Cambridge Audio Azur 351R User manual

Service Manual
Azur 351R AV Receiver
Issue date: February 2013
PRELIMINARY
Specifications
Azur 351R AV Receiver
Audio
Power Output All Channels : 70 watts rms per channel, 8 ohms (two channels driven)
All Channels : 50 watts rms per channel, 8 ohms (all 5 channels driven)
THD <0.006% @1kHz
Crosstalk <-60dB @ 1kHz
Frequency response 10Hz - 20kHz -1dB
S/N Ratio >80dB ‘A’ weighted
Audio Input Impedance / Sensitivity 47kOhms / 175mV or greater
Digital Input Impedance 75 ohms (Coaxial/S/P DIF)
Tone Control
- Bass +/-10dB @ 100Hz
- Treble +/-10dB @ 10kHz
Tuner
- FM mode 87.5-108MHz, 75 ohm coaxial aerial
HDMI
HDMI 1.4
EIA/CEA - 861D
HDCP 1.1
All audio modes supported except reception of native Direct Stream Digital (DSD). ARC and 3D-TV/deep colour pass through
supported. CEC and HEC not supported. (except as necessary for ARC)
General
Architecture Cirrus Logic CS42518 24 Bit 192kHz capable CODEC for surround channels
+ 24 Bit 2 channel A/D conversion
Cirrus Logic CS497024 Dual 32 Bit DSP for surround decoding
Audio Inputs 4 Line Level Analogue, FM Tuner, 2 Digital Co-axial, 1 Digital Optical
Video Inputs 4 HDMI (1.4a)
Main Audio Outputs 5 Amplified Speaer Outputs
1 RCA/Phono subwoofer output
Main Video Output 1 HDMI (1.4a)
Recording Audio Outputs 1 Line Level Analogue
Other connections 1 ¼” / 6.35mm Headphone Output (32 To 600 ohms recommended)
1 RS232C 1
IEC type mains inlet
Standby power consumption <0.5w
Max power consumption 500w
Dimensions - H x W x D 100 x 430 x 330mm
Weight 8.2kg (18lbs)

2
TABLE OF CONTENTS
Specifications 3
Table of Contents 2
Front Panel Connections 4
Rear Panel Connections 5
Remote Control 6
Front Panel Exploded Diagram 8
Amp PCB Exploded Diagram 10
Lid Exploded Diagram 11
Bottom Exploded Diagram 12
Amp PCB Schematic 14
Amp PCB Gerber 16
Amp PCB BOM 17
MCU Schematic 19
MCU Gerber 22
MCU BOM 24
HDMI Schematic 27
HDMI Gerber 29
HDMI BOM 31
SMPS Schematic 33
SMPS Gerber 34
SMPS BOM 35
Display Schematic 36
Display Gerber 37
Display BOM 38
Phones Schematic 39
Phones Gerber 40
Phones BOM 42
RS32 Schematic 43
RS32 Gerber 44
RS32 BOM 46

Azur 351RService Manual
3
Technical specications
Audio
Power Output All Channels : 70 watts rms per channel,
8 ohms (two channels driven)
All Channels : 50 watts rms per channel,
8 ohms (all 5 channels driven)
THD <0.006% @1kHz
Crosstalk <-60dB @ 1kHz
Frequency response 10Hz - 20kHz -1dB
S/N Ratio >80dB 'A' weighted
Audio Input Impedance / 47kOhms / 175mV or greater
Sensitivity
Digital Input Impedance 75 ohms (Coaxial/S/P DIF)
Tone Control
- Bass +/-10dB @ 100Hz
- Treble +/-10dB @ 10kHz
Tuner
- FM mode 87.5-108MHz, 75 ohm coaxial aerial
HDMI
HDMI 1.4
EIA/CEA - 861D
HDCP 1.1
All audio modes supported except reception of native Direct Stream Digital
(DSD).
ARC and 3D-TV/deep colour pass through supported.
CEC and HEC not supported. (except as necessary for ARC)
General
Architecture Cirrus Logic CS42518 24 Bit 192kHz
capable CODEC for surround channels +
24 Bit 2 channel A/D conversion
Cirrus Logic CS497024 Dual 32 Bit DSP
for surround decoding
Audio Inputs 4 Line Level Analogue, FM Tuner, 2 Digital
Co-axial, 1 Digital Optical
Video Inputs 4 HDMI (1.4a)
Main Audio Outputs 5 Amplied Speaker Outputs
1 RCA/Phono subwoofer output
Main Video Output 1 HDMI (1.4a)
Recording Audio Outputs 1 Line Level Analogue
Other connections 1 ¼" / 6.35mm Headphone Output
(32 To 600 ohms recommended)
1 RS232C
1 IEC type mains inlet
Standby power consumption <0.5w
Max power consumption 500w
Dimensions - H x W x D 100 x 430 x 330mm
Weight 8.2kg (18lbs)
2

4
1Standby/On
Switches the unit between Standby mode (indicated by a dim power LED) and
On (indicated by a bright power LED). Standby is an eco-friendly <0.5W low
power mode. The unit may be left in Standby mode when not in use.
Note: This product has APD (Auto Power Down) enabled as default. After a
period of inactivity, the product will automatically switch to Standby.
2Phones
Allows for the connection of stereo headphones with a 6.35mm/¼" Jack
plug. Headphones with an impedance of between 32 and 600 ohms are
recommended.
Note: Plugging in headphones will automatically mute the main output and
select a 2-channel stereo down-mix to be created for headphone use.
3Tuning +/-
Used to tune FM frequencies and skip presets for the built-in FM Tuner.
4Mode/Store
Press to cycle between Tuner modes. Press and hold for storing presets (refer
to the 'Operating Instructions' of this manual for more information).
5Display
Displays the status of the unit.
6FM tuner
Press to select the built-in FM tuner.
7BD/DVD
Press to select the source equipment connected to the BD/DVD input.
8CD/Video 1
Press to select the source equipment connected to the CD/Video 1 Input.
9 Video 2
Press to select the source equipment connected to the Video 2 input.
10 Aux/TV
Press to select the source equipment connected to the Aux input.
With ARC enabled (see later section), press again to select Audio Return
Channel from a suitable TV.
11 Analogue stereo direct
Press to listen directly to the analogue inputs for the current source directly
with no analogue to digital conversion or DSP processing for highest possible
stereo sound quality.
Note: The 351R remembers the audio and video input type and processing
mode for each individual source input. These are recalled each time a source
is selected.
12 Audio input type
Press this button to select between analogue, digital (optical/coaxial) or HDMI
input types as the source of the audio for the currently selected source input.
The choices available depend on the inputs that have been assigned to that
source, see later section.
13 Stereo modes
Press to listen to a source in either digitally processed stereo or stereo and
sub modes.
14 Surround modes
Press to select Dolby Digital or DTS surround modes (with suitably encoded
digital source material), or various Pro Logic II or DTS Neo:6 modes for matrix
encoded analogue or digital material.
15 Info
Press to re-display the current decoding mode.
16 Mute
Press to mute the sound from the main outputs of the 351R. Press again to
cancel mute.
Note: Selecting a new source always cancels mute.
17 Infrared sensor
Receives IR commands from the supplied remote control. A clear, unobstructed
line of sight between the remote control and the sensor is required.
18 Volume
Use to increase/decrease the level of the sound from the outputs of the
351R.
19 Mic input
Used for the CAMCAS auto setup. Use the supplied microphone only!
Front panel connections
1 3 4
6
5
2
7 11
12 13 14 15 16 17
9
18
19
810
3

