Yamaha PW5000 Power Supply Service Manual 电路图.pdf
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1、PW5000 1 SERVICE MANUAL PA 011697 Copyright (c) Yamaha Corporation. All rights reserved. 03.09 HAMAMATSU, JAPAN POWER SUPPLY CONTENTS SPECIFICATIONS. 3 PANEL LAYOUT. 4 DIMENSIONS. 5 CIRCUIT BOARD LAYOUT. 6 DISASSEMBLY PROCEDURE. 7 IC BLOCK DIAGRAM. 12 CIRCUIT BOARDS. 13 INSPECTIONS.19/22 PARTS LIST
2、POWER SUPPLY UNIT REPAIR MANUAL BLOCK among the 4 voltage display LED, the +16, -16 “CAUTION” LED lights up (“NORMAL” LED of +12, +48 light up). Also check that the unit shuts down about 8 2 seconds after power is turned on but that the two +16, -16 “CAUTION” LED and the “POWER” LED remain lit up. 2
3、. Check that when power is turned on while the CN502 of AC 3/3 circuit board is removed, the 4 voltage display “NORMAL” LED light up. Also check that the unit shuts down about 8 2 seconds after power is turned on, and that only the “POWER” LED remains lit up. 3. Check that when power is turned on wh
4、ile CN209 of DC circuit board is removed, the fan “HIGH” LED lights up (Fan itself also rotates at high speed). Also check that the 4 “NORMAL” LED, and the “THERMAL” LED light up about 4 2 seconds after power is turned on. Further check that the unit shuts down about 8 2 seconds after power is turne
5、d on, but that the “THERMAL” “HIGH” and “POWER” LED remain lit up. After making the above checks, reinsert the connectors that were removed in each item to make the above checks. 21 PW5000 3-1-5 Check operation of +12 volt and +48 volt detector circuits 1. Check that about 4 2 seconds after power is
6、 turned on while the power supply units primary line (CN103 of AC 1/3 circuit board) is disconnected; among the 4 voltage display LED, the +12, +48 “CAUTION” LED lights up (“NORMAL” LED of +16, -16 light up). Also check that the unit shuts down about 8 2 seconds after power is turned on but that the
7、 two +12V, +48V “CAUTION” LED and “POWER” LED remain lit up. 2. Check that about 4 2 seconds after power is turned on while the power supply units secondary line (CN110 of AC 1/3 circuit board) is disconnected; among the 4 voltage display LED, the +12 “CAUTION” LED lights up and (+16, -16, +48 “NORM
8、AL” LED light up). Also check that the unit shuts down about 8 2 seconds after power is turned on but that the 1 “CAUTION” LED (+12) and “POWER” LED remain lit up. After making the above checks, reinsert the connectors that were removed in each item to make the above checks. 3-1-6 Check operation of
9、 FAN STOP detector circuit Clamp the fan so that it does not rotate. Then check that the “NORMAL” LED and “STOP” LED (red) light up about 4 2 seconds after power is turned on. Make this check separately for the 2 left and right fan units. After finished making the above check be sure to unclamp the
10、fan. POWEROPERATION MONITOR NORMAL CAUTION +16+12+48STOP THERMAL FAN SPEED AUTOHIGH HIGH -16 FAN Green LEDGreen LED Red LED Fig. 3) LED and panel peripheral component names PW5000 22 1 2 3 456 7 89 10 1112 13 1415 16 1718 1920 212223 24 2526 27 +48VGND REMOTE 3 : FG 6,11,16,21 :16VGND 7,12,17,18 :+1
11、2VGND 8,13: REMOTE PW5000動作確認図1示()図2示電圧祖確認用 準備。 DC OUTPUT接続。 図1 ():VP012200 (端子面側) 1 2 3 4567 89 1011 12 1314 15 161718 1920 21 22 23 24 2526 27 電圧測定用(測定)DC PARALLEL INPUT接続。 図2 (端子面側) -16V16VGND +16V +48VGND +48V +12VGND +12V ():VP012100 1:-16V 6:16VGND 9:+16V 18:-12VGND 19:+48V 24:+48VGND 25:+12V
