Service Modes, Error Codes, and Fault Finding
EN 15
L04E AA
5.
Table 5-4 NVM default values
5.8.2
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”
Address
(dec)
Value
(hex)
EW (EW width)
19
25
PW (EW parabola width)
20
0A
HS (Horizontal shift)
21
1A
HP (Horizontal parallelogram)
22
1F
HB (Horizontal Bow)
23
1F
UCP (EW upper corner parabola)
24
1E
LCP (EW lower corner parabola)
25
28
TC (EW trapezium)
26
1A
VS (Vertical slope)
27
25
VA (Vertical amplitude)
28
1E
SC (S-Correction)
29
1C
VSH (Vertical Shift)
30
1A
VX (Vertical Zoom)
31
19
VSL (Vertical scroll)
32
20
VL (Vertical linearity)
33
20
AGC (AGC Takeover)
36
1E
OIF (IF-PLL Offset)
37
20
AGC10 (AGC 10)
38
1
H60 (60 Hz Horizontal Shift)
39
9
PF_SC_PWL (Peaking Frequency,
Soft Clipper, Peak White Limit)
40
0A
COR (Phase 1 time constant,
Video Dependant Coring,
Ratio & White stretch)
41
0F
60 Hz Vertical amplitude
42
40
YD & CL
43
2
RGB amplitude for full teletext mode
46
0C
NVM_TABLE_VERSION
60
26
OPTION_TABLE_VERSION
61
11
CVI_BLOR
62
1E
CVI_BLOG
63
1C
TXT Brightness
64
0F
V60 offset (60Hz Vertical Amplitude)
66
FE
FOAB, CHSE
139
3
SPR, WS
140
0
VMA, SVM
141
31
NVM_SOC_SMD
142
33
CCC_Preset_Gain_Red
143
1F
CCC_Preset_Gain_Green
144
1F
CCC_Preset_Gain_Blue
145
1F
NVM_FMWS
149
2
NVM_ASD_SC1_THR
150
10
NVM_CRYSTAL_ALIGN
208
4F
Last Brightness (VID PP others)
264
34
Last Color (VID PP others)
265
2C
Last Contrast (VID PP others)
266
4B
Last Sharpness (VID PP others)
267
37
Last Hue (VID PP others)
268
32
Last Colour Temperature (VID PP others) 269
0D
White-D Cool Red
294
FD
White-D Cool Blue
296
8
White-D Normal Red
297
22
White-D Normal Green
298
20
White-D Normal Blue
299
1B
White-D Warm Red
300
2
White-D Warm Blue
302
FA
Last Volume
343
19
Last Balance
344
32
Last Treble (AUD PP others)
345
32
Last Bass (AUD PP others)
346
32
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
Yes
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
Yes
Check
voltage
across 2552
Is Vbatt
approximately
140V
Check
voltage 2562
&2563
Yes
16V
No
Check Power
Supply circuit
Check 3V
across 2535
Check 6V
across 2535
Software
loaded?
No
Yes
Load
Software
Yes
Yes
Set able to
Start
Yes
Yes
End
Check Line
Transistor 7405
No
No
E_14480_058.eps
170204