Page 2
IMPORTANT NOTICE This manual has been provided for the use of authorized Yamaha Retailers and their service personnel. It has been assumed that basic ser- vice procedures inherent to the industry, and more specifically Yamaha Products, are already known and understood by the users, and have therefore not been restated.
PX10/PX8/PX5/PX3 PANEL LAYOUT(パネルレイアウト) • Front Panel (フロントパネル) q Power button q 電源ボタン w [POWER] indicator w [POWER]インジケーター e [ALERT] indicator e [ALERT]インジケーター r [USB] indicator r [USB]インジケーター t [CLIP/LIMIT] indicators t [CLIP/LIMIT]インジケーター y [SIGNAL] indicators y [SIGNAL]インジケーター u [PROTECT] indicators u [PROTECT]インジケーター...
PX10/PX8/PX5/PX3 JACK AND PLUG LIST(端子とプラグ一覧) • XLR jack ( XLR端子) • Binding post connector (バインディングポスト端子) XLR type 3-31 jack. (XLR型3-31タイプの端子です。 ) • Without plugs ( プラグなしの場合) Remove about 15 mm of insulation from the end of each The polarity is shown below (IEC60268).
PX10/PX8/PX5/PX3 CIRCUIT BOARD LAYOUT(ユニットレイアウト) • Top view (上から見た図) AC INLET (ACインレッ ト) AUDIO ACIN DC FAN DC FAN (DCファ ン) (DCファ ン) • Front view (前面から見た図)...
PX10/PX8/PX5/PX3 DISASSEMBLY PROCEDURE(分解手順) Caution: 注意事項 • Install the binding tie and the cord clamp in the same way • インシュロックタイ、 束線止めは、 取り外す前と同じように取り as they were before removal. 付けてください。 • Pay attention not to insert and install the FFC cable to the • FFCケーブルの表...
Page 12
OUT circuit board. (Fig. 2) 5-4 PSシートを外します。 ( 3 項参照) Remove the PS circuit board. (See procedure 3.) 5-5 PX10/PX8 のみ PX10/PX8 only [850]のプラスチックリベット 2 個を外して、 ダクト Remove the two (2) plastic rivets marked [850]. The duct AMPを外します。 ( 図4)...
Page 13
PX10/PX8/PX5/PX3 Set AUDIO circuit board with bending FFC guard. (FFCガー ド を曲げながらAUDIOシー ト を取り付けて く だ さ い。 ) [850] DUCT AMP (ダク トAMP) FFC GUARD (FFCガー ド) Fit the tabs of duct amp into the slots of sub chassis.
Page 16
PX10/PX8/PX5/PX3 FFC GUARD : PX5/PX3 onry (FFCガー ド : PX5/PX3のみ) [40] DC FAN (DCファ ン) DC FAN (DCファ ン) [40] HOLDER FFC (ホルダーFFC) FPN CS (with ENC circuit board) [880] Priority screw (2nd) (優先ネ ジ 2) [80] [90] [140] HEXAGONAL NUT Attach the holder FFC so as to match (六角ナッ...
Page 17
PX10/PX8/PX5/PX3 DC FAN 12. DCファン (所要時間 : 約9 分) (Time required: About 9 minutes) 12-1 Remove the eight (8) screws marked [40]. The DC fans 12-1 [40]のネジ 8 本を外して、 左右のDCファンを外しま can then be removed. (Fig. 8) す。 ( 図8) Remove the along with the FFC guard is the PX5 / PX3.
PX10/PX8/PX5/PX3 LSI PIN DESCRIPTION(LSI 端子機能表) AK4382AVT (X0661A00) DAC (Digital to Analog Converter) ............... 18 LPC1820FBD144,551 (YF570B00) MCU (Microcontroller Unit) ............19 NJW1194V(TE1) (X8355A00) 2-CHANNEL ELECTRONIC VOLUME ..........18 PCM1804DBR (X6872A01) ADC (Analog to Digital Converter) ............18 YDA177-VZ (YF978A00) DIGITAL POWER AMPLIFIER ..............20 YSS952-QZE2A (YE441A00) DSP(SPR-2) (Digital Signal Processor) ..........20...
