background image

SERVICE MANUAL

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.

WARNING:

Failure to follow appropriate service and safety procedures when servicing this product  may result in personal
injury, destruction of expensive components, and failure of the  product to perform as specified. For these reasons,
we advise all YAMAHA product owners that any service required should be performed by an authorized YAMAHA
Retailer or the appointed service representative.

IMPORTANT:

The presentation or sale of this manual to any individual or firm does not constitute authorization,  certification  or
recognition  of  any  applicable  technical  capabilities,  or establish a principle-agent relationship of any form.

The data provided is believed to be accurate and applicable to the unit(s) indicated on the cover.  The research, engineering, and service
departments of YAMAHA are continually striving  to improve YAMAHA products. Modifications are, therefore, inevitable and
specifications are subject to change without notice or obligation to retrofit. Should any discrepancy appear to exist, please contact the
distributor's Service Division.

WARNING:

Static discharges can destroy expensive components. Discharge any static electricity your body may have
accumulated by grounding yourself to the ground buss in the unit (heavy gauge black wires connect to this buss).

IMPORTANT:

Turn the unit OFF during disassembly and part replacement. Recheck all work before you apply power to the unit.

IMPORTANT NOTICE

1 0 0 9 3 9

SERVICE MANUAL

RX-V757/DSP-AX757/DSP-AX757SE

RX-V657/HTR-5860

AV RECEIVER/AV AMPLIFIER

DISPLAY DATA  . . . . . . . . . . . . . . . . . . . . . . . . . . 51–52
IC DATA  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53–61
PIN CONNECTION DIAGRAM  . . . . . . . . . . . . . . . . . 62
BLOCK DIAGRAM  . . . . . . . . . . . . . . . . . . . . . . . . 63–64
PRINTED CIRCUIT BOARD  . . . . . . . . . . . . . . . . 65–84
SCHEMATIC DIAGRAM  . . . . . . . . . . . . . . . . . . . 85–95
PARTS LIST  . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97–133
REMOTE CONTROL RAV272, RAV273  . . . . 134–135
REMOTE CONTROL RAV252, RAV253  . . . . 136–137

■ 

CONTENTS

TO SERVICE PERSONNEL  . . . . . . . . . . . . . . . . . . 2–3
FRONT PANELS  . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–5
REMOTE CONTROL PANELS  . . . . . . . . . . . . . . . . . . 6
REAR PANELS  . . . . . . . . . . . . . . . . . . . . . . . . . . . 7–12
SPECIFICATIONS / 

参考仕様  . . . . . . . . . . . . . . . . .

13–17

INTERNAL VIEW  . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
DISASSEMBLY PROCEDURES / 

分解手順  . . . . .

19–27

SELF DIAGNOSIS FUNCTION (DIAG) /

自己診断機能(ダイアグ)

 . . . . . . . . . . . . . . . . . . . . 28–49

AMP ADJUSTMENT / 

アンプ部調整  . . . . . . . . . . . . . . .

50

RX-V757/DSP-AX757/DSP-AX757SE

RX-V657/HTR-5860

  

  ’05.03

Summary of Contents for RX-V757

Page 1: ...neering and service departments of YAMAHA are continually striving to improve YAMAHA products Modifications are therefore inevitable and specifications are subject to change without notice or obligati...

Page 2: ...6 Front GAIN 2 7 Zone 2 Amp ON 5 XCH INPUT 1 XCH INPUT_6 2 XCH INPUT_8 6 MIC CHECK 1 MIC CHK 7 VFD CHECK 1 VFD CHECK Initial display 2 VFD OFF OSD OFF 3 VFD ALL OSD 128 character pattern 4 VFD DIMMER...

Page 3: ...d to these models 2 PS_Hi 3 DC_Lo 4 DC_Hi 5 TEMP 6 PL_8_M_L 7 PL_8_M_H 8 PL_8_N_L 9 PL_8_N_H 10 PL_6_M_L 11 PL_6_M_H 12 PL_6_N_L 13 PL_6_N_H 17 PROTECTION HISTORY 1 history 1 2 history 2 3 history 3 4...

Page 4: ...d Press the STANDBY ON key while simultaneously press ing those two keys indicated in the figure above At this time keep pressing those two keys for 3 seconds or longer In this mode the SLEEP segment...

Page 5: ...isplay provided when DIAG started When the monitor is connected DIAGNOSTIC MENU appears on its screen as shown in the figure On the FL display of the main unit an opening message including the version...