Azur 351RService Manual
5
Rear panel connections
1Service/Normal
For dealer use only - Switches the 351R between normal (default) mode
and Service mode. Do not change the mode to service or make RS232
connections to it in service mode as damage may result!
2Digital inputs
S/P DIF or Toslink digital inputs.
These inputs can be freely assigned, see later section on assigning the digital
inputs.
3& 4HDMI
Inputs and output to a suitable TV/Monitor.
5 RS232C
Used for control of the 351R in Custom Install situations. A full protocol is
available for the 351R on our website.
6FM antenna
The tuner antenna connection is made here. Refer to the 'Antenna Connection'
section of this manual for more information.
7& 9Analogue audio inputs
For use with the line level outputs of CD players, BD/DVD players etc.
8Record Out
These output sockets can be connected to a tape deck or to the analogue
Record In sockets on a MiniDisc or CD recorder.
10 Subwoofer Out
For connection of a powered subwoofer.
11 Speaker terminals
Connect to loudspeakers with an impedance of 8 ohms.
12 Power On/Off
Switches the unit on and off.
13 Mains voltage selector switch
Switches the mains voltage between 115V and 220-230V. For use by
installer/dealer only.
14 Mains power lead
Once you have completed all connections, plug the AC power lead into an
appropriate mains socket. The AV receiver is now ready for use.
3
5
6
7 8 9 10 11
2
412
14
13
1
4

6
Info
Stereo
Modes Analog Stereo Direct
Store Mode
Surround
Modes
Enter
Vol
Vol
Lip
Sync Bass/ Treble
Audio In
Type
FM Tuner
Aux/TV
BD/DVD
Remote control
The 351R is supplied with a dedicated remote control. Insert
the supplied AAA batteries to use. For full details of the
various adjustment functions available from the remote, refer
to the later sections of this manual.
The handset buttons function as described in the following
paragraphs.
Mute
Mutes the audio on the AV Receiver. Press again to cancel
mute.
Standby/On
Switches the unit between Standby mode and On.
Press the corresponding button to change the input source.
Pressing the Aux/TV button a second time if ARC is enable
selects TV-ARC (Audio Return Channel). See later section.
Stereo mono
When listening to the FM tuner, press to alternate between
stereo and mono modes.
Store
Press to store the current frequency when in Tuner mode.
Mode
Press to select Auto/Manual or Preset tuning when in Tuner
mode.
Info
Press to view the current source material and decoding mode.
When listening to FM with RDS, press to cycle round various
RDS information modes.
On-Screen Display (OSD)
Press to turn on and off the on-screen setup menus for display
on your monitor/screen.
Stereo modes
Selects Stereo or Stereo + Sub modes for Analogue or Digital
sources (digitally processed).
Surround modes
Selects digital surround processing modes and various matrix
encoded surround processing modes for analogue or digital
sources (digitally processed).
Analogue stereo direct
Directly selects a stereo analogue input for the current source with no A/D
conversion or DSP processing.
Volume Up/Down
Volume adjustment.
Tune/Left & Right
Press the right arrow to increase tuner frequency/change preset. Press the
left arrow to decrease tuner frequency/change preset. Also used to scroll
left/right in the OSD setup menus.
Enter
Used in the OSD setup menus.
Audio In type
Switches the audio between the types available for the current
source. Depending on the source selected and whether you
have assigned a digital input to it, Analogue, Digital and HDMI
can be available.
Lip sync
Press to activate and adjust the lip sync delay function if the
audio and video appear out of sync. While the Lip sync delay
status is shown on the units display, use the Volume buttons
to adjust the delay time. Adjusting the value to zero causes lip
sync delay to be turned off. See later section in this manual.
Bass/Treble
Press for bass/treble adjustment, using the Volume up/down
buttons.
Note: Bass/Treble is bypassed in analogue stereo direct
mode.
5

Azur 351RService Manual
7
CN10 3P 3.96
TRANSFORMER
AC IN
110V/220V
CN6
7P 3.96
CN7
CN2 2.5
SMPS PCB
CN12 3P 3.96 CN1 3P 2.5 CN9 2P 3.96
CN9 2P 3.96
AMP PCB
CN7 2P 2.0
CN29 4P 2.0 CN6 4P 2.0
TO HDMI GND
HDMI PCB
TO AMP GND TUNER
MCU PCB
CN3 13P 1.0
CN4 18P 1.0
PHONE PCB
CN4 2P 2.0
CN5 4P 2.0
CN1 2P 2.5
CN4 2P 2.0
DISPLAY PCB
CN2 18P 1.0
CN2 3P 1.0
MIC IN
CN15 4P 2.0
VOL
CN9 3P 2.0
WIRING DIAGRAM
FAN
JK1
POWER SWITCH
VOLTAGE
SELECTOR
SWITCH
CN1 3P 3.96
2P
2P
4P
4P
4P
6

8
Front Panel Assembly exploded diagram

Azur 351RService Manual
9
Front Panel Assembly exploded parts list
NO PART NO.PART NAMESERVICE PART NUMBER QTY.
16031-1200-0000AMP BOARD 1
27431-110C-0000DISPLAY LENS 1
S1 5011-3006-0010SCREW BTB 3.0×6.0 5
37531-110A-0000FRONT PANEL INSERT LEFT 1
45331-120A-0000SUB PANEL 1
57431-1030-0000AZUR LIGHTGUIDE FOR 1 LED 1
67631-1030-0000CAMBRIDGE AUDIO AZUR 4mm BUTTON CUSHION 8
77331-1030-0000CAMBRIDGE AUDIO AZUR 4mm TAC SWITCH BUTTON 8
87631-1010-0000CAMBRIDGE AUDIO AZUR 9mm BUTTON CUSHION 1
97331-1010-0000CAMBRIDGE AUDIO AZUR 9mm TACT SWITCH BUTTON 1
10 7641-1020-0000CAMBRIDGE AUDIO AZUR 7mm BUTTON CUSHION 6
11 7331-1020-0000CAMBRIDGE AUDIO AZUR 7mm TAC SWITCH BUTTON 6
12 7931-1022-0000PCB COLUMN L=10.7 12
13 0001-1010-1000 1
S2 5010-2616-1000SCREW PB 2.6×16.0 12
14 0001-1450 1000PHONES PCB ASSEMBLEPF562 1
S3 5012-3006-0010SCREW BM 3.0×6.0 8
15 0001-1190-1000VOL PCB ASSEMBLEPF562 1
16 8760-0803-0001SPACER SUPPORT HTP-308 4
S3 5011-3004-0010SCREW BTB 3.0×4.0 2
17 0001 1206 0000MIC PCB ASSEMBLE 1
18 7531-111A-0000FRONT PANEL INSERT RIGHT 1
19 7931-118C-0000CA0426 VOLUME POT SKIRT 1
20 7431-1020-0000AZUR 8MM IR LENS 1
21 7531-107A-0000VOLUME KNOB MOUNTING SHAFT EXTENSION 1
22 6541-1100-0000CA0426 VOLUME POT METAL SKIN 1
S5 5011-3006-0030SCREW BTF 3.0×6.0 8
PF560
23 REMOTE CONTROL PF583
PF564
DISPLAY BOARD

10
175
Amp PCB Assembly exploded diagram
Amp PCB Assembly parts list
NO PART NO.PART NAMEQTY.
10001-9291-0000AMP PCB ASSEMBLE 1
S1 5011-3006-0010SCREW BTB 3.0×6.0 7
25015-3024-0040BOLT M3.0×24.0×0.5 2
35015-3032-0040BOLT M3.0×32.0×0.5 2
49102-2511-2211FAN DC12V 0.18A 80*80*25 1
55333-103A-0000HEATSINK BRACKET 2
65300-8030-0000FAN BRACKET 2
75931-1020-0071HEATSINK COLUMN 2
81054-7294-1100TUBE 5
94840-2025-0000IC MICA 5
10 1609-0002-8225THERMISTOR 1
11 5147-1010-0071HEATSINK 1
SERVICE PART NUMBER
PF564

Azur 351RService Manual
11
178
Lid Assembly exploded diagram
Lid Assembly parts list
NO PART NO.PART NAMEQTY.
16131-111A-0011WRAPOVER LID 1
25011-3006-0010SCREW BTB 3.0×6.0 13
SERVICE PART NUMBER

