Hitachi P50T01E Service Manual page 28

Digital module self-diagnosis function
At main microcomputer startup, hardware (mainly LSI) is checked by a self diagnosis program.
To enter this Self-Diagnosis mode, follow the following steps:
Procedure:
1) Enter Adjustment Mode.
2) Select SELF TEST and press OK button.
3) SELF TEST screen is displayed.
4) Each code is displayed in a SELF TEST screen.
A diagnosis result is displayed with a numerical value to the right side of each code.
Numerical value of 0 indicates normal, all values except 0 are errors.
PDP ADJUST MODE
OPTION
MAINTENANCE
SELF TEST
LINE MODE
MMC DEMO
MEMORY INIT
Adjustment Mode screen
A list of codes
code function
ddb Debug
dsm Sub-microcomputer
dle LED
dfl flash
dmp MPEG
ddm demulti
drm key scan
dic IICbus driver
dvad ADC
dfc FC
dhdm HDMI
dvdc Video decoder
dpdp PDPpanel (for PDP)
dldp LCDpanel (for LCD)
dvi Video
dvbi VBI slicer
dsl Video Switch
dada Audio amplifier
dau Audio
dhpa Headphones amplifier
dtu Digital / Analog tuner
dswv Swivel
dmmc MMC
dptp PTP driver
dpq Picture control driver
ddp Display driver
dttc Analog TeleText
dpyc PAL3DY/C Video decoder
dsp Multiplex driver
P50T01U/E P50TP01U/E P42T01U/E P42TP01U/E
Return
circuit No. PCB name
I101 MAIN
IH04 MAIN
IH04 MAIN
I103 MAIN
I101 MAIN
- -
IH04 MAIN
I101 MAIN
I101 MAIN
I101 MAIN
I102 MAIN
I102 MAIN
- PDP panel system error
- LCD panel state impossible of command acceptance, standby, parameter error
I101 MAIN
I102 MAIN
I101 MAIN
IF07 MAIN
I101 MAIN
I003 SUB
UT01,UT02 Terminal
IH04 MAIN
- -
I101 MAIN
I102, IM01 MAIN,SUB
I101 MAIN
IR01 SUB
IM01 SUB
IY01 SUB
ddb :0
dsm :0
dle :0
dfl :0
dmp :0
OK
ddm :0
dcd :0
drm :0
dpci :0
dlan :0
dsi :0
0 :OK
others :NG
SELF TEST screen
parameter error, system error
system error (-1)
seine general-purpose port lead error, lighting time error, system error
parameter error, device error, system error
Video error (2), Audio error (4)
error
system error (-1) / others error (3)
R_SYS_ERROR(-1), DIC_R_DEVICE_ERROR(2)
system error (-1) /device (I2C) error (2) / driver error (6)
firmware error code, system error
system error (-1) / parameter error (1) / device (I2C) error (2)
device error, system error
device error(firmware error), system error
system error
system error
parameter error, setting error in suspend, system error
I2C communication error with TAS3103 or TAS5508
system error
standby, state error
fail in initialisation, system error
system error (-1) / parameter error (1) /
sub-microcomputer driver communication error (2) /
initialisation registration not possible error (4)
driver initialisation error, system error
R_SYS_ERROR (-1) other errors (10)
parameter error, system error, suspend error, device error
system error
device error, system error
device error, system error
system error (-1) / I2C communication error (2)
27
SELF TEST SELF TEST
Error contents