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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PMA-2000IVR SAFETY PRECAUTIONS The following check should be performed for China model ...impedance when SOURCE DIRECT is defective. DIRECT: 0.9 V/47 kΩ/kohms Amplification factor: 29 dB PRE AMPLIFIER SECTION PHONO EQUALIZER Rated Output: 150 mV (Rec out Terminal) Input Sensitivity/Input Impedance: The value in ... (at 5 mV input) MC: 74 dB (at rated output, 8 Ω/ohms) (1kHz) Input Sensitivity/Input Impedance: P. 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 ...
PMA-2000IVR SAFETY PRECAUTIONS The following check should be performed for China model ...impedance when SOURCE DIRECT is defective. DIRECT: 0.9 V/47 kΩ/kohms Amplification factor: 29 dB PRE AMPLIFIER SECTION PHONO EQUALIZER Rated Output: 150 mV (Rec out Terminal) Input Sensitivity/Input Impedance: The value in ... (at 5 mV input) MC: 74 dB (at rated output, 8 Ω/ohms) (1kHz) Input Sensitivity/Input Impedance: P. 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 ...
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Remove 8 screws 3 . 2. DISASSEMBLY (Do reverse manner when assembling.) Top Cover Remove 14 screws 1 , 4 screws 2 and detach the Top Cover in the arrow direction. 3 Front Panel 3 4 Nut 3 3 Pull out the knob 4 and remove the nut, then detach the panel in the arrow direction. 1 1 PMA-2000IVR 1 2 Top Cover 2 1 Front Panel 1.
Remove 8 screws 3 . 2. DISASSEMBLY (Do reverse manner when assembling.) Top Cover Remove 14 screws 1 , 4 screws 2 and detach the Top Cover in the arrow direction. 3 Front Panel 3 4 Nut 3 3 Pull out the knob 4 and remove the nut, then detach the panel in the arrow direction. 1 1 PMA-2000IVR 1 2 Top Cover 2 1 Front Panel 1.
Service Manual
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Detach the Rear Panel in the arrrow direction. 6 9 Heat Sink Ass'y 7 8 7 4 Remove 5 screws 6 , 6 screws 7 and 2 screws 8 . 2. 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. 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 Remove 5 screws 6 , 6 screws 7 and 2 screws 8 . 2. 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. Bottom Plate Remove 24 screws 5 and detach it in the arrow direction.
Service Manual
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...°C (59°F) and 30°C (86°F). 2. POWER SWITCH VOLUME CONTROL SPEAKER Terminals OFF ( ). Within 10 seconds turn POWER switch "ON" ( ). 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. Set control as follows...
...°C (59°F) and 30°C (86°F). 2. POWER SWITCH VOLUME CONTROL SPEAKER Terminals OFF ( ). Within 10 seconds turn POWER switch "ON" ( ). 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. Set control as follows...
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... 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
... 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
Service Manual
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"I /O Port TMP87CC46N-4C08 (IC901) Terminal Function Pin No. PMA-2000IVR 7 Generator Use Time Base Timer Watch Dog Timer Stack Pointer Data memory (RAM) Program Counter Unviersal register Blank Program Memory (ROM) Interrupt Control Circuit 16 ...
"I /O Port TMP87CC46N-4C08 (IC901) Terminal Function Pin No. PMA-2000IVR 7 Generator Use Time Base Timer Watch Dog Timer Stack Pointer Data memory (RAM) Program Counter Unviersal register Blank Program Memory (ROM) Interrupt Control Circuit 16 ...
Service Manual
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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 ...
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 ...
Service Manual
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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. 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
Service Manual
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... "I" (i) to avoid mis-supplying. l Capacitors Ex.: CE 04W 1H 2R2 M BP Type Shape Dielectric Capacity Allowable Others and per - Use ONLY replacement parts recommended by R. PMA-2000IVR NOTE FOR PARTS LIST l Part indicated with the mark "" are not always in stock and possibly to take a long period of time for those parts...
... "I" (i) to avoid mis-supplying. l Capacitors Ex.: CE 04W 1H 2R2 M BP Type Shape Dielectric Capacity Allowable Others and per - Use ONLY replacement parts recommended by R. PMA-2000IVR NOTE FOR PARTS LIST l Part indicated with the mark "" are not always in stock and possibly to take a long period of time for those parts...
Service Manual
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... 001 Metalized 1uF/50V C354 254 3055 918 Electrolytic 10uF/35V C355 253 1181 917 Ceramic 0.022uF/50V CF93B1H105K(GSG) CE04D1V100MBPT (SME) CK45F1H223ZT(DD-3) 14 PMA-2000IVR PARTS LIST OF P.W.B. No. G1C: China model G1H: Hong Kong model G2A: Singapore model KEU: U.S.A. Part No. model Ref. Part Name SEMICONDUCTORS GROUP Remarks IC103...
... 001 Metalized 1uF/50V C354 254 3055 918 Electrolytic 10uF/35V C355 253 1181 917 Ceramic 0.022uF/50V CF93B1H105K(GSG) CE04D1V100MBPT (SME) CK45F1H223ZT(DD-3) 14 PMA-2000IVR PARTS LIST OF P.W.B. No. G1C: China model G1H: Hong Kong model G2A: Singapore model KEU: U.S.A. Part No. model Ref. Part Name SEMICONDUCTORS GROUP Remarks IC103...