12
Bottom Assembly exploded diagram
176

Azur 351RService Manual
13
Bottom Assembly parts list
NO PART NO.PART NAMEQTY.
S1 TRANSFORMER PARTSBOLT 1
15030-8030-0200TRANSFORMER BOLT METAL SUPPORT PLATE 1
S2 TRANSFORMER PARTSPLAIN WASHER M8 2
S3 TRANSFORMER PARTSLOCK SPRING WASHER M8 2
S4 TRANSFORMER PARTSNUT HEX M8.0 2
2TRANSFORMER PARTSTRANSFORMER TOP MOUNTING PLATE 1
3TRANSFORMER PARTSTRANSFORMER NEOPRENE WASHER
PF567 (UK/EU) PF568 (CU)
2
44047-1015-1001TRANSFORMER 1
58770-1200-0000PCB COLUMN H=12.0 2
60001-1565-1000SMP PCB ASSEMBLE 1
S5 5011-3022-0010SCREW BTB 3.0×22.0 2
75331-1200-0100TRANSFORMER METAL DISHED WASHER 1
5030-0800-3210PLAIN WASHER M3.0 2
5040-3000-0000LOCK SPRING WASHER M3.0 2
5020-3006-0260NUT HEX M3.0 2
84300-0308-0000HF-308（II6B230）1
96331-120D-0000REAR PANEL 1
S7 5012-3010-0010SCREW BM 3.0×10.0 4
10 7731-506A-0000VOLTAGE SELECT SWITCH COVER 1
S8 5011-3006-0010SCREW BTB 3.0×6.0 11
S9 5013-3010-0010SCREW PA 3.0×10.0 15
11 0001-1261-0000SHIELD PCB 1
12 0089-1446-2002HDMI BOARD PF566 1
13 9800-327 1-000 1 TUNER 1
14 0001-1281-0000MCU BOARD PF565 1
15 0001-9291-0000AMP PCB ASSEMBLEPF564 1
S105011-3014-0010SCREW BTB 3.0×14.0 4
16 8770-0800-0000PCB COLUMN H=8.0 4
17 6231-110F-0000BOTTOM COVER 1
18 7931-1050-0013FOOT 4
19 7931-1060-0001FOOT PAD 4
S6
SERVICE PART NUMBER
PF563
PF574

14
Amp PCB Schematic 1
1
2 3 4
6
7
8
9 10
13
14
15
MUTE
STBY
+PWVS+VS
IN-
IN+
IN+MUTE
MUTE
STBY
STBY-GND -VS -PWVS
BOOTSTRAP OUT
12 B/L
IC12
TDA7294V
C82
220UF/25V R66
680
R71 15K
R48 15K
C86
152J/63
MUTE
STBY
BUF_C
1
2 3 4
6
7
8
9 10
13
14
15
MUTE
STBY
+PWVS+VS
IN-
IN+
IN+MUTE
MUTE
STBY
STBY-GND -VS -PWVS
BOOTSTRAP OUT
12 B/L
IC9
TDA7294V
C83
220UF/25V R67
680
R72 15K
C91
22UF/50V
R49 15K
C87
152J/63
MUTE
STBY
BUF_RS
1
2 3 4
6
7
8
9 10
13
14
15
MUTE
STBY
+PWVS+VS
IN-
IN+
IN+MUTE
MUTE
STBY
STBY-GND -VS -PWVS
BOOTSTRAP OUT
12 B/L
IC8
TDA7294V
C79
220UF/25V R64
680
R69 15K
C89
22UF/50V
R44 15K
C84 152J/63
MUTE
STBY
BUF_LS
1
2 3 4
6
7
8
9 10
13
14
15
MUTE
STBY
+PWVS+VS
IN-
IN+
IN+MUTE
MUTE
STBY
STBY-GND -VS -PWVS
BOOTSTRAP OUT
12 B/L
IC11
TDA7294V
C80
220UF/25V R65
680
R70 15K
R46 15K
C85
152J/63
MUTE
STBY
R18 10K
R47 22K
R15 10K
R35 22K
R30 10K
R52 22K
R17 10K
R45 22K
Q16
A1015
R90 100K
KF-YL-03
C96 104J/100V(POLY) C99 104J/100V(POLY)
C102 104J/100V(POLY) C104 104J/100V(POLY)
R58 1K
R59 1K
R60 1K
R57 1K
C19
10U/50
C43
10U/50
C25
10U/50
C10
10U/50
R86 10R/1/4W
C100
104J/100V(POLY)
R85
10R/1/4W
C98
104J/100V(POLY)
R87
10R/1/4W
C101
104J/100V(POLY)
R83 10R/1/4W
C97
104J/100V(POLY)
R89
10R/1/4W
C103
104J/100V(POLY)
1 3 5
2 4 6
JK8
WP6-10A/E
FL FR
C
RS
LS
3 1 2
4
JK9
WP4-10A/E
C17
104-0805
C18 104 C20 104
E2E3E4
D2
1N4148
MCU+5V
D4
1N4148
C59
3300U/6.3
DGND R40
10K R122
270K
DGND
Q3
C1815
R120 27K R42
10K
Q52
A1015
D6
1N4148
D5
1N4148
R41
10K R123
270K
DGND
Q4
C1815
R121
27K R43
10K
Q53 A1015
D8
1N4148
D7
1N4148
R124 220K
R125
220K
SYS-M
SYS-MUTE
SUB_MUTE
-15V
SUB-M
R109 15K
R105 22K
Q51 A1015
DGND
DW2 ZPD3.6
VCC
POP-M
FAN+15V
TEMP SENSOR
RT1
02DSB282J
R6 43K
R14 1K
R7 39K
1 2
MFAN
1 2
CN7
2P(2.0)
DGND
2 3
1
4
IC1A LM393P
6 5
7
8
IC1B LM393P
Q1
C1815
R1 2K/1% R11 6.8K/1%
DGND
R2
18K/1%
R3
1.8K/1%
DGND
R4 220/1%
R12
12K/1%
R13 1.2K/1%
DGND
DGND
HEAT SINK SENSOR
C105 104
DGND
PROTECT
Q2
2SC1627A-Y
DGND
C112 104
RS_O LS_O C_O FR_O
FL_O
Q12
OPEN
R140 OPEN
AGND
R144 47K R150 470R
SYS-M
C1 1000U/50V
C11 1000U/50V
C21 1000U/50V
C147 1000U/50V
AMP-VSS
AMP+VCC
AMP-VSS
AMP+VCC
AMP-VSS
AMP+VCC
AMP-VSS
AMP+VCC
R9
RF/0.22/1W
DGND
+
AC2
-
AC1
BL1
RS806
C64
0.1U/100V
C65
0.1U/100V
1 2
1 2 3
AMP-VSS
AMP+VCC
3 2 1
~14V
~31V
~31V
FAN+15V
DGND
300mA
4A 4A
3
~17V ~17V
0.5A
0.5A
1 2
5P2.5
TO FUSE BRD (CN16)
R8
10R/1W
D1
1N4001
C60 1000U/25
C66
10000U/50V
C67
10000U/50V
FH2
T10AL 250V
FH1
T10AL 250V
1 2 3
CN12
3P3.96
R135
RF1R/1W
R134
RF1R/1W
C136 3300UF/25V C137 3300UF/25V
C133 104 C134 104
O
3
G1
I2
IC14
KA7915
C131
220U/25
C132
220U/25
C128
104
C130
104
AGND
+
AC2
-
AC1
BL3
DB107G
I1
G
2
O
3
IC15
KA7815
!
!
-15V
+15V
AGND
!
!
!
!
!
AMP+VCC
AMP-VSS
1 2
~10V
2A
R136
RF0.22R/1W
+
AC2
-
AC1
BL4
KBL005
C140
10000UF/16V
C135 104
DGND
VCC
VCC
!
!1
2
CN9
2P3.96
1 2 3 4 5
CN1 5P(2.5)
Q15
OPEN
R143 OPEN
AGND
R151 470R R148 47K
SYS-M
Q14
OPEN
R142 OPEN
AGND
R147 47K R152 470R
SYS-M
Q13
OPEN
R141 OPEN
AGND
R146 47K
R153 470R
SYS-M
AC17V
1 2
~4.2V
0.2A
TO VFD (F1,F2)
18*35mm
1
2 3 4
6
7
8
9 10
13
14
15
MUTE
STBY
+PWVS+VS
IN-
IN+
IN+MUTE
MUTE
STBY
STBY-GND -VS -PWVS
BOOTSTRAP OUT
12 B/L
IC10
TDA7294V
C81
220UF/25V R68
680
R73 15K
R51 15K
C88
152J/63
MUTE
STBY
R22 10K
R50 22K
R61 1K
C37
10U/50
Q11
OPEN
R39 OPEN
AGND
R145 47K
R149 470R
SYS-M
C22 1000U/50V
C36 1000U/50V
AMP-VSS
AMP+VCC
C26 104 C24 104
C29 4.7U/50V
R79 22K
C30 22U/16
+15V
AGND
R82 10K
R84 10K
Q8
C2120
R53
22K
D10
1N4148 R81
220K
MUTE
STBY
MCU+5V
D9 1N4148
AMP-STB
SYS-MUTE
POP-M
D12 1N4148
C92
22UF/50V
C90
22UF/50V
C93
22UF/50V
C48
104-0805
C47
104-0805
TERMINAL ERTH
E
C46 104
E5
DGND
BUF_FL
BUF_FR
VCC
C42
104
C41
104
D+5.6V
D3
1N4001
I
1
G
2
O3
IC5
KA7805
C44
100U/16
C73
100nJ/100V
R137
NC
R133
12K/2W
LR4 15R+1.6uH
LR5 15R+1.6uH
LR2 15R+1.6uH LR3 15R+1.6uH
LR1 15R+1.6uH
C95
104J/100V(POLY)
C106
104J/100V(POLY)
C78
104J/100V(POLY)
C77
104J/100V(POLY)
C94
104J/100V(POLY)
C107
104J/100V(POLY)
D13 1N4148
D+5.6V
5V
Amp-sch 1/2
164

