Denon DN-X400 Service Manual

For U.S.A., Canada, Europe,
Oceania & Asia model

SERVICE MANUAL

Hi-Fi Component

MODEL

DN-X400

DJ MIXER

— TABLE OF CONTENTS —

SAFETY PRECAUTIONS ........................................ 2

SPECIFICATIONS ................................................... 2

DISASSEMBLY .................................................... 3~5

SERVICE MODE SPECIFICATIONS .................. 6~8

SEMICONDUCTORS ........................................ 9~13

PRINTED WIRING BOARD PATTERNS ......... 14~17

NOTE FOR PARTS LIST ....................................... 18

PARTS LIST OF P.W.B. UNIT ......................... 19~28

EXPLODED VIEW ................................................. 29

PARTS LIST OF EXPLODED VIEW ...................... 30

PACKING VIEW ..................................................... 31

PARTS LIST OF PACKING & ACCESSORIES ..... 31

BLOCK DIAGRAM ................................................. 32

LEVEL DIAGRAM .................................................. 33

WIRING DIAGRAM ................................................ 34

SCHEMATIC DIAGRAMS ................................ 35~38

(1/4) GU-3402-1 MAIN UNIT (1/2) ............................ 35

(2/4) GU-3402-1 MAIN UNIT (2/2) ............................ 36

GU-3402-2 POWER UNIT ................................ 36

GU-3402-3 PANEL 2 UNIT ............................... 36

GU-3402-4 LINE SELECTOR UNIT ................. 36

GU-3402-5 CROSS FADOR UNIT ................... 36

GU-3402-6 ZONE/EFFECT UNIT ....................36

(3/4) GU-3403-1 PANEL 1 UNIT ............................... 37

GU-3403-3 DISPLAY UNIT .............................. 37

GU-3403-5 REGULATOR UNIT ....................... 37

(4/4) GU-3403-2 ANALOG I/O UNIT ......................... 38

GU-3403-4 H/P JACK UNIT ............................. 38



 Some illustrations using in this service manual are slightly different from the actual set.



14-14, AKASAKA 4-CHOME, MINATO-KU, TOKYO 107-8011 JAPAN

Telephone: [phone]

X0126 1134 NC 0109

SAFETY PRECAUTIONS

The following check should be performed for the continued protection of the customer and service technician.

LEAKAGE CURRENT CHECK

Before returning the unit to the customer, make sure you make either (1) a leakage current check or (2) a line to chassis
resistance check. If the leakage current exceeds 0.5 milliamps, or if the resistance from chassis to either side of the
power cord is less than 460 kohms, the unit is defective.

SPECIFICATIONS

GENERAL

Dimensions: 482 (W) × 105 (H) × 177 (D) mm (without feet)
Installation: 19-inch rack mountable 4U
Mass: 5.5 kg
Power Supply: 120 V AC ±10 %, 60 Hz (U.S.A. & Canada models)

230 V AC ±10 %, 50 Hz (European models)

Power Consumption: 26 W
Environmental Conditions: Operational temperature: 5 to 35 °C (41 to 95 °F)

Operational humidity: 25 to 85 % (no condensation)
Storage temperature: −20 to 60 °C (4 to 140 °F)

AUDIO SECTION

Input Sensitivity & Impedance:

Main Mic −54 dBV (2.0mV) 10 kΩ/kohms
Aux Mic −60 dBV (1.0mV) 10 kΩ/kohms
Effect (Return) −10 dBV (316mV) 50 kΩ/kohms
2-Phono −50 dBV (3.0mV) 50 kΩ/kohms
8-Line −14 dBV (200mV) 50 kΩ/kohms

Output level & Impedance:

Main (Balanced) 4 dBm (1.23V) 600 Ω/ohms load
Main (Unbalanced) 0 dBV (1.0V) 1 kΩ/kohms
Booth/Zone (Balanced) 4 dBm (1.23V) 600 Ω/ohms load
Rec (RCA) −10 dBV (316mV) 1 kΩ/kohms
Effect (Send) −10 dBV (316mV) 1 kΩ/kohms
Subwoofer −2 dBV (800mV) 1 kΩ/kohms
Headphone −4 dBV (631mV) 150 Ω/ohms (33 Ω/ohms load)

Frequency Response:

Line 20 to 20 kHz ±2 dB
Phono 20 to 20 kHz RIAA ±2 dB
Mic 20 to 20 kHz ±2 dB

Signal to Noise ratio:

