background image

5

PMA-2000

IV

R

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).

2. Set control as follows.

POWER SWITCH

 OFF (

).

VOLUME CONTROL

 Fully counterclockwise in the minimum position ( 

 ).

    (Main Volume and Semifixed resistors [VR501, 502])

SPEAKER Terminals

 Open: do not connect the speakers, dummy load etc.

 

Adjustment

1. Remove top cover. And then connect DC Voltmeter to test points of 1U-3432-1 (Lch) and 1U-3432-2 (Rch) Power Amp

Printing Wiring Board.

2. Connect power cord to AC wall outlet, and turn POWER switch "ON" (

). Within 10 seconds turn VR501 (Lch) and

VR502 (Rch) clockwise so that the DC Voltmeter reads 12 ±0.5mV.

3. Then after 2 minutes warmup adjust VR501 and VR502 so that the DC Voltmeter reads 12 

±

0.5mV.

4. And after 10 minutes warmup adjust VR501 and VR502 so that the DC Voltmeter reads 12 

±

0.5mV.

METHOD OF ADJUSTMENTS

DC Voltmeter

Main Volume

1U-3432-2

Power Amp P.W.B. (R)

VR502

1U-3432-1

Power Amp P.W.B. (L)

VR501

Power

Trans

Power

Trans

Содержание AVR-1602/682

Страница 1: ...er 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 00...

Страница 2: ...PE 1 CD R TAPE 2 MD 108 dB Tone Control Adjustable Range BASS 100 Hz 8 dB TREBLE 10 kHz 8 dB OTHERS Power Supply AC 230 V 50 Hz Asia AC220 V 50 Hz China AC Outlets Switched 2 100 W Total Except for Ch...

Страница 3: ...ing Top Cover Remove 14 screws 1 4 screws 2 and detach the Top Cover in the arrow direction Top Cover Front Panel 1 Remove 8 screws 3 2 Pull out the knob 4 and remove the nut then detach the panel in...

Страница 4: ...rews 8 2 Detach the Rear Panel in the arrow direction Heat Sink Ass y Heat Sink Ass y Remove 2 screws 9 and detach the Heat Sink Ass y in the arrrow direction Rear Panel Bottom Plate Remove 24 screws...

Страница 5: ...ent 1 Remove top cover And then connect DC Voltmeter to test points of 1U 3432 1 Lch and 1U 3432 2 Rch Power Amp Printing Wiring Board 2 Connect power cord to AC wall outlet and turn POWER switch ON W...

Страница 6: ...N 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...

Страница 7: ...0 P17 P10 P77 P70 P65 AIN5 P60 AIN0 TMP87CC46N 4C08 IC901 Terminal Function Function I O Pin No Port Name Type 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...

Страница 8: ...TC143ES DTC143ZS DTC144WS FRONT VIEW B C E FRONT VIEW B C E FRONT VIEW B C E DTC143ES DTC144WS 47kohm 22kohm R1 R2 R1 R2 E C B LB1639 IC902 1 2 3 4 5 7 8 6 VCC N C VOUT2 VIN1 GND VCONT VOUT1 VIN2 4 6...

Страница 9: ...VC Red TOP VIEW 2SJ78 2SK215 FRONT VIEW G S D 2SK373 Y FRONT VIEW S G D 2SK184C GR BL 2SK369 BL GR C FRONT VIEW D G S 2SK2967 FRONT VIEW G D S DIODES LED included FCH20A15 FRONT VIEW A K A FRH20A15 FR...

Страница 10: ...1 5 1 1 8 1 8 5 1 5 1 5 1 5 1 2 1 2 1 3 1 10 1 4 5 8 1 5 1 6 1 8 1 1 6 10 1 3 1 10 1 4 1 5 COMPONENT SIDE 8 7 6 5 4 3 2 1 A B C D E 10 1U 3432 POWER AMP P W B UNIT Ass y PMA 2000IVR PRINTED WIRING BOA...

Страница 11: ...1 1 1 3 10 6 1 4 5 8 1 1 3 1 11 10 1 8 9 16 1 3 1 5 1 4 1 5 1 6 1 5 1 3 1 3 1 3 1 10 1 11 1 4 5 8 1 5 1 21 22 42 COMPONENT SIDE 8 7 6 5 4 3 2 1 A B C D E PMA 2000IVR 11 1U 3130 INPUT P W B UNIT Ass y...