Azur 351RService Manual
15
Amp PCB Schematic 2
KF-YL-03
R114 100
C57 330P
R33 47K
R116 100
C58 330P
R36 47K
AGND
R119
100
C54 330P
C38
10U/16
R27 47K
R118 100
C53
330P
C39 10U/16
R32 47K
AGND
Lin Rin
VIDEO1
Lout
Rout
REC-OUT
AGND
R37
47K
R113
100
C51 330P
R23 47K
R111 100
C52
330P
R24 47K AGND
Lin
Rin
AUX/REC
C74
102
SUB-OUT
REC-L-O
REC-R-O
V1-L V1-R
REC-L
REC-R
MIC_IN
AGND
+15V
-15V
MIC_IN
+15V -15V
AGND
SOURCE_L SOURCE_R
C75
47U/16 C76
47U/16
AGND AGND
R10 1K
DW19 BZX55C7V5
R5 1K
DW18 BZX55C7V5
+15V -15V
-7V
+7V
Q62 2SC2120
Q63 2SA950
MIC_IN
TUNER_R TUNER_L
+15V -15V
VOL_CLK
VOL_DA
TO DECODE PCB
MIC_IN
2 4 6 8 10 12
1 3 5 7 9
11
CN8
6P2.0*2 (180) Twin-Row Socket
TO DECODE PCB
AGND
R103
470R
Q5
2SC2878
R94 10K
SUB-M
SYS-MUTE
SUB_MUTE
P ON/OFF
MCU+5V
BUF_FLBUF_FR
BUF_LS
BUF_RS BUF_C
AGND
PROTECT AMP-STB
SYS-MUTE
SUB_MUTE
PROTECT AMP-STB P ON/OFF
BUF_SUB
MCU+5V
AGND AGND
DGND DGND VCC
sub
TO H/P PCB
INA2
2
INB1
3
INB2
4
INC1
5
INC2
6
IND1
7
IND2
8
INE1
9
INE2
10
INF1
11
INF2
12
INA1
1
ING1
13
ING2
14
INH1
15
INH2
16 INH2 17
INH1 18
OUT2 19 OUT1 20
RECC2 21 RECC1 22 RECB2 23 RECB1 24
RECA2 25 RECA1 26
VCC 27
GND 28
VEE 29
DA 30
CLK 31
DGND 32
CON
IC2
BD3841FS
C2 104
C4 47U/25
C3 104
C5
47U/25 AGND
AGND
R56 33R R62 33R
L-OUT
R-OUT
-7V +7V
VOL_CLK
VOL_DA
V2_L V2_R
REC_L REC_R
AGND
MIC_IN
TUNER_R TUNER_L
SOURCE_L SOURCE_R
VOL_DA
VOL_CLK
MIC_IN TUNER_R
TUNER_L
AGND
BD_R
BD_L
V1_R V1_L
BUF_SUB
-
2
+
3
1
V- 4
IC3A
NJM4580D
C23
100U/16
C14
104
R74 10R
-15V
AGND
R34 10K
R54 2.7K
AGND
C12 22P
C8
330P
R28 100K
C6 10U/16
AGND
R76 150R
Q6
2SC2878
R16 10K
-
6
+
5
7
V+ 8
IC3B
NJM4580D
C16 100U/16
C15
104
R75 10R
+15V
AGND
R38 10K
R55 2.7K
AGND
C13 22P
C9 330P
R29 100K
C7 10U/16
AGND
R77
150R
Q9
2SC1815
R19 10K
DGND
BUF_FL BUF_FR
1 2 3 4
CN29 4P(2.0)
AGND
L
R
PHONES
2 4 6 8 10 12 14 16 42 18 40 20 38 22 36 24 34 26 32 28 30
1 3 5 7 9
11 13 15 17 41 19 39 21 37 23 35 25 33 27 31 29
CN2
2*21P2.0 (180) Twin-Row Socket
AC17V
1 2
43
CN11
2*2P2.0 (180) Twin-Row Socket
TO DECODER PCB
R63
1R/1W
AGND
R78
1K
Lin Rin
VIDEO2
R112 100
C49 330P
R20 47K
R110 100
C50 330P
R21 47K AGND
V2-L V2-R
R117 100
C55 330P
R25 47K
R115 100
C56 330P
R26 47K
AGND
Lin
Rin
BD/DVD
BD-L
BD-R
-2
+3
1
V- 4
IC4A
NJM4558D
C27 104
-15V
-6
+5
7
V+ 8
IC4B
NJM4558D
C28 104
+15V
AGND
AGND
Q10
2SC2878
R88 10K AGND
Q17
2SD1047
R91
100R/1W
C31
1000U/16V
DGND
B1
2 G1 1
JK2A AV6-8.4-13/EC
B2
4 G2 3
JK2B AV6-8.4-13/EC
6 G3 5
JK2C AV6-8.4-13/EC
C32
104--0805
AGND
C33
104--0805
AGND
2 G1 1
G3
JK1A AV4-8.4-13/EC
4 G2 3
JK1B AV4-8.4-13/EC
C35
104--0805
AGND
1
G2G1
JK3
AV-8.4-8/ES
C34 104--0805
AGND
1 2 3 4
CN4
NC
1 2 3 4
CN10
1*4P2.0(90)
1 2 3 4
CN13
1*4P2.0(90)
1 2 3 4
CN5
NC
Connet PCB
L R GND
C40
1000U/16V
DGND
1 2 3 4
CN6 4P(2.0)
DGND
POWER_ON/OFF
MCU+5V
D+5.6V
1 2 3 4
CN14 4P(2.5)
P ON/OFF
D+5.6V
MCU+5V
DGND
TO SMPS PCB
MIC_MUTE
H/P_MUTE H/P_MUTE MIC_MUTE
AGND
MCU+5V
Q7 2SA950
R97 22K
R80
10K
R98
1M
-15V
MIC_MUTE
AB
5
61
2
43
RL1
JRC-27F/005-M
D11
1N4001
Q18
C2120
R96 10K
R31 47K
C108
100U/16
D+5.6V
R99
4.7R/0.5W
H/P_MUTE
DGND
+15V.
-15V.
TO AMP PCB
MIC-LIN
AGND +15V
-15V
6 57
8
IC6B
NJM2068M
2 31
4
IC6A
NJM2068M
+15V. -15V.
C70 10u16
C68 10u16
L
R92 220R
R93 100K
C63 331
E
MIC_input MIC_IN.
E
FB1
FB0805
FB2
FB0805
2 4 6 3 1
L
R7
5
CK1 CK3.5-07 1
2 3 4
CN15
4P2.0
R126 2.2K
R108 100K R131
10K
R128 1K
R127
18K
R130
10K
R132 10K
R129
1K R95
100K
C45 104
C71
150P
C61 104
C72
2200P
C62 104
C69
150P
SETUP Mic
R138
39K0805
+15V.
P/N:0001-1206-0000
Amp-sch 2/2
165