Page 19
PX10/PX8/PX5/PX3 LPC1820FBD144, 551 (YF570B00) MCU (Microcontroller Unit) FPN (PN) : IC103 NAME FUNCTION NAME FUNCTION General purpose digital input/output pin I2S0_RX_MCLK S receive master clock GPIO2 ADC input channel 1 I2S0_RX_WS Receive Word Select ADC0_1 General purpose digital input/output pin...
Page 20
PX10/PX8/PX5/PX3 YSS952-QZE2A (YE441A00) DSP (SPR-2) (Digital Signal Processor) AUDIO: IC410 NAME FUNCTION NAME FUNCTION GPIO5 OPEN Leave this pin open GPIO4 General-purpose I/O pins DVSS GPIO3 IRQ_N Interrupt request output pin to the host controller DVDD18 Core power supply DVSS...
PX10/PX8/PX5/PX3 FPN (PN) Circuit Board to USB-CB306 to ENC-CB302 Component side (部品側) to AUDIO-CB402 N.C. N.C. not installed to VOL-W301 to PF-W401 to DISPLAY Pattern side (パターン側) 2NA-ZT09640...
PX10/PX8/PX5/PX3 OUT Circuit Board SPEAKERS A SPEAKERS B to AUDIO-W801A/B/C/D to AUDIO-W802A/B/C/D Component side (部品側) Pattern side (パターン側) 2NA-ZT09710...
PX10/PX8/PX5/PX3 PS Circuit Board to AUDIO-CB802 to AUDIO-CB806 to PF-CB401 to AUDIO-CB801 to ACIN-CB102 to ACIN-CB101 Component side (部品側) 2NA-ZT09780...
Page 29
PX10/PX8/PX5/PX3 PS Circuit Board Pattern side (パターン側) 2NA-ZT09780...
PX10/PX8/PX5/PX3 PF (PN) Circuit Board to PS-W203 to AUDIO-W401 to DC FAN to DC FAN to FPN-CB304 Component side (部品側) Pattern side (パターン側) USB (PN) Circuit Board to FPN-CB106 Component side (部品側) Pattern side (パターン側) 2NA-ZT09640...
PX10/PX8/PX5/PX3 INSPECTION Preparation Modes for Activation 1-1. Equipment 2-1. Service inspection mode • USB Memory This activation mode is to perform Service inspection. • Connect a FAT32 formatted USB2.0 memory Turn on while pushing the [MENU] key, the [A] key and the [B] key simultaneously.
Page 33
PX10/PX8/PX5/PX3 Service inspection 4-1. How to connect Refer to the “1-2. How to connect” (Page 32) of Inspection section. 4-2. How to activate Refer to the “2-1. Service inspection mode” (Page 32) of Inspection section. If powered on with service inspection mode successfully, during Power On sequence, all LEDs light up simultaneously for a few seconds.
Page 34
PX10/PX8/PX5/PX3 Inspection item 5-1. USB 5-2. Information 5-1-1. USB Bus, USB0-ID 5-2-1. Firmware version Contents The state of FAT32 fi le system currently recorded on Contents A version number inspects visual agreement. the USB memory is inspected. Advance preparation None. Advance preparation Confi...
Page 35
PX10/PX8/PX5/PX3 5-2-3. AUDIO-ID 5-2-6. PS-ID0 Variable (PCB PN Assembly only) Contents An AUDIO-ID inspects automatically that it is in This is not tested for service inspection of PX amplifi er. agreement with an expected value. Advance preparation None. 5-2-7. PS-ID1 Contents An PS-ID1(from PCB PS) inspects visually agreeing 〈...
