Harman Kardon DVD 23 (serv.man10) Service Manual ▷ View online
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REVISION DATE
REV
REVISION HISTORY
1.0
1. INITIAL VERSION
1
April 30,
2005
2
3
4
5
NO.
1.1
Aug 31,
2005
1. C113 C114 were changed from 33p to 3300p
2. R65 was changed from 0R to 10k, D21/D22 were added parallel to C94/C97,
2. R65 was changed from 0R to 10k, D21/D22 were added parallel to C94/C97,
EC18/EC19 were changed from 47uF/16V to 1uF/16V for avoiding burning OPU,
change some points S5V to RF5V, add EC25 for RF5V.
3. add C329 C330 R358-R363 for ADA4410 DC off-set circuit.
4. add L301-L303 C331-C339 for video buffer.
4. add L301-L303 C331-C339 for video buffer.
1.2
Sept 14,
2005
1. change R150 from 33R to 150R in case of make noise on AMCLK
2. change R204-R219, R224-R227 to RN6-RN9, RN11
3. re-arrange the pins of CN2
4. add C137-C142 and R1 for motor driver as a option.
5. add R7 R8-R12 R99 R100 U5, delete Q11 for MCU-OFF.
6. add R364-R381 EC313-EC315 Q310-Q312, N/A C331-C339
2. change R204-R219, R224-R227 to RN6-RN9, RN11
3. re-arrange the pins of CN2
4. add C137-C142 and R1 for motor driver as a option.
5. add R7 R8-R12 R99 R100 U5, delete Q11 for MCU-OFF.
6. add R364-R381 EC313-EC315 Q310-Q312, N/A C331-C339
L301-L303 R332 R343, for adjusting the video performance.
7. delete FB301 and add U307 EC323 C340 for improving the audio performance.
8. change R307 R320 from 4.7k to 4.75k 1%, R308 R321 from 7.5k 1% to 4.75k
8. change R307 R320 from 4.7k to 4.75k 1%, R308 R321 from 7.5k 1% to 4.75k
1% to decrease the output level from 2.5V to 2V.
9. FB304 change to N/A, add R383 U309 EC328 EC329 C341 C342 for creating VIDEO 5V from 12V.
10. D301 change to N/A, add R382 for MCU-MUTE.
11. add U310 U311 EC324-EC327 as option in case of using DVD22 SMPS.
12. EC18 EC19 change from 1uF to 47uF, R304 R312 change from 650R to 680R.
13. change R51 from 3.9K to 39K, R53 from 3.3k to 33k, C88 from 473 to 472,
10. D301 change to N/A, add R382 for MCU-MUTE.
11. add U310 U311 EC324-EC327 as option in case of using DVD22 SMPS.
12. EC18 EC19 change from 1uF to 47uF, R304 R312 change from 650R to 680R.
13. change R51 from 3.9K to 39K, R53 from 3.3k to 33k, C88 from 473 to 472,
C90 from 472 to 470p.
14. change R364 from 75R to 68K, R19 from 200R to 220R.
15. EC315 change from 220uF/10V to 1500uF/6.3V in
15. EC315 change from 220uF/10V to 1500uF/6.3V in
case of losting the synchronous signal in PY channel.
