Harman Kardon AVR 254, Service Manual

Page: 38 / 189

08.02.25
S.H.Yang G.S.Wey
AVR254/255/354/355
W.Y.Yang
1
A
B
C
D
1 2 3 4 5 6
D
C
B
A
REVISION
1
2
3
4
5
6
7
MODEL
DESIGN CHECK APPROVE DRAWING NO
1
1
1
SHEET
SCHEMATIC DIAGRAM
24.576MHz
TONE
+
-
-
+
TONE
AT
T
RT LT
XM IN
ANALOG FRONT IN
ANALOG 2 OUT
iPod IN
ANALOG 2 IN
ANALOG 3 IN
ANALOG 4 OUT
ANALOG 4 IN
ANALOG 5 IN
MULTI_OUT
CEN/SUB
SBL/R
SL/R
FL/R
+6dB
COMPO
INPUT1 INPUT2
COMPO
Y
Cb
Cr
Y
Cb
Cr
HDMI_SPDIF
HDMI_OUT HDMI_IN3 HDMI_IN1
SII9134
SII9185
XM_MCK
XM_BICK
XM_LRCK
XM_DAT
2
C
H DAC
AK
4384
D-
D+
XM_R
XM_L
XM
_DT
M
O
DUL
E
XM
_RADI
O
REMOTE IN
REMOTE OUT
TUNER
MODULE TUNER CONT
TUNER L/R
TO FUNCTION SEL
16BIT u-COM
P
O
W
E
R DO
W
N
ST
AN
DBY
REM
O
T
E
EN
C
VR EN
C
KE
Y
V
F
D
CONTR
O
L
CARR. OUT
REMOTE IN
DI
R C
O
N
T
D
S
P CONT
F
U
NC.
S
W
CONT
V
O
L
CONT
MU
TE
CONT
PH
D
E
T
TU
NE
R
CONT
RST IC
POWER AMP CONT
ZONE2 IN
CARR. OUT
COAX OUT
OPT.2
OPT.3
COAX.1
RLRCK
RBCK
RDATA
RMCK
CMPREQ
CMPCLK
CMPDAT
CLKIN
DO
DIR CONT
DIN
XI
N
XO
UT
DOUT
ADUT
A1
+
ADUT
A1
-
ADUT
B1
+
ADUT
B1
-
ADUT
A2
+
ADUT
A2
-
ADUT
B2
+
ADUT
B2
-
ADUT
A3
+
ADUT
A3
-
ADUT
B3
+
ADUT
B3
-
ADUT
B4
-
ADUT
B4
+
A/D, D/A CONVERTER WITH DIR
CS42528
MCL
K
ADDRESS&DATA
XMCK
LT AINR
AINL
CS497004
AUDAT
A
0
AUDAT
A
1
AUDAT
A
2
AUDAT
A
3
SC
LK
0
LR
C
LK
0
LR
C
LK
1
SC
LK
1
SDI
N
4
SDI
N
3
SDI
N
2
SDI
N
1
MULTI_IR IN
A-BUS_IR OUT
OPT.1
ST232CDR
R
S
232C
16M SDRAM
CONT
CONT
CONT
COMPOSITE 1 IN
COMPOSITE 2 IN
COMPOSITE 2 OUT
C
C
C
C
Y
Y
Y
Y
NJM2595
+6dB DRV
+6dB DRV
+6dB DRV
+6dB DRV
NJM2595
V3
V2
V1
NJM2595
+6dB
+6dB
DRV
DRV
DRV
Y1
Cr1
Cb1
COMPOSITE FRONT IN
RST
XMCK
D_SW
D
_
CNT
D_SBL D_SBR D_SL
MAIN AMP
MUTE
POWER
CEN
SURR R
SURR L
FRONT R
FRONT L
P_LINE_FAIL
REGULATOR
+9VDH
+5VD
(+5V)
REGULATOR
-15V
+15V
( 15V)
REGULATOR
-VCC1
+VCC1
UNBAL
DETECT
FL FL +VKK
CEN
SR
SL
SBR/ZONE2 RIGHT
SBL/ZONE2 LEFT
FR
FL
P-AMP
+29dB
+29dB
P-AMP
+29dB
P-AMP
P-AMP
+29dB
P-AMP
+29dB
P-AMP
+29dB
+29dB
P-AMP
H_PHONE OUT
SUB TRANS
POWER S/W
AC OUTLET
ST
AN
DBY
+5VL REG
PWR DOWN
+12V
+5VL
P-DOWN
AC IN
FL DISPLAY
KEY0~2
KEY MATRIX
VR EN
C
ST
AN
DBY
ROTARY
(MASTER VR)
REMOTE SENSOR
ENCODER
OPT.
F
R
ONT
S-
VI
DEO
FRO
N
T
AN
ALO
G
FRO
N
T
FRONT L
+
-
-
+
+
-
-
+
+
-
-
+
D_SR D_FR D_FL
D_FL D_FR
2CH
MULTI_MUTE * 2EA
FRONT R
D_SL D_SR
D
_
CNT
D_SW
D_SBL D_SBR
DATA CLOCK
SURR L
SURR R
CEN
SUBWOOFER
VOL
NJW1197FC2
PRE-OUT
PRE AMP
PRE AMP
PRE AMP
PRE AMP
PRE AMP
PRE AMP
PRE AMP
PRE AMP
Temp. Sensor
DC/OVER CURRENT
SENS
TEMP I/F
HEAT2
TOSHIBA
TO TORINO PART
TO DSP PART
** EEP_ROM **
VOLUME Indicator
ALL version
has TUNER module.