Page 36
PX10/PX8/PX5/PX3 5-3. Statistics (Service only) 5-3-1. Browsing 5-3-2. Clear Contents The operating condition statistic of amplifier is Contents After exchanging the following parts, a related inspected visually. statistic is cleared manually. Refer to Statistics list. Exchanged parts Item to clear...
Page 37
PX10/PX8/PX5/PX3 5-4. DP200 (IC601) 5-4-1. I2C Bus 5-4-4. V-SENSE OUTVA,OUTVB Contents Via I2C Bus which is a communication path with a Contents When the output voltage of amplifier without load microcomputer, it inspects automatically using the is normal, it inspects automatically that the value register of DP200.
Page 38
PX10/PX8/PX5/PX3 5-4-9. /CLIP-B OFF 5-4-5. I-SENSE OUTIA,OUTIB Contents When the output current of amplifier with rated This is not tested for service inspection of PX amplifi er. load is normal, it inspects automatically that the value of the OUTIA or OUTIB register of DP200 is 5-4-10.
Page 39
PX10/PX8/PX5/PX3 5-5. Temperature 5-6. SPI Flash (IC104) 5-6-1. SPI Bus 5-5-1. AMP-A OTP_PS Flag PROT*_N Contents Read JEDEC ID (9Fh) command is written to the This is not tested for service inspection of PX amplifi er. SPI Flash device for data (IC104), and it inspects automatically that the following ID can be read.
Page 40
PX10/PX8/PX5/PX3 5-7. DSP (IC104) 5-7-1. I2C Bus 5-7-2. /DSP-IRQ Contents Via I2C Bus which is a communication path with a Contents The function to assert a /DSP-IRQ signal is microcomputer, it inspects automatically using the automatically inspected via the register of DSP.
Page 41
PX10/PX8/PX5/PX3 5-8. Analog 5-7-3. DSP-STATUS 5-8-1. /CFG1 (+14dBu) Contents The function to monitor a DSP-STATUS signal is Contents Measure the output characteristic of ChA/ChB on automatically inspected via the register of DSP. condition of the following. PX10 Advance preparation None. Input Sensitivity...
Page 42
PX10/PX8/PX5/PX3 5-8-2. CFG2 (+4dBu) 5-8-3. CFG3 (Minimum volume) Contents Measure the output characteristic of ChA/ChB on Contents Measure the output characteristic of ChA/ChB on condition of the following. condition of the following. PX10 PX10 Input Sensitivity +4dBu Input Sensitivity +14dBu...
Page 43
PX10/PX8/PX5/PX3 5-8-4. CFG4 (Boost mode) 5-8-5. /DSP-MUTE ON Contents Measure the output characteristic of ChA/ChB on Contents Measure the output level in the state where the condition of the following. /DSP-MUTE signal was asserted. PX10 Regarding criteria for measurement, refer to “2-2. inspection”...
Page 44
PX10/PX8/PX5/PX3 5-9. LCD 5-8-6. /DSP-MUTE OFF 5-9-1. Parallel Bus Contents Measure the output level in the state where the Contents A parallel bus is automatically inspected by writing, /DSP-MUTE signal was negated. reading, comparing with the LCDC display data RAM in the LCD module on the following two Regarding criteria for measurement, refer to “2-2.
Page 45
PX10/PX8/PX5/PX3 5-9-2. Panel 5-9-3. LCD-CONT (Contrast, Service Only) Contents Inspect the LCD panel visually. Contents Inspect the LCD contrast visually. The following 16 patterns are displayed every 400 Confirm the change of the minimum → maximum msec. → center luminance visually.
Page 46
PX10/PX8/PX5/PX3 5-10. FAN 5-9-4. LCD-BL (Backlight) 5-10-1. Turn (Final Assy only) Contents Inspect the LCD backlight visually. This is not tested for service inspection of PX amplifi er. Confirm the change of the minimum → maximum → center luminance visually.
