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AV RECEIVER

RX-V495/RX-V495RDS/

HTR-5140/HTR-5140RDS

TO SERVICE PERSONNEL ........................................... 1

REMOTE CONTROL PANELS ....................................... 1

FRONT PANELS ............................................................. 2

REAR PANELS ........................................................... 3~4

SPECIFICATIONS ....................................................... 5~6

INTERNAL VIEW ............................................................ 7

DISASSEMBLY PROCEDURES .................................... 7

SELF DIAGNOSIS FUNCTION ................................ 8~19

FACTORY PRESET ...................................................... 20

CONTENTS

AMP ADJUSTMENT ..................................................... 21

TUNER ADJUSTMENT ........................................... 22~25

IC DATA .................................................................. 26~35

DISPLAY  DATA ........................................................... 36

BLOCK DIAGRAM .................................................. 37~39

PRINTED CIRCUIT BOARD ................................... 40~57

SCHEMATIC DIAGRAM ......................................... 58~65

PARTS LIST ............................................................ 66~81

REMOTE CONTROL TRANSMITTER ......................... 82

SERVICE  MANUAL

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.

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 of 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.

Summary of Contents for RX-V495

Page 1: ...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 pr...

Page 2: ...n solder and your skin When soldering do not inhale solder fumes or expose eyes to solder flux vapor If you come in contact with solder or components located inside the enclosure of this product wash...

Page 3: ...2 RX V495 RX V495RDS HTR 5140 HTR 5140RDS FRONT PANELS RX V495 U C R T A and L models RX V495RDS B and G models HTR 5140 U C T and A models HTR 5140RDS G model...

Page 4: ...3 RX V495 RX V495RDS HTR 5140 HTR 5140RDS REAR PANELS RX V495 HTR 5140 U model RX V495 HTR 5140 C model RX V495 R model RX V495 HTR 5140 T model...

Page 5: ...4 RX V495 RX V495RDS HTR 5140 HTR 5140RDS RX V495 HTR 5140 A model RX V495RDS B model RX V495RDS HTR 5140RDS G model RX V495 L model...

Page 6: ...er G model only MAIN L R 1kHz 0 04 THD 8 65W 65W Power Band Width MAIN L R 0 1 THD 30W 8 10Hz to 50kHz Damping Factor SPEAKER A MAIN L R 20Hz to 20kHz 8 60 Input Sensitivity Input Impedance PHONO MM 2...

Page 7: ...ecifications subject to change without notice U U S A model A Australian model C Canadian model B British model R General model G European model T China model L Singapore model VIDEO SECTION Video Sig...

Page 8: ...E F G H I J K L D 1 POWER TRANSFORMER 2 P C B MAIN 3 3 P C B OPERATION 7 R T models only 4 P C B OPERATION 3 5 P C B MAIN 4 6 P C B MAIN 8 7 P C B OPERATION 6 8 P C B MAIN 2 9 P C B MAIN 1 0 P C B IN...

Page 9: ...T OFF 2 VFD DISP OFF 3 VFD DISP ALL 4 CHECKED PATTERN 5 RELEASE DATE 1 ALL 2 MAIN L 3 CENTER 4 MAIN R 5 REAR R 6 REAR L 7 LFE 1 INHIBIT Inhibit Memory Init 2 RESERVED Init Memory 1 2 KEY 3 TUNING SIGN...

Page 10: ...NCELLATION 1 STARTING UP THE FUNCTION AND THE DISPLAY After starting up menu No 1 is selected A How to start diagnostic program Using the front panel keys of the main unit hold down the INPUT MODE and...

Page 11: ...ter two seconds FL display at start up of diagnostic program When the diagnostic program has started the history 2 of the protection function 1 is displayed If the protection function has been activat...

Page 12: ...the submenu by using the PROGRAM keys The UP or key will increase the main or submenu number 2 Other functions available while diagnosis function is active Listed below are the other functions availa...

Page 13: ...without being processed This shows that the device is not operating DIR2 CODEC DA AK4526 YM3436 CODEC AD AC3Dav YSS908 AK4526 DECODER DA AK4320 1M SRAM DSP ANALOG IN L R L R FRONT R REAR L REAR R CEN...

