Denon PMA-2000 IV - Amplifier Service Manual
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Denon PMA-2000 IV - Amplifier Service Manual

Hi-fi integrated stereo amplifier
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Hi-Fi Integrated Stereo Amplifier
SERVICE MANUAL
IV R
PMA-2000
MODEL
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

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  • Page 1 Hi-Fi Integrated Stereo Amplifier SERVICE MANUAL IV R PMA-2000 MODEL 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...

  • Page 2: Safety Precautions

    PMA-2000 IV R 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.

  • Page 3: Top Cover

    IV R PMA-2000 DISASSEMBLY (Do reverse manner when assembling.) Top Cover Remove 14 screws , 4 screws and detach the Top Cover in the arrow direction. Top Cover Front Panel 1. Remove 8 screws 2. Pull out the knob and remove the nut, then detach the panel in the arrow direction.

  • Page 4: Rear Panel

    IV R PMA-2000 Bottom Plate Remove 24 screws and detach it in the arrow direction. Bottom Plate Rear Panel 1. Remove 5 screws , 6 screws and 2 screws 2. Detach the Rear Panel in the arrow direction. Rear Panel Heat Sink Ass'y Remove 2 screws and detach the Heat Sink Ass'y in the...
  • Page 5 IV R PMA-2000 METHOD OF ADJUSTMENTS DC Voltmeter Power Trans VR502 VR501 Power Trans 1U-3432-2 1U-3432-1 Power Amp P.W.B. (R) Power Amp P.W.B. (L) Main Volume IDLING CURRENT Setup 1. Lay the unit at an ordinary position away from a direct current from an air condition or fan. Do the adjustment at a temperature between 15°C (59°F) and 30°C (86°F).
  • Page 6 PMA-2000 IV R BLOCK/LEVEL DIAGRAM BASS TREBLE PHONO SOURCE DIRECT TONE RIAA BUFFER BALANCE SPEAKER A FLAT AMP (MAIN) MAIN VOLUME POWER AMP TUNER SPEAKER B INPUT (BI WIRING) POWER AMP DIRECT HEAD PHONE /AUX-1 AUX-2 PROTECTOR TAPE-1 +16V /CD-R EQUALIZER -16V TAPE-2...
  • Page 7 PMA-2000 IV R SEMICONDUCTORS TMP87CC46N-4C08 (IC901) Terminal Function IC’s Port Name Type Function TMP87CC46N-4C08 (IC901) AC POWER RELAY DRIVE (SO) (SI) (HSO)P77 (HSCK)P76 P22(XOUT) (SCK) (SO)P75 P21(XIN) MUTE/STAND-BY LED DRIVE (SI)P74 P20(INTS/STOP) (INT4) MOTOR VOLUME UP (SCK)P73 (INT3) REMOTE CONTROL SIGNAL INPUT (PDO/PWM)P72 TAPE-2 LED, ARELAY DRIVE (INT4)P71...
  • Page 8 IV R PMA-2000 LB1639 (IC902) BA4558 (IC701) NJM2082D (IC201) OUT1 OUT2 TOP VIEW OUT1 A OUTPUT A –INPUT B OUTPUT N.C. CONT B –INPUT A+INPUT B +INPUT OUT2 CONT N.C.  OTHERS GP1U27X (Remote Control Sensor) (IC103) TOP VIEW Head Limiter Detector &...
  • Page 9 IV R PMA-2000 2SJ78 2SK373 (Y) 2SK184C (GR/BL) 2SK2967 2SK215 2SK369 (BL/GR)-C FRONT FRONT FRONT FRONT VIEW VIEW VIEW VIEW G S D S G D D G S G D S  DIODES (LED included) 11EQS06 HZS2B-1 SLR-56VC (Red) 31DQ06 HZS3B-2 TOP VIEW...
  • Page 10 PMA-2000 PRINTED WIRING BOARDS 1U-3432 POWER AMP P .W.B. UNIT Ass'y COMPONENT SIDE...
  • Page 11 PMA-2000 1U-3130 INPUT P .W.B. UNIT Ass'y COMPONENT SIDE...
  • Page 12 PMA-2000 1U-3433 FLAT AMP P .W.B. UNIT Ass'y COMPONENT SIDE...
  • Page 13 IV R PMA-2000 NOTE FOR PARTS LIST Part indicated with the mark " " are not always in stock and possibly to take a long period of time for supplying, or in some case supplying of part may be refused. When ordering of part, clearly indicate "1"...
  • Page 14 IV R PMA-2000 PARTS LIST OF P.W.B. UNIT ASS'Y Note: The symbol in the column "Remarks" indicate the following destinations. G1C: China model G1H: Hong Kong model 1U-3432 POWER AMP UNIT ASS'Y G2A: Singapore model KEU: U.S.A. model Ref. No. Part No.