Page 47
PX10/PX8/PX5/PX3 5-11. LED 5-10-3. Minimum speed 5-11-1. In order Contents In service inspection mode : It inspects rotating Contents Inspect visually as follows. visually 1) In order of the following, observe the LED lights up every 400msec. Advance preparation None. 〈 Service inspection screen 〉...
Page 48
PX10/PX8/PX5/PX3 5-12. Tact switch 5-12-1. In order Contents According to directions of a screen, a semiautomatic inspection is conducted by pushing fi ve switches in following order. It is failure, when the switch which should be pushed on the next is not displayed after pushing a switch, or...
Page 49
PX10/PX8/PX5/PX3 5-13. Rotary encoder 5-13-1. Rotate Left 5-13-2. Rotate Left Contents A semiautomatic inspection is conducted by turning Contents A semiautomatic inspection is conducted by turning a rotary encoder to the three lefts (counterclockwise a rotary encoder to the three rights (clockwise rotation).
Page 50
PX10/PX8/PX5/PX3 5-14. Rotary potentiometer 3) If SIGNAL LED of both A/B lights up, it means that voltage 5-14-1. VOL-ALT positive acquisition of this position was completed. This is not tested for service inspection of PX amplifi er. 5-14-2.VOL-ALT negative This is not tested for service inspection of PX amplifi er.
Page 51
PX10/PX8/PX5/PX3 When a [BACK] switch is pushed: When it returns to a maximum position: The fault location at the time of FAIL VR301, VR302 5-14-4.Confirm & Save 2 Contents In “5-14-3. Calibration 2”, it is inspected semi- automatically whether the voltage value read for every click is right.
Page 52
PX10/PX8/PX5/PX3 2) The index of the rotary potentiometer of both A/B is aligned 5-15 Power off with the minimum position as follows. Contents Inspect the shutdown of the power supply when It will end, if the both SIGNAL LED lights up.
PX10/PX8/PX5/PX3 MEASUREMENT Measurement condition 1-1. Environment 1-4. Caution for measurement environment Normal temperature: 5 to 40 degrees Connected chart when classD amplifi er (PX amplifi er) is Normal humidity: 30 to 90% measure Note) [the following measurement conditions are permitted if measurement result is in the inspection Insert AUX-0025 between classD amplifi...
Page 54
PX10/PX8/PX5/PX3 Therefore, the connection method with the interchangeability Flow of signal and output method of PX amplifi er that can correspond to any amplifier output method is preferable. The above-mentioned connection method can be compatible for the amplifier output with the single end output and the bridge output, and apply any audio analyzer.
Page 55
② THD=0.1% or less. When the sine wave of 1kHz is input to the input terminal, and the following table outputs are obtained, total harmonics distortion is measured. ① PX10 500W 38.3dBu ② PX10 10W 21.3dBu PX8 400W 37.3dBu PX8 10W 21.3dBu PX5 250W 35.3dBu...
Page 56
PX10/PX8/PX5/PX3 2-2-5. DSP-MUTE noise level Measurement condition Criteria All channel Select “Analog > CFG1 ( +14dBu ) ” with Service inspection mode. PX10 -52dBu or less Measured mode / 8Ω MODE -53dBu or less -54dBu or less The signal of -10dBu is input to input terminal.
Page 57
PX10/PX8/PX5/PX3 2-2-8. DP200 V-SENSE,I-SENSE Calibration Measurement condition Criteria Select “Analog > CFG1 ( +14dBu ) ” with Service inspection mode. The test program judge ‘PASS’ or ‘FAIL’ automatically. Measured mode / 8Ω MODE ※ When the calibration is completed successfully, it is outputted as PASS.
Page 58
PX10/PX8/PX5/PX3 2-2-12. Maximum Output ( STEREO Mode ) ( 8Ω Mode/1 channel drive ) Measurement condition Criteria All channel Select “Analog > CFG1 ( +14dBu ) ” with Service inspection mode. PX10 More than 253Vp-p Measured mode / 8Ω MODE...