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... 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 No. No. F101 F108,109 F108,109 Part No. PMA-2000IVR Ref.
... 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 No. No. F101 F108,109 F108,109 Part No. PMA-2000IVR Ref.
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... Electrolytic 100uF/25V CE04W1E101MT (SME) C319 254 4557 952 Electrolytic 47uF/50V CE04W1H470MT(RFS) C320 255 4235 934 Polypropylene film 0.01uF/100V CQ93P2A103JT(NH) 16 PMA-2000IVR 1U-3130H INPUT UNIT ASS'Y Ref. No. Part No.
... Electrolytic 100uF/25V CE04W1E101MT (SME) C319 254 4557 952 Electrolytic 47uF/50V CE04W1H470MT(RFS) C320 255 4235 934 Polypropylene film 0.01uF/100V CQ93P2A103JT(NH) 16 PMA-2000IVR 1U-3130H INPUT UNIT ASS'Y Ref. No. Part No.
Service Manual
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... CE04W1H470MT(RFS) C409,410 254 4558 728 Electrolytic 470uF/50V CE04W1H471MC(RFS) C411,412 255 4239 707 Polypropylene film 0.047uF/100V CQ93P2A473JC(NH) 18 No. PMA-2000IVR 1U-3433 FLAT AMP UNIT ASS'Y Ref.
... CE04W1H470MT(RFS) C409,410 254 4558 728 Electrolytic 470uF/50V CE04W1H471MC(RFS) C411,412 255 4239 707 Polypropylene film 0.047uF/100V CQ93P2A473JC(NH) 18 No. PMA-2000IVR 1U-3433 FLAT AMP UNIT ASS'Y Ref.
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PMA-2000IVR EXPLODED VIEW 1 104 2 104 66 67 66 23 104 101 22 92 101 1-4 83 101 93 3 107 106 8 1-6 107 106 13 12 6 11 9 119 1-3 79 ...
PMA-2000IVR EXPLODED VIEW 1 104 2 104 66 67 66 23 104 101 22 92 101 1-4 83 101 93 3 107 106 8 1-6 107 106 13 12 6 11 9 119 1-3 79 ...
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... 0071 016 Terminal ass'y 1 113 9304 210 Push knob ass'y KEU 1 33 477 0018 014 Washer (P-87) D10 2 81 415 9093 003 Teflon washer (VR) 1 PMA-2000IVR Ref. No. unit 146 2088 119 Foot ass'y KEU 4 1-8 AC outlet unit 42 233 6332 000 Power trans G1C,G1H 2 1-9 Pre out unit 233 6330...
... 0071 016 Terminal ass'y 1 113 9304 210 Push knob ass'y KEU 1 33 477 0018 014 Washer (P-87) D10 2 81 415 9093 003 Teflon washer (VR) 1 PMA-2000IVR Ref. No. unit 146 2088 119 Foot ass'y KEU 4 1-8 AC outlet unit 42 233 6332 000 Power trans G1C,G1H 2 1-9 Pre out unit 233 6330...
Service Manual
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PACKING VIEW 203 204 205 206 207 208 209 210 201 PMA-2000IVR 202 212 209 211 212 PARTS LIST OF PACKING & ACCESSORIES Note: The symbol in the column "Remarks" indicate the following destinations. No. Part No. G1C: ...
PACKING VIEW 203 204 205 206 207 208 209 210 201 PMA-2000IVR 202 212 209 211 212 PARTS LIST OF PACKING & ACCESSORIES Note: The symbol in the column "Remarks" indicate the following destinations. No. Part No. G1C: ...
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... 4 POWER AMP(R)UNIT R-OUT 5 GND 6 1U-3432-2 BLKx2 BLKx2 BLKx2 + - ON/OFF WHT POWER SW UNIT YEL 1U-3432-6 12 E AC INLET 22 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-R IN-L GND IN-R 1 RELAY +15V 1 CW055 2 GND...
... 4 POWER AMP(R)UNIT R-OUT 5 GND 6 1U-3432-2 BLKx2 BLKx2 BLKx2 + - ON/OFF WHT POWER SW UNIT YEL 1U-3432-6 12 E AC INLET 22 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-R IN-L GND IN-R 1 RELAY +15V 1 CW055 2 GND...
Service Manual
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... TO CHANGE WITHOUT PRIOR NOTICE. CAUTION: Before returning the unit to the customer until the problem is defective. H SCHEMATIC DIAGRAMS (1/3) 1U-3130 INPUT UNIT 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...
... TO CHANGE WITHOUT PRIOR NOTICE. CAUTION: Before returning the unit to the customer until the problem is defective. H SCHEMATIC DIAGRAMS (1/3) 1U-3130 INPUT UNIT 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...
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... defective. H SCHEMATIC DIAGRAMS (1/3) 1U-3130 INPUT UNIT 23 WARNING: DO NOT return the unit to either (1) a leakage current check or (2) a line 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 C D C 12.7V 11.5V E 12.7V D F + B LINE - CAUTION: Before returning the unit to the customer...
... defective. H SCHEMATIC DIAGRAMS (1/3) 1U-3130 INPUT UNIT 23 WARNING: DO NOT return the unit to either (1) a leakage current check or (2) a line 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 C D C 12.7V 11.5V E 12.7V D F + B LINE - CAUTION: Before returning the unit to the customer...