16
Amp PCB Gerber
Amp-pcb
153

Azur 351RService Manual
17
Amp PCB BOM 1
Qty Ref. Design Factory Part Number
2Cap. Ceramic22PF 50VC12 C132115-5220-0110
2Cap. Ceramic150PF 50VC69 C712115-5151-0110
13 Cap. Ceramic330PF 50VC8 C9 C49 C50 C51 C52 C53 C54 C55 C56 C57
C58 C632115-5331-1100
1Cap. Ceramic 0.001uF 50V C74 2115 6102 0123
1Cap. Ceramic 0.0022uF 50V C722115-6222-0123
23 Cap. Ceramic 0.1uF 50V
C2 C3 C14 C15 C18 C20 C24 C26 C27 C28 C41
C42 C45 C46 C61 C62 C105 C112 C128 C130
C133 C134 C135
2115 8104 0123
5Cap. - Metallized Polyester film ±10%0.0015uF/63V C84 C85 C86 C87 C88 2210 2152 0803
18 Cap. - Metallized Polyester film ±10%0.1uF/100V C77 C78 C94 C95 C96 C97 C98 C99 C100 C101
C102 C103 C104 C106 C107 C64 C65 C732207-2104-0201
7Cap. - Chip Film 0805 ±5% X7R0.1uF 50V C17 C47 C48 C32 C33 C34 C352115-6104-0140
1Cap. - Elect ±20% 4.7uF 50V C29 2349 0610 1015
6Cap. - Elect ±20%10uF 16VC6 C7 C38 C39 C68 C70 2310 0310 1015
5Cap. - Elect ±20%10uF 50VC10 C19 C25 C37 C43 2310 0610 1015
1Cap. - Elect ±20%22uF 16VC30 2320 0310 1015
5Cap. - Elect ±20%22uF 50VC89 C90 C91 C92 C93 2320 0610 1015
2Cap. - Elect ±20%47uF 16VC75 C76 2340 0310 1015
2Cap. - Elect ±20%47uF 25VC4 C5 2340 0410 1015
4Cap. - Elect ±20%100uF 16VC16 C23 C44 C108 2311 0310 1015
7Cap. - Elect ±20%220uF 25VC131 C132 C79 C80 C81 C82 C83 2321 4104 3000
2Cap. - Elect ±20%1000uF 16VC31 C402312-3104-4000
1Cap. - Elect ±20%1000uF 25VC60 2312 4105 4000
6Cap. - Elect ±20%1000uF 50VC1 C11 C21 C22 C36 C147 2312 0610 5000
1Cap. - Elect ±20% 3300uF 6.3V C592332-0120-5043
2Cap. - Elect ±20%3300uF 25VC136 C137 2332 4106 6000
2Cap. - Elect ±20%10000uF 50VC66 C672313-0610-5000
1Cap. - Elect ±20%10000uF 16VC140 2313 0310 7070
1 Resistor - Chip Film 0805 ±5% 39KR138 2401 8239 3400
2Resistor - Carbon Film 1/8W ±5% 10RR74 R75 2401 0221 0211
2Resistor - Carbon Film 1/8W ±5% 33RR56 R62 2401 0223 3211
10 Resistor - Carbon Film 1/8W ±5% 100 R110 R111 R112 R113 R114 R115 R116 R117
R118 R1192401 0221 0111
2Resistor - Carbon Film 1/8W ±5% 150RR76 R77 2401 0221 5111
1Resistor - Carbon Film 1/8W ±5% 220RR92 2401 0222 2111
6Resistor - Carbon Film 1/8W ±5% 470RR103 R149 R150 R151 R152 R153 2401 0224 7111
5Resistor - Carbon Film 1/8W ±5% 680 R64 R65 R66 R67 R68 2401 0226 8111
11 Resistor - Carbon Film 1/8W ±5% 1K R5 R10 R14 R57 R58 R59 R60 R61 R78 R128
R1292401 0221 0211
1Resistor - Carbon Film 1/8W ±5% 2.2K R1262401-0222-2211
2Resistor - Carbon Film 1/8W ±5% 2.7K R54 R552401-0222-7211
22 Resistor - Carbon Film 1/8W ±5% 10K
R15 R16 R17 R18 R19 R22 R30 R34 R38 R40
R41 R42 R43 R80 R82 R84 R88 R94 R96 R130
R131 R132
2401 0221 0311
11 Resistor - Carbon Film 1/8W ±5% 15KR44 R46 R48 R49 R51 R69 R70 R71 R72 R73
R1092401 0221 5311
1Resistor - Carbon Film 1/8W ±5% 18KR1272401-0221-8311
9Resistor - Carbon Film 1/8W ±5% 22KR35 R45 R47 R50 R52 R53 R79 R97 R105 2401 0222 2311
2Resistor - Carbon Film 1/8W ±5% 27KR120 R121 2401 0221 2311
1Resistor - Carbon Film 1/8W ±5% 39K R7 2401 0223 9311
1Resistor - Carbon Film 1/8W ±5% 43K R6 2401-0224-3311
17 Resistor - Carbon Film 1/8W ±5% 47KR20 R21 R23 R24 R25 R26 R27 R31 R32 R33
R36 R37 R144 R145 R146 R147 R1482401 0224 7311
6Resistor - Carbon Film 1/8W ±5% 100KR28 R29 R90 R93 R95 R108 2401 0221 0411
3Resistor - Carbon Film 1/8W ±5% 220KR81 R124 R125 2401 0222 2411
2Resistor - Carbon Film 1/8W ±5% 270KR122 R123 2401 0222 7411
1Resistor - Carbon Film 1/8W ±5% 1M R98 2401 0221 0511
1Resistor - Carbon Film 1/8W ±1% 220/1% R4 2401 0212 2111
1Resistor - Carbon Film 1/8W ±1% 1.2K/1%R13 2401 0211 2211
1Resistor - Carbon Film 1/8W ±1% 1.8K/1% R3 2401 0211 8211
1Resistor - Carbon Film 1/8W ±1% 2K/1% R1 2401 0212 0211
Description
Amp - bom
Service Part Number
Note: Resistors, capacitors and other generic components are not usually stocked by the manufacturer. Please obtain these locally.