12、検査 1.準備 AC 電源使用場合、AC 波形歪確認。 23 PW5000 2.構成 16V、+12V、+48V 電源回路 回路 一次電源電圧(LINE VOLTAGE)表示回路(以下LV 記載。 ) 3.電気的性能 3-1動作確認 3-1-1 LV回路動作確認 一次電源投入同時、電源 ON/OFF関 LV 表示確認。 3-1-2 無負荷動作確認 DC OUTPUT 接続確認。 電源投入、 POWERLED(緑)点灯、FAN回転、動作音無、 42 秒後CAUTION(赤),STOP(赤),THERMAL(赤)全(計6)点灯確認。 DCOUTPUT接続。 電源投入同時、 POWERLED(緑色)
13、点灯、FAN(2個)回転確認。 電源投入後、4 2 秒後電圧表示 LEDNORMAL(緑)点灯確認。 FAN AUTO/HIGH、 AUTO側FAN回転低速、 HIGH側、 HIGH LED 点灯回転高速確認。 確認終了後FAN AUTO/HIGHAUTO戻。 点灯箇所、P24 図 3参照。 3-1-3 +12V系統、+48V系統、+16V系統、-16V 系統出力電圧確認 1) +12V系統 電圧測定用(+12V +12VGND 間)約13V 確認。 2) +48V系統 電圧測定用(+48V +48VGND 間)約49V 確認。 3) +16V系統 電圧測定用(+16V 16VGND 間)約1
14、7V確認。 3) -16V 系統 電圧測定用(-16V 16VGND間)約-17V確認。 3-1-4 16V検出回路動作確認 1. 16V系統一次線(AC 1/3CN101CN102)外状態電源投入、投入後42秒後電 圧表示 LED +16、-16CAUTIONLED点灯(+12、+48 NORMALLED点灯)、 投入後 82秒後+16、-16CAUTIONLED 2個POWERLED点灯 確認。 2. AC 3/3 CN502外状態電源投入、投入後4 2 秒後電圧表示LEDNORMAL点 灯、投入後 8 2秒後、 POWERLED点灯確認。 3. DCCN209外状態電源投入、FANHIG
15、H LED点灯(FAN自体高回転)、投入後 42秒後NORMALLED 4、 THERMALLED点灯、投入後82秒後、 THERMAL 、 HIGH 、 POWERLED点灯確認。 確認実施後、各項目毎外挿入。 PW5000 24 3-1-5 +12V、+48V 電源検出回路動作確認 1.電源一次線(AC 1/3CN103 )外状態電源投入、42秒後電圧表示LED +12、+48CAUTIONLED点灯(+16、-16NORMALLED点灯)、投入後82秒後 、 CAUTIONLED 2 個(+12V,+48V)POWERLED点灯確認。 2.電源二次線 (AC 1/3CN110) 外状態電
16、源投入、 42秒後電圧表示LED +12CAUTIONLED点灯(+16、-16、+48NORMALLED点灯)、投入後82秒後 、 CAUTIONLED 1 個(+12)POWERLED点灯確認。 確認実施後、各項目毎外挿入。 3-1-6 FAN STOP検出回路動作確認 FAN回転固定、電源投入、42秒後NORMALLED、 STOPLED(赤)点灯 確認。確認左右 2個 FAN個別行。 確認終了後、FAN固定。 POWEROPERATION MONITOR NORMAL CAUTION +16+12+48STOP THERMAL FAN SPEED AUTOHIGH HIGH -16 F
17、AN 緑色LED緑色LED 赤色LED 図 3)LED及周辺部品名称 PARTS LIST CONTENTS OVERALL ASSEMBLY. 2 SUB CHASSIS ASSEMBLY. 6 BOTTOM ASSEMBLY. 8 DC UNIT. 10 REAR ASSEMBLY. 11 ELECTRICAL PARTS. 1319 POWER SUPPLY UNIT. 19 WARNING Components having special characteristics are marked and must be replaced with parts having specifi
18、cation equal to those originally installed. Notes : DESTINATION ABBREVIATIONS The numbers “QTY” show quantities for each unit. The parts with “-” in “PART NO.” are not available as spare parts. This mark “ ” in the REMARKS column means these parts are interchangeable. The second letter of the shaded
19、 () part number is O, not zero. The second letter of the shaded () part number is I, not one. M:South African model O:Chinese model Q:South-east Asia model T :Taiwan model U :U.S.A. model V :General export model (110V) W:General export model (220V) N,X: General export model Y :Export model A :Austra
20、lian model B :British model C :Canadian model D :German model E :European model F :French model H :North European model I :Indonesian model J :Japanese model K :Korean model POWER SUPPLY 印部品、安全維持重要部品。交換場合、安全必指定部品 使用。 部品価格、変更。 QTY欄記数字、各当使用個数。 PART NO.“-”部品、用部品準備。 REMARKS欄 部品、併用部品。 網掛付PART NO. 2番目文字、。
21、 網掛付PART NO. 2番目文字、。 (総組立) (Ass y) (Ass y) (DC) (Ass y) (電気部品) (電源) (目次) PW5000 2 OVERALL ASSEMBLY Sub chassis section Front panel section 10 2030 30 50 7070 6060 100110 115 100 125125 300300 125125 130 170 160 170 180 180 280 290 290 170 210220 230 230240 260 270270 270 270270 Sub chassis assembly:
22、 (Assy) See page 6. Bottom assembly: See page 8. (Assy) (総組立) PW5000 3 Accessories 4045 45 45 80 80 90 9090 90 120 120 250 126126 126126 130 140 150 150 150 150 190 200310310200 200 200 200 320 280 290 290 Power cord Rear assembly: See page 11. (Assy) DC unit: See page 10. (DC) PW5000 4 : New Parts
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