Service Manual
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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
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
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...) * Maximum dimensions include controls, jacks, and covers. (W) = width, (H) = height, (D) = depth * For improvement purposes, specifications and functions are subject to change without advanced notice. 2 SPECIFICATIONS POWER AMPLIFIER SECTION Rated Output Power: Both channel driven (8 Ω/ohms Load) 80 W + 80 W 20 Hz to 20kHz, T.H.D. 0.07 % (4 Ω/ohms Load) 160 W + 160 W DIN, 1 kHz, T.H.D. 0.7 % Total Harmonic Distortion: 0.01 % (−3 dB at 0.5 mV input) CD, TUNER, DVD/AUX-1, AUX-2, TAPE-1/CD...
...) * Maximum dimensions include controls, jacks, and covers. (W) = width, (H) = height, (D) = depth * For improvement purposes, specifications and functions are subject to change without advanced notice. 2 SPECIFICATIONS POWER AMPLIFIER SECTION Rated Output Power: Both channel driven (8 Ω/ohms Load) 80 W + 80 W 20 Hz to 20kHz, T.H.D. 0.07 % (4 Ω/ohms Load) 160 W + 160 W DIN, 1 kHz, T.H.D. 0.7 % Total Harmonic Distortion: 0.01 % (−3 dB at 0.5 mV input) CD, TUNER, DVD/AUX-1, AUX-2, TAPE-1/CD...
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Detach the Rear Panel in the arrrow direction. 6 9 Heat Sink Ass'y 7 8 7 4 Rear Panel Heat Sink Ass'y Remove 2 screws 9 and detach the Heat Sink Ass'y in the arrow direction. PMA-2000IVR 5 Bottom Plate Rear Panel 1. Remove 5 screws 6 , 6 screws 7 and 2 screws 8 . 2. Bottom Plate Remove 24 screws 5 and detach it in the arrow direction.
Detach the Rear Panel in the arrrow direction. 6 9 Heat Sink Ass'y 7 8 7 4 Rear Panel Heat Sink Ass'y Remove 2 screws 9 and detach the Heat Sink Ass'y in the arrow direction. PMA-2000IVR 5 Bottom Plate Rear Panel 1. Remove 5 screws 6 , 6 screws 7 and 2 screws 8 . 2. Bottom Plate Remove 24 screws 5 and detach it in the arrow direction.
Service Manual
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...-2 Power Amp P.W.B. (R) IDLING CURRENT Setup 1. Connect power cord to test points of 1U-3432-1 (Lch) and 1U-3432-2 (Rch) Power Amp Printing Wiring Board. 2. Adjustment 1. Then after 10 minutes warmup adjust VR501 and VR502 so that the DC Voltmeter reads 12 ±0.5mV. 3. Fully counterclockwise in the minimum position ( ). (Main Volume and Semifixed resistors [VR501, 502]) Open: do not connect the speakers, dummy load etc. Remove top...
...-2 Power Amp P.W.B. (R) IDLING CURRENT Setup 1. Connect power cord to test points of 1U-3432-1 (Lch) and 1U-3432-2 (Rch) Power Amp Printing Wiring Board. 2. Adjustment 1. Then after 10 minutes warmup adjust VR501 and VR502 so that the DC Voltmeter reads 12 ±0.5mV. 3. Fully counterclockwise in the minimum position ( ). (Main Volume and Semifixed resistors [VR501, 502]) Open: do not connect the speakers, dummy load etc. Remove top...
Service Manual
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...) 3 4 5 6 BASS TREBLE BUFFER BALANCE TONE SOURCE DIRECT OFF ON FLAT AMP MAIN VOLUME POWER AMP DIRECT OFF ON POWER AMP SPEAKER A (MAIN) SPEAKER B (BI WIRING) HEAD PHONE PROTECTOR +16V EQUALIZER GND -16V +16V TONE AMP GND -16V +16V POWER AMP GND -16V POWER AMP VOLTAGE POWER GND REGULATOR + + +30V POWER AMP FLAT AMP GND -30V +12V PROTECTOR + & RELAY GND 80W/8ohm 25.3V(28dB) PMA-2000IVR 7 8 A B C AC PLUG D E 6 BLOCK/LEVEL DIAGRAM 1 2 47k 100 PHONO MM + - MC RIAA CD TUNER INPUT DVD /AUX-1 AUX...