18
Amp PCB BOM 1
1Resistor - Carbon Film 1/8W ±1% 6.8K/1%R11 2401 0216 8211
1Resistor - Carbon Film 1/8W ±1% 12K/1%R12 2401 0211 2311
1Resistor - Carbon Film 1/8W ±1% 18K/1% R2 2401 0211 8311
5Resistor - Carbon Film 1/4W ±5% 10RR83 R85 R86 R87 R89 2401 0321 0011
1Resistor - Carbon Film 1/2W ±5% 4.7RR99 2401 0424 7911
1Resistor - Carbon Film 1W ±5% 1R R63 2406 5210 9000
1Resistor - Carbon Film 1W ±5% 10R R8 2401 0521 0012
1Resistor - Carbon Film 1W ±5% 100RR912401-0521-0111
1Resistor - Carbon Film 2W ±5% 12KR1332401-0752-2313
2Resistor - Fusible Metal Film 1W ±5% RF0.22R/1W R136 R9 2410 0522 2812
2Resistor - Fusible Metal Film 1W ±5% RF1R/1W R134 R135 2410 0421 0915
1Connector - Straight Header2P(2.0) CN7 3100 4020 0200
3Connector - Straight Header4P(2.0)CN6 CN29 CN15 3100 4040 0200
1Connector - Straight Header4P(2.5)CN143100-5040-0200
1Connector - Straight Header5P(2.5) CN1 3100 5050 0250
1Connector - Straight Header2P3.96 CN9 3100-0602-0001
1Connector - Straight Header3P3.96CN12 3100 0702 0050
2Connector - Twin-Row Socket1*4P2.0(90)CN10 CN13 3107 0404 4672
1Connector - Twin-Row Socket2*6P 2.0 CN8 3100 0906 6062
1Connector - Twin-Row Socket
2*2P2.0 (180) Twin-Row Socket
CN11 3107 0402 6002
1Connector - Twin-Row Socket
2*21P2.0 (180) Twin-Row Socket
CN2 3107 0421 6602
5IC - Power Amp TDA7294VIC8 IC9 IC10 IC11 IC12 1054 7294 1100
1IC - 9ch Function SwitchBD3841FSIC2 1003 8410 5122
1IC - Positive Voltage Regulator KA7805IC5 1019 7805 0800
1IC - Positive Voltage Regulator KA7815IC15 1019 7815 0800
1IC - Negative Voltage RegulatorKA7915IC14 1019 7915 0800
1IC - Low Offset Voltage Dual
CompartatorsLM393PIC1 1000 3930 4301
1IC - OP Amp NJM2068M IC6 1031 2068 1300
1IC - OP AmpNJM4558DIC41004-5580-3101
1IC - OP AmpNJM4580DIC3 1031 4580 0100
2 Transistor 2SA950Q7 Q631110-9500-0162
4 Transistor 2SA1015Q51 Q52 Q53 Q16 1111 0150 0172
1 Transistor 2SC1627A-Y Q2 1131 6271 0162
4 Transistor 2SC1815Q9 Q1 Q3 Q4 1131 8150 0172
3 Transistor 2SC2120Q62 Q8 Q18 1132 1200 0162
3 Transistor 2SC2878 Q5 Q6 Q10 1132 8780 0112
1 Transistor 2SD1047Q17 1141 0472 7000
1Connector - SpeakerWP4-10A/EJK9 2920 4210 0003
1Connector - SpeakerWP6-10A/EJK8 2920 6150 0003
1Connector - RCAAV4-8.4-13/ECJK1 2910 4011 0500
1Connector - RCAAV6-8.4-13/ECJK2 2910 6011 2020
1Connector - RCAAV-8.4-8/ESJK3 2910 1211 1010
1Diode - Rectifier1N4001 - F type D1 1360 1400 1005
2Diode - Rectifier 1N4001D3 D11 1360 1400 1000
10 Diode 1N4148 D2 D4 D5 D6 D7 D8
D9 D10 D12 D13
1310-1414-8000
1Diode - Zener ZPD3.6DW21300-3602-0200
2Diode - Zener 7.5V DW18 DW19 1300 7500 0200
1Diode - RectifierDB107GBL31361-3000-1070
1Diode - RectifierKBL005BL4 1361 3000 5000
1Diode - RectifierRS806BL1 1360 7080 6000
2InductorFB0805FB1 FB2 1852 0120 9100
2Fuse 5x20mmT10AL 250VFH1 FH2 1610 5010 0200
1Connector - 3.5mmCK3.5-07 CK1 2802 1335 0703
5Inductor15R+1.6uHLR1 LR2 LR3 LR4 LR5 1841 6052 0301
1RelayJRC-27F/005-MRL1 4712 0000 2700
1NTC Thermistor02DSB282JRT1 1609 0002 8225
Qty Ref. Design Factory Part Number
Description Service Part Number
Note: Resistors, capacitors and other generic components are not usually stocked by the manufacturer. Please obtain these locally.

