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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 therefore not been restated.
1 PEAK, NOMINAL & SIGNAL indicators 2 LOCK indicator 3 POWER indicator 4 POWER switch Rear Panel DA CONVERTER WORD CLOCK OUTPUT MODEL DA824 (BAL) THRU ON OFF SLOT 5 COM port 6 WORD CLOCK THRU connector 7 WORD CLOCK 75...
DA824 DISASSEMBLY PROCEDURE Top Cover Remove the fourteen (14) screws marked [400]. The top cover can then be removed. (Fig. 1) Circuit Boards and Units Remove the top cover, each circuit board and unit can then be removed. Circuit Board and Unit Ref.
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DA824 AC Circuit Board Remove the top cover. (See procedure 1.) Remove the three (3) screws marked [60A] and the two (2) screws marked [110]. The AC circuit board can then be removed. (Fig. 4) The fuse is not a part of the AC circuit Board. When you...
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DA824 PN Circuit Board: Remove the four (4) screws marked [30]. The PN circuit board can then be removed. (Fig. 7) SW Circuit Board: Remove the two (2) screws marked [50]. The SW circuit board can then be removed. (Fig. 7) •...
DA824 LSI PIN DESCRIPTION YM3436DK (XG948E00) DIR2 (Digital Format Interface Receiver) MAIN: IC917, 918 NAME FUNCTION NAME FUNCTION DAUX Auxiliary input for audio data RSTN System reset input HDLT Asynchronous buffer operation flag Vdda VCO section power (+5V) DOUT Audio data output...
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DA824 HD6477042AF28 (XY721A00) CPU MAIN: IC909 NAME FUNCTION NAME FUNCTION PE14 Port E PE15 Port E Data bus Ground Ground Data bus Power supply Address bus Data bus Ground XTAL Crystal oscillator Mode control EXTAL Crystal oscillator Mode control Non-maskable interrupt request...
DA824 CIRCUIT BOARDS AC Circuit Board (H,W,B) (XY032C0) ······································································· 15 AC Circuit Board (J, U, V) (XY031C0) ······································································· 15 DA Circuit Board (XY035B0)······················································································ 23 DC Circuit Board (H,W,B) (XY032C0) ······································································· 17 DC Circuit Board (J, U, V) (XY031C0) ······································································· 16 JK Circuit Board (XY035B0) ······················································································...
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DA824 DC Circuit Board (J, U, C) Power transformer Power transformer to MYSL-CN052 to MAIN-CN905 to PN-CN963 to DA-CN001 Component side 3NA-V485500...
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DA824 DC Circuit Board (H,W,B) Power transformer Power transformer to MYSL-CN052 to MAIN-CN905 to PN-CN963 to DA-CN001 Component side 3NA-V485540...
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DA824 PN Circuit Board from DC-CN009 Component side 3NA-V485460...
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DA824 MAIN Circuit Board WORD CLOCK THRU to DA-CN003 from DC-CN010 to MYSL-CN054 to MYSL-CN053 3NA-V485480...
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DA824 MYSL Circuit Board from DC-CN008 from MAIN-CN902 from MAIN-CN901 Component side to PN-CN961 Component side MAIN,MYSL: 3NA-V485480...
DA824 INSPECTION Preparations · 0 dBu=0.775 Vrms · 0 dBV-1 Vrms=2.2 dBu · The output impedance of the oscillator connected is 150 ohms. · The input impedance of the oscilloscope and the level meter should be more than 100 k ohms.
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-18 dBu Jitter measurement · Connect AD824 word clock out and DA824 word clock in. · Insert MY8-AE card into the slot and connect to DSA1 via the D-sub-cannon converter box. · Set AD824 word clock settings to 48 kHz and 44.1 kHz.
DA824_DIAG> and the DA824 will enter the test program mode. The version of the test program will be shown as x.xx. To remove the test program mode, enter "reset". It will be displayed as followed and it will be the same as when the power is turned on.
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DA824 Automatic inspection Use the keyboard for the PC to enter "test" and execute program DA824_DIAG>test The following items will be inspected automatically. At the end, a list of items determined to be NG (no good) will be displayed on the screen.
DA824 Slot power supply peripheral connection check Only the NG systems from the test results will be shown on the screen. [5] WC BNC Displayed on the screen when the results of the word clock IN terminal/ JK901 and CPU connection are NG.
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1. Connection Click the [Browse] switch and the following window will Connect the PC and DA824 COM terminals by Dsub 9 pin open. Designate the files to be loaded to the DA824 and click serial cross cables. the [Open] switch.