Page 59
PX10/PX8/PX5/PX3 Setups at the time of maximum output measurement This item shall be tested with each measurement condition load resistances for each output terminals. The burst signal described in the following fi gure is applied to each input terminals.
PX10/PX8/PX5/PX3 UPDATAING FIRMWARE Preparation 1-1. Equipment 1-4. Attention You must not turn off the power supply of PX amplifier • USB Memory (FAT32 or FAT16 format) until update is completed. When you turn on the power supply of PX amplifier on ※ Copy the fi rmware fi le ( PX̲PROG.BIN) to the ...
PX10/PX8/PX5/PX3 DEVICE BACKUP (デバイス バックアップ) 1. Insert a USB Memory in a PX's USB port. 1. USBメモリーをパネル上のUSBポートに差します。 2. If the PX amplifier is Basic mode, switch 2. ベーシックモードの場合は、 アドバンストモードに Advanced mode. 切り替えます。 2-1. Press the [MENU] key to enter the MENU ...
Page 91
Saves all the setting data in the device to a USB 本体内のすべての設定データをUSBメモリーに memory. 保存します。 ② RESTORE FROM USB ② RESTORE FROM USB Restores setting data stored in a USB memory. USBメモリーに保存した設定データを読み込み ます。 NOTE 注意 The PX10/PX8 cannot recall settings stored on the PX5/PX3のパワーブーストモードで保存し PX5/PX3 in the Power Boost mode. た設定をPX10/PX8で呼び出すことはできま せん。...
PX10/PX8/PX5/PX3 INITIALIZING THE PX AMPLIFIER (PXアンプの初期化) Backup the user data before the device 初期化をおこなう前にユーザーデータのバッ ク is initialized. アップをおこなってく ださい。 (Refer to DEVICE BACKUP section (Page (デバイス バッ クアップ項目 (90ページ) 参照。 ) 90).) There are three ways to initialize the PX amplifier.
Page 93
PX10/PX8/PX5/PX3 すべてのユーザーデータを初期化 To initialize all the user data ● ● 1. Turn on while pressing the [A] key. 1. [A]キーを押しながら電源を入れます。 2. Rotate the main knob to select “ALL” and press the 2. メイン ノブを回して 「ALL」 を選択し、 メイン ノブを押し main knob.
(*: channel name) speaker cables. Install an appropriate USB flash drive. Refer to Yamaha Pro USB:COMPATIBLE DEVICES NOT FOUND A USB flash drive has not been installed. Audio global website (http://www.yamahaproaudio.com/) for tested USB flash drive.
Page 102
POWER AMPLIFIER PARTS LIST CONTENTS(目次) OVERALL ASSEMBLY (総組立) ............2 FRONT PANEL ASSEMBLY (FパネルAss'y) ........8 ELECTRICAL PARTS (電気部品) ..........9-29 Notes : DESTINATION ABBREVIATIONS A : Australian model O : Chinese model B : British model P : Brazilian model C : Canadian model Q : South-east Asia model D : German model...
Page 104
PX10/PX8/PX5/PX3 (フロン ト シ ャーシAssʼy) 160 x2 80 x4 The hexagonal nut come with (六角ナッ トは、 の付属品です。 ) 110 x4 70aa 170 x2 (背面) The hexagonal nut and washer come with The hexagonal nut come with (六角ナッ ト と ワ ッ シ ャーは、 の付属品です。 )...
Page 132
PX10/PX8/PX5/PX3 Notation for Circuit Diagrams (回路図表記上の注意) 1. How to identify inter-sheet connectors (シー ト間コネ クタの読み方について) SYNC 001:Q10 Signal name This indicates the location of the counter inter-sheet connector. (The alphabet indicates horizontal direction and the number (信号名) indicates vertical direction) 対応するシート間のコネクタのあるロケーションを示します。...