Page 14: ...ll bits DIR2 CODEC DA AK4526 YM3436 CODEC AD AC3Dav YSS908 AK4526 DECODER DA AK4320 1M SRAM DSP ANALOG IN L R REAR L REAR R CENTER SUBWOOFER L R DIGITAL IN FRONT R FRONT L MAIN R MAIN L L R L R DIR2 C...

Page 15: ...dio or AC3 DOLBY DIGITAL 2 0 input the L R C and S signals are PRO LOGIC decoded and output With AC3 DOLBY DIGITAL other than 2 0 PRO LOGIC does not operate and AC3 DOLBY DIGITAL playback is executed...

Page 16: ...f the effect in the main level function 4 B MAIN C N Verification of the mixing circuit effect to the main channel 5 LFE B MAIN Verification of the bass mix gain 6 LFE B SWFR Verification of the LFE m...

Page 17: ...MANUAL TEST The noise generator built into the DSP outputs test noise from the channel specified by the submenu No 8 FACTORY PRESET The menu is used to reserve whether or not to set the back up data...

Page 18: ...el Turning the rotary encoder DC DC protection value normal value 1 13 Press the PROGRAM key PS Power voltage protection value Table 1 normal value 28 54 AD Value 0 11 23 36 51 67 84 TIME LEVEL TAPE M...

Page 19: ...5 00000000 10 DVD LD 8 00000000 10 DVD LD 9 00000000 bit7 1 during AC3 decode OK bit3 Demodulator muting without RF signal bit6 1 during DTS decode OK bit2 IEC958 digital format error bit5 1 during re...

Page 20: ...3 2 1 0 0 0 0 0 0 0 0 0 Always absent 0 Always absent 0 Tuner Mode V1 1 Tuner Mode V2 1 Always absent 0 Always absent 0 Model Type RDS 2 Model Type DSP R 2 No 11 CPU VERSION CHECK SUM PORT INFO EXIT...

Page 21: ...ISCO 40ms CD ROCK CONCERT 16ms PHONO CONCERT HALL 44ms SET MENU No SET MENU PRESET VALUE 8 CENTER DELAY 0 ms 7 DYNAMIC RANGE MAX 6 LFE LEVEL 0 dB 1 CENTER SPEAKER LARGE 2 REAR SPEAKER LARGE 3 MAIN SPE...

Page 22: ...nd reconfirm the voltage again Confirm that the voltage is 0 25mV 15 0mV after 60 minutes Note If R571 R577 R589 R595 and R583 have already been cut off and idling current does not flow r e c o n n e...

Page 23: ...lator TEST POINT Dummy antenna AM SG 50 AM dummy antenna AM loop antenna 50 10K AM ANT GND FM SG 50 E1 FM dummy antenna 60 10 45 E2 RECEIVER 75 E2 dB E1 dB 6 dB FM SG 75 E1 FM dummy antenna E2 RECEIVE...

Page 24: ...d TP2 DC 0V 100mV 1 Rough adjustment of monaural distortion Same as Step 1 98 1MHz A 4 T1 Antenna side core REC OUT L R Minimize the distortion 2 Fine adjustment of discriminator balance Same as Step...

Page 25: ...8dB or less 8 Verification of sensitivity FM ANT 75 88 1MHz 98 1MHz 106 1MHz MONO 1kHz Modulation off 88 1MHz A 6 98 1MHz A 4 106 1MHz A 7 ANT 75 With SSG output at L or R the signal leakage level at...

Page 26: ...be maximized 2 Verification of sensitivity AM ANT 630kHz 1080kHz 1440kHz 1kHz 30 modulation 630kHz B 1 1080kHz B 2 1440kHz B 3 AM ANT Auto reception should be available when the tuning key is moved U...

Page 27: ...S23 PC7 S22 PC6 S21 PC5 S20 PC4 VP 51 52 53 54 55 56 57 58 59 60 71 72 73 74 75 76 77 78 79 80 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33...

Page 28: ...detect PRD 1 24 P86 AN6 PRO2 I Protection 2 detect PRI 1 25 P85 AN5 PRO3 I Protection 3 detect PRV1 1 Pin Pin Port I O Function No Name 26 P70 INT0 PDT I Power down detect 27 P71 INT1 FMT O Full mute...

