Read Harman Kardon DVD 23 (serv.man10) Service Manual online
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1
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D
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1824C-B
1.0
DVD23 FRONT PANEL: VFD board 050831
A3
15
15
Friday, January 13, 2006
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Size
Document Number
Rev
Date:
Sheet
of
G1
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36
AM32
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11
AM29
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AM26
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35
AM17
AM27
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6
AM25
AM18
AM
9
AM
33
AM
5
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16
AM31
AM
1
AM
38
AM19
AM21
AM28
AM24
AM
8
AM22
AM
2
AM20
AM30
AM
15
AM
34
AM
7
AM23
AM
13
G9
G7
G5
G1
0
G6
G1
1
G2
G3
G1
2
G8
G1
3
G4
AM
35
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34
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AM
38
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G1
3
G1
2
G1
1
G1
0
G9
G8
G7
G6
G5
G4
G3
G2
G1
VFD_STB
DATA/SDA
CLOCK/SCL
IR
MCU_OFF
IR_IN
MCU_MUTE
AC1
-29V
AC2
+3.3V
+3.3V
VFD_STB
DATA/SDA
AC2
MCU-MUT
IR_IN
MCU_OFF
AC1
-29V
CLOCK/SDA
IR
RA1
RB5
GND
GND
GND
+3.3V
GND
GND
CB1
47uF/50V
J2
16pin 1.25mm
1
2
3
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K1
OPEN
1
4
3
2
R3 3.3K
C1
2.2uF
LC75710NE
3U4
LC75710NE
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AM24
AM25
AM26
AM27
AM28
AM29
AM30
AM31
AM32
AM
33
AM
34
AM
35
AA1
AA2
AA3
AA4/G16
AA5/G15
AA6/G14
AA7/G13
AA8/G12
G1
1
G1
0
G9
G8
G7
G6
G5
G4
G3
G2
G1
VFL
TEST
VSS
SOCO
OSCI
VDD
RES
FCS
CLK
DATAI
C4
104
R2
22K
C3
47pF
D1
1N4148
C5 104
J1
7pin 1.25mm
1
2
3
4
5
6
7
VFD 5*7 DOT MATRIX
1G
11G
2G
3G
7G
8G
9G
10G
12G
13G
5G
6G
4G
VFD1
55 54
2 1
3
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16
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53
AC4 AC3
AC2 AC1
G1
G2
AM
1
G3
G4
G5
G6
G7
G8
G9
G1
0
G1
1
G1
2
G1
3
AM
2
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harman/kardon
Service manual DVD23EU
Page 39 of 48
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