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

SCHEMATIC DIAGRAMS (1/3)

1 2 3 4 5 6 7 8 9 10 11

PMA-2000IVR

A

9.5V

9.4V

8.8V

B

11.5V

C

D

11.5V

12.7V

+ B LINE

- B LINE
SIGNAL LINE

12.7V

NOTICE

ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRENT ARE MEASUERD AT MO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.

WARNING:

Parts marked with this symbol have critical characteristics.
Use ONLY replacement parts recommended by the manufacture.

CAUTION:

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 card is less than 460kohms, the unit is defective.

WARNING:

DO NOT return the unit to the customer until the problem is located and
corrected.

SCHEMATIC DIAGRAMS (1/3)

1U-3130 INPUT UNIT

E

F

G

H

23

SCHEMATIC DIAGRAMS (2/3)

1 2 3 4 5 6 7 8 9 10 11

PMA-2000IVR

A

B

11V

C

D

E

11V

+ B LINE

- B LINE
SIGNAL LINE

NOTICE

ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRENT ARE MEASUERD AT MO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.

WARNING:

Parts marked with this symbol have critical characteristics.
Use ONLY replacement parts recommended by the manufacture.

CAUTION:

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 card is less than 460kohms, the unit is defective.

WARNING:

DO NOT return the unit to the customer until the problem is located and
corrected.

SCHEMATIC DIAGRAMS (2/3)

1U-3432 POWER AMP UNIT

F

G

H

24

SCHEMATIC DIAGRAMS (3/3)

1

PMA-2000IVR

2

3

4

5

76

8

A

B

NOTICE

ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRENT ARE MEASUERD AT MO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.

WARNING:

Parts marked with this symbol have critical characteristics.
Use ONLY replacement parts recommended by the manufacture.

CAUTION:

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 card is less than 460kohms, the unit is defective.

WARNING:

DO NOT return the unit to the customer until the problem is located and
corrected.

+ B LINE

-

B LINE
Lch SIGNAL LINE
Rch SIGNAL LINE

SCHEMATIC DIAGRAMS (3/3)

1U-3433 FLAT AMP UNIT

C

D

E

25