Panasonic PT-RCQ10 / PT-RCQ80 (serv.man3) Service Manual ▷ View online
INF-49
SECTION 1 SERVICE INFORMATION
< RCQ10 / RCQ80 >
■ 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 2 times or 3 times)
Check the connection of each connector.
P3 - D1, P5/D2 - DR1/DR2
NG
Connect the cables firmly.
Check the error status with "SELF-CHECK" screen or the system
log and find the error on the LD unit.
NG
Replace the LD unit which has an error.
Check the connectors.
P3 - D1, P5/D2 - DR1/DR2, DR2 - DG9, DR2 - DG19, DR4 -
LD unit FPC connector, DR5 - LD unit FPC connector
NG
Check each connection firmly.
D
Check the driver input voltage.
D1 connector pin 1 : DC 380 V, pin 4 : DC 16 V
(at the lighting mode)
NG
P
Replace P-PCB.
D
Check the voltage of 110V at pin 1 of D2 connector.
NG
P
Replace P-PCB.
D
DR
Disconnect the connectors DR1 on the both of DR-PCB(LD1/
LD2). Check the voltage of 110V at pin 1 of D2 connector.
NG
P
Replace P-PCB.
After power turned on, color wheel and phosphor wheel are
rotating ? (Rotation noise is hearing?)
NG
Check the color wheel and phosphor wheel, and connec-
tion
DR Replace DR-PCB which the voltage is observed at pin 1 of D2
connector when disconnecting the DR1 connector.
DR Replace DR-PCB indicated by the LED blinking.
OK
OK
OK
OK
OK
OK
OK
• It may be caused by low AC voltage or Instantaneous power off. Check power supply lines.
INF-50
SECTION 1 SERVICE INFORMATION
< RCQ10 / RCQ80 >
■ 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.
Pins 38-39 of connector A2 (
ADG_LVDSL_CKN/ADG_LVDSL_CKP
)
NG
Follow the section "A-PCB operation check"
A Check the voltage.
Pin 73 of connector A2 : 3.3 V (FM_BOOT_HOLD)
NG
Follow the section "Main microprocessor operation check"
(IC3501)
A Check the voltage.
Pin 74 of connector A2 : 3.3 V (PWRGOOD2)
NG
A
P
Check IC3501 (Main CPU) and IC3786 (AND gate) and
peripheral circuit, and replace P-PCB.
Follow the section "DG/FM-PCB operation check"
OK
OK
OK
OK
OK
OK
OK
NG
NG
NG
NG
NG
NG
NG
Is a menu screen displayed ?
A Check the waveform at R2654(G9), R2667 (CLK), R2669
(HS, VS) and IC2801 peripheral circuit
No image is displayed
1
NG
No image with HDMI input.
Follow the section "HDMI input check"
No image with DVI-D input.
Follow the section "DVI-D input check"
No image with DIGITAL LINK input.
Follow the section "DIGITAL LINK input check"
No image with SDI input.
Follow the section "SDI input check"
No image with SLOT input.
No image with SLOT input.
NG
A Check IC2801 and
peripheral circuit.
A-PCB operation check
INF-51
SECTION 1 SERVICE INFORMATION
< RCQ10 / RCQ80 >
■ HDMI input check
A DVI-D input can be displayed.
NG
Follow the section "DVI-D operation check"
A Check between IC3010 - JK3006, or X3003(27MHz),
IC3010 - IC2801 and peripheral circuit.
A Check between IC3010 - JK3005, or X3003(27MHz),
IC3010 - IC2801 and peripheral circuit.
OK
■ DVI-D input check
A One of the input (SDI, SLOT) can be displayed.
NG
A Check IC2801 and peripheral circuit.
OK
OK
A Check the signal at points below.
L3078 : 1.2V, IC3080-1pin : 3.3V
NG
A Check IC3079 and IC3080, and peripheral circuit.
■ DIGITAL LINK input check
DIGITAL LINK firmware version is displayed on the SELF
CHECK screen.
NG
Check DIGITAL LINK status of [DIGITAL LINK STATUS] menu.
[SIGNAL QUALITY]
Green (-12 dB or lower) or Yellow (-11 dB~-8 dB)
NG
A Check between JK2002 and IC2001,
Check X2002, IC2083, IC2084 and peripheral circuit.
Is [DIGITAL LINK MODE] menu set to [AUTO] or [DIGITAL
LINK]?
NG
Set [AUTO] or [DIGITAL LINK].
A Check between IC2001 and IC3010.
Check IC2001, IC3010 and peripheral circuit.
OK
OK
OK
OK
HDMI input can be displayed.
NG
Follow the section "HDMI operation check"
A Check X2002 (125MHz), IC2083, IC2084, IC2001 and peripheral
circuit.
NG
A Check the voltage at points below.
3.3V at L2069, 1.8V at L2071, 1.0V at L2073
NG
A Check IC2086, IC2087, IC2088 and peripheral circuit.
INF-52
SECTION 1 SERVICE INFORMATION
< RCQ10 / RCQ80 >
■ SDI input check
■ SLOT input check
A Check between IC2801 - IC3072, IC2801 and peripheral circuit.
A Check between connector A5 and IC2801.
Interface board replacement.
A Check the voltage at pin 7 of IC3072.
Less than 0.4V
NG
A Check IC3072, IC3072 - JK3008 and peripheral circuit.
MA Check the connecting condition of the connector MA2 - interface
board. (B to B connector)
NG
MA Connect the cables firmly.
(Replace if damaged)
OK
OK
OK
OK
A Check the voltage.
IC3059- pin 1 : 3.3V
NG
A Check IC3059 and peripheral circuit.
A
MA
Check the connecting condition of the connector A5 - MA1.
(B to B connector)
NG
A
MA
Connect the cables firmly.
(Replace if damaged)
A SLOT input can be displayed.
NG
A Check IC2801 and peripheral circuit.
A SDI input can be displayed.
NG
A Check IC2801 and peripheral circuit.
OK
OK
A Check the voltage.
L6009 : 16.5V
NG
A
MA
Check connector A1 and peripheral circuit.
P5-A1 cable check and replacement, P-PCB replacement
OK
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