Denon PMA-2000 IV - Amplifier Support and Manuals
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Popular Denon PMA-2000 IV Manual Pages
Service Manual - Page 1
Hi-Fi Integrated Stereo Amplifier
SERVICE MANUAL
MODEL PMA-2000IVR
INTEGRATED STEREO AMPLIFIER
Some illustrations using in this service manual are slightly different from the actual set.
16-11, YUSHIMA 3-CHOME, BUNKYOU-KU, TOKYO 113-0034 JAPAN Telephone: 03 (3837) 5321
X0141 337 NC 0204
Service Manual - Page 2
SPECIFICATIONS
POWER AMPLIFIER SECTION
Rated Output Power:
Both channel driven
(8 Ω/ohms Load)
80 W + 80 W
20 Hz to change without advanced notice.
2 LEAKAGE CURRENT CHECK
Before returning the unit to the customer, make sure you make either side of the customer and service....
PMA-2000IVR
SAFETY PRECAUTIONS
The following check should be performed for China model
310...
Service Manual - Page 5
... adjust VR501 and VR502 so that the DC Voltmeter reads 12 ±0.5mV.
3. Set control as follows. Adjustment
1. Remove top cover. And then connect DC Voltmeter to AC...dummy load etc.
METHOD OF ADJUSTMENTS
PMA-2000IVR
VR501
1U-3432-1 Power Amp P.W.B. (L)
Power Trans
Power Trans
Main Volume
DC Voltmeter
VR502
1U-3432-2 Power Amp P.W.B. (R)
IDLING CURRENT
Setup
1. Lay the unit at a ...
Service Manual - Page 7
...XIN
X'tal
20 XOUT
X'tal
21 Vss
(VAss)
GND
22 VAREF
to be interface. PMA-2000IVR
7 Port Name : The name entered on the data sheet of output port. SEMICONDUCTORS
...number of port. "C" = CMOS output
Function : Function and logical level explanation of signals to VDD
23 P60
I
C MODEL SETTING INPUT
24 P61
I
C
25 P62
I
C
26 P63
I
C FUNCTION SELECTOR SW INPUT
27 P64
I
C
28 P65...
Service Manual - Page 14
...,558 R559,560 R565,566 R567,568 R571,572 R573,574 R575,576 R585,586
Part No. Part Name
Remarks
241 2446 001 Carbon film 8.2 kohm 1/2W RD05A2H822J(RMG)
241 2315 983... (SME) CK45F1H223ZT(DD-3)
14 G1C: China model
G1H: Hong Kong model
G2A: Singapore model
KEU: U.S.A.
No. Part No. PMA-2000IVR
PARTS LIST OF P.W.B.
model
Ref.
UNIT ASS'Y
1U-3432 POWER AMP UNIT ASS'Y
Ref.
Service Manual - Page 20
...(A)
1
93 443 9015 002 P.W. Part Name
Remarks Q'ty Ref. unit Ass'y G1C,G1H
1
34 414 0765 311 Shield plate
1
1U-3432A Power amp P.W.B. model
Ref. Part No. No. No.
unit Ass'y
...4113 112 Radiator bracket (A)
1
8 212 1176 002 Power switch
S101
1
55 412 4388 015 Support bracket (L)
1
9 212 1157 005 1P Push switch
S201
1
56 144 2510 296 Front ...washer (VR)
1
PMA-2000IVR
Ref.
Service Manual - Page 21
No. Part Name
Remarks Q'ty
201 505 9102 019 Poly cover
1
207 511 3893 002 Instruction manual
1
202 504 9102 029 Stilen paper
1
511 3917 001 Instruction manual
KEU
1
203 505 8006...G1C: China model
G1H: Hong Kong model
G2A: Singapore model
KEU: U.S.A. Part No. Part No.
PACKING VIEW
203 204 205 206 207 208 209
210 201
PMA-2000IVR 202
212
209
211
212
PARTS LIST OF ...