Page 138
■WIRING (PX10/PX8/PX5/PX3) PX10/PX8/PX5/PX3 128 x 64 LCD UNIT CB105(36P) CB302 CB106 CB306 (4P) CB108(4P) CB304(6P) CB103(5P) (9P) (9P) CB303(40P) W301(5P) Power Switch W401(6P) CB403 CB402 (3P) (3P) W302C W302B CB405(5P) CB401(7P) DC FAN DC FAN W302A (DCファン) (DCファン) AUDIO ACIN...
Page 139
■ACIN CIRCUIT DIAGRAM (PX10/PX8/PX5/PX3) PX10/PX8/PX5/PX3 * T a b l e 1 * T a b l e 1 C B 1 0 2 T P 1 1 4 T P 1 0 9 V H I J 1 0 1...
Page 140
+ 5 A ■AUDIO 001 CIRCUIT DIAGRAM (PX10/PX8/PX5/PX3) PX10/PX8/PX5/PX3 A D C A v = - 6 d B + 5 A F c = 8 4 k H z T P 4 6 0 R 4 4 8 R 4 5 2...
Page 141
1 R694~697,768 ■AUDIO 002 CIRCUIT DIAGRAM (PX10/PX8/PX5/PX3) Model GAIN R715,757 R752,764 C673 676 Q605 L601,603 L602,604 J601,602 R672,673 R772 C677,678 C682,683 C679 C680 PX10/PX8/PX5/PX3 R770,771,782 C l a s s - D A M P PX10 8.07dB...
Page 142
R821 824,882 885 R805,806 C847,848 ■AUDIO 003 CIRCUIT DIAGRAM (PX10/PX8/PX5/PX3) MODEL C838 841 Q804 807 R911,914 L801,803 L802,804 R906 909 R872 C842,843 C844 C845 PX10/PX8/PX5/PX3 PX10 390u/160V FDP2710 3.9k 3.9k 3300p 3300p 1000p O T P ( F )
Page 143
■OUT CIRCUIT DIAGRAM (PX10/PX8/PX5/PX3) PX10/PX8/PX5/PX3 J K 9 0 1 O U T A C a u t i o n SPEAKER A C 9 0 1 , C 9 0 2 , C 9 0 3 , C 9 0 4 : A r r a n g e n e a r t h e T E 9 0 3 .
Page 144
■FPN (PN) 001 CIRCUIT DIAGRAM (PX10/PX8/PX5/PX3) PX10/PX8/PX5/PX3 L C D - D 7 LCD-D7 002:C3 + 3 . 3 D C B 1 0 7 + 3 . 3 D B M 0 4 B - S R S S - T B T...
Page 145
■FPN 002, ENC, USB (PN) CIRCUIT DIAGRAM (PX10/PX8/PX5/PX3) PX10/PX8/PX5/PX3 t o L C D PROTECT A PROTECT B POWER C B 3 0 3 + 3 . 3 D W Y 7 8 1 5 0 ( R E D ) I f = 4 .
Page 146
■PF (PN) CIRCUIT DIAGRAM (PX10/PX8/PX5/PX3) PX10/PX8/PX5/PX3 F A N D R I V E R I C 4 0 2 + 1 5 F A N C B 4 0 1 C B 4 0 2 + 1 5 F A N...
Page 147
■PS CIRCUIT DIAGRAM (PX10/PX8/PX5/PX3) PX10/PX8/PX5/PX3 M U R F 1 5 6 0 G T P 2 8 2 T P 2 7 3 L 2 0 2 D 2 2 6 * T a b l e 1 B L 0 2 R N 2 - R 6 2 T 4...
Page 148
■PSW, VOL (SUB) CIRCUIT DIAGRAM (PX10/PX8/PX5/PX3) PX10/PX8/PX5/PX3 INVERTER I C 3 0 1 I C 3 0 1 T P 3 0 2 T P 3 0 1 T P 3 0 9 T C 7 4 V H C 1 4 F ( E L , K...