Writing Serial Number - Kenwood KVT-915DVD Service Manual

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2003 TV DVD receiver must be writing serial number data in
the unit that compatible DVD audio format.
Kenwood serial number is 2 type of specifications detail is fol-
lowing as.
Specification of serial number for Model (destination)
Model name
VDX-09M
KVT-915DVD
KVT-915DVD
KVT-925DVD
KVT-925DVD
KVT-935DVD
KVT-935DVD
KVT-945DVD
KVT-965DVD
TE
L 13942296513
VIDEO ADJUSTMENT (X14-947, X35-428)
Item
1. 8.5V power supply
VR100 (X14-947)
2. VCO Free run
frequency
VR301(X35-428)
3-1. Initial VR position 1. Turn VR404 [BRIGHT] fully to the clockwise.
VR404,VR408,
VR407,VR401
(X14-947)
3-2. RGB AMP
VR405 (X14-947)
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.

WRITING SERIAL NUMBER

Destination Digit number
J 8
K 8
R 8
E 14
W 14
M 8
H 8
X 8
C 8
ADJUSTMENT
Adjustment method / Adjustment value
1. Connect the frequency counter to IC102 10pin between GND line.
2. Adjust VR100 so that IC102 10pin frequency is set to 450.5kHz±10Hz.
1. Connect the frequency counter to check point TP307A between GND line.
2. Adjust VR301 so that HSY (IC301 9pin) frequency is set to 15,734kHz±10Hz
(NTSC type), 15,625kHz±10Hz (PAL type).
2. Connect the frequency counter to check point TP415, TP416 and TP401 between
GND line.
3. Adjust VR408 (GAMMER0), VR407 (GAMMER2) and VR401 (CONTRAST) so that
TP voltage is set to 3.5V±0.05V.
1. Connect the oscilloscope to TP272 between GND line.
2. Adjust RGB AMP (VR405) so that 4th step from the pedestal is 3.4V±0.05V.
x ao
y
3.4V
i
8
Writing serial number (for 8 digit)
All digit data is writing for the unit.
Writing serial number (for 14 digit)
Lower 8 digit data is writing for the unit.
Alphabet character data convert to numeral character.
M → 0
N → 1
P → 2
R → 3
S → 4
T → 5
U → 6
V → 7
W → 8
X → 9
Q Q
3 6 7 1 3
u163
3.4V±0.05V
.
KVT-915DVD,925DVD,935DVD
KVT-945DVD,965DVD
2 9 9 4 2 8
1 5 0 5 8 2 9 9 4
Conditions
• Power supply : DC14.4V
• Input : AV1
• Input signal : No signal
• Input : AV1
• Input signal : 10step signal
(NTSC composite video
signal)
• Oscilloscope : 0.5V/DIV AC
m
co
9 9
2 8 9 9
25