...) 3 4 5 6 BASS TREBLE BUFFER BALANCE TONE SOURCE DIRECT OFF ON FLAT AMP MAIN VOLUME POWER AMP DIRECT OFF ON POWER AMP SPEAKER A (MAIN) SPEAKER B (BI WIRING) HEAD PHONE PROTECTOR +16V EQUALIZER GND -16V +16V TONE AMP GND -16V +16V POWER AMP GND -16V POWER AMP VOLTAGE POWER GND REGULATOR + + +30V POWER AMP FLAT AMP GND -30V +12V PROTECTOR + & RELAY GND 80W/8ohm 25.3V(28dB) PMA-2000IVR 7 8 A B C AC PLUG D E 6 BLOCK/LEVEL DIAGRAM 1 2 47k 100 PHONO MM + - MC RIAA CD TUNER INPUT DVD /AUX-1 AUX...
Service Manual
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... NOTE: Pin No. : Terminal number of port. PMA-2000IVR 7 Oscillator Connection Terminal XIN XOUT PSW ALU Flag RBS System Control Circuit Standby Control Circuit Timing Generator High Freq. Port Name I/O Type Function 1 P77 O C AC POWER RELAY DRIVE 2 P76 O C 3 P75 (SO) O C 4 P74 (SI) O C 5 P73 (SCK) O C 6 P72 O C MUTE/STAND-BY LED DRIVE 7 P71 (INT4) O C MOTOR VOLUME UP 8 P70 (INT3) I C REMOTE CONTROL SIGNAL INPUT 9 P07 O C TAPE-2 LED, ARELAY...
... NOTE: Pin No. : Terminal number of port. PMA-2000IVR 7 Oscillator Connection Terminal XIN XOUT PSW ALU Flag RBS System Control Circuit Standby Control Circuit Timing Generator High Freq. Port Name I/O Type Function 1 P77 O C AC POWER RELAY DRIVE 2 P76 O C 3 P75 (SO) O C 4 P74 (SI) O C 5 P73 (SCK) O C 6 P72 O C MUTE/STAND-BY LED DRIVE 7 P71 (INT4) O C MOTOR VOLUME UP 8 P70 (INT3) I C REMOTE CONTROL SIGNAL INPUT 9 P07 O C TAPE-2 LED, ARELAY...
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... E R1 R2 DTA114ES 10kohm 10kohm R1 R2 DTC114ES 10kohm 10kohm DTC143ES 4.7kohm 4.7kohm DTC143ZS 4.7kohm 47kohm DTC144WS 47kohm 22kohm 8 PMA-2000IVR LB1639 (IC902) TOP VIEW VIN1 1 GND 2 VCONT 3 VIN2 4 8 VOUT1 7 VCC 6 N.C. 5 VOUT2 VOUT1 VOUT2 85 VREF BA4558 (IC701) NJM2082D (IC201) 7 VCC 3 VCONT 2 GND A OUTPUT 1 A -INPUT 2 A+INPUT 3 V4 1 2 8V 7 B OUTPUT 6 B -INPUT 5 B +INPUT VIN1 1 OTHERS GP1U27X (Remote Control Sensor) (IC103) TOP VIEW 4 VIN2 6 N.C.
... E R1 R2 DTA114ES 10kohm 10kohm R1 R2 DTC114ES 10kohm 10kohm DTC143ES 4.7kohm 4.7kohm DTC143ZS 4.7kohm 47kohm DTC144WS 47kohm 22kohm 8 PMA-2000IVR LB1639 (IC902) TOP VIEW VIN1 1 GND 2 VCONT 3 VIN2 4 8 VOUT1 7 VCC 6 N.C. 5 VOUT2 VOUT1 VOUT2 85 VREF BA4558 (IC701) NJM2082D (IC201) 7 VCC 3 VCONT 2 GND A OUTPUT 1 A -INPUT 2 A+INPUT 3 V4 1 2 8V 7 B OUTPUT 6 B -INPUT 5 B +INPUT VIN1 1 OTHERS GP1U27X (Remote Control Sensor) (IC103) TOP VIEW 4 VIN2 6 N.C.
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UNIT Ass'y 8 5 1 1 A 5 1 1 5 1 1 5 1 5 4 1 31 10 1 6 1 10 1 6 1 8 1 8 1 5 13 B 2 1 1 5 5 1 1 2 1 8 C 4 5 10 1 D E COMPONENT SIDE 10 PMA-2000IVR PRINTED WIRING BOARDS 1 2 3 4 5 6 7 8 1U-3432 POWER AMP P.W.B.