Line 80 dB 0 dBm, 1 kHz, EQ flat
Phono 75 dB 0 dBm, 1 kHz, EQ flat
Main Mic 65 dB 0 dBm, 1 kHz, EQ flat

Total harmonic distortion rate:

Line Below 0.05 %
Phono Below 0.05 %
Cross talk: Over 70 dB

Channel equalizer:

Hi +10 dB, −26 dB (13 kHz)
Mid +10 dB, −26 dB (1 kHz)
Low +10 dB, −26 dB (70 Hz)

Microphone equalizer:

Hi +12 dB, −12 dB (10 kHz)
Mid +12 dB, −12 dB (1 kHz)
Low +12 dB, −12 dB (100 Hz)

Digital output (COAXIAL):

Signal format IEC958 Type II
Output level 0.5 Vp-p 75 Ω/ohms
Output signal level −6 dB

Digital output (OPTICAL):

Signal format IEC958 Type II

DN-X400

2

57

57

57

57

Front Panel Unit

FFC

FFC FFC

Connector

Connector Connector

57

57

DISASSEMBLY

(Follow the procedure below in reverse order when reassembling)

Front Panel Unit

1. Remove 6 screws and pull up Front Panel Unit.

2. Disconnect FFC cable and Connector.

3. Detach Front Panel Unit.

Note: Do not pull out aslant to prevent FFC cable damage.

Do not fail to pull AC cord from wall outlet before
disconnect the FFC cable.
If AC cord is remained plugged into wall outlet,
power is kept supplied in the unit, which may cause
danger.

57

DN-X400

Feder Unit

1. Remove 2 screws and pull up Feder Unit.

2. Disconnect Connector.

53

Fader Unit

Connector

Fader Unit

53

53

3

Front Panel

57

Front Cover

Connector

Connector Connector

Connector

57

57

57

57

1. Remove 8 screws .

2. Pull out the knobs and pull up Front Panel.

58

35 37

38

58

35

58

35

35

35

35

DN-X400

38

Front Cover Unit

1. Remove 5 screws and pull up Front Cover Unit.

2. Disconnect Connector.

3. Detach Front Cover Unit.

57

37

35

Front Panel

35

37

35

58

58

58

4

Rear Panel Unit

1. Remove 8 screws and pull up Rear Panel Unit.

52

54

DN-X400

52

54

Rear Panel Unit

52

54

54

54

54

54

5

DN-X400

SERVICE MODE SPECIFICATION

*How the product performs when the operation buttons for µcom control are pressed (including control input) is described in the
table below.

1-1 POWER ON / RESET

No Function Description Display Remarks

1 POWER (1) Turns power ON/OFF.

POWER ON
RESET

(2) Switches power ON when OFF.

1. Enters in the service mode when power
on while pressing MIC POST ON/OFF
button and EFECT LOOP MAIN button.

-20 8

Lch  

Ver No Line Select

Rch     

FADER ASSIGN A ASSIGN B

CH FADER START

2. For canceling the service mode, turn
power off/on.

1. Displays as defined after lighting
all LED for 1 sec.

2. Displays µcom version by 8-bit
on the level meter Lch LED-20~0
after 1.

3. Displays LINE select status on
the level meter Lch LED1~8 after

1.

4. Displays FADER VR data on the
level meter Rch LED-20-7 after

1.

5. Displays CH FADER START SW
status on the level meter Rch
LED-3 after 1.

6. Displays ASSIGN A status by 3­bit on the level meter Rch LED­1~1 after 1. Displays ASSIGN B
status by 3-bit on the level meter
Rch LED3~8 after 1.

7. Other than above, all LED goes
off.

1.  LED off,  LED on.

2. Refer to LINE SELECT

SW.

3. Refer to CROSS FADER

4. Refer to CH FADER.

5. Refer to ASSIGN A/B.

1-2 CH FADER START Switch

No Function Description Display Remarks

2 (1) Turns the level meter Rch LED-3 on/off

depending on the status of CH FADER
START SW.

1. Lights Rch level meter LED-3
when selected ON.

2. Extinguishes Rch level meter
LED-3 when selected OFF.

1-3 ASSIGN SELECT Switch

No Function Description Display Remarks

3 ASSIGN A (1) Selects the FADER for checking FADER

VR by examining ASSIGN A SW
operation.

CROSS (2-1) When selected OFF, it becomes the

mode of reading/displaying CROSS
FADER VR value.

1. Indicates OFF select display on the level
meter Rch.

CH1 (2-2) When selected CH1, it becomes the

mode of reading/displaying CH1 FADER
VR value.