Service Manual - Page 22
...AC-LOW
AC OUTLET UNIT
2 12V
1U-3432-8
1 P.
ON/OFF
WHT
POWER SW UNIT YEL 1U-3432-6
12
E
AC INLET
22 PMA-2000IVR
WIRING DIAGRAM
1
2
3
4
5
6
7
8
CY103
10P-EH
1 2 3 4 5 6 7 8 9 10
CY031 123
... 1 CX054
GND 2 5P-EH H/P-R 3
SP-MUTE 4
GND 5
4 NC
GND 4
5 6 7
OUT-L GND OUT-R
FLAT AMP UNIT 1U-3433
GND
+15V -15V
5
1 2
CW056
8 IN-L
R3
9 GND
GND 4
A
WHTx2
+
+15V -15V L-TAP...
Service Manual - Page 23
PMA-2000IVR
SCHEMATIC DIAGRAMS (1/3)
1
2
3
4
5
6
7
8
9
10
11
A
9.5V
9.4V
8.8V
B
11.5V
C
D
12.7V 11.5V
E
F
12.7V
+ B LINE - P=MICRO-MICRO FARAD EACH VOLTAGE AND CURRENT ARE MEASUERD AT MO SIGNAL INPUT CONDITION. WARNING:
G
Parts marked with this symbol
have critical characteristics. Use ONLY replacement parts...the customer until the problem is defective.
k=1,000 ...
Service Manual - Page 24
... the unit to the customer until the problem is defective. CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR NOTICE. Use ONLY replacement parts recommended by the manufacture. k=1,000 OHM ...is located and corrected.
CAUTION:
Before returning the unit to chassis resistance check. PMA-2000IVR
SCHEMATIC DIAGRAMS (1/3)
1
2
3
4
5
6
7
8
9
10
11
A
A
9.5V
9.4V
B8.8V
B
11.5V
...
Service Manual - Page 28
... to either (1) a leakage current check or (2) a line to the customer until the problem is defective. WARNING:
DO NOT return the unit to chassis resistance check. k=1,000 OHM M=1,000,000 OHM ALL CAPACITANCE VALUES IN MICRO FARAD. Use ONLY replacement parts recommended by the manufacture.
P=MICRO-MICRO FARAD EACH VOLTAGE AND CURRENT ARE MEASUERD...
Service Manual - Page 29
... IN MICRO FARAD.
H
SCHEMATIC DIAGRAMS (2/3)
1U-3432 POWER AMP UNIT
24
PMA-2000IVR
SCHEMATIC DIAGRAMS (2/3)
1
2
3
4
5
6
7
8...problem is defective. P=MICRO-MICRO FARAD EACH VOLTAGE AND CURRENT ARE MEASUERD AT MO SIGNAL INPUT CONDITION. WARNING:
DO NOT return the unit to chassis resistance check. CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR NOTICE. WARNING:
Parts...
Service Manual - Page 30
...Parts marked with this symbol
have critical characteristics. G
Use ONLY replacement parts recommended by the manufacture. If the leakage current exceeds 0.5 milliamps, or if the resistance from chassis to either (1) a leakage current check or (2) a line to the customer until the problem...3432 POWER AMP UNIT
24 PMA-2000IVR
SCHEMATIC DIAGRAMS (2/3)
1
2
3
4
5
6
7
8
9
10
11
A
A
B
B...
Service Manual - Page 34
...resistance from chassis to either (1) a leakage current check or (2) a line to the customer until the problem is defective. H
SCHEMATIC DIAGRAMS (2/3)
1U-3432 POWER AMP UNIT
24 G
Use ONLY replacement parts recommended by the manufacture.
E
11V
+ B LINE
F
-
WARNING:
Parts marked with this symbol
have critical characteristics. WARNING:
DO NOT return the unit to chassis resistance...
Service Manual - Page 35
...PMA-2000IVR
SCHEMATIC DIAGRAMS (3/3)
1
2
3
4
5
6
7
8
A
B
C
NOTICE
ALL RESISTANCE VALUES IN OHM. P=MICRO-MICRO FARAD EACH VOLTAGE AND CURRENT ARE MEASUERD AT MO SIGNAL INPUT CONDITION. Use ONLY replacement parts recommended by the manufacture. WARNING:
Parts...current check or (2) a line to the customer until the problem is defective. k=1,000 OHM M=1,000,000 OHM ALL CAPACITANCE ...
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