Azur 351RService Manual
19
MCU Schematic 1
DSP_SPI_CS
ADC/DSD_SEL#
DSP_RESET
DSP_SCL
HDMI_RESET#
ADC_RESET
DSP_SPI_BSY
I2C_SDA
DSP_SPI_IRQ
DSP_SPI_SDA
EP_CS
EP_SCK
EP_MOSI
VOL_CLK
VOL_DA
PROTECT
RN12 10K*4
RN19 10K*4
DGND
RN3 33R*4
RN17 10K*4
RN6 10K*4
RN4 33R*4
MCU+3.3V
MCU+3.3V
RN22 33R*4
RN16 10K*4
RN8 10K*4
RN7 10K*4
RN9 10K*4
RN1 33R*4
RN10 33R*4 RN11 33R*4
MCU+3.3V
RN15 10K*4
RN14 10K*4
RN24 33R*4
C149 104
DGND
MCU+3.3V
C153 16PF
C152 16PF
Z2
8MHz
DGND
RN25 33R*4
RN5 33R*4
RN21 33R*4
MCU+3.3V
RN18 10K*4
RN30 10K*4
FB15
FB0805
C150 22PF(NC)
DGND
C151 22PF(NC)
C36 104
C223 104
C224 104
C225 104
C226 104
C227 104
C34
104
R151 OPEN
A0
1
A1
2
A2
3
GND
4SDA 5
SCL 6
WP 7
VCC 8
IC21
AT24C04N-10SC
DGND
FB14
FB0603
DGND
MCU+3.3V
C184
100U/10
MCU+3.3V
1 2 3 4 5 6 7 8 9
10 11 12 13
CN3
D100-SSA-13
TUNER_R TUNER_L
TU_GND
TU-L
TU-R
12V
NC NC
NC
SCLK
SENB
SDIO
RSTB
TO Tuner BOX
C39
104
Q4
C3361
R137
10K
Q5
S8050LT1
TU-GND
R157
2.2K
R156
15K
C38
104
+15V
C37
104
TU-GND
C154 47U/25
ＶＯＬ Ｂ
ＧＮＤ
ＭＣＵ＋５Ｖ
ＶＦＤ＿ＤＡＴＡ
ＶＯＬ Ａ
DGND
ＭＣＵ＋５Ｖ
ＲＥＭＯＴＥ
ＶＦＤ＿ＳＴＢ
ＶＦＤ＿ＣＬＫ
MCU+5V MCU+5V
TO display board
U0_RX U0_TX
DGND
UPDATE SW
KF-YL-03
I2C_SDA
I2C_SCL
DSP_SPI_CS
DSP_SPI_BSY
DSP_SPI_IRQ DSP_SPI_SDA
EP_CS EP_SCK EP_MOSI
HDMI_RESET#
DSP_SCL
ADC/DSD_SEL#
DSP_RESET
H/P_DET
REMOTE
VFD_DATA VFD_CLK
VFD_STB
TUNER_R
TUNER_L
U0_TX U0_RX
OSC_OUT
VOL_B
VOL_A
TU-GND
Ｈ／Ｐ＿ＤＥＴ
VOL_MUTE
DMX_SET
O2
G
1
I
3
IC19
AMS1117-3.3
MCU+3.3V
MCU+3.3V
C237
100U/10
C235
104
C238
100U/10
C236
104
DSP_SDA
ＡＣ＋１５Ｖ
ST_BYPASS
NC NC
MCU+5V
TU-GND AGND
DGND
R123
NC
SW1
ＳＷ１
C164
104
C163 104
C162 104
C161 104
BT_RX BT_TX BT_RST
TO BLUEtooth
1 2 3 4 5 6
CN5
6P(2.0)(NC)
FB2 FB0603(NC)
FB3 FB0603(NC) FB4 FB0603(NC)
BT_RX BT_TX
BT_RST
BT+5V
BT_RX
BT_TX
BT_RST
SIGNAL_DET
C142
104(NC)
Q7
C3361(NC)
R134
10K(NC)
R136
4.7K(NC)
R135
100R(NC)
D+5V
C1
104(NC)
C144
47U/25(NC)
BT_ON/OFF
TU_SCLK
TU_SENB
TU_SDIO
TU_RSTB
TCK/SWCLK TDO TDI TMS/SWDIO TRST
JTAG
2 4 6 8 10 12 14 16 18 20
1 3 5 7 9
11 13 15 17 19
JK2
2*10P2.0(180)
3.3_JTAG
FB7
FB0603
MCU+3.3V
Ｐ ＯＮ／ＯＦＦ
U0TX U0RX
GND
MCU+3.3V
2 4 6 8
1 3 5 7
CN2
2*4P2.0(180)
MCU+3.3V
Q8
S8550LT1(NC)
AC15V
P _ON/OFF P_ON/OFF
VFD_DATA
SW1
REMOTE
VFD_CLK
H/P_DET
VFD_STB
VOL_B VOL_A
TU_SENB TU_SCLK
TU_SDIO
TU_RSTB
TU+12V
TU_ON/OFF
TU_ON/OFF
TU+12V
TU_ON/OFF
TU_SENB
TU_SCLK
TU_SDIO
TU_RSTB
SYS_MUTE
SUB_MUTE
VFD_DATA
SW1
VFD_CLK
H/P_DET
VFD_STB
AMP_STB
VOL_B VOL_A
RN2 33R*4
DMX5.1_SET
C32 104
DGND
DGND
C5
2200U/10
D+5V
D+5V
VCC
DGND
C100
22uF/25V(X7)
DGND
C99
22uF/25V(X7)
DGND
R109 10K
R110
10K
DGND
C106
103
DGND
C108
4700PF(NPO)
C101 103
R112
7.5K 1%
C107
120PF(NPO)
L1
CDRH104RNP-220NC(sumida)
DGND
DGND
D1
B340A
DGND
R111
10K 1%
R108
30.9K 1%
D+5V
R192
1M
BT_RX
BT_TX
BT_ON/OFF
BT_SPDIF BT_SPDIF
ＧＮＤ
P_ON/OFF
SYS_MUTE
MIC_MUTE
PE2
1
PE3
2
PE4
3
PE5
4
PE6
5
VBAT
6
PC13-TAMPER-RTC
7
PC14-OSC32_IN
8
PC15-OSC32_OUT
9
VSS_5
10
VDD_5
11
OSC_IN
12
OSC_OUT
13
NRST
14
PC0
15
PC1
16
PC2
17
PC3
18
VSSA
19
VREF-
20
VREF+
21
VDDA
22
PA0-WKUP/USART2_CTS/ADC_IN0/TIM2_CH1_ETR
23
PA1/USART2_RTS/ADC_IN1/TIM2_CH2
24
PA2/USART2_TX/ADC_IN2/TIM2_CH3
25
PA3/USART2_RX/ADC_IN3/TIM2_CH4
26
VSS_4
27
VDD_4
28
PA4
29
PA5
30
PA6
31
PA7
32
PC4
33
PC5
34
PB0
35
PB1
36
PB2/BOOT1
37
PE7
38
PE8
39
PE9
40
PE10
41
PE11
42
PE12
43
PE13
44
PE14
45
PE15
46
PB10/I2C2_SCL
47
PB11/I2C2_SDA
48
VSS_1
49
VDD_1
50
PB12 51 PB13 52 PB14 53 PB15 54
PD8 55 PD9 56
PD10 57 PD11 58 PD12 59 PD13 60 PD14 61 PD15 62
PC6 63 PC7 64 PC8 65 PC9 66
PA8/USART1_CK/TIM1_CH1/MCO 67
PA9/USART_TX/TIMI_CH2 68 PA10/USART_RX/TIMICH3 69
PA11 70 PA12 71 PA13 72
NC 73
VSS_2 74
VDD_2 75
PA14 76
PA15 77
PC10 78
PC11 79
PC12 80
PD0 81
PD1 82
PD2 83
PD3 84
PD4 85
PD5 86
PD6 87
PD7 88
PB3 89
PB4 90
PB5 91
PB6/I2C1_SCL/TIM4_CH1 92
PB7/I2C1_SDA/TIM4_CH2 93
BOOT0 94
PB8 95
PB9 96
PE0 97
PE1 98
VSS_3 99
VDD_3 100
IC17
STM32F103VET6
BOOT1
R202 33
RESET#
R199 10K R200 10K R201 10K
DBGRQ
DBGACK
RTCK
OSC_IN
+3.3VDD
C35 1U/10
+3.3VDD
Z1
32.768KHz(NC)
R122
10M(NC)
DGND
R204 33
R203 33
DSP_SDA
R193 10K R148 10K
RN29 10K*4 RN28 10K*4
BOOT0
R104 10K
RN23 33R*4
RN20 10K*4
U0_RX U0_TX
BT_RST
I2C_SCL
BT_ON/OFF
BT_ON/OFF
REMOTE
REMOTE
ADC_RESET
RN26 10K*4
RN27 10K*4
MCU+3.3V
R197 10K
R198 10K
R194 10K
R195 10K
RN13
10K*4
R206 33 R205 33
R207 33
R208 33
MIC_MUTE
VOL_A VOL_B
U0_TX U0_RX
H/P_DET
SW1
DMX_SEL
DMX5.1_SET
ST_BYPASS
VOL_CLK
VOL_DA
VOL_MUTE
VFD_STB
P_ON/OFF
SIGNAL_DET
PROTECT
SUB_MUTE
AMP_STB
VFD_DATA VFD_CLK
TU_ON/OFF
TU_RSTB
TU_SDIO
TU_SENB
TU_SCLK
R211
33
R212 33
R213 33
DGND
BS
1
IN
2
SW
3
GND
4FB 5
COM 6
EN 7
SS 8
PAD
9
IC16
MP1423
HP_MUTE
HP_MUTE
1 2 3
SW1
MSV-1260
DGND
BOOT0
ＧＮＤ
ＧＮＤ
1 2 3 4 5 6 7 8 9
10 11 12 13 14 15 16 17 18
CN4
18P1.0
ＧＮＤ ＧＮＤ
MCU-sch 1/3
166