Страница 12: ...1 5 1 5 1 10 1 3 1 3 COMPONENT SIDE 8 7 6 5 4 3 2 1 A B C D E 12 1U 3433 FLAT AMP P W B UNIT Ass y PMA 2000IVR...

Страница 13: ...ot always in stock and possibly to take a long period of time for supplying or in some case supplying of part may be refused l When ordering of part clearly indicate 1 and I i to avoid mis supplying l...

Страница 14: ...W NB RS14B3A153JNBS RSFSV R533 534 241 2424 926 Carbon film 5 6 kohm 1 4W RD14B2E562JT PSNB R535 536 241 2422 944 Carbon film 1 kohm 1 4W RD14B2E102JT PSNB R537 540 241 2371 930 Fusible resistor 160 o...

Страница 15: ...993 Polypropylene film 47pF 100V CQ93P2A470JT NH2 C509 510 255 4242 901 Polypropylene film 15pF 100V CQ93P2A150JT NH C517 518 255 4252 975 Polypropylene film 270pF 100V CQ93P2A271JT NH2 C519 520 255...

Страница 16: ...903 276 0644 911 Zener diodeMTZJ7 5A T77 LD901 907 393 9557 906 LED SLR 56VCTE7 SC601 279 0038 908 Thyristor SF0R3G42 RESISTORS GROUP R301 310 241 2428 948 Carbon film 330 kohm 1 4W RD14B2E334JT PSNB...

Страница 17: ...254 4368 934 Electrolytic 100uF 25V CE04W1E101MT ASF C906 255 4235 934 Polypropylene film 0 01uF 100V CQ93P2A103JT NH C907 254 4406 702 Electrolytic 3300uF 16V CE04W1C332MC SMG C908 255 4235 934 Poly...

Страница 18: ...2376 964 Carbon film 47 ohm 1 4W NB RD14B2E470JNBST R449 450 241 2428 980 Carbon film 470 kohm 1 4W RD14B2E474JT PSNB R451 454 244 2058 032 Metal oxide 47 ohm 1W NB RS14B3A470JNBS RSFSV R457 458 241...

Страница 19: ...102 71 74 77 102 74 77 74 31 31 28 55 52 101 76 101 71 113 113 101 31 84 97 94 117 116 85 23 48 40 86 86 90 46 89 85 48 23 73 113 101 101 109 101 101 109 8 7 6 5 4 3 2 1 A B C D E EXPLODED VIEW 19 Par...

Страница 20: ...204 8530 006 4P Pin jack JK301 304 4 21 204 8531 005 2P Pin jack C GND JK305 1 22 411 1341 515 Front chassis 1 23 445 0048 016 Cord holder L50 1 24 411 1346 248 Trans chassis 1 25 462 0089 054 Bush 1...

Страница 21: ...07 208 206 203 204 205 209 209 210 211 212 212 201 202 207 511 3893 002 Instruction manual 1 511 3917 001 Instruction manual KEU 1 208 515 0921 005 S S list EX 1 209 503 1221 109 Cushion ass y 1 210 5...

Страница 22: ...12V P ON OFF 1 2 3 4 5 6 SP RELAY ASO POSISTOR GND R OUT GND H P L GND H P R SP MUTE GND 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 CW101 10P EH 5P EH CX054 CW055 CY031 CW056 CX103 CX057 5P EH CY057 C...

Страница 23: ...E 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 m...

Страница 24: ...T 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...

Страница 25: ...12 7V 9 5V 11 5V SCHEMATIC DIAGRAMS 1 3 1 2 3 4 5...

Страница 26: ...9 5V 9 4V 8 8V 11 5V 6 7 8 9 10 11 A B C D E F PMA 2000IVR...

Страница 27: ...12 7V 11 5V...

Страница 28: ...rts 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 leak...

Страница 29: ...R 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 m...

Страница 30: ...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 eith...

Страница 31: ...SCHEMATIC DIAGRAMS 2 3 1 2 3 4 5...

Страница 32: ...11V 11V 6 7 8 9 10 11 A B C D E B LINE PMA 2000IVR...

Страница 33: ......

Страница 34: ...rts 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 leak...

Страница 35: ...CT 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...

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