1. Indicates CH1 select display on the level
meter Rch.

CH2 (2-3) When selected CH2, it becomes the

mode of reading/displaying CH2 FADER
VR value.

1. Indicates CH2 select display on the level
meter Rch.

ASSIGN B (3) Checks ASSIGN B SW operation.
CROSS (4-1) When selected OFF, it indicates OFF

select display on the level meter Rch.

CH1 (4-2) When selected CH1, it indicates CH1

select display on the level meter Rch.

CH2 (4-3) When selected CH2, it indicates CH2

select display on the level meter Rch.

1. Displays  on the level
meter Rch defined LED.

2. Displays CROSS FADER VR
data.

1. Displays  on the level
meter Rch defined LED.

2. Displays CH1 FADER VR data.

1. Displays  on the level

meter Rch defined LED.

2. Displays CH2 FADER VR data.

1. Displays  on the level

meter Rch defined LED.

1. Displays  on the level
meter Rch defined LED.

1. Displays  on the level
meter Rch defined LED.

1. For FADER data display,
refer to CH1 FADER.

1.  indicates level meter
Rch -1, 0, and -1 in
order.

1.  indicates level meter
Rch 3, 5, and 8 in order.

6

1-4 CROSS FADER

No Function Description Display Remarks

4CLOSS

FADER

(1) When OFF selected at ASSIGN A, it

reads the voltage divided by FADER VR
resister and displays the voltage data on
the level meter Rch defined LED.

1. 0 ⬉ FADER voltage ⬉ 0.5,
it displays .

2. 0.5 ⬍ FADER voltage ⬉ 1.0,
it displays .

3. 1.0 ⬍ FADER voltage ⬉ 1.5,
it displays .

4. 1.5 ⬍ FADER voltage ⬉ 2.0,
it displays .

5. 2.0 ⬍ FADER voltage ⬉ 2.5,
it displays .

6. 2.5 ⬍ FADER voltage ⬉ 3.0,
it displays .

7. 3.0 ⬍ FADER voltage ⬉ 3.5,
it displays .

8. 3.5 ⬍ FADER voltage ⬉ 4.0,
it displays .

9. 4.0 ⬍ FADER voltage ⬉ 4.5,
it displays .

10. 4.5 ⬍ FADER voltage ⬉ 5.0,
it displays .

11. Other than above, it displays
.

1.  indicates level meter
Rch -20, -15, -10, and -7
in order.

DN-X400

1-5 CH FADER (CH1/CH2)

No Function Description Display Remarks

5 CH1

FADER

CH2

FADER

(1) When 1 selected at ASSIGN A, it reads

the voltage divided by CH1 FADER VR
resister and displays the voltage data on
the level meter Rch defined LED.

(2) When 2 selected at ASSIGN A, it reads

the voltage divided by CH2 FADER VR
resister and displays the voltage data on
the level meter Rch defined LED.

pppp

Only CH1/CH2 checkable in this mode, CH3/CH4 uncheckable.

1. 0 ⬉ FADER voltage ⬉ 0.5,
it displays .

2. 0.5 ⬍ FADER voltage ⬉ 1.0,
it displays .

3. 1.0 ⬍ FADER voltage ⬉ 1.5,
it displays .

4. 1.5 ⬍ FADER voltage ⬉ 2.0,
it displays .

5. 2.0 ⬍ FADER voltage ⬉ 2.5,
it displays .

6. 2.5 ⬍ FADER voltage ⬉ 3.0,
it displays .

7. 3.0 ⬍ FADER voltage ⬉ 3.5,
it displays .

8. 3.5 ⬍ FADER voltage ⬉ 4.0,
it displays .

9. 4.0 ⬍ FADER voltage ⬉ 4.5, it
displays .

10. 4.5 ⬍ FADER voltage ⬉ 5.0, it
displays .

11. Other than above, it displays
.

1. Same as CH1.

1.  indicates level meter

Rch -20, -15, -10, and -7
in order.

7

1-6 LINE SELECT Switch (CH1/CH2/CH3/CH4)

No Function Description Display Remarks

6 LINE (1) Performs LINE SELECT SW operation

check.

CH1 (2) Turns the level meter Lch LED1 on/off

depending on the status of CH1 LINE
SELECT SW.

CH2 (3) Turns the level meter Lch LED3 on/off

depending on the status of CH2 LINE
SELECT SW.

CH3 (4) Turns the level meter Lch LED5 on/off

depending on the status of CH3 LINE
SELECT SW.

