..........11 (分解手順) CIRCUIT BOARDS .............17 (シート基板図) INSPECTIONS ...................29 ......................38 検査 MEMORY INITIALIZATION ........47 (メモリーの初期化) GPI CIRCUIT EXAMPLE ............48 (GPI 回路例) PARTS LIST CIRCUIT DIAGRAM 011938 HAMAMATSU, JAPAN 200903 – オープンプライス Copyright (c) Yamaha Corporation. All rights reserved. YMW ´09.03...
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IMPORTANT NOTICE This manual has been provided for the use of authorized Yamaha Retailers and their service personnel. It has been assumed that basic service procedures inherent to the industry, and more specifically Yamaha Products, are already known and understood by the users, and have there- fore not been restated.
IMX644 ■ CIRCUIT BOARD LAYOUT (ユニットレイアウト) Rear view MONO CN ST CN Top view OUT CN GPIO CN FUSE CN MAIN USB CN POWER SUPPLY UNIT FRONT L FRONT R Front view...
IMX644 ■ DISASSEMBLY PROCEDURES (分解手順) Top Cover (Time required : About 1 min.) トップカバー(所要時間:約 1 分) 1-1. Remove the two (2) screws marked [37A], and remove the 1-1. [37A] のネジ 2 本を外し、 左側のハンドルを外します。 (図 1) left handle. (Fig. 1) 1-2.
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IMX644 FUSE Circuit Board FUSE シート (Time required: About 2 minutes.) (所要時間:約 2 分) 4-1. Remove the top cover. (See procedure 1) 4-1. トップカバーを外します。 (1 項参照) 4-2. Disconnect the connector assemblies from the FUSE circuit 4-2. FUSE シートに接続されている束線を抜きます。 ( 図 2)...
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IMX644 GPIO CN Circuit Board GPIO CN シート (Time required: About 3 minutes.) (所要時間:約 3 分) 7-1. Remove the top cover. (See procedure 1) 7-1. トップカバーを外します。 (1 項参照) 7-2. Disconnect the connector assembly from the GPIO CN 7-2. GPIO CN シートに接続されている束線を抜きます。...
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IMX644 Front Panel Assembly フロントパネル Ass'y (所要時間:約 3 分) (Time required: About 3 min.) 10-1. トップカバーを外します。 (1 項参照) 10-1. Remove the top cover. (See procedure 1) 10-2. USB CN シートに接続されている束線を抜きます。 10-2. Disconnect the connector assembly from the USB CN (図 4)...
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IMX644 FRONT L Circuit Board FRONT L シート (所要時間:約 5 分) (Time required: About 5 minutes.) 11-1. トップカバーを外します。 (1 項参照) 11-1. Remove the top cover. (See procedure 1) 11-2. フロントパネル Ass'y を外します。 (10 項参照) 11-2. Remove the front panel assembly. (See procedure 10) 11-3.
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IMX644 USB CN Circuit Board USB CN シート (所要時間:約 4 分) (Time required: About 4 minutes.) 13-1. トップカバーを外します。 (1 項参照) 13-1. Remove the top cover. (See procedure 1) 13-2. フロントパネル Ass'y を外します。 (10 項参照) 13-2. Remove the front panel assembly. (See procedure 10) 13-3.
IMX644 ■ CIRCUIT BOARDS (シート基板図) CONTENTS (目次) • FRONT L Circuit Board (LSB20177-001AH) ..... 18 • FRONT R Circuit Board (LSA10073-01A6H) ....20 • FUSE CN Circuit Board (LSA10073-01A8H) ....20 • GPIO CN Circuit Board (LSA10073-01A5H) ....20 • MAIN Circuit Board (LSB10072-001BH) ....22...
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IMX644 • FRONT L Circuit Board Component side (部品側) to MAIN–CN91 LOCK MONO INPUT Pattern side (パターン側) 2NA-WR77110...
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IMX644 • FRONT L Circuit Board Component side (部品側) to MAIN–CN92 STEREO INPUT OUTPUT to FRONT R–CN93 Pattern side (パターン側) 2NA-WR77110...
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IMX644 MEMORY POWER ON/OFF indicator to AC INLET to Power Switch (部品側) (部品側) 2NA-WR77080 2NA-WR77100 to FRONT L–CN93 to MAIN–CN71 (部品側) 2NA-WR77070...
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IMX644 The symbols “D2112, D2212, D2312, D2412, D2512 and D2612” are printed on the circuit board of the early products and 0 Ω resistors are installed there. 初期ロットの基板には、シンボル「D2112、D2212、D2312、D2412、D2512、D2612」が印刷されていて、そこに • MAIN Circuit Board は 0 Ω抵抗が実装されています。 Reduction: 17/20 Component side (部品側)...