Page 6: ...on works in about 1 second to turn off the power No 10 AD DATA 42 History of protection function When the protection function has worked its history is stored in memory with a backup Even if no abnorm...

Page 7: ...de In addition to the DIAG menu items functions as listed below are available Input selection Multi channel input Center Surround Surround Back Sub woofer level adjustment Muting Speaker relay A B Pow...

Page 8: ...S OUT 1KHz Input level Both ch 20 dBm Volume 6 5 dB SURROUND BACK L R INPUT DVD ANALOG FRONT L R 13 0 dBm CENTER SURROUND L R SUBWOOFER 50 Hz SPEAKERS OUT 1KHz Input level Both ch 20 dBm Volume 6 5 dB...

Page 9: ...LOG FRONT L R 13 0 dBm CENTER 13 0 dBm SURROUND L R 13 0 dBm SUBWOOFER 50 Hz 0 5 dBm SPEAKERS OUT 1KHz Input level Both ch 20 dBm Volume 6 5 dB SURROUND BACK L R 13 0 dBm INPUT DVD ANALOG 2 RAM MARGIN...

Page 10: ...PRO LOGIC Dolby PRO LOGIC is applied to input stereo source 3 PRO LOGIC FRONT L R 13 0 dBm CENTER 13 0 dBm SURROUND L R SUBWOOFER 50 Hz SPEAKERS OUT 1KHz Input level Each ch 20 dBm Both ch 20 dBm Vol...

Page 11: ...ixed into the channel specified by LFE BASS NONE This mode is used with no center speaker The center content is reduced by 3dB and distributed to FRONT L R 4 SPEAKERS SET F mix Presence Front mix 4 SP...

Page 12: ...menu 1 FRONT SML 0dB 2 CENTER NONE 3 LFE B FRNT 1kHz 4 LFE B FRNT 50Hz 5 Pres Mix 5ch 6 Front GAIN 1 7 Front GAIN 2 8 Zone 2 Amp ON XCH INPUT 6 ohms XCH INPUT_6 ohms XCH INPUT 8 ohms XCH INPUT_8 ohms...

Page 13: ...lay FL FL FL Segment conditions of the FL driver and the FL tube are checked by turning ON and OFF all segments Next the operation of the FL driver is checked by using the dimmer control Then a short...

Page 14: ...V657 HTR 5860 8 MANUAL TEST DSP THX 8 MANUAL TEST The test noise based THX is output to the channel specified by the sub menu from the DSP 8 TEST ALL 8 TEST FRNT L 8 TEST CENTER 8 TEST FRNT R 8 TEST S...

Page 15: ...ON Before setting to the PRESET RESERVED write down the existing preset memory content of the Tuner in a table as shown below This is be cause setting to the PRESET RESERVED will cause ALL user memory...

Page 16: ...0 K1 VOLUME 2 10 AD DATA CHECK With this sub menu used the key scanning A D value of the voltage at the abnormality detect protection port etc are displayed The A D conversion value is displayed in Th...

Page 17: ...ROL A B C D E 64 72 PRESET TUNING PRESET TUNING q 73 80 SPEAKERS B PRESET TUNING w 81 88 SPEAKERS A MEMORY 89 95 PURE DIRECT TUNING MODE 96 100 KEY OFF KEY OFF Display K0 K1 0 6 7 13 14 21 22 31 32 41...

Page 18: ...otation During signal processing the status before execution of this menu is maintained Numeric values in the figure example are for reference 4th byte 3rd byte 2nd byte 1st byte 5th byte DST DSP DST...

Page 19: ...tion bit 7 Digital mute bit 6 bit 5 6 1 7 1 processing bit 4 Analog mute bit 3 bit 2 PCM through bit 1 bit 0 dts analog mute Display Audio code 00 1 1 01 1 0 02 2 0 03 3 0 04 2 1 05 3 1 06 2 2 07 3 2...

Page 20: ...CHECK TI DA60Y ROM RAM NoEr 14 DSP BUS CHECK This menu is used to self diagnose whether or not the bus connection for the TI DA60Y and the external ROM RAM is made properly When no error is detected...

Page 21: ...every 10Hz and through by the STRAIGHT key 17 PROTECTION HISTORY 4 17 PROTECTION HISTORY Four protection histories are display 18 SOFT SWITCH 18 SOFT SWITCH P C B STRAIGHT P C B AC P C B P C B This m...

Page 22: ...selected TUNER DEST INATION J UC R ABG or RL can be se lected SW MODE Selectable when FNC has been se lected TUNER TYPE NRM RDS or XM can be selected SW MODE Selectable when FNC has been selected VID...