08.02.25 08.02.25
NJW1159
USA VER. ONLY
+8dB
HP_AMP
AMP
ANALOG 1 IN
C
O
AX.
FRO
N
T
(BLUE)
MOMS SWITCH
AM
BER/
BLUE
FOR BACK-UP MEMORY.
RT
COAX.2
COMPOSITE 3 IN
S-VIDEO 2 IN
S-VIDEO 2 OUT
S-VIDEO 1 IN
S-VIDEO 3 IN
V1
V2
V3
V1
V2
V3
FRONT VIDEO
A-BUS OUT
6dB AMP
Y2
Cb2
Cr2
ADV7342
NJM2566
TORINO
FLI30336
I2
C &
G
P
IO
CONTR
O
L
I2
C &
G
P
IO
CONTR
O
L
DIGITAL VIDEO
MAX : 1080p
COMMUNICATION BETWEEN TORINO & TOSHIBA MCU
COMPOSITE MONITOR OUT
Y
C
DETECT
UNBAL
+VCC2
-VCC2
BLOCK DIAGRAM
2024BLDZ
AVR254/255/354/355 BLOCK DIAGRAM
M/P
ISSUE
ANAM
MULTI. LAB
2008.02.25
PROTECT
(+5V)
REGULATOR
(+9V)
+9VDH
TO XM PART
+5.3V
Y
Cb
Cr
CVBS
S-VID Y
S-VID C
Y3
Cb3
Cr3
COMP_Y_OUTPUT
6dB
Y
Cb
Cr
COMP
ONE
N
T
MONI
T
OR
OU
T
S-VID C_TORINO IN
S-VID Y_TORINO IN
CVBS_TORINO IN
COMP_Cb_OUTPUT
COMP_Cr_OUTPUT
Cr1/2/3_TORINO IN
Cb1/2/3_TORINO IN
Y1/2/3__TORINO IN
MIC_INPUT or
iPod TX
iPod RX
iPod L/R
iPod CVBS
iPod IN
T
H
E BRI
D
GE I
I
MIC_AMP
+40dB
HP_IN
+12V
MIC SIG.
REGULATOR
( 24V)
+24V
TO A-BUS PART
(+12V)
+12V
(TO IPOD PART)
REGULATOR
74VHC157
2CH MUX
HDMI SCLK
HDMI MCLK
HDMI LRCK
HDMI SD
HDMI MCLK
HDMI MCLK
DIR MCLK
DSP MCLK
DAOMCLK OMCK
HDM
I SD
HDM
I L
RC
K
HDM
I SC
L
K
SBL/MULTI L
SBR/MULTI R
SBL/MULTI L
SBR/MULTI R
HDMI_IN2
THE BRIDGE II
FROM FRONT
THE BRIDGE II IN FROM THE BRIDGE II
FRONT VIDEO
AVR354 & 355 OPTION
AVR354 & 355 OPTION
FRONT VIDEO
FROM FRONT
Y
C
( iPod ) ( iPod CVBS )
VIDEO SWITCHING CONTROL BY MCU
( i
P
od )
TMP86F409NG
(8BIT u-COM for iPod)
iPod CONT
iPod CVBS
AVR354 & 355 OPTION
STEREO or iPod IN
USA VER. ONLY
AN
ALO
G
AUDI
O
6/
8 C
H
AN
N
E
L I
N
P
U
T
AVR354&355 OPTION
AVR355 OPTION
COMPO
INPUT3
AVR
354 & 355 O
P
T
IO
N
NJM2566 ANALOG OUTPUT
S-VIDEO MONITOR OUT
NJM2566 ANALOG OUTPUT
FLI30336 ANALOG INPUT
FLI30336 ANALOG INPUT
FLI30336 ANALOG INPUT
FLI30336 ANALOG INPUT
A-BUS IR IN
COAX.&OPT. FRONT
S-VIDEO FRONT IN
COMPOS
IT
E
F
R
ONT
SII9135
(HDMI RX)
(HDMI TX)
(SW IC)
(SCALER) (DAC)
TO DSP PART
TO VIDEO PART
(+9V)
REGULATOR
(-5V)
+9V
-9V
+5V
TO VIDEO PART
(TO VIDEO PART)
TO VIDEO PART
(+1.8V)
REGULATOR
(+5V)
(+1.8V)
+5V
+1.8V
TO TORINO PART
SDRAM
32M
ST232CDR
RS232C
DDR SDRAM
256M * 2EA
6CH VIDEO OUT
S-VID C_OUT
S-VID Y_OUT
CVBS_OUT
Cr_OUT
Cb_OUT
Y_OUT
iPod Buffer IC CONT
UART RX/TX
VIDEO SWITCHING CONT
R
D
S
CONT
X
M
CONT
M12L16161A
EEPROM (32 Kbit)
DSP
SPI Serial Flash
8 Mbit
CONTR
O
L
B
Y
D
A
C
I2S
I2S
I2S
I2S
I2S
I2S/DSP_SPDIF
I2
S/
DSP
_SP
DI
F
1
2
3
4
5
6
+
-
-
+
+
-
+
-
1
2
3
4
5
6
7
8
9
10
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