  • Page 15 IV R PMA-2000 Ref. No. Part No. Part Name Remarks Ref. No. Part No. Part Name Remarks Q'ty C463 254 4313 921 Electrolytic 22uF/50V CE04W1H220MT(ASF) F101 206 1046 043 Fuse 10A C471,472 255 4251 976 Polypropylene film 100pF/100V CQ93P2A101JT(NH2) F108,109 206 1046 027 Fuse 5A C473-476 254 4313 918 Electrolytic 10uF/50V...
  • Page 16 IV R PMA-2000 1U-3130H INPUT UNIT ASS'Y Ref. No. Part No. Part Name Remarks Ref. No. Part No. Part Name Remarks SEMICONDUCTORS GROUP ZD603 276 0645 907 Zener diode MTZJ18A T77 ZD604 276 0460 904 Zener diode HZS5C-1TD IC701 263 0322 004 IC BA4558 ZD605 276 0473 904 Zener diodeÞ...
  • Page 17 IV R PMA-2000 Ref. No. Part No. Part Name Remarks Ref. No. Part No. Part Name Remarks C603 255 4257 938 Polypropylene film 0.022uF/100V CQ93P2A223JT(NH2) OTHER PARTS GROUP Q'ty C604 254 4576 700 Electrolytic 2200uF/35V CE04W1V222MC(RE3) CX031 205 0653 036 3P VH Connector base C607 254 4260 919 Electrolytic 0.22uF/50V CE04W1HR22MT (SME)
  • Page 18 IV R PMA-2000 1U-3433 FLAT AMP UNIT ASS'Y Ref. No. Part No. Part Name Remarks Ref. No. Part No. Part Name Remarks SEMICONDUCTORS GROUP C413,414 254 4557 952 Electrolytic 47uF/50V CE04W1H470MT(RFS) C415,416 254 4558 702 Electrolytic 100uF/50V CE04W1H101MC(RFS) TR401-404 275 0042 905 Transistor 2SK373(Y)TPE2 C421,422 255 4251 976 Polypropylene film 10pF/100V CQ93P2A101JT(NH2) TR405...
  • Page 19 PMA-2000 EXPLODED VIEW WARNING: Parts marked with this symbol have critical characteristics. Use ONLY replacement parts recommended by the G2A only manufacturer. 87 88...
  • Page 20 PMA-2000 IV R Note: The symbol in the column "Remarks" indicate the following destinations. PARTS LIST OF EXPLODED VIEW G1C: China model G1H: Hong Kong model G2A: Singapore model KEU: U.S.A. model Ref. No. Part No. Part Name Remarks Q'ty Ref.
  • Page 21 IV R PMA-2000 PACKING VIEW 203 204 205 207 208 Note: The symbol in the column "Remarks" indicate the following destinations. PARTS LIST OF PACKING & ACCESSORIES G1C: China model G1H: Hong Kong model G2A: Singapore model KEU: U.S.A. model Ref.
  • Page 22 PMA-2000 WIRING DIAGRAM CY103 10P-EH CY031 1 2 3 4 5 6 7 8 9 10 1 2 3 +15V CW055 RELAY -15V CONTROL UNIT DIRECT 1U-3432-3 CX054 CX041 H/P-L RELAY OUT-L 5P-EH 4P-KR FLAT AMP UNIT H/P-MUTE 1U-3432-10 H/P-R +15V CW056 1U-3433...
  • Page 23 PMA-2000 SCHEMATIC DIAGRAMS (1/3) 9.5V 9.4V 8.8V 11.5V 12.7V 11.5V 12.7V 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.
  • Page 24 PMA-2000 SCHEMATIC DIAGRAMS (1/3) 9.5V 9.4V 8.8V 11.5V 12.7V 11.5V 12.7V 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.
  • Page 25 SCHEMATIC DIAGRAMS (1/3) 9.5V...
  • Page 26 PMA-2000 9.5V 9.4V 8.8V 11.5V...
  • Page 27 12.7V 11.5V...
  • Page 28 12.7V 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.
  • Page 29 PMA-2000 SCHEMATIC DIAGRAMS (2/3) + 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.
  • Page 30 PMA-2000 SCHEMATIC DIAGRAMS (2/3) + 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.
  • Page 31 SCHEMATIC DIAGRAMS (2/3)
  • Page 32 PMA-2000...
  • Page 34 + 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.
  • Page 35 PMA-2000 SCHEMATIC DIAGRAMS (3/3) NOTICE WARNING: ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM Parts marked with this symbol have critical characteristics. + B LINE ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD Use ONLY replacement parts recommended by the manufacture. EACH VOLTAGE AND CURRENT ARE MEASUERD AT MO SIGNAL INPUT CAUTION: - B LINE...

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Avr-1602/682Pma-2000 ivr

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