Page 29: ...44 PF4 10dB O 10 dB select L 10dB 78 S45 PF5 VCR O VCR select inhibit H inhibit 79 S46 PF6 Unconnected 80 S47 PF7 STANDBY SW I Standby on H ON 81 S48 PG0ROTARY A I Rotary encoder A 82 S49 PG1ROTARY B...

Page 30: ...18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 PA3 PA4 PA5 P70 INT0 P71 INT1 P72 INT2 P73 INT3 RES XT1 XT2 VSS1 CF1 CF2 VDD1 P80 AN0 P81 AN1...

Page 31: ...nected 35 P17 PWM NC I O Unconnected 36 SO2 STM TX Transmit data for CPU 37 SI2 MTS RX Receive data from CPU 38 SCK2 CKIF RXCK Clock from CPU 39 SI2P3 WCIF O Clock for CPU 40 PWM1 TRQ O Transmit reque...

Page 32: ...31 KM2 I Clock mode switching input 2 32 KM0 I Clock mode switching input 0 33 FS1 O Channel status sampling frequency display output 1 34 FS0 O Channel status sampling frequency display output 0 35 C...

Page 33: ...RAMA16 RAMA15 SDIB0 SDIB1 SDIB2 XI XO PVSS AVDD TEST TEST TEST OVFB TEST TEST TEST CPO AVSS 30 29 28 27 26 25 24 23 22 21 VDD SDOA2 SDOA1 SDOA0 RAMA14 RAMA13 RAMA12 RAMA11 RAMA10 VSS TOP VIEW SDBCK0...

Page 34: ...ly unconnected 25 RAMA14 O RAM address terminal 14 output terminal connected to external 1M SRAM address 26 RAMA13 O RAM address terminal 13 output terminal connected to external 1M SRAM address 27 RA...

Page 35: ...a 73 RAMD1 I O RAM data bus terminal 1 connected to external 1M SRAM data 74 RAMD2 I O RAM data bus terminal 2 connected to external 1M SRAM data 75 RAMD3 I O RAM data bus terminal 3 connected to exte...

Page 36: ...X L H Mode Data I O Power NOTE H High Level L Low level X Don t care Non selectable Non selectable Write mode Read mode High impedance High impedance Input Output High impedance On Standby On On On C...

Page 37: ...j j j j j P10 1k k 1k k k k k k k k k k k k P11 1m m 1m m m m m m m m m m m m P12 1n n 1n n n n n n n n n n n n P13 1p p 1p p p p p p p p p p p p P14 1r r 1r r r r r r r r r r r r P15 t t t t t t t t...

Page 38: ...ELAY DRIVE OVER CURRENT DETECT CENTER MAIN REAR VCR PHONO CD 1 3 7 5 IC104A B L R L R L R L R L R L R DVD LD TV DBS IN OUT VCR IN PLAY L R L R TAPE MD L R MAIN CENTER L R SUB WOOFER SURROUND EXTERNAL...

Page 39: ...12 1 24 1 22 12 22 1 11 12 W1 11 1 SAMPLE 0 1us 2V SAMPLE 50us 2V 2V V 2V div H 50nsec div Point 1 Pin22 of IC2 DC range 1 1 probe 0V V 2V div H 0 1 sec div Point 2 Pin12 of IC4 DC range 1 1 probe 0V...

Page 40: ...T A and L models Semiconductor Location R48 T3 J41 SW1 J42 R55 R57 R58 R60 U C R T A L USED CIRCUIT CHANGES BY MARKET NOT USED J H 42 43 B A C D E F G 1 2 3 4 5 6 PRINTED CIRCUIT BOARD Foil side B and...

Page 41: ...G3 Q12 H3 Q13 G3 Q14 D4 6 5 1 16 M5M51288BKJ 20LTEL 17 32 LC87F5164A 41 60 20 1 61 80 40 21 1 30 YSS908 F 51 50 80 81 31 100 1 11 AK4526 23 22 33 34 12 44 1 11 YM3436DK 23 22 33 34 12 44 1 12 AK4320 1...

Page 42: ...nly R T A L models only U C R T models only B G models only J A L models only J U C models only B G models only 5V RESET COM B A MG DATA SEL CLK RDT DEST RDO TCE TMUTE STM MTS CKIF MG VDN PRV2 SDT CEL...

