Panasonic PT-EZ580 / PT-EZ580L / PT-EZ580D / PT-EZ580LD / PT-EW640 / PT-EW640L / PT-EW640D / PT-EW640LD / PT-EX610 / PT-EX610L / PT-EX610D / PT-EX610LD (serv.man2) Service Manual ▷ View online
INF-38
SECTION 1 SERVICE INFORMATION
■ [A] P.C.Board operation check
■ Main microprocessor check
A
Check the clock waveform around IC1102
X1008 : 35.455MHz
R1709: 24.576MHz
R1713 : 40.3MHZ
NG
A Check IC1102, X1008 and peripheral circuits
A Check the voltage (DC 6.0V) at pins 4, 5, 6 of connector [A15]
NG
A Replace the cable between [K9301] - [A15]
Replace [P] P.C.Board
A Check the voltage (DC 1.8V) at L1082
NG
A Check IC1046 and peripheral circuits
A Check the clock signal (35.455MHz} at R1712
NG
A Check X1008 and peripheral circuits
A Check the voltage (DC 3.3V) at L1076
NG
A Check Q1047, Q1048, IC1052 and peripheral circuits
A Check the voltages (DC 3.3V) at pins 11, 18, 29 and 55 of
IC1030(SUB CPU)
NG
A Check IC1030 and peripheral circuits
A Check the voltage (DC 1.2V) at L1079
NG
A Check IC1045 and peripheral circuits
A Check the voltage (DC 3.3V) at pin 1 of IC1031 (RESET)
NG
A Check IC1031 and peripheral circuits
A Check IC1043 (FLASH ROM) and peripheral circuit.
NG
A Check IC1102 (CPU & RESIZE) and peripheral circuits
A
Check the clock waveform around IC1104
R2224 : 33.3MHz
R2225: 25MHz
IC1104-D28 : 60HZ
NG
A Check IC1104, X1009, X1010 and peripheral circuits
A
When no input,check the waveform around IC1102;
<EZ580>
R1803 (LVDS_CK) 76.819MHz
<EW640/EX610>
R1803 (LVDS_CK) 53.183MHZ
NG
A Check IC1400 and peripheral circuits
A Check the waveform (LVDS output) at R2502, R2508
NG
A Check IC1103 (FPGA) and peripheral circuits
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
INF-39
SECTION 1 SERVICE INFORMATION
■ Remote control does not respond (Not respond only from rear side of the projector)
■ Remote control does not respond (Not respond only from front side of the projector)
■ SERIAL IN does not respond
A Check the waveform at pin 1 of RM1001 when the remote control
button is pressed.
NG
A Check RM1001 and peripheral circuits
A The signal waveform can be detected at pin 1 of RM3101 when
the remote control button is pressed.
NG
A Check RM3101 and peripheral circuits
A Check the cable connection of JK4005 (SERIAL IN)
NG
A Connect the connector securely
A Check the cable connection between [V1] - [A27]
NG
Replace the cable
A The signal waveform can be detected at pins 13, 15 and 17 of
IC4002 when the serial command is transmitted.
NG
A Check IC4002 and peripheral circuits
A Check the waveform at L1182 when the remote control button is
pressed.
NG
V Replace [V]-P.C.Board
A Check the FPC cable between [J1] - [A28]
NG
Replace the FPC cable
A The signal waveform can be detected at L1198 and L1199 when
the serial command is transmitted.
NG
J
Replace [J]-P.C.Board
A Replace [A]-P.C.Board
A Replace [A]-P.C.Board
A Replace [A]-P.C.Board
OK
OK
OK
OK
OK
OK
OK
OK
INF-40
SECTION 1 SERVICE INFORMATION
■ REMOTE IN does not respond
■ Controls of side panel does not respond
A Check the cable connection of JK4004 (REMOTE IN)
NG
A Connect the connector securely
S Check the voltage (DC 3.3V) at pin 13 of connector [S1] when the
power is turned on.
NG
A Check the [3.3V] power line on the [A]-P.C.Board
J
The signal waveform can be detected at pins of JK4004 when
the contact controller is used
NG
J
Replace [J]-P.C.Board
Check the connection cable between [A32] - [S1]
NG
Replace the cable
Check the FPC cable between [J1] ~ [A28]
NG
Replace the FPC cable
S Check the voltage [DC 3V] at pins 9 - 12 of connector [S1]
NG
S Check the [3.3V] power line on the [S]-P.C.Board
A The signal waveform can be detected at L1194 ^ L1197, L1202,
L1203, L1205, L1206.
NG
J
Replace [J]-P.C.Board
A Check that the voltage changes at L1177 - L1180 when some of
the control button are pressed
NG
S Replace [S]-P.C.Board
A Replace [A]-P.C.Board
A Replace [A]-P.C.Board
OK
OK
OK
OK
OK
OK
OK
OK
INF-41
SECTION 1 SERVICE INFORMATION
■ No sound
A/J
[ANALOG]
Check the connections JK4002 (AUDIO IN3), JK4003 (AUDIO
IN)
[DIGITAL]
Check the connections JK1004 (HDMI), JK1007 (DIGITAL
LINK, JK1008 (DisplayPort)
NG
Check the cable connection securely
J
[ANALOG]
Check the waveform at pins 28 and 29 of connector [JK4007]
NG
J
Replace the [J]-P.C.Board
A
[ANALOG]
Check the cable connection between connectors [A28] -
[JK4007]
NG
Replace the cable
S [Common]
Check the waveform at pins 5 and 10 of IC1029.
NG
A Check IC1016, IC1100 and peripheral circuits
A [Common]
Check the waveform at pins 2 and 13 of IC1029.
NG
A Check IC1029 and peripheral circuits
A Replace [A]-P.C.Board
OK
NG
OK
OK
OK
OK
Check each cable connection
No sound with built-in speaker
NG
Follow the section "Built-in speaker check"
No sound with external speakers
NG
Follow the section "AUDIO OUT check"
No sound with built-in and external speakers
Click on the first or last page to see other PT-EZ580 / PT-EZ580L / PT-EZ580D / PT-EZ580LD / PT-EW640 / PT-EW640L / PT-EW640D / PT-EW640LD / PT-EX610 / PT-EX610L / PT-EX610D / PT-EX610LD (serv.man2) service manuals if exist.