UNIT Ass'y 8 5 1 1 A 5 1 1 5 1 1 5 1 5 4 1 31 10 1 6 1 10 1 6 1 8 1 8 1 5 13 B 2 1 1 5 5 1 1 2 1 8 C 4 5 10 1 D E COMPONENT SIDE 10 PMA-2000IVR PRINTED WIRING BOARDS 1 2 3 4 5 6 7 8 1U-3432 POWER AMP P.W.B.
Service Manual
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... Schematic Diagram for those parts.) WARNING: Parts marked with the mark " " is included after the dieelectric strength value. 13 Use ONLY replacement parts recommended by R. Capacity (except electrolyte) 2 2 2 ⇒ 2200pF=0.0022µF s s (More than 2) Indicates number of zeros after effective number. 2-digit effective number. • Units: pF. 2 2 1 ⇒ 220pF s s (0 or 1) Indicates number of part may be supplied. l When ordering of zeros after effective number. 2-digit...
... Schematic Diagram for those parts.) WARNING: Parts marked with the mark " " is included after the dieelectric strength value. 13 Use ONLY replacement parts recommended by R. Capacity (except electrolyte) 2 2 2 ⇒ 2200pF=0.0022µF s s (More than 2) Indicates number of zeros after effective number. 2-digit effective number. • Units: pF. 2 2 1 ⇒ 220pF s s (0 or 1) Indicates number of part may be supplied. l When ordering of zeros after effective number. 2-digit...
Service Manual
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...0040 909 Fuse clip JK306 JK501 204 8530 006 4P Pin jack 204 8480 004 Head phone jack (SW) RL101 214 0202 009 Relay DG1U TV-8 RL403 214 0127 003 Relay (RY-12W) RL501,502 214 0195 006 Relay FTR-F1 S101 212 1176 002 Power switch S201 ...Connector base (BK) 1 CZ081 204 2311 001 8P EH-SCN Connector cord 1 F101 206 1015 087 Fuse (4.0A) G1C,G1H,G2A 1 Remarks Q'ty KEU 1 KEU 2 G2A 2 1 G2A,KEU 2 1 G2A,KEU 2 1 1 1 1 2 1 1 1 1 1 1 G1C,G1H,G2A 1 KEU 1 2 1 1 2 G1C,G1H,G2A 1 G2A 1 4 2 4 KEU 1 KEU 1 15 PMA-2000IVR Ref. C463 C471,472 C473-476 C481 C482 Part...
...0040 909 Fuse clip JK306 JK501 204 8530 006 4P Pin jack 204 8480 004 Head phone jack (SW) RL101 214 0202 009 Relay DG1U TV-8 RL403 214 0127 003 Relay (RY-12W) RL501,502 214 0195 006 Relay FTR-F1 S101 212 1176 002 Power switch S201 ...Connector base (BK) 1 CZ081 204 2311 001 8P EH-SCN Connector cord 1 F101 206 1015 087 Fuse (4.0A) G1C,G1H,G2A 1 Remarks Q'ty KEU 1 KEU 2 G2A 2 1 G2A,KEU 2 1 G2A,KEU 2 1 1 1 1 2 1 1 1 1 1 1 G1C,G1H,G2A 1 KEU 1 2 1 1 2 G1C,G1H,G2A 1 G2A 1 4 2 4 KEU 1 KEU 1 15 PMA-2000IVR Ref. C463 C471,472 C473-476 C481 C482 Part...
Service Manual
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... 0765 311 Shield plate 1 1U-3432A Power amp P.W.B. model Ref. No. PARTS LIST OF EXPLODED VIEW Note: The symbol in the column "Remarks" indicate the following destinations. No. unit Ass'y G2A 1 35 412 4390 016 TC bracket 2 1-1 Power amp unit (L) 36 415 9016 019 P.C.B holder 4 1-2 Power amp unit (R) 37 412 4112 113 P.W.B bracket (A) 1 1-3 Control unit 38 203 3970 008 AC...