Page1
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DVD23 REVISION HISTORY 051027
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Title
Size
Document Number
Rev
Date:
Sheet
of
harman/kardon
Service manual DVD23EU
Page 37 of 48
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Work light
FROM SMPS
Blue LED
short feet
4.2V(forward)
orange LED
long feet
2.2V(formard)
H=work
L=standby
standby light
1: working unit
0: unit in standby mode
standby
connect base
1824C-A
1.0
DVD23 FRONT PANEL: key board 050907
A3
15
15
Friday, January 13, 2006
Title
Size
Document Number
Rev
Date:
Sheet
of
RB4
RB1
RB6
OSCOUT
OSCIN
RB7
MCU_OFF
RB5
RA1
RA1
MCU_MUTE
RA1
RA0
MCU_OFF
RB5
IR
IR
MCU_
MUTE
VDD
GND
GND
GND
GND GND
GND
+5V
GND
+5V
GND
GND
3Y1
4 MHz
3K4
Pause
1
4
3
2
+
3C22
47uF/10V
3Q3
8550
3D9
1N4148
1
2
3R2
1K
3R22
4.7K
3R19
470R
3CB2
104
3R1
10K
3R5
4.7K
3K5
Play
1
4
3
2
3J2
7pin 1.25mm
1
2
3
4
5
6
7
3R4
120R
3K6
Prev
1
4
3
2
3C16
22pF
3R33
4.7K
3R29
4.7K N/A
3Q1
8050
3K8
Stop
1
4
3
2
3LD1
3U2
IR
3
2
1
VCC
GND
IR
3R26
4.7K
3CB3 104
3U1
CF745/PIC16F52
1
2
3
4
5
6
7
8
9
17
18
10
11
12
13
14
15
16
RA2
RA3
T0CKI
MCLK/VPP
VSS
RB0
RB1
RB2
RB3
RA0
RA1
RB4
RB5
RB6
RB7
VDD
OSC2/CLKOUT
OSC1/CLKIN
3R21
470R
3K2
Next
1
4
3
2
DOT3
1
1
3R8
100
3R27
4.7K N/A
3R24
4.7K
3FB1
L
3R3
1K
+
3C8
47uF/10V
3CB6
104
3CB1
104
3R28
4.7K N/A
3CB8
104
104
3C15
22pF
3K1
Dimmer
1
4
3
2
3R35
4.7K
CN1
PH-3A-2.0mm
1
2
3
GND
+5VDD
STANDBY
3Q2
8550
3K7
Standy_by
1
4
3
2
harman/kardon
Service manual DVD23EU
Page 38 of 48
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1824C-B
1.0
DVD23 FRONT PANEL: VFD board 050831
A3
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Friday, January 13, 2006
Title
Size
Document Number
Rev
Date:
Sheet
of
G1
AM
36
AM32
AM
37
AM
11
AM29
AM
14
AM
4
AM26
AM
12
AM
10
AM
3
AM
35
AM17
AM27
AM
6
AM25
AM18
AM
9
AM
33
AM
5
AM
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
AM
34
AM
33
AM
32
AM
31
AM
30
AM
29
AM
28
AM
27
AM
26
AM
25
AM
24
AM
23
AM
22
AM
21
AM
20
AM
19
AM
18
AM
17
AM
16
AM
15
AM
14
AM
13
AM
12
AM
11
AM
10
AM
9
AM
8
AM
7
AM
6
AM
5
AM
4
AM
3
AM
2
AM
1
AM
38
AM
37
AM
36
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
4
5
6
7
8
9
10
11
12
13
14
15
16
K1
OPEN
1
4
3
2
R3 3.3K
C1
2.2uF
LC75710NE
3U4
LC75710NE
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
AM
13
AM
14
AM
15
AM
16
AM17
AM18
AM19
AM20
AM21
AM22
AM23
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
4
16
5
6
7
8
9
10
11
12
13
14
15
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
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
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
AM
13
AM
14
AM
15
AM
16
AM
17
AM
18
AM
19
AM
20
AM
21
AM
22
AM
23
AM
24
AM
25
AM
26
AM
27
AM
28
AM
29
AM
30
AM
31
AM
32
AM
33
AM
34
AM
35
AM
36
AM
37
AM
38
harman/kardon
Service manual DVD23EU
Page 39 of 48
Mute logic circuit
