Read Harman Kardon BDT 30MKII BK Service Manual online
A
A
B
B
C
C
D
D
E
E
4
4
3
3
2
2
1
1
BE RS232 SW Debug JACK
{LCDRD, ETTXEN} = 0 , Normal mode
{LCDRD, ETTXEN} = 1 , RST by SVO mode
{LCDRD, ETTXEN} = 2 , Monitor mode
{LCDRD, ETTXEN} = 3 , Test scan mode
{LCDRD, ETTXEN} = 1 , RST by SVO mode
{LCDRD, ETTXEN} = 2 , Monitor mode
{LCDRD, ETTXEN} = 3 , Test scan mode
pcb TOP VFD/IR Port TESET point
TO VFD BOARD
FAN CONTROL
FAN DIRIVE
UARXD
UATXD
IR
VCLK
VSTB
DVCC33_IO_STB
OPWRSB
GPIO8_AO2LRCK
AVDD33_LDO
ETMDC_AO2BCK
AVDD33_LDO
ETRXER_AO2SDATA1
ETRXDV_AO2SDATA3
ETMDIO_AO2MCK
ETTXEN_VOUTD14
UARXD
UATXD
DVCC33_IO_STB
VDATA
AVDD10_LDO
LCDRD
ETCRS_AO2SDATA2
ETTXER_AO2SDATA0
RESET_
LCDRD
ETTXEN_VOUTD14
POWER_K
KEY1
PCON
VCLK
VDATA
VSTB
KEY1
KEY2
KEY3
KEY2
KEY3
FAN
VFD_RST
POWER_K
IR
VSTB
VCLK
VDATA
+12V_D
VFD_RST
thermal sensor
GND
VCC_D
VCC
VCC
VCC
FAN
FAN
thermal sensor
3.3V_STBY
3.3V_STBY
3.3V_STBY
3.3V_STBY
3.3V_STBY
3.3V_STBY
+12V_D
VCC
+12V_D
VCC_D
RESET_
2
OPWRSB
2
POWER_K
2
CEC
5
PCON
2
C
512
0.
1uF
/50V/
Y5V
/50V/
Y5V
C
512
0.
1uF
/50V/
Y5V
/50V/
Y5V
TP40
TP40
C
196
27pF
/50V/
N
N
P0
C
196
27pF
/50V/
N
N
P0
XP25
2PIN/2.0mm
XP25
2PIN/2.0mm
1
1
2
2
R151
10K
R151
10K
TP37
TP37
C
197
27pF
/50V/
N
N
P0
C
197
27pF
/50V/
N
N
P0
VSTB1
VSTB1
CON1
4PIN/2.0mm
CON1
4PIN/2.0mm
1
1
2
2
3
3
4
4
U7D
MT8555_0825_A
U7D
MT8555_0825_A
DVCC33_IO_STB
J21
DVCC33_IO_STB
H21
AVDD33_LDO
J24
AVDD10_LDO
K21
AVSS33_LDO
H22
GPIO8
H24
ETCOL
J27
ETCRS
F26
ETMDC
J28
ETMDIO
J26
ETRXCLK
G26
ETRXD0
F25
ETRXD1
G27
ETRXD2
G28
ETRXD3
G25
ETRXDV
E25
ETRXER
E26
ETTXCLK
G24
ETTXD0
G23
ETTXD1
H23
ETTXD2
J23
ETTXD3
H26
ETTXEN
H25
ETTXER
F24
UARXD
J25
UATXD
K26
VSTB
L25
VDATA
M23
VCLK
M24
LCDRD
L26
IR
K25
RESET_
K23
OPWRSB
K24
R522
3.3K
R522
3.3K
VDATA1
VDATA1
+
100uF/16V
CE410
+
100uF/16V
CE410
C187
NC
C187
NC
C
193
N
C
/27pF
/50V/
N
N
P0
C
193
N
C
/27pF
/50V/
N
N
P0
R141
4.7K
R141
4.7K
C6
0.1uF/25V
C6
0.1uF/25V
R152
10K
R152
10K
C
195
27pF
/50V/
N
N
P0
C
195
27pF
/50V/
N
N
P0
XP15
14PIN/2.0mm
XP15
14PIN/2.0mm
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
13
13
14
14
Q259
NPN_3DG3904M
Q259
NPN_3DG3904M
TP39
TP39
C192
0.1uF/16V/X7R
C192
0.1uF/16V/X7R
R153
10K
R153
10K
TP41
TP41
R241
240
R241
240
TP36
TP36
R68
4.7K
R68
4.7K
TP35
TP35
R71
1K
1K
R71
1K
1K
C
513
0.
1uF
/16V/
X7R
/16V/
X7R
C
513
0.
1uF
/16V/
X7R
/16V/
X7R
C9
0.1uF/25V
C9
0.1uF/25V
C186
0.1uF/16V/X7R
C186
0.1uF/16V/X7R
R150
10K
R150
10K
R
146
10K
R
146
10K
XP24
2PIN/2.0mm
XP24
2PIN/2.0mm
1
1
2
2
C191
NC
C191
NC
R142
NC/33
R142
NC/33
C
198
27pF
/50V/
N
N
P0
C
198
27pF
/50V/
N
N
P0
VCLK1
VCLK1
C
194
N
C
/27pF
/50V/
N
N
P0
C
194
N
C
/27pF
/50V/
N
N
P0
R
138
10K
R
138
10K
TP38
TP38
C504
0.1uF/16V/X7R
C504
0.1uF/16V/X7R
C188
NC
C188
NC
C507
0.1uF/16V/X7R
C507
0.1uF/16V/X7R
R240
240
R240
240
R
139
10K
R
139
10K
Main Board Circuit Diagram:VFD/IR
7-8
7-8
Harman Kardon
BDT 30MKII BK Service Manual
Page 24 of 34
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