Akai DV-R4000VSS

ALIGNMENT SET-UP PROCEDURES
TUNER SECTION
MW SECTION
EQUIPMENT CONNECTION DIAGRAM
1.
AM IF Adjustment
3.
MW Tracking Adjustment
Test point: IC401 (TA2099N) 18Pin
Test point: IC401 (TA2099N) 18Pin
Adjustment location: T405
Adjustment locaiton: T401, TC401
T405 ------------------- 450±3kHz
T401 ------------------ 600kHz waveform max.
TC401 ----------------- 1400kHz waveform max.
2.
MW Frequency Range Adjustment
Test point: C435 +
Adjustment location: T403
Set the tuner frequency to be 530kHz.
Adjust T403 so that test point voltage
is 1.7±0.05V.
3
3
2
1
1
t
e
s
t
p
o
i
n
t
T401
T
C
4
0
1
t
e
s
t
p
o
i
n
t
2
T
4
0
5
I
C
4
0
1
T
4
0
3
1
8
C
4
3
5
STS21AAST-01-04
DIGITAL MULTMETER
2CH AC VOLTMETER
OSCILLOSCOPE
OUT
A
M
/
F
M
S
T
S
G
6
0
c
m
L
O
O
P
A
N
T
IC401
18
J
K
4
0
1
8
+
STS21AAST-01-04
VOLTAGE CHART
56
55
CPU SECTION
TEST CONDITION: DVD PLAY
IC301 (TMP87EP26F)
PIN'S NUMBER 1 2 3 4 5 6 7 8 9 10
DVD PLAY 0 2.43 2.15 4.75 0 0.24 0 4.01 4.61 0
PIN'S NUMBER 11 12 13 14 15 16 17 18 19 20
DVD PLAY 0.06 0.06 0.03 3.30 0.03 4.88 0.04 4.92 4.88 4.92
PIN'S NUMBER 21 22 23 24 25 26 27 28 29 30
DVD PLAY 4.92 4.88 0 4.92 4.88 0 3.30 4.92 0.04 4.89
PIN'S NUMBER 31 32 33 34 35 36 37 38 39 40
DVD PLAY 4.88 0.04 0.03 4.88 4.84 0.04 4.88 4.88 0 2.81
PIN'S NUMBER 41 42 43 44 45 46 47 48 49 50
DVD PLAY 4.88 4.02 4.88 4.88 0 2.44 0.16 4.87 0 0
PIN'S NUMBER 51 52 53 54 55 56 57 58 59 60
DVD PLAY 4.92 / / / / / / / / /
PIN'S NUMBER 61 62 63 64 65 66 67 68 69 70
DVD PLAY / / / / / / / / / /
PIN'S NUMBER 71 72 73 74 75 76 77 78 79 80
DVD PLAY / / / / / / / / / /
PIN'S NUMBER 81 82 83 84 85 86 87 88 89 90
DVD PLAY / / / / / / / / / /
PIN'S NUMBER 91 92 93 94 95 96 97 98 99 100
DVD PLAY / / / / / / / / / 4.92
TRANSISTOR
E C B E C B
DVD PLAY 0 0.24 0 0 4.21 0
POWER AMPLIFIER SECTION
TEST CONDITION: DVD PLAY
IC606 (BU4551BF)
PIN'S NUMBER 1 2 3 4 5 6 7 8
DVD PLAY 1.18 1.59 3.05 2.08 1.75 1.72 0 0
PIN'S NUMBER 9 10 11 12 13 14 15 16
DVD PLAY 0.16 1.25 0.98 2.47 0.98 0 0 5.95
IC605 (BD3814FV)
PIN'S NUMBER 1 2 3 4 5 6 7 8 9 10
DVD PLAY 0.06 0.13 -6.95 0 0 0.08 6.50 0 0 0
PIN'S NUMBER 11 12 13 14 15 16 17 18 19 20
DVD PLAY 0 0 0 0 0 0 0 0 0 -7.85
PIN'S NUMBER 21 22 23 24 25 26 27 28 29 30
DVD PLAY 0 0 0 0 0 0 0 0 0 0
PIN'S NUMBER 31 32 33 34 35 36 37 38 39 40
DVD PLAY 0 0 0 0 -.031 0.56 1.23 0 7.32 0
IC601 (TA8216H/TA8258H)
PIN'S NUMBER 1 2 3 4 5 6
DVD PLAY 1.88 2.17 0 2.19 1.89 11.45
PIN'S NUMBER 7 8 9 10 11 12
DVD PLAY 18.1 5.09 34.25 0 7.34 17.85
Q301(3DG1417) Q302(DTC114ES)