... 0765 311 Shield plate 1 1U-3432A Power amp P.W.B. model Ref. No. PARTS LIST OF EXPLODED VIEW Note: The symbol in the column "Remarks" indicate the following destinations. No. unit Ass'y G2A 1 35 412 4390 016 TC bracket 2 1-1 Power amp unit (L) 36 415 9016 019 P.C.B holder 4 1-2 Power amp unit (R) 37 412 4112 113 P.W.B bracket (A) 1 1-3 Control unit 38 203 3970 008 AC...
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... AC cord KEU 1 212 Control card 1 205 399 0523 005 Remote control unit (RC-858) 1 213 513 3540 018 Carton label G1C 1 206 Battery (R03X2) 1 215 513 9111 001 Color label (Gold) 1 216 515 0690 404 DEL warranty home KEU 1 21 model Ref. PACKING VIEW 203 204 205 206 207 208 209 210 201 PMA-2000IVR...
... AC cord KEU 1 212 Control card 1 205 399 0523 005 Remote control unit (RC-858) 1 213 513 3540 018 Carton label G1C 1 206 Battery (R03X2) 1 215 513 9111 001 Color label (Gold) 1 216 515 0690 404 DEL warranty home KEU 1 21 model Ref. PACKING VIEW 203 204 205 206 207 208 209 210 201 PMA-2000IVR...
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... 1 CY051 5P-EH 3C(RED,BLK,BLU)x2 BLKx2 -55V GNDGNDGND+55V CX031 3P-VH 1 2 3 +55V GND -55V POWER SUPPLY UNIT 1U-3130-3 BLK BLU BLK BLU D WHT YEL CX051 5 AC-LOW 4 GND 3 AC-LOW AC OUTLET UNIT 2 12V 1U-3432-8 1 P. SPEAKER OUTPUT - 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 +55V GND -55V RELAY GND DIRECT NC OUT-L GND OUT...
... 1 CY051 5P-EH 3C(RED,BLK,BLU)x2 BLKx2 -55V GNDGNDGND+55V CX031 3P-VH 1 2 3 +55V GND -55V POWER SUPPLY UNIT 1U-3130-3 BLK BLU BLK BLU D WHT YEL CX051 5 AC-LOW 4 GND 3 AC-LOW AC OUTLET UNIT 2 12V 1U-3432-8 1 P. SPEAKER OUTPUT - 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 +55V GND -55V RELAY GND DIRECT NC OUT-L GND OUT...
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...VALUES IN OHM. WARNING: G Parts marked with this symbol have critical characteristics. CAUTION: Before returning the unit to the customer, make sure you make either side of the power card is less than 460kohms, ...a line to the customer until the problem is defective. H SCHEMATIC DIAGRAMS (1/3) 1U-3130 INPUT UNIT 23 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. Use ONLY replacement parts recommended by the manufacture. PMA-2000IVR SCHEMATIC DIAGRAMS (1/3) 1 2 3 4 5 6 ...
...VALUES IN OHM. WARNING: G Parts marked with this symbol have critical characteristics. CAUTION: Before returning the unit to the customer, make sure you make either side of the power card is less than 460kohms, ...a line to the customer until the problem is defective. H SCHEMATIC DIAGRAMS (1/3) 1U-3130 INPUT UNIT 23 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. Use ONLY replacement parts recommended by the manufacture. PMA-2000IVR SCHEMATIC DIAGRAMS (1/3) 1 2 3 4 5 6 ...
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... PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR NOTICE. Use ONLY replacement parts recommended by the manufacture. WARNING: G Parts marked with this symbol have critical characteristics. 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. CAUTION: Before returning the unit to the customer, make...
... PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR NOTICE. Use ONLY replacement parts recommended by the manufacture. WARNING: G Parts marked with this symbol have critical characteristics. 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. CAUTION: Before returning the unit to the customer, make...
Service Manual
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...VOLTAGE AND CURRENT ARE MEASUERD AT MO SIGNAL INPUT CONDITION. WARNING: DO NOT return the unit to the customer until the problem is defective. If the leakage current ...make either side of the power card is less than 460kohms, the unit is located and corrected. CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR NOTICE. E F 12.7V + B LINE - Use ONLY replacement parts recommended by the manufacture. WARNING: G Parts marked with this symbol have critical characteristics. B LINE SIGNAL LINE NOTICE ALL RESISTANCE VALUES IN OHM. H SCHEMATIC DIAGRAMS (1/3) 1U-3130 INPUT...