Page 43: ...220V 2 3 6 7 110V 3 4 7 8 120V 4 5 8 1 MG S12 PRY NC TO MAIN 1 TO OPERATION 6 15 W815 W812 GY W813 BR SWITCHED 100W MAX TOTAL AC OUTLETS R T models only J U C models only U C models only G L models on...

Page 44: ...B E TO OPERATION 1 15 PRV1 RYV RYV TO MAIN 4 W815 15 MG S12 PRY NC TO OPERATION 3 CENTER REAR SURROUND SPEAKERS R L H 50 B A C D E F G PRINTED CIRCUIT BOARD Foil side 51 P C B MAIN 5 P C B MAIN 1 P C...

Page 45: ...P C B MAIN 6 P C B MAIN 3 P C B MAIN 4 P C B MAIN 7 P C B MAIN 8 H Semiconductor Location Ref No D501 D502 D503 D721 D722 D751 D762 D763 IC722 IC723 IC724 IC725 Location E4 D3 E3 G3 G3 A4 C3 C2 G3 G4...

Page 46: ...OUT REC IN OUT PHONO CD TAPE MD DVD LD TV DBS VCR SUB WOOFER L OUTPUT R L R 1 3 4 E RI LFEI RRI E E CO RLO 12A VUP VG LI E CI RLI LO E RO LFEO RRO 12 VDN 10 7 7 7 TO INPUT 4 DG DG VG 12A 12B 12 10 5D...

Page 47: ...VCR VSEL1 VSEL0 E AXL E AXR TO INPUT 1 W101 12 12 VIDEO SIGNAL IN TV DBS VIDEO VCR DVD LD MONITOR OUT OUT LA7956 9 1 DSIG 5D ISL1 DG ISL0 LDC 0 TO DSP 1 1 EXTERNAL DECODER INPUT MAIN L R CENTER SUB WO...

Page 48: ...PUT 59 All voltages are measured with a 10M V DC electric volt meter Components having special characteristics are marked and must be replaced with parts having specifications equal to those originall...

Page 49: ...2 113 PC4570HA Dual OP Amp A OUT A IN A IN V V B OUT B IN B IN IC401 403 PC4570C Dual OP Amp IC404 LB1641 Motor Driver REAR L FRONT L FRONT L REAR L FRONT L REAR L REAR L 11 4 0 0 11 2 0 0 0 0 0 0 0 0...

Page 50: ...0 24 1 20 2 0 11 7 29 0 0 0 6 11 5 0 42 0 13 5 12 9 0 6 0 6 41 3 0 0 0 1 1 41 8 41 3 0 0 0 6 11 5 0 42 0 0 6 0 6 41 3 0 0 0 1 0 41 8 41 3 0 6 11 5 0 42 0 0 6 41 2 0 0 0 1 0 41 7 41 2 0 6 11 5 0 42 0...

Page 51: ...6 27 6 27 6 27 7 4 0 4 0 0 4 7 11 5 4 2 4 7 2 4 4 7 4 6 0 0 0 4 7 5 5 6 0 13 1 6 6 12 4 0 13 1 7 3 0 5 5 4 7 30 0 23 0 4 7 4 7 0 13 1 4 7 0 0 4 7 4 7 0 4 7 0 4 7 0 0 0 0 4 7 4 7 4 7 4 7 4 7 0 0 6 0 6...

Page 52: ...0 0 0 2 0 2 0 0 2 4 2 4 0 0 0 4 7 2 3 2 4 2 4 0 2 4 2 4 0 0 3 1 4 9 0 0 4 7 2 4 2 4 0 0 2 4 1 5 0 3 1 0 3 1 4 9 4 9 4 9 2 3 0 9 4 6 0 1 0 3 1 0 0 0 0 0 0 0 0 0 0 0 0 2 4 2 4 0 0 0 0 4 7 0 4 9 0 0 0 0...

Page 53: ...having special characteristics are marked and must be replaced with parts having specifications equal to those originally installed Schematic diagram is subject to change without notice PIN CONNECTION...