CH4 (5) Turns the level meter Lch LED8 on/off

depending on the status of CH4 LINE
SELECT SW.

1. Lights LED1 when LINE1
selected.

2. Extinguishes LED1 when LINE2
selected.

1. Lights LED3 when LINE3
selected.

2. Extinguishes LED3 when LINE4
selected.

1. Lights LED5 when PHONO1/
LINE5 selected.

2. Extinguishes LED5 when LINE6
selected.

1. Lights LED8 when PHONO2/
LINE7 selected.

2. Extinguishes LED8 when LINE8
selected.

DN-X400

8

SEMICONDUCTORS



 IC’s



TMP86CM41F-3GH8 (Main unit : IC314)

1

DN-X400

4964

48

16

17 32

33

TMP86CM41F-3GH8 Terminal Function

No.

Name

1VSS VSS —————GND
2XIN XIN — — — — — Osc. input pin, 16.00MHz
3XOUT XOUT — — — — — Osc. output pin
4 TEST(H:Vup) TEST — — — — — Fixed to GND
5VDD VDD — — — — — Power (+5.0V)
6 P21 STOP1 O — Pu H H Fader start CD1 back cue output
7 P22 PLAY1 O — Pu H H Fader start CD1 play start output
8 RESET_ RESET_ — — — — — Reset input

9 P20 ASWST0 O — Pu L H Analog SW data strobe signal 0
10 P30 YBLKCK O — — H — DIT sub code block clock
11 P31 ASWST2 O — Pd L L Analog SW data strobe signal 2
12 P32 ASWST3 O — Pd L L Analog SW data strobe signal 3
13 P33(SCK_) ASWCLK O — — L — Clock for analog SW data transfer
14 P34 LVM1 O — Pu H H Stereo level (ProgLch&Rch), L: Sel
15 P35(SO) ASWDAT O — — L — Analog SW data
16 P36 LVM2 O — Pu H H MONO LEVEL(CueAllMix&ProgAllMix), L: Sel
17 P37 ASWST1 O — Pd L L Analog SW data strobe signal 1
18 P40 — O — — L — Not used
19 (RxD1) — O — — L — Not used
20 (TxD1) — O — — L — Not used
21 P43 MUTE O — Pu H H Output mute, H: Mute
22 P44 PLAY2 O — Pu H H Fader start CD2 play start output
23 P45 STOP2 O — Pu H H Fader start CD2 back cue output
24 P46(INT3) TGSW3 I Ed Pu — — SW input interrupt signal for CH3 line select (PANEL1-B)
25 P47(INT4) TGSW4 I Ed Pu — — SW input interrupt signal for CH4 line select (PANEL1-B)
26 (AIN00) KEYIN10 I — Pu — H Key input 10 (PANEL1-B)
27 (AIN01) KEYIN12 I — Pu — H Key input 12 (PANEL1-B)
28 (AIN02) KEYIN13 I — Pu — H Key input 13 (ASSIGN-A) (PANEL1-B)
29 (AIN03) KEYIN11 I — Pu — H Key input 11 (PANEL1-F)
30 (AIN04) KEYIN14 I — Pu — H Key input 14 (ASSIGN-B) (PANEL1-F)
31 (AIN05) KEYIN20 I — Pu — H Key input 20 (PANEL2)
32 (AIN06) LVM-L I — — — — Signal input for level meter Lch
33 (AIN07) LVM-R I — — — — Signal input for level meter Rch
34 (AIN10) CRS-F I — — — — Cross fader voltage input signal
35 (AIN11) CH1-F I — — — — CH1 fader voltage input signal
36 (AIN12) CH2-F I — — — — CH2 fader voltage input signal
37 (AIN13) CONTOUR I — — — — Contour voltage input signal
38 (AIN14) — I — — — L Fixed to GND

Symbol

FunctionI/O DET Ext Ini Res

9

DN-X400

No.

