Specifications

Service Modes, Error Codes, and Fault Finding
EN 14 L04.6HU CA5.
5.7.2 ATSC Module
ATSC Module check
Figure 5-4 Fault finding tree “ATSC Module check”
5.7.3 Power Supply
Set Not Working
Figure 5-5 Fault finding tree “Set not working”
Set Does Not Start Up
Figure 5-6 Fault finding tree “Set does not start up”
OIF (IF-PLL Offset) 68 26 26
H60 (60 Hz Horizontal Shift) 150 00 00
PWL (Peak White Limit) 74 0A 0A
60 Hz Vertical amplitude 152 00 00
NVM_CVI_BLOR 71 24 24
NVM_CVI_BLOG 72 1F 1F
TXT Brightness 128 20 20
V60 offset (60Hz Vert. Ampl.) 151 00 00
NVM_CRYSTALALIGN 284 3F 3F
White-D Cool Red 134 20 20
White-D Cool Green 135 1B 1B
White-D Cool Blue 136 1A 1A
White-D Normal Red 137 00 00
White-D Normal Green 138 01 01
White-D Normal Blue 139 07 07
White-D Warm Red 140 00 00
White-D Warm Green 141 FB FB
White-D Warm Blue 142 EF EF
Bit
Addr. (DEC) 27HT4000D/27 (HEX) 27HT7210D/27 (HEX)
F_15760_010.eps
161105
Check 10 V supply
from Main Chassis
OK?
Check Auxillary
Power Supply
No
Check UART Signal
(P1206)
Yes
OK?
Check Hercules
UART o/p
No
Check Video &
Audio signal o/p
from ATSC Module
Yes
OK?
Replace ATSC
Module
No
Check wiring and
connections of ATSC
Module
Yes
Not Ok
Check fusible
resistor 3510 &
circuit before it
Check DC
voltage at
2505/2507
Ok
Ok
Check
fusible
resistor 3532
Check
7512
Check IC7511 &
IC7531
Set able to
start-up
Check other
fusible resistor
and capacitor in
the circuit
No
End
Ye s
Not Ok
Ok
Check Power
Supply Mains
Switch
Bridge Rectifier
circuit 6500
E_14480_057.eps
190204
Set Unable
to Start
Fuse Blown?
Change
Fuse
Ye s
Check
voltage
across 2552
Is Vbatt
approximately
140V
Check
voltage 2562
&2563
Ye s
16V
No
Check Power
Supply circuit
Check 3V
across 2535
Check 6V
across 2535
Software
loaded?
No
Ye s
Load
Software
Ye s
Ye s
Set able to
Start
Ye s
Ye s
End
Check Line
Transistor 7405
No
No
E_14480_058.eps
170204