Denon PMA-2000-4R Service Bulletin

INPUT

REC OUT

PRE OUT

MAIN IN

P. AMP DIRECT 0.9V(-1dB)

CD etc.135mV(-17.4dB)

PHONO MM 2.2mV(-53dB)

PHONO MC 0.18mV(-75dB)

PHONO

CD

TUNER

DVD
/AUX-1

AUX-2

TAPE-1
/CD-R

TAPE-1
/CD-R

TAPE-2
/MD

TAPE-2
/MD

RIAA

MC

MM

47k 100

+

-

BASS

BUFFER

BALANCE

TREBLE

SOURCE

OFF

ON

DIRECT

MAIN VOLUME

POWER AMP DIRECT

FLAT AMP

TONE

POWER AMP

PROTECTOR

SPEAKER A
(MAIN)

SPEAKER B
(BI WIRING)

HEAD PHONE

POWER AMP

POWER AMP

POWER GND

VOLTAGE

REGULATOR

REC OUT SELECTOR

OFF ON

EQUALIZER

TONE AMP

POWER AMP

FLAT AMP

PROTECTOR

&

RELAY

+16V

-16V

GND

+16V

-16V

GND

+16V

-16V

GND

GND

+30V

+12V

-30V

GND

+

+

+

AC PLUG

80W/8ohm 25.3V(28dB)

40dB

-40dB

-50dB

-60dB

-70dB

-80dB

20dB

-20dB

10dB

-10dB

0dB

30dB

-30dB

(dBV)

BLOCK/LEVEL DIAGRAM

PMA-2000IVR

1 5678

32

4

A

B

C

D

E

6

WIRING DIAGRAM

PMA-2000IVR

1

CY103

1 2 3 4 5 6 7 8 9 10

RELAY

1U-3432-10

PRE OUT UNIT

GND

DIRECT

10P-EH

NC

OUT-L

IN-L

GND

OUT-R

RELAY

H/P-MUTE

RELAY

AUX-2

COMMON

GND

GND

NC

2

IN-R

1
2
3
4

1
2
3

CONTROL UNIT

CX041
4P-KR

CY035

3P-KR

+15V

1 2 3 4 5 6 7 8 9 10

3

1U-3432-3

-15V

L-TAP

L-CH

L-TONE

GND

SP-MUTE

GND

R-TONE

H/P-L

GND

H/P-R

GND

R-CH

R-TAP

1
2
3
4
5

CX054
5P-EH

CX103

1
2
3
4
5
6
7
8
9

10

CW101

10P-EH

CX101

1 2 3 4 5 6 7 8 9 10

+15V

1

GND

2
3

-15V

4

L-CH

5

GND

6

R-CH

CY061

+15V

-15V
L-TAP

L-CH

GND

L-TONE

GND

R-CH

R-TONE

R-TAP

R-TAP

+15V

-15V

L-TAP

GND
GND

SOURCE DIRECT SW UNIT

1U-3432-5

CX081

1
2
3

L

4

8P-EH

5
6
7
8

R

CW081

EQUALIZER/

INPUT UNIT

1U-3130-1

RELAY

AUX-2

COMMON

+15V
GND

-15V
L-CH
GND

R-CH

GND

NC

DRIVE

T2

T1
AU2
AU1

TU
CD
PH

CX035

1
2
3

1
2
3
4
5
6

1

CX102

2
3
4
5
6
7
8
9

10

CX061

6P-EH

4

RELAY
GND
DIRECT
NC
OUT-L

FLAT AMP UNIT

GND
OUT-R
IN-L
GND
IN-R

CX057

1

+15V

2

-15V

3

L

4

L-TAP

5

GND

6

GND

7

R-TAP

8

R

CY031

1 2 3

-55V

GND

+55V

1U-3433

+15V

-15VLGND

1 2 3 4 5

R

5P-EH

1 2 3 4 5

CY057

MAIN VR UNIT

1U-3432-9

UP

DOWN

1 2 3

+15V

-15V

GND
GND

+15V

-15V

GND
GND

R

L

CW055

1
2
3
4
5

CW056

1
2
3
4
5

5

CX055

5P-EH

CX056
5P-EH

1
2
3
4
5

1
2
3
4
5

POWER AMP(L)UNIT

+15V

-15V
R
GND
GND

+15V

-15V
R
GND
GND

1U-3432-1

-55V

-55V

POWER AMP(R)UNIT

1U-3432-2

+55V

GND

3C(RED,BLK,BLU)x2

+55V

GND

SP-RELAY

ASO

POSISTOR

GND

L-OUT

SP-RELAY

ASO

POSISTOR

GND

R-OUT

GND

1
2
3
4
5

1
2
3
4
5
6

BLKx2

CX053

5P-KR

CX062

6P-KR

BLKx2

WHTx2

BLKx2

BLKx2

BLKx2

BLKx2

WHTx2

76

8

A

+

-

SPEAKER OUTPUT

-

L-ch

+

B

+

-

SPEAKER OUTPUT

-

R-ch

+

C

TAPE2
TAPE1

AUX2
AUX1

TUNER

PHONO

FUNCTIN

STOPACT.

FUNCTION SW UNIT

1U-3130-5

LED MUTE

LED UNIT

1U-3432-4

CX111 CY111

1
2
3
4
5

11P-KR

6

CD

7
8

5V

9
10
11

GND

1

2

+5V

3

DATA

4

LED

5

GND

CX052

5P-KR

CY052

TAPE2

1

TAPE1

2

AUX2

3
4

AUX1

5

TUNER

6

CD

7

PHONO

8

5V

9

FUNCTIN

10

STOPACT.

11

GND

1

1

LED MUTE

2

+5V

3

DATA

4

LED

5

GND

CZ102

CD

PH

CY041

RELAY

GND

H/P-MUTE

NC

CY033

1 2 3

UP

DOWN

1 2 3 41 2 3 4

H/P-L

GND

POSISTOR

10P-KR

1 2 3 4 5 6 7 8 9 10 5

T2

T1

GND

NC

DRIVE

AU2

AU1

TU

PROTECTOR UNIT

1U-3130-2

POSISTOR

CY054

GND

H/P-R

SP-MUTE

SP-RELAY

ASO

GND

L-OUT

SP-RELAY

ASO

GND

R-OUT

GND

AC-LOW

GND

AC-LOW

12V

P ON/OFF

1
2
3
4
5

1
2
3
4
5
6

5
4
3
2
1

CY053

5P-KR

CY062

6P-KR

CY051

5P-EH

CX051

5

AC-LOW

4

GND

3

AC-LOW

2

12V

1

P. ON/OFF

1
2
3

-55V
+55V

GND

-55V

CX031

3P-VH

BLK BLU BLK

AC OUTLET UNIT

1U-3432-8

3C(RED,BLK,BLU)x2

BLKx2

GND

GNDGND

+55V

POWER SUPPLY

UNIT

1U-3130-3

YELWHT

1 2

AC INLET

BLU

WHT

POWER SW UNIT
1U-3432-6

YEL

D

E

22