Name Symbol

39 (AIN15) — I — — — L Fixed to GND
40 (AIN16) — I — — — L Fixed to GND
41 (AIN17) PLGIN I — Pu — — Plug connect signal +5V: IN
42 VAREF VAREF — — — — — Analog ref. V (+5V) for AD conversion
43 AVDD AVDD — — — — — Power (+5V)
44 AVSS AVSS — — — — — Analog ref. GND (GND) for AD conversion
45 P00 CHSELB1 O — Pu H H ASSIGN-B CH select signal 1
46 P01 CHSELB2 O — Pu H H ASSIGN-B CH select signal 2
47 P02 CHSELA1 O — Pu H H ASSIGN-A CH select signal 1
48 P03 CHSELA2 O — Pu H H ASSIGN-A CH select signal 2
49 P10 LDDAT1 O — Pd L L LED driver data 1 (PANEL1-F)
50 P11(INT1) TGSW1 I Ed Pu — — SW input interrupt signal for CH1 line select (PANEL1-B)
51 P12(INT2) TGSW2 I Ed Pu — — SW input interrupt signal for CH2 line select (PANEL1-B)
52 P13 LDDAT2 O — — L — LED driver data 2 (PANEL1-F)
53 P14 LDSEL1 O — Pu H H LED line control signal 1,L: On (PANEL1-F)
54 P15 LDSEL2 O — Pu H H LED line control signal 2,L: On (PANEL1-F)
55 P16 LDCLK1 O — — L — Clock for LED driver data transfer (PANEL1-F/2)
56 P17 LDDAT3 O — — L — LED driver data 3 (PANEL2)
57 P50 — O — — L — Not used
58 P51 NRESET O — Pd L L DIT reset signal, L: Reset
59 P52 ZSENCE I — — — — DIT ucon interface status
60 P53 YDMUTE O — Pu H H DIT mute signal, H: Mute
61 P54 YMLD O — Pu H H DIT chip enable signal
62 P55 YMDATA O — — L — DIT data send data
63 P56 YMCLK O — — H — Clock for DIT data send
64 P57 — O — — L — Not used

FunctionI/O DET Ext Ini Res

10

SM5902AF (Main unit: IC302)

SM5902AF Terminal Function

Setting

Pin No. Symbol I/O Function

HL

1VDD2



VDD power supply terminal.

2 UC1 IP/O Microcomputer interface extended I/O 1. Not Used (OPEN)

3 UC2 IP/O Microcomputer interface extended I/O 2. Not Used (OPEN)

4 UC3 IP/O Microcomputer interface extended I/O 3. Not Used (OPEN)

5 UC4 IP/O Microcomputer interface extended I/O 4. Not Used (OPEN)

6 UC5 IP/O Microcomputer interface extended I/O 5. Not Used (OPEN)

7 DIT O Digital audio interface terminal.

8 NTEST IP Test terminal. Test

9 CLK I 16.9344 MHz clock input.

10 Vss



Ground terminal.

11 YSRDATA I Audio serial input data.

12 YLRCK I Audio serial input LR clock. Lch Rch

13 YSCK I Audio serial input bit clock.

14 ZSCK O Audio serial output bit clock.

15 ZLRCK O Audio serial output LR clock. Lch Rch

16 ZSRDATA O Audio serial output data.

17 YFLAG I RAM overflow flag for signal processing IC. Over

18 YFCLK I X’tal system frame clock.

19 YBLKCK I Sub-code block clock signal.

20 NRESET I System reset terminal. Reset

21 ZSENSE O Microcomputer interface status output.

22 VDD1



VDD power supply terminal.

23 YDMUTE I Forcible mute terminal. Mute
24 YMLD I Microcomputer interface latch clock.

25 YMDATA I Microcomputer interface serial data.

26 YMCLK I Microcomputer interface shift clock.

27 A10 O DRAM address 10.

28 NCAS O DRAM CAS control.

29 D2 I/O DRAM data input/output 2.

30 D3 I/O DRAM data input/output 3.

31 D0 I/O DRAM data input/output 0.

32 D1 I/O DRAM data input/output 1.

33 NWE O DRAM WE control.

34 NRAS O DRAM RAS control.

35 A9 O DRAM address 9.

36 A8 O DRAM address 8.

37 A7 O DRAM address 7.

38 A6 O DRAM address 6.

39 A5 O DRAM address 5.

40 A4 O DRAM address 4.

41 A0 O DRAM address 0.

42 A1 O DRAM address 1.

43 A2 O DRAM address 2.

44 A3 O DRAM address 3.

44

34

33

23

12

22

1

11

SHOCK PROOF MEMORY CONTROLLER

DN-X400

11

DN-X400

8

7

6

5

1

2

3

4

5

7

8

6

Vcc

1Y

3A

2Y

1

2

3

4

1A

3Y

2A

GND

FRONT

VIEW

FRONT

VIEW

NJM7815FA(S)
(Panel I/O unit:IC801)
BA05T
(Panel I/O unit:IC803)

NJM7915FA
(Panel I/O unit:IC802)

TOP

VIEW

V

SS

OUT

V

DD

MN1382-S
(Main unit:IC315)

TC74HCU04AF
(Main unit:IC 328)

TC7WU04F
(Main unit:IC 325)

1

2

3

4

5

6

7

14

13

12

11

10

9

8

1A

1Y

2A

2Y

3A

3Y

GND

Vcc

6A

6Y

5A

5Y

4A

4Y

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

V

SS

L-S

1

L-COM

1

L-COM

2

L-COM

3

ST

GND

V

DD

R-COM1

R-COM2

R-COM3
DATA
CK

L-COM

1

L-COM

2

ST

V

DD

V

SS

R-S

1

R-S

2

R-S

3

R-S

4

R-S

5

R-S

6

R-COM

2

R-COM

3

DATA

CK

L-S

4

L-S

2

L-S

3

L-S

5

L-S

6

L-S

7

L-S

8

R-S

1

R-S

2

R-S

3

R-S

4

R-S

5

R-S

6

R-S

7

R-S

8

L-S

1

L-S

2

L-S

3

L-S

4

8

9

13

1

14

28

27

23

18

17

16

15

2

3

4

L-S

6

L-S

7

GND

19

20

21

22

25

26

5

24

11

12

6

L-S

5

7

10

L-S

8

L-COM

3

R-S

7

R-S

8

Shift Register

Level Shifter

Latch Circuit

Latch Circuit

Level Shifter

R-COM1

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

V

SS

L-S

1

L-COM1

L-COM2

L-COM3

ST

GND

V

DD

R-COM1

R-COM2

R-COM3

DATA
CK

V

DD

V

SS

L-S

4

L-S

2

L-S

3

L-S

5

L-S

6

L-S

7

R-S

1

R-S

2

R-S

3

R-S

4

R-S

5

R-S

6

R-S

7

8

13

1

14

28

27

23

18

17

16

15

2

3

4

GND

19

20

21

22

25

26

5

24

11

12

6

7

10

Shift Register

Level Shifter

Latch Circuit

Latch Circuit

Level Shifter

L-COM4

R-COM4

L-S

1

L-COM1

L-COM2

L-COM3

ST

L-S

4

L-S

2

L-S

3

L-S

5

L-S

6

L-S

7

L-COM4

R-COM1

R-COM2

R-COM3

DATA

CK

R-S

1

R-S

2

R-S

3

R-S

4

R-S

5

R-S

6

R-S

7

R-COM4

TC9163AN
(Main unit:IC309,326)
(Panel I/O unit:IC405,408)

TC9162AN
(Main unit:IC319)

BU2090F
(Main unit:IC603)
(Panel I/O unit:IC303,304)

16 V1Vss

15 Q112DATA

14 Q103CLOCK

13 Q94Q0

12 Q85Q1

11 Q76Q2

10 Q67Q3

9Q58Q4

Control Circuit

12-Bit Shift Register

Latch

Output Buffer

(Open Drain)

DD

TC74HC4052AF
(Main unit:IC301,303)

Y0

Y2

Y

Y3
Y1

INH

V

EE

Vss

1
2

3

4
5
6

7

8

16
15

14

13

12

11

10

9

Vcc

X2

X1
X

X0
X3

A
B

M51132FP
(Main unit:IC304

307)

Ref

Filter

NC

GND

Volume/Volume 1 control

Shock noise reduction
at Bus Through SW switching

Volume/Volume 2 control

Bus Through/VCA change SW

1

2

3

4

5

6

7

8

16
15

14

13

12

11

10

9

Output1

Input1

Power
NC

NC
Input2

Output2

Control modl switching

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

VINL

VREF1

VREF2

BYPAS

MODE0

RSTB

REFCOM

VINR

FMT0
FMT1

MODE1

FSYNC

PCM1800
(Main unit:IC324)

AGND
Vcc

CINNL

V

DD

DOUT

CINNR

CINPL

CINPR

DGND
SYSCK

BCK
LRCK

+

+

1

2

A Output

A- Input

A+ Input

V

-

B+ Input

B- Input

B Output

V+

BA15218F

(Main unit:IC119,308,
310

312,316 318,320 322,
329,401,402,601,604,605)
(Panel I/O unit:IC101

106,

151

156,201 206,251 256,
305,401,403,411

415,417)

UPC4570C

(Main unit:IC602)

NJM2068MD

(Main unit:IC101)
(Panel I/O unit:IC404)

BA4560F

(Panel I/O unit:IC301,302)

9

12