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5
6. ADJUSTMENT
QQ
3 7 63 1515 0
6.1 TUJB ASSY ADJUSTMENT
No.
Adjustment Name
VCO freerun frequency (AFC voltage)
adjustment
1
AGC start point adjustment
2
Note 1 : The adjustment spec. is defined without the thermal drift after the power on.
Therefore, start the adjustment at least 10 minutes after the power on.
B
TUJB ASSY
TE
L 13942296513
KN2007
JA3081
JA2201
C2642
R9004
R9005
C3083
R9006
CN2006
Q2640
KN2003
+
+
C2544
C2553
1
1
IC2541
R2551
C2153
6
6
4
4
C2152
1
1
3
3
R2005
R2145
R2119
116
R2007
116
X2001
30
30
R2209
C2101
C2104
R2011
C2105
C2103
R2012
C2106
R2013
C2102
CONTACT UPPER SIDE
CN3002
1
1
www
.
5
http://www.xiaoyu163.com
* It is not necessary to adjust the ASSY normaly when exchanging the ASSY. But the adjustment is
necessary when exchanging the Tuner Module and IC3003 VIF/SIF IC.
Adj. Point Measurement Point Adjustment Value
L4002
VR3901
5
1
2
7
8
4
3
10
9
JA3582
V+13SW
C3533
V+6SW
CMKD-P3X
ST2271
BT2271
-
-
V+5VO
CN211
15
1
R2315
C2254
IC2351
R2205
Q2306
R2357
C2302
C2357
R2311
C2351
9
9
R2355
Q2351
CN2007
X2351
C2353
L2301
C2140
R2146
8
8
C2204
IC2003
14
8
14
8
1
1
C2082
88
88
1
7
1
7
R2059
58
58
TUJB ASSY
C2118
V+6E
V+13SW
CN2004
CN2001
13
1
1 2
13
15
15
Fig.1 Adjustment Points (TUJB ASSY)
x
ao
y
i
http://www.xiaoyu163.com
6
8
The solder land named
1.90V ± 0.20V
"AFT2" (upper side)
Q3901-Emitter
Note1
3.80V ± 0.20V
CN3003 Pin1
(AGC)
14
Q Q
14
5
1
2
3
6 7
1 3
7
8
13
12
15
18
13
4
3
6
10
R3597
R3599
9
JA3551
Q3554
11
C3552
C3554
Q3556
R3561
Q3565
C3310
C3364
Q3564
C203
WARNING
C3641
THIS PRODUCT CONTAINS LEAD IN SOLDER
AND CERTAIN ELECTRICAL PARTS CONTAIN
CHEMICALS WHITCH ARE KNOWN TO THE STATE
OF CALIFORNIA TO CAUSE CANCER,BIRTH
DEFECTS OR OTHER REPRODUCTIVE HARM.
HEALTH & SAFETY CODE SECTION
25249.6 - PROPOSITION 65
35
34
R2318
R2317
R3351
CN3003 Pin1
R3350
R3357
5
5
C3353
IC2251
4
4
R3342
C3346
C3343
C3344
CN2005
10
V+5E
1
19
1
19
19
C2516
CN2009
PC
C B2 E2
FC DC
E B C2
u163
.
DVR-3100-S
6
7
2 9
9 4
2 8
Adjustment State
Terrestrial tuner input /through output.
Any channel, RF Input ≥ 60dBu
System = B/G, I or D/K
Manual Adjust (in GUI of Manual Ch
Setting) = ON
Note1
Terrestrial tuner input
Ch = E9(203.25MHz), Video= Blackburst
RF Input = 60.0 ± 1.0dBu
System = B/G, I or D/K
1 5
0 5
8
2 9
9 4
AFC
AFT2
Adjust
AFT2
12
15
18
L4002
JA2832
1 2
L4002
C2813
F3901
L`AFC
Adjust
VR3902
ARM2T
CVBS2
C2815
R3998
CN210
1
2
R4006
R4008
R4007
Q4001
C4016
Q4004
C4028
R4019
Q3404
R4018
R3452
R3420
R3454
R3457
C4012
R3423
L3451
R3456
V+6E
V+13SW
CN2008
CN2003
V+6SW
1
1
1
1
19
21
V+37E
m
co
7
8
9 9
A
B
SIDE A
C
C3201
2 8
AGC
9 9
Adjust
6
4
C3010
VR3901
3
VR3901
R3908
R3915
C3099
F3902
R3930
C3013
R3925
C3015
D
C3006
C3022
C3928
C3933
C3936
C3934
L3910
L3912
C3026
R3942
R4016
C4023
C4026
R3941
R4012
C3029
34
44
C4020
34
44
C4011
C4006
C4014
C3001
C4002
C4009
C4007
C4004
C3009
C4013
C2584
C4033
IC2581
E
C2582
KN2001
CN3001
32
32
F
71
8
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