...VOLTAGE AND CURRENT ARE MEASUERD AT MO SIGNAL INPUT CONDITION. WARNING: DO NOT return the unit to the customer until the problem is defective. If the leakage current ...make either side of the power card is less than 460kohms, the unit is located and corrected. CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR NOTICE. E F 12.7V + B LINE - Use ONLY replacement parts recommended by the manufacture. WARNING: G Parts marked with this symbol have critical characteristics. B LINE SIGNAL LINE NOTICE ALL RESISTANCE VALUES IN OHM. H SCHEMATIC DIAGRAMS (1/3) 1U-3130 INPUT...
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... check or (2) a line to the customer, make sure you make either side of the power card is less than 460kohms, the unit is located and corrected. H SCHEMATIC DIAGRAMS (2/3) 1U-3432 POWER AMP UNIT 24 G Use ONLY replacement parts recommended by the manufacture. P=MICRO-MICRO FARAD EACH VOLTAGE AND CURRENT ARE MEASUERD AT MO SIGNAL INPUT CONDITION. PMA-2000IVR SCHEMATIC DIAGRAMS (2/3) 1 2 3 4 5 6 7 8 9 10 11 A B C 11V D E 11V + B LINE...
... check or (2) a line to the customer, make sure you make either side of the power card is less than 460kohms, the unit is located and corrected. H SCHEMATIC DIAGRAMS (2/3) 1U-3432 POWER AMP UNIT 24 G Use ONLY replacement parts recommended by the manufacture. P=MICRO-MICRO FARAD EACH VOLTAGE AND CURRENT ARE MEASUERD AT MO SIGNAL INPUT CONDITION. PMA-2000IVR SCHEMATIC DIAGRAMS (2/3) 1 2 3 4 5 6 7 8 9 10 11 A B C 11V D E 11V + B LINE...
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... with this symbol have critical characteristics. G Use ONLY replacement parts recommended by the manufacture. H SCHEMATIC DIAGRAMS (2/3) 1U-3432 POWER AMP UNIT 24 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 is defective. B LINE SIGNAL LINE NOTICE ALL RESISTANCE VALUES IN OHM. WARNING...
... with this symbol have critical characteristics. G Use ONLY replacement parts recommended by the manufacture. H SCHEMATIC DIAGRAMS (2/3) 1U-3432 POWER AMP UNIT 24 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 is defective. B LINE SIGNAL LINE NOTICE ALL RESISTANCE VALUES IN OHM. WARNING...
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...SCHEMATIC DIAGRAMS (2/3) 1U-3432 POWER AMP UNIT 24 E 11V + B LINE F - G Use ONLY replacement parts recommended by the manufacture. P=MICRO-MICRO FARAD EACH VOLTAGE AND CURRENT ARE MEASUERD AT MO SIGNAL INPUT CONDITION. CAUTION: Before returning the unit to the customer, make sure you make either side of the power ...000,000 OHM ALL CAPACITANCE VALUES IN MICRO FARAD. WARNING: Parts marked with this symbol have critical characteristics. CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR NOTICE. B LINE SIGNAL LINE NOTICE ALL RESISTANCE VALUES IN OHM. If the leakage ...
...SCHEMATIC DIAGRAMS (2/3) 1U-3432 POWER AMP UNIT 24 E 11V + B LINE F - G Use ONLY replacement parts recommended by the manufacture. P=MICRO-MICRO FARAD EACH VOLTAGE AND CURRENT ARE MEASUERD AT MO SIGNAL INPUT CONDITION. CAUTION: Before returning the unit to the customer, make sure you make either side of the power ...000,000 OHM ALL CAPACITANCE VALUES IN MICRO FARAD. WARNING: Parts marked with this symbol have critical characteristics. CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR NOTICE. B LINE SIGNAL LINE NOTICE ALL RESISTANCE VALUES IN OHM. If the leakage ...
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... AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR NOTICE. WARNING: Parts marked with this symbol have critical characteristics. B LINE Lch SIGNAL LINE Rch SIGNAL LINE E SCHEMATIC DIAGRAMS (3/3) 1U-3433 FLAT AMP UNIT 25 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 is...
... AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR NOTICE. WARNING: Parts marked with this symbol have critical characteristics. B LINE Lch SIGNAL LINE Rch SIGNAL LINE E SCHEMATIC DIAGRAMS (3/3) 1U-3433 FLAT AMP UNIT 25 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 is...