Page 23: ...meric value in the diagram is for reference VER I039 CHECK SUM E8F0 O 25 D 34 X A7 PORT 00000000 TI VER 37 TiSUM B97C3D55 EE SUM 0000 Software version of DSP DSP Checksum value of DSP DSP Checksum val...

Page 24: ...h R36 SURROUND BACK R ch R395 SURROUND BACK L ch R47 SURROUND L ch R48 SURROUND R ch R49 SURROUND BACK R ch R398 SURROUND BACK L ch Cut off Position for Adjusting MAIN 1 P C B 1 Immediately after the...

Page 25: ...V657 HTR 5860 RX V757 DSP AX757 DSP AX757SE RX V657 HTR 5860 DISPLAY DATA V801 17 BT 24GNK WE289300 GRID ASSIGNMENT PIN CONNECTION PATTERN AREA q 9 Note 1 F1 F2 Filament 2 NP No Pin 3 NX No Extend Pi...

Page 26: ...52 RX V757 DSP AX757 DSP AX757SE RX V657 HTR 5860 RX V757 DSP AX757 DSP AX757SE RX V657 HTR 5860 ANODE CONNECTION SEGMENT DESIGNATION...

Page 27: ...5 6 7 8 9 10 11 12 RXOUT RX0 RX1 RX2 RX3 DGND DVDD RX4 RX5 VI RX6 UI DVDD DGND 37 38 39 40 41 42 43 44 45 46 47 48 24 23 22 21 20 19 18 17 16 15 14 13 SDIN SLRCK SBCK RDATA RLRCK DVDD DGND RBCK RMCK...

Page 28: ...64fs 128fs S LR clock output pin fs s fs 2fs Serial audio data input pin Digital GND Digital power supply Oscillation amplifier output pin Crystal resonator connection output pin Crystal resonator co...

Page 29: ...using register Unconnected 7 GP0 7 EXT_INT7 IOZ General purpose I O0 port 7 Interrupt input polarity selectable individually by using register Unconnected 8 CLKS1 I McBSP1 external clock source 9 DVDD...

Page 30: ...ply 68 EA5 O Z For external memory Address 5 69 EA6 O Z For external memory Address 6 70 EA7 O Z For external memory Address 7 71 EA8 O Z For external memory Address 8 72 DVDD S 3 3V power supply 73 V...

Page 31: ...CVDD S 1 2V power supply 125 VSS GND Ground 126 DVDD S 3 3V power supply 127 ED4 IOZ For external memory Data 4 128 ED5 IOZ For external memory Data 5 129 ED3 IOZ For external memory Data 3 130 ED2 I...

Page 32: ...CIN I X tal input Oscillation 12 to 25MHz 179 OSCOUT O X tal output Unconnected 180 OSCVSS GND X tal GND internal connection Unconnected 181 OSCVDD S X tal 1 2V power supply internal connection Unconn...

Page 33: ...LMIT TRIG SDM SDD SCK BYTE CNVss MUTETI TIBUSY RESET Xout Vss Xin Vcc NMI INTTI INTDIR VSY CSDIR CSTI CSDAC ICDIR ICTI SPIRDY CEEEP CKZ2 DRXM DTXM DTEV TXDF XMPWR RXDF CKEV CLKF BSY Name 81 82 83 84 8...

Page 34: ...Conversion DATA VIDEO Conversion Clock HEAD PHONE Detect HEAD PHONE Mute Output MUTE Center MUTE SW For Flash Writing LO Zone 2 MUTE MUTE Front Surround Pre OUT Electronic Volum IC Enable Electronic...

Page 35: ...8 0 9 1 3 1 4 1 8 1 8 2 2 2 3 2 7 2 8 3 3 3 4 3 8 3 9 4 3 4 4 4 7 4 8 5 0 A D 5V 256 0 13 14 40 41 68 69 92 93 115 116 140 141 170 171 198 199 221 222 244 245 255 DEST 97pin J U C R T K A B GE L Pin...

Page 36: ...2 TUNER ZONE2 RX V757 U C A G RX V657 U C A B G E models TUNER DSP AX757SE model MULTI CH INPUT REC OUT 11 20 10 21 12 19 6 25 9 22 Switch NJU7312AM IC303 2 3 7 8 24 23 Switch NJU7312AM IC303 3 3 3 28...

