LG 42PA450C-CM (CHASSIS:PA23A) Service Manual ▷ View online
LGE Display Division LG(51)
Establish : 12. 01. 02 24
Reform : 12. 01. 02 48
Reform : 12. 01. 02 48
LG 전자
PD23A/B Product Specification
No
Item
Min
Typ
Max
Unit
Measurement Result
Remarks
EN61000-4-5 Surge
EN61000-4-6
Conducted
immunity
EN61000-4-11 Applied
7. Video
No
Item
Min
Typ
Max
Unit
Measurement Result
Remarks
1.
Over Scan, Vertical
4
7
%
2.
Over Scan, Horizontal
4
8
%
3.
IF Rejection Ratio
-13.0
dB
4.
Image Rejection Ratio
-13.0
dB
5.
Adjacent CH Rejection, Upper
-6.0
dB
6.
Adjacent CH Rejection, Lower
-13.0
dB
7.
Sync Level
25
%
8.
Color
7
%
9.
AFT
-1.8
+1.8 MHz
10. Sub Carrier Pull In Range
-450
+450
Hz
11. Sub Carrier Delay
-1.5
+1.5
usec
12. AGC speed
100
Hz
13. AV Video Out Level
0.85
1.0
1.15
Vpp
14. AV Video Sync Out Level
0.25
0.3
0.35
Vpp
15. AV Burst Out Level
0.15
0.3
0.35
Vpp
16.
AV Video Out Frequency
Characteristic
Characteristic
3.0 MHz
17. AV Video Out S/N
40.0
dB
LGE Display Division LG(51)
Establish : 12. 01. 02 25
Reform : 12. 01. 02 48
Reform : 12. 01. 02 48
LG 전자
PD23A/B Product Specification
No
Item
Min
Typ
Max
Unit
Measurement Result
Remarks
18. Color Distortion, DG
10
%
19. Color Distortion, DP
10
deg
20. Color S/N, AM
43
dB
21. Color S/N, PM
43
dB
22.
AV Video In Level
-
-
-
Vpp
Spec out
23.
AV Sync In Level
-
-
-
Vpp
Spec out
24.
AV Burst In Level
-
-
-
Vpp
Spec out
25. AV Video In Impedance 100KHz
67.5
75
82.5
Ohm
26. AV Video In Impedance 2MHz
67.5
75
82.5
Ohm
8.Digital Receiver (DVB-T) : COFDM (8k, 64QAM, R=2/3, Gint=1/4)
No
Item
Min
Typ
Max
Unit
Measurement Result
Remark
1. DVB-T
64QAM(2/3)
Receiving
Sensitivity Max
-5
dBm
Test Condition: 21CH
2.
DVB-T 64QAM(2/3) Receiving Sensitivity Min
-78.0
dBm
Test Condition: 21CH
3.
DVB-T 64QAM(3/4) Receiving Sensitivity Max
-5
dBm
Test Condition: 21CH
4.
DVB-T 64QAM(3/4) Receiving Sensitivity Min
-76.2
dBm
Test Condition: 21CH
5. AFC,
DVB-T
64QAM(2/3)
166.5
KHz
6. AFC,
DVB-T
64QAM(2/3)
-166.5 KHz
7. AFC,
DVB-T
64QAM(3/4)
166.5
KHz
8. AFC,
DVB-T
64QAM(3/4)
-166.5 KHz
9.
C/N with AWGN 64QAM(2/3)
16.5
dB
10. C/N with AWGN 64QAM(3/4)
18
dB
11. Co CH Interference(DVB-T-PAL) 64QAM(2/3)
3
dB
12. Co CH Interference(DVB-T-PAL) 64QAM(3/4)
9
dB
LGE Display Division LG(51)
Establish : 12. 01. 02 26
Reform : 12. 01. 02 48
Reform : 12. 01. 02 48
LG 전자
PD23A/B Product Specification
No
Item
Min
Typ
Max
Unit
Measurement Result
Remark
13.
Adjacent CH Interference Lower(DBV-T-PAL)
64QAM(2/3)
64QAM(2/3)
35
dB
14.
Adjacent CH Interference Upper(DBV-T-PAL)
64QAM(2/3)
64QAM(2/3)
35
dB
15.
Adjacent CH Interference Lower(DBV-T-PAL)
64QAM(3/4)
64QAM(3/4)
33
dB
16.
Adjacent CH Interference Upper(DBV-T-PAL)
64QAM(3/4)
64QAM(3/4)
33
dB
17. Image Channel(n+9) 64QAM(2/3)
46
dB
18. Image Channel(n+9) 64QAM(3/4)
44
dB
19. Single
echo
64QAM(2/3)
24
dB
20. Single
echo
64QAM(3/4)
25
dB
21. Short delay multi path 64QAM(2/3)
21.5
dB
22. Short delay multi path 64QAM(3/4)
24
dB
23. Long delay multi path 64QAM(2/3)
20
dB
24. Long delay multi path 64QAM(3/4)
24
dB
-. Digital Receiver (DVB-C) : 64QAM
No
Item
Min
Typ
Max
Unit
Measurement Result
Remarks
1 DVB-C
64QAM(7M)
Receiving
Sensitivity Max 1CH
-5
dBm
2 DVB-C
64QAM(7M)
Receiving
Sensitivity Max 10CH
-5
dBm
3 DVB-C 64QAM(7M) Receiving Sensitivity Max 20CH
-5
dBm
4 DVB-C 64QAM(7M) Receiving Sensitivity Max 30CH
-5
dBm
5 DVB-C 64QAM(7M) Receiving Sensitivity Max 40CH
-5
dBm
6 DVB-C 64QAM(7M) Receiving Sensitivity Max 50CH
-5
dBm
7 DVB-C 64QAM(7M) Receiving Sensitivity Max 60CH
-5
dBm
LGE Display Division LG(51)
Establish : 12. 01. 02 27
Reform : 12. 01. 02 48
Reform : 12. 01. 02 48
LG 전자
PD23A/B Product Specification
8 DVB-C 64QAM(7M) Receiving Sensitivity Max 70CH
-5
dBm
9 DVB-C 64QAM(7M) Receiving Sensitivity Max 80CH
-5
dBm
10 DVB-C 64QAM(7M) Receiving Sensitivity Max 90CH
-5
dBm
11 DVB-C 64QAM(7M) Receiving Sensitivity Max 94CH
-5
dBm
12 DVB-C 64QAM(7M) Receiving Sensitivity Min 1CH
-74
dBm
13 DVB-C 64QAM(7M) Receiving Sensitivity Min 10CH
-74
dBm
14 DVB-C 64QAM(7M) Receiving Sensitivity Min 20CH
-74
dBm
15 DVB-C 64QAM(7M) Receiving Sensitivity Min 30CH
-74
dBm
16 DVB-C 64QAM(7M) Receiving Sensitivity Min 40CH
-74
dBm
17 DVB-C 64QAM(7M) Receiving Sensitivity Min 50CH
-74
dBm
18 DVB-C 64QAM(7M) Receiving Sensitivity Min 60CH
-74
dBm
19 DVB-C 64QAM(7M) Receiving Sensitivity Min 70CH
-74
dBm
20 DVB-C 64QAM(7M) Receiving Sensitivity Min 80CH
-74
dBm
21 DVB-C 64QAM(7M) Receiving Sensitivity Min 90CH
-74
dBm
22 DVB-C 64QAM(7M) Receiving Sensitivity Min 94CH
-74
dBm
23 AFC,
DVB-C
64QAM(7M)
200
KHz
24 AFC,
DVB-C
64QAM(7M)
-200
KHz
25 C/N with AWGN 64QAM(7M)
18
dB
26 Co CH Interference(DVB-T-PAL) 64QAM(7M)
9
dB
27
Adjacent CH Interference Lower(DVB-T-PAL)
64QAM(7M)
64QAM(7M)
35
dB
28
Adjacent CH Interference Upper(DVB-T-PAL)
64QAM(7M)
64QAM(7M)
35
dB
29 Image
Channel(n-9)
64QAM(7M)
46
dB
30 Image Channel(n+9) 64QAM(7M)
46
dB
31 Single
echo
64QAM(7M)
25
dB
32 Short delay multipath 64QAM(7M)
24
dB
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