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IMX644 Component side (部品側) to FRONT L–CN92 to FRONT L–CN91 to USB CN–CN81 to MONO CN–CN23 to ST CN–CN32 to ST CN–CN31 to MONO CN–CN22 to MONO CN–CN21 2NA-WR77020...
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IMX644 • MAIN Circuit Board Reduction: 17/20 Pattern side (パターン側) 2NA-WR77020...
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IMX644 Pattern side (パターン側) 2NA-WR77020...
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IMX644 to MAIN–CN22 to MAIN–CN21 to MAIN–CN23 (部品側) 2NA-WR77040 to MAIN–CN33 to MAIN–CN32 to MAIN–CN31 (部品側) 2NA-WR77050 (部品側) 2NA-WR77090 to MAIN–CN81...
: Less than 0.1 V/div (5) PC : The IMX644 Manager software is installed. The IMX644 Manager software can be downloaded from Yamaha’s professional audio website (URL is de- scribed below). http://www.yamahaproaudio.com/ (6) RS232C female-female cross cable x 1, USB cable x 1...
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IMX644 Figure 6: REC OUT A L/R Connection Diagram IMX644 REC OUT A (L/R) Audio Analyzer Oscilloscope 10 kΩ RCA Jack Figure 7: REC OUT B Connection Diagram IMX644 REC OUT B OPTICAL TOS-LINK Audio Analyzer etc. Optical Core 3. Test Conditions...
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IMX644 4. Inspection Method Item Specification Procedure [POWER] indicator • Confirm that the [POWER] indicator lights GREEN. Under the test conditions. Matrix indicators and MEMORY button’s • Confirm that the matrix indicators and MEMORY Under the test conditions. indicators button’s indicators light as shown in figure 8.
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IMX644 Item Specification Procedure Signal level and [SIGNAL/PEAK] indi- • Confirm that the output voltage at OUTPUT 1 L to • All [PAD] switches: ON cator of MONO INPUT 1 to 6 OUTPUT 4 is +4 dBu ±2 dB. •...
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IMX644 Item Specification Procedure 14 Noise level of MONO INPUT 1 to 6 • -42 dBu or less (IHF-A) • All [PAD] switches: OFF • IHF-A • Set volume controls of the channel to be checked to the maximum posi- tion.
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IMX644 Item Specification Procedure 18 Total harmonic distortion • 0.1 % or less • Input the 1 kHz, -1.8 dBu sine wave STEREO INPUT 1L/R to 4A L/R to the channel to be checked. → OUTPUT 1 L/R, 2 L/R •...
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• Press [LOCK] switch with a thin object (such as the tip of a pen). 25 Communication of RS-232C • Confirm that the [Status] indicator in the IMX644 • Connect this unit to the PC with Manager start screen changes from offline (gray) an RS-232C female-female cross to online (green).
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IMX644 5. Factory setting (1) Turn off all of the [PAD] switches. (2) Turn off all of the [+48V] switches. (3) While pressing the MEMORY buttons [A] and [D], turn on the power switch and keep pressing those two buttons.
NOTE • Initialization erases the password required to connect the ・ 初期化によって、本体に設定されている IMX644 Manager IMX644 Manager application to the IMX644 unit. After とオンラインにするためのパスワードも消去されます。 initialization it will be necessary to set a new password to bring 初期化後、初めて IMX644 Manager をオンラインにする the IMX644 online.
IMX644 ■ GPI CIRCUIT EXAMPLE (GPI 回路例) Example: Controlling the IMX644 from a switch 例: IMX644 をスイッチでコントロールする場合 IMX644 INPUT Example: Lighting the LED of an external device 例: IMX644 から外部機器の LED を点灯させる場合 from the IMX644 IMX644 Max. 30mA (最大 30mA)...
IMX644 DIGITAL INSTALLATION MIXER PARTS LIST ■ CONTENTS (目次) OVERALL ASSEMBLY (総組立) ............2 ELECTRICAL PARTS (電気部品) ............5 Notes: DESTINATION ABBREVIATIONS A : Australian model M : South African model B : British model O : Chinese model C : Canadian model...
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IMX644 ■ OVERALL ASSEMBLY (総組立) ➁ *1 As the front panel marked [ ] is not ➄ assembled with the screen marked [ when the front panel is required, order it together with the screen. ② のフロントパネルには、⑤ のスクリー ンは貼り付けられておりません。 フロントパネルが必要な場合は、スクリー...