Page 37: ...118 C116 C119 C117 B G B C132 C133 BL G BL 30V Q120 VP D312 12V IC302 12V IC303 12 G 12 C365 C366 9V IC712 9V 5V IC713 5V 5V IC304 5D 3 3V IC306 3 3D G 5V IC714 5V C367 C368 FL1 FL2 Power Detector Res...

Page 38: ...0 1 0 3 5 1 6 1 7 1 8 3 5 0 0 1 0 1 0 1 0 1 0 1 3 5 3 5 4 9 0 3 5 3 4 0 2 0 5 3 1 3 5 0 1 8 0 1 0 3 5 1 8 0 1 1 3 0 3 4 3 4 1 8 0 3 4 1 3 0 0 1 1 3 1 3 0 3 5 3 5 3 5 1 3 0 3 4 3 5 3 5 3 5 3 4 0 0 1 3...

Page 39: ...807 TO OPERATION 5 W807 IC15 AK4382AVT D A Convertter DE EMPHASIS CONTROL 8X INTERPOLATOR MODULATOR SCF SCF CLOCK DIVIDER 8X INTERPOLATOR MODULATOR AUDIO DATA INTERFACE P INTERFACE 12 15 16 13 14 6 7...

Page 40: ...IN2 6 7 8 IC314 NJM4556AL Dual OP Amp IN 1 2 IN 1 3 V CC 4 IN 2 5 IN 2 6 OUT 2 7 V CC 8 OUT 1 1 IC304 NJU7313AM Analog Function Switch 13 NC 18 NC 2 3 4 5 6 7 8 9 10 11 12 14 30 1 29 28 27 26 25 24 23...

Page 41: ...TO FUNCTION 1 CB309 Page 87 I 4 TO DSP CB3 Page 85 D 1 TO FUNCTION 1 CB306 Page 87 G 1 All voltages are measured with a 10M V DC electronic volt meter Components having special characteristics are mar...

Page 42: ...FUNCTION 1 CB306 Page 87 G 1 All voltages are measured with a 10M V DC electronic volt meter Components having special characteristics are marked Z and must be replaced with parts having specificatio...

Page 43: ...6 0 0 5 0 5 0 50 3 49 9 56 2 4 4 55 6 56 3 0 5 0 12 0 0 0 12 0 0 37 2 37 2 37 2 10 5 37 2 37 2 37 2 37 2 10 7 37 2 8 2 37 2 10 5 0 0 10 5 0 4 8 37 2 0 0 10 5 4 8 4 8 8 2 4 2 4 8 10 7 4 2 4 8 29 7 29...

Page 44: ...0 1 10 1 11 2 0 0 1 0 AC 17 5 AC 31 1 s8 TO POWER TRANSFORMER Page 90 F 7 TO MAIN 1 W8 Page 94 F 9 TO CONVERSION 1 CB706 Page 90 D 10 TO MAIN 1 W12 POWER 2 POWER 1 Page 90 A 5 TO MAIN 1 CB6 Page 90 A...

Page 45: ...CLOCK RECOVERY 1187 5Hz MEMORY CONTROL OSC DIVIDER VREF CLK 4 332MHz SYNC DETECT 2 VDDA VSSD VDDD RDS ID SYNC SYR VSSA MPX IN DO CL DI CE T1 T2 T3 T4 T5 T6 T7 X IN VREF FL OUT C IN X OUT 3 14 15 19 18...

Page 46: ...32 31 30 29 VIN1 NFB1 MUTE1 VIN2 NFB2 VCC1 VIN3 NFB3 N C N C VCC1 VOUT1 GND VOUT2 DR CTL2 VOUT3 MUTE4 VCC4 N C N C 6dB DR 6dB DR 6dB DR 11 12 13 14 15 16 17 18 26 25 24 23 22 21 20 19 VIN4 NFB4 MUTE2...

Page 47: ...AGC Det LPF AGC Clamp Ave Bias Det 1 225 IC833 NJM2068MD TE2 Dual OP Amp OUT1 IN1 VCC VCC OUT2 1 2 3 4 5 IN1 IN2 IN2 6 7 8 IC831 832 BD3841FS Function Switch F SW1 F SW1 INPUT FUNCTION 1 F SW2 INPUT F...

Page 48: ...SP AX757 DSP AX757SE RX V657 Page 93 H 7 Page 92 G 7 HTR 5860 Page 94 K 5 TO CONVERSION 2 W831 TO POWER TRANSFORMER no_use 0 01 50 10 16 0 1 16 47 16 47 16 47 16 1 BLM21P600SG 10K 10K 3 3K 3 3K NE5532...

Reviews: