHz
NG
DG Check X5301, IC5310, IC5311 and peripheral circuit.
IC5311 : WUXGA model only
OK
DG
Check synchronization signal output from IC5313(FPGA2).
Is the sync signal output at R5463(H sync), R5470(V sync),
R5412 (Clock)?
NG
(WXGA/XGA)
DG Check IC5313(FPGA2) and peripheral circuit.
NG
(WUXGA)
NG
DG
Check the synchronization signal input of
IC5601(IWARP1).
R5351(H sync), R5454 (V sync), R5432 (Clock)
OK
DG
Check the synchronization signal output of
IC5601(IWARP1)
R5666(H sync/V sync), R5685(Clock)
DG Check IC5313(FPGA2) and peripheral circuit
OK
NG
DG
Check IC5601
(IWARP1) and periph-
eral circuit
DG Check IC5313 (FPGA2)
and peripheral circuit
OK
DG Check the clock waveform <2>
R5014 Clock : 20MHz
NG
DG Check X5001 and peripheral circuit.
Is the color wheel (CW) rotation ?
NG
DG Check the motor power of color wheel.
L5013, L5014, L5015 (around IC5004) : Three-phase AC
OK
NG
DG
Check C5004
(PMD1000) and
peripheral circuit.
DG
Check C5008
(PMD1000) and
peripheral circuit.
Check the connector
cable between RT1 and
DG11.
Replace the color wheel.
Check the connector
cable between RB1 and
DG11.
Replace the PW1.
OK
OK
DG Check the waveform of [CW1 INDEX] line.
TPDG11 : 180Hz pulse (image no input)
NG
CW Check connector cable (RT1-DG11, CW1-RT5).
Check and replace the CW-P.C.Board.
Is the phosphor wheel 1 rotating ?
NG
DG Check the motor power of phosphor wheel 1.
L5026, L5027, L5028 (around IC5008) : Three-phase AC
OK
NG
OK
OK
DG Check the waveform of [CW1 INDEX] line.
TPDG12 : 180Hz pulse (image no input)
NG
CW Check connector cable (RB1-DG11, CW1-RB3).
Check and replace the CW-P.C.Board.
Is the phosphor wheel 2 rotating ?
NG
DG Check the motor power of phosphor wheel 2.
L5032, L5033, L5034 (around IC5008) : Three-phase AC
OK
NG
DG
Check the C5009
(PMD1000) and
peripheral circuit.
Check the connector
cable between RB1 and
DG11.
Replace the PW2.
OK
2
3
INF-44
SECTION 1 SERVICE INFORMATION
< RZ770/RW730/RZ660/RW620 >
■ Remote control does not respond
● No respond only from front side.
OK
OK
DG The signal waveform can be detected at pin 10 of connector DG6
when pressing the button on the remote control.
NG
R
Check the cable connection between connectors DG6 and
R1.
Replace R-P.C.Boad.
DG The signal waveform can be detected at pin 6 of IC6511.
NG
DG Check IC6511, JK6501,Q6506 and peripheral circuit.
DG Check IC6501 peripheral circuit.
Replace DG-P.C.Board.
3
OK
DF Check the waveform of [CW3 INDEX] line.
TPDG13 : 180Hz pulse (image no input)
NG
CW Check the connector cable (RT1-DG11, CW1-RT3).
Check and replace the CW-P.C.Board.
OK
DF
Check power supply line <5>
IC4002 output voltage TP4005 : Approx 8.5V
TP4008 : Approx -10V
TP4009 : Approx 16V
NG
DF Check IC4002 and peripheral circuit.
FM Replace the FM-P.C.Board
OK
● No respond only from rear side.
OK
DG The signal waveform can be detected at pin 11 of connector DG8
when pressing the button on the remote control.
NG
BR
Check the cable connection between connectors DG8 and
BR1.
Replace BR-P.C.Boad.
DG The signal waveform can be detected at pin 4 of IC6506.
NG
DG Check IC6506 and peripheral circuit.
DG Replace DG-P.C.Board.
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