20
MCU Schematic 2
R79 OPEN
C147
102 C148
563
C124
104
C126 104
C75
104
C76 104
C74 104
C70 104
C71 104
FB6
FB0603
R77
10K
R78 10K
FB12
FB0603 C122
102
D+5V
C72 102
R80 6.8K
R74
10K
DGND
DGND
AGND
DGND
DGND
DGND
DGND
DGNDDGND
AGND
AGND AGND
R146 10K
DGND
C121
104
I2C_SCL
A+5V
AOUTA1+ 36 AOUTA1- 37
AOUTB1+ 35 AOUTB1- 34
AOUTA2+ 32 AOUTA2- 33
AOUTB2+ 31 AOUTB2- 30
AOUTA3+ 28 AOUTA3- 29
AOUTB3+ 27 AOUTB3- 26
AOUTA4- 23
AOUTA4+ 22
AOUTB4- 20
AOUTB4+ 21
MUTEC
38
AINL+ 15 AINL- 16 AINR+ 14 AINR- 13
VQ 17
FILT+ 18
REF GND 19
LPFLT 39 AGND 40 AGND 25
DGND
52
DGND
5
VLC
6
VD 4
VD 51
VARX 41
VA 24
RMCK
55
SAI_SCLK
61
SAI_LRCK
60
SAI_SDOUT
54
CX_SCLK
2
CX_LRCK
3
CX_SDOUT
56
CX_SDIN1
1
CX_SDIN2
64
CX_SDIN3
63
RESET
12
SCL/CCLK
7
SDA/CDOUT
8
INT
11
AD1/CDIN
9
AD0/CS
10
RXP7_GPO7
42 RXP6_GPO6 43
RXP5_GPO5
44
RXP4_GPO4
45
RXP3_GPO3
46
RXP2_GPO2
47
RXP1_GPO1
48
RXP0
49
TXP
50
VLS 53
OMCK
59
ADCIN2
57
ADCIN1
58
CX_SDIN4
62
IC11
CS42518-CQZ
DA/AD
2 3
1
4
IC3A
NJM2068M
R19 2.94K
C42 182
R24 6.19K
C49 330P
AGND
R16 5.49K R40 2K
R48 887
R44 1.87K
C78
562
AGND
AGND
C86 122
AGND
6 5
7
8
IC3B
NJM2068M
R49 2.94K
C81 182
R52 6.19K
C89 330P
AGND
R41 5.49K R42 2K
R50 887
R45 1.87K
C79 562
AGND
AGND
C88
122
AGND
2 3
1
4
IC4A
NJM2068M
R23
2.94K
C43
182
R25 6.19K
C51 390P
AGND
R15
5.49K
R13
1.65K
R20
887
R17 1.87K
C40
562
AGND
AGND
C47
122
AGND
R29 1.2K
AGND
2 3
1
4
IC9A
NJM2068M
R46 2.94K
C80 182
R51 6.19K
C87 330P
AGND
R38
5.49K
R39 2K
R47 887
R43 1.87K
C77
562
AGND
AGND
6 5
7
8
IC9B
NJM2068M
R94 2.94K
C130 103
R96 6.19K
C137 473
AGND
R81 6.19K R82 1.65K
R95 887
R87 1.87K
C129 104
AGND
AGND
C57 104
AGND
C85 122
AGND
C136
104
AGND
R56 47K
AGND
R138 47K
AGND
6 5
7
8
IC4B
NJM2068M
R22
2.94K
C44
182 R26 6.19K
C50 390P
AGND
R12 5.49K
R14
1.65K R21
887
R18 1.87K
C41
562
AGND
AGND
C48
122
AGND
R30 1.2K
AGND
R37 33R
R76 220
R75 220
V IN
3
GND
1
V OUT 2
IC2
AMS1117-3.3
DGND
I2C_SDA
DA3.3V
DA3.3V
HDMI_SPDIF
COAX1_IN
OPT_IN
C120 103
C69 104
DGND
FL-OUT
FR-OUT
LS-OUT RS-OUT
C-OUT
LEF-OUT
+15V
C54 104
AGND
-15V
C56 104
AGND
+15V
C55 104
AGND
-15V
C53 104
AGND
+15V
C52 104
AGND
-15V
AGND
AGND AGND
AGND
C28
104
C27
104
R145
10R/1W
A+5V +15V
DGND
TO HDMI PCB
VCCHDMI_SPDIF
COAX2_IN
C45 22U/16
C60 33U/16
C46 22U/16
C61 33U/16
C83 22U/16
C84 22U/16
C82 22U/16
C94 10U/16
C131 22U/16
C145 10U/16
C73
100U/10
C125
2.2U/50
C123 100U/10
C146
220U/10
ADC_RESET I1
G
2
O
3
IC14 KA7805
LPF_C
LPF_FL LPF_FR
DSP_RESET
DSP_SPI_CS
DSP_SPI_BSY
DSP_SDA
DSP_SCL
HDMI_RESET#
EP_MOSI
EP_SCK
EP_CS
I2C_SCL
I2C_SDA
ADC/DSD_SEL#
DSP_SPI_SDA
DSP_SPI_IRQ
2 4 6 8 10 12 14 16 18 20 22 24 26 32 28 30
1 3 5 7 9
11 13 15 17 19 21 23 25 27 31 29
34 33
CN1
2*17P2.0 (180) Twin-Row Socket
DA_OMCK DA_SPI_LRCK DA_SPI_SCLK DA_SPI_SDOUT DA_CX_SD4 DA_CX_SD3 DA_CX_SD2 DA_CX_SD1 DA_CX_LRCK DA_CX_SCLK DA_CX_SDOUT DA_RMCK
HDMI_SPDIF
2 3
1
4
IC12A
NJM2068M
2 3
1
4
IC13A
NJM2068M
C133 471
R141 2.8K
R90 634
R84 90.9 R89 634
R88 634
R83 90.9
R102 10K
R97 332
R100 3.32K
R139
1K
C132 471
C26 104
C25 104
C24 104
C127
272
AGND
AGND
AGND
AGND
6 5
7
8
IC12B
NJM2068M
6 5
7
8
IC13B
NJM2068M
C135 471
R142 2.8K
R93 634
R86 90.9 R92 634
R91634
R85 90.9
R103 10K
R98 332
R101 3.32K
R140 1K
C134
471
C31
104
C30 104
C29 104
C128
272
AGND
AGND
AGND
AGND
R143 1.5k
R144 1.5K
C138
100U/10
C139 100U/10 C141 100U/10
C140 100U/10
+15V
-15V
-15V
+15V
A+5V
TUNER_R TUNER_L
+15V -15V
VOL_CLK
VOL_DA
2 4 6 8
10 12
1 3 5 7 9 11
CN8
6P2.0*2 (90) Twin-Row Pin
AGND
TO AMP PCB
SOURCE_L
SOURCE_R
TUNER_R
TUNER_L VOL_CLK VOL_DA
C183 104 C186 104 C190 104 C219 104 C217 104 C218 104
AGND DGND
C216 104
DGND
C239 104
1 2
14
IC24A
74HCU04D
FB5
FB0603 D+5V
C103
104
DGND
R167 10R
OPT2_IN
DGND
C105
104
G
I/O
+V
U2 JSR1162-002
3 4
IC24B
74HCU04D
R177 10R
C180
104 R178 1M
R180
75
DGND
C181 105
DGND
COAX1_IN
OPT_IN
COAX1_IN
FB13
FB0603
D+5V
13 12
7
IC24F 74HCU04D
DGND
C189 100P
5 6
IC24C
74HCU04D
9 8
IC24D
74HCU04D
R185 10R
C185
104 R164 1M
R187 75
DGND
C187 105
COAX2_IN
COAX2_IN
C188
100P
C191
100U/10
DGND
2 G1 1 G2
JK1
AV2-8.4-14/PB
LPF_SUB
VCC
Y0
1
Y2
2COM-Y 3
Y3
4
Y1
5
INH
6VEE 7
VSS 8
B
9
A
10
X3
11
X0
12
COM-X 13
X1
14 X2 15 VDD 16
IC18
HEF4052BT
VOL+7V VOL-7V
C109
104
C110 104
AGND
R113
0R
AGND
ST_BYPASS ST_BYPASS
SOURCE_R SOURCE_L
SOURCE_R
SOURCE_L
C112 10U/16
C111 10U/16
FB17 FB0603
FB19 FB0603
FB18 FB0603
2 3
1
4
IC10A
NJM2068M
R158 2.94K
C175 182
R160 6.19K
C177 390P
AGND
R57 5.49K R58 2K
R159 887
R155 1.87K
C174
562
AGND
AGND
6 5
7
8
IC10B
NJM2068M
R169 2.94K
C182 182
R171 6.19K
C192 390
AGND
R163 5.49K
R165
2K
R170 887
R168 1.87K
C178 562
AGND
AGND
C166 104
AGND
C176 122
AGND
C193
122
AGND
LB-OUT
RB-OUT
+15V
C165 104
AGND
-15V
C104 22U/16 C160 22U/16
C95 103
C102 103
C93 103
ADC_RESET
I2C_SCL I2C_SDA
6 5
7
8
IC20B
NJM2068M
R182 1K R174 1K
R179 1K
R188 1K
AGND
C19610PF
AGND
R162 47K
AGND
LPF_LS/
C169
104
AGND
-15V
C171 10U/16
R190 100
2 3
1
4
IC20A
NJM2068M
R181 1K
R173 1K
R175 1K
R186
1K
AGND
C19710PF
AGND
R161 47K
AGND
LPF_RS/
C167
104
AGND
+15V
C170 10U/16
R189 100
R184 1K
R183 1K
IN1
1
D1
2
S1
3
V-
4
S4
6
D4
7
GND
5
IN4
8IN3 9
D3 10
S3 11
NC 12
V+ 13
S2 14
D2 15
IN2 16
IC23
NJU201AM
R172 10K
DMX5.1_SET
DMX5.1_SET
AGND
+15V
-15V
C195104
C194 104
AGND
LPF_LS/
LPF_RS/
DSP_SDA
DSP_SCL
HDMI_RESET#
EP_MOSI
EP_SCK
EP_CS
I2C_SCL
I2C_SDA
ADC/DSD_SEL#
DSP_SPI_SDA DSP_SPI_IRQ DSP_SPI_CS
DSP_SPI_BSY
C33 103
BT_SPDIF
FB1 0R
R176
75
R166
75
R209
10M
R196
10M
MCU-sch 2/3
167