ESD protection for USB port
go to Mainboard
LOCATION-PAD
1826C
1.2
AV BOARD: AUDIO OUTPUT 051006
A3
12
15
Friday, December 02, 2005
Title
Size
Document Number
Rev
Date:
Sheet
of
VOUTR
HW_MUTE
MUTE_AUDIO
A+5V
USB5V
+5VON
+12V
VOUTL
DOWNMIX_R
USB5V
DP1
DM1
DP1
DP1
DM1
DM1
HW_MUTE
DATA/SDA
ADATA2
AMCLK
ADATA1
MCU_MUTE
CLOCK/SCL
ADATA0
ALRCK
ASCLK
DM2
DP2
DM2
USB5V
DP2
DP2
DM2
DM2
DP1
DP2
DM1
ML
DOWNMIX_L
5VON
-12V
USB5V
ALRCK
VOUTR
ASCLK
VOUTL
MD
MC
ML
DATA/SDA
CLOCK/SCL
ADATA0
AMCLK
3.3V
MCU_MUTE
+12V
-12V
IR_IN
D+12V
D-12V
VIDEO5V
SCART_R
SCART_L
A+5V
D+12V
D-12V
DGND
DGND
DGND
DGND
DGND
DGND
DGND
D-12V
5VON
D-12V
D+12V
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
5VON
DGND
DGND
DGND
DGND
DGND
3.3V
3.3V
AVDD
DGND
DGND
DGND
DGND
DGND
DGND
DGND
AVDD
DGND
D+12V
DGND
DGND
D+12V
D-12V
DGND
DGND
DGND
DGND
DGND
EC327
100uF/25V N/A
C301 102 NPO
FB302
50R
R307
4.75K 1%
R318
10K
FB304
50R N/A
C
B
E
3
2
1
Q304
8550
EC309
10U/10V
R308
4.75k 1%
EC307
47uF/25V
R317
4.7K
C304
104
C305
104
C
B
E
4.7K
3
2
1
Q302
DTC343TK
R304
680R
C309
104
D303
1N4148
R324
390R
R330
270R
EC308
47uF/25V
R310
4.7K
R312
680R
Input
Output
J303
SCJ351P00XS0B00
5
6
1
4
3
2
V- V+
U302
LM833M
2
3
6
5
1
7
4
8
R329
10K
R319
10K
EC304
220uF/10V
FB305
50R
R325
4.7K
R313
330R
R327
4.7K
R301
330R
R306
10K
C
B
E
3
2
1
Q303
8550
U307
78L05
3
2
1
IN
GND
OUT
U301
WM8728
1
15
20
19
11
7
18
17
6
4
3
5
16
12
8
2
13
9
14
10
LRCIN
CSBIWL
LATI2S
SCKDSD
VOUTL
DVDD
SDIDEM
MUTEB
DGND
MCLK
BCKIN
ZERO
MODE
VMID
VOUTR
DIN
VREFN
AGND
VREFP
AVDD
R303
1.78k 1%
C340
104
U304
RClamp0514M
1
2
3
4
5
6
7
8
9
10
1
2
VCC
4
5
6
7
GND
9
10
EC323
100uF/25V
CN305
16pin 1.0mm
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
C
B
E
4.7K
3
2
1
Q301
DTC343TK
D301
1N4148 N/A
G302 install hole
1 2 3 4 5 6 7 8 9 10 11
GND GND GND GND GND GND GND GND GND GND GND
RN301
10RX4
1 2
3 4
5 6
7 8
C310
104
EC306
47uF/16V
G301 install hole
1 2 3 4 5 6 7 8 9 10 11
GND GND GND GND GND GND GND GND GND GND GND
C312
104
EC305
47uF/16V
D302
1N4148
R302
330R
U305
PC817
2
1
4
3
R316
7.50k 1%
R320
4.75K 1%
R
GND
L
TOP VIEW
J307
STEREO AUDIO OUTPUT
2
1
3
C302 100p NPO
EC303
100uF/10V
R305
330R
R322
10K
R309
10K
C303
104
C306
680p NPO
R311
7.50k 1%
EC302
47uF/16V
EC301
47uF/16V
R321
4.75k 1%
R328
10K
CN303
4pin 2.0mm
1
2
3
4
CN302
4pin 2.0mm
1
2
3
4
R382
0R
R315
10K
C308
680p NPO
CN301
11pin 2.0mm
1
2
3
4
5
6
7
8
9
10
11
U303
RClamp0514M
1
2
3
4
5
6
7
8
9
10
1
2
VCC
4
5
6
7
GND
9
10
R323
2.2K
R326
4.7M N/A
FB303
50R
R314
1.78k 1%
EC310
47uF/10V
C311 100p NPO
J302
USB-A-05
2
1
3
4
5 6
7 8
GND
D+
D-
+5V
GND GND
GND GND
C307
102 NPO
EC326
100uF/25V N/A
J301
USB-A-05
2
1
3
4
5 6
7 8
GND
D+
D-
+5V
GND GND
GND GND
U311
79L12 N/A
2
1
3
IN
GND
OUT
EC325
100uF/25V N/A
U310
L7812 N/A
1
2
3
IN
GND
OUT
EC324
100uF/25V N/A
harman/kardon
Service manual DVD23EU
Page 40 of 48
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