DA CONVERTER PARTS LIST CONTENTS OVERALL ASSEMBLY······························································································································ 2 FRONT PANEL ASSEMBLY ····················································································································· 4 REAR PANEL ASSEMBLY ······················································································································· 5 DC ASSEMBLY ········································································································································· 6 ELECTRICAL PARTS ························································································································· 7~21 Notes: DESTINATION ABBREVIATIONS Australian model M: South African model British model Chinese model Canadian model South-east Asia model German model Taiwan model...
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DA824 PART NO. DESCRIPTION REMARKS REF NO. RANK XW029A00 AK4393-VF-E2 XJ598A00 NJM78L05UA REGULATOR +5V XJ598A00 NJM78L05UA REGULATOR +5V IC101 XJ553A00 NJM2068MD-T1 OP AMP IC102 XJ553A00 NJM2068MD-T1 OP AMP IC103 XP844A00 NJM4556AL OP AMP IC201 XJ553A00 NJM2068MD-T1 OP AMP IC202 XJ553A00...
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DA824 PART NO. DESCRIPTION REMARKS REF NO. RANK R120 VC328800 Metal Film Resistor 10.0K 1/4 F R121 VC329500 Metal Film Resistor 20.0K 1/4 F R122 VC329500 Metal Film Resistor 20.0K 1/4 F R123 VC329400 Metal Film Resistor 18.0K 1/4 F...
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DA824 PART NO. DESCRIPTION REMARKS REF NO. RANK R330 RD257100 Carbon Resistor (chip) 10.0K 0.1 J R401 VC327600 Metal Film Resistor 3.3K 1/4 F R402 VC327600 Metal Film Resistor 3.3K 1/4 F R403 VC329200 Metal Film Resistor 15.0K 1/4 F...
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DA824 PART NO. DESCRIPTION REMARKS REF NO. RANK R610 VC328500 Metal Film Resistor 7.5K 1/4 F R611 VC330500 Metal Film Resistor 51.0K 1/4 F R612 VC329600 Metal Film Resistor 22.0K 1/4 F R613 VC327100 Metal Film Resistor 2.0K 1/4 F...
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DA824 PART NO. DESCRIPTION REMARKS REF NO. RANK R820 VC328800 Metal Film Resistor 10.0K 1/4 F R821 VC329500 Metal Film Resistor 20.0K 1/4 F R822 VC329500 Metal Film Resistor 20.0K 1/4 F R823 VC329400 Metal Film Resistor 18.0K 1/4 F...
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DA824 PART NO. DESCRIPTION REMARKS REF NO. RANK R303 VC331200 Metal Film Resistor 100K 1/4 F R304 VC328700 Metal Film Resistor 9.1K 1/4 F R305 VC331200 Metal Film Resistor 100K 1/4 F R306 VC330300 Metal Film Resistor 43.0K 1/4 F...
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DA824 PART NO. DESCRIPTION REMARKS REF NO. RANK -716 HF757470 Carbon Resistor 47.0K 1/4 J R717 HF755390 Carbon Resistor 390.0 1/4 J -719 HF755390 Carbon Resistor 390.0 1/4 J R801 VC330800 Metal Film Resistor 68.0K 1/4 F R802 VB070300 Metal Film Resistor 200.0K 1/5 F...
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DA824 PART NO. DESCRIPTION REMARKS REF NO. RANK KB003560 Fuse 1.60A JU J,U,V KB003060 Fuse 1.60A S H,W,B KB003570 Fuse 2.00A JU J,U,V KB003070 Fuse 2.00A S H,W,B KB003620 Fuse 4.00A JU J,U,V KB003100 Fuse 4.00A S H,W,B New Parts...
DA824 DA824 OVERALL CIRCUIT DIAGRAM 2/3 (DA, JK) OP AMP OP AMP OUTPUT (BAL) TRANSCEIVER OP AMP to MAIN-CN904 OP AMP OP AMP OUTPUT (BAL) REGULATOR +5V OP AMP OP AMP OUTPUT OUTPUT (BAL) (BAL) OP AMP OUTPUT (BAL) OP AMP...
DA824 DA824 OVERALL CIRCUIT DIAGRAM 3/3 (PN, AC, DC, SW) OP AMP OP AMP OP AMP OP AMP to DA-CN002 to MAIN-CN906 KEC-92532 to DA-CN001 AD ONLY REGULATOR +15V POWER AD ONLY KEC-92535 REGULATOR –15V REGULATOR +15V AD ONLY AD ONLY...