Page 54: ...div H 50nsec div Point 1 Pin22 of IC2 DC range 1 1 probe 0V V 2V div H 0 1 sec div Point 2 Pin12 of IC4 DC range 1 1 probe 0V LA1266 LC72720N 2SC535 A B G 2SC1815 Y 1SS133 1SS176 HSS104 MTJ5 6B 1SS355...

Page 55: ...DISPLAY LED INFRD LED INFRARED MODUL RF MODULATOR RF PHOT CPL PHOTO COUPLER PHOT INTR PHOTO INTERRUPTER PHOT RFLCT PHOTO REFLECTOR PIN TEST PIN TEST POINT PLST RIVET PLASTIC RIVET R ARRAY RESISTOR ARR...

Page 56: ...121 UR847100 C EL 10uF 25V P C B DSP Schm Ref PART NO Description New Parts New Parts Schm Ref PART NO Description V3005700 P C B DSP CB1 VQ044200 CN BS PIN 6P CB3 VQ044500 CN BS PIN 11P CB6 VQ044600...

Page 57: ...BKJ 20LTEL IC6 XV951A00 IC AK4526A VQ IC7 XR361A00 IC AK4320 VM E1 IC8 XF291A00 IC uPC4570G2 IC9 XF291A00 IC uPC4570G2 IC10 XF291A00 IC uPC4570G2 IC11 XF291A00 IC uPC4570G2 IC13 XF291A00 IC uPC4570G2...

Page 58: ...00 C MYLAR 100pF 50V C155 UA952100 C MYLAR 100pF 50V C156 UR837100 C EL 10uF 16V C157 UR847100 C EL 10uF 25V C158 UR837100 C EL 10uF 16V C159 UR837100 C EL 10uF 16V C160 UR837100 C EL 10uF 16V C161 VJ...

Page 59: ...EL 100uF 16V C428 UR838100 C EL 100uF 16V C429 VG277000 C CE TUBLR 33pF 50V BG C430 UA952100 C MYLAR 100pF 50V C431 UR818100 C EL 100uF 6 3V C432 UA952100 C MYLAR 100pF 50V C433 UR818100 C EL 100uF 6...

Page 60: ...pF 50V UCRT C518 UA952220 C MYLAR 220pF 50V ABGL C519 UA952470 C MYLAR 470pF 50V C520 VQ245400 C PP 33pF 200V C521 UR838100 C EL 100uF 16V C522 UA953100 C MYLAR 1000pF 50V C523 VQ245400 C PP 33pF 200V...

Page 61: ...1 VM976300 DIODE ZENR HZS242TD 24V D722 VM976300 DIODE ZENR HZS242TD 24V D751 VN011400 DIODE BRG D5SB20 5A 200V D762 VS997800 DIODE 1T2 D763 VS997800 DIODE 1T2 HS501 V2692300 HEAT SINK BPUE36 30 IC722...

Page 62: ...33 1W R598 HV753470 R CAR FP 4 7 1 4W R599 HV755330 R CAR FP 330 1 4W R602 HV753470 R CAR FP 4 7 1 4W R603 HV753470 R CAR FP 4 7 1 4W R605 HV755330 R CAR FP 330 1 4W R607 HV753470 R CAR FP 4 7 1 4W R...

Page 63: ...LR 0 1uF 50V C824 VJ599100 C CE TUBLR 0 1uF 50V C825 VJ599100 C CE TUBLR 0 1uF 50V C826 UR848220 C EL 220uF 25V RT C826 UR848330 C EL 330uF 25V UCABGL C827 UR837470 C EL 47uF 16V C828 UA655120 C MYLAR...

Page 64: ...BG SW826 VG392900 SW TACT SKHVAA SW827 VG392900 SW TACT SKHVAA SW828 VG392900 SW TACT SKHVAA BG SW829 VG392900 SW TACT SKHVAA BG SW831 VA961800 VOLT SELCT ESE 37247 F RT T800 XC083A00 TRANS PWR UC T80...

Page 65: ...3uF 50V C36 UA952270 C MYLAR 270pF 50V ABGL C36 UA953100 C MYLAR 1000pF 50V UCRT C37 UA952270 C MYLAR 270pF 50V ABGL C37 UA953100 C MYLAR 1000pF 50V UCRT C38 UB012470 C CE M CHP 470pF 50V C39 VG28720...

Page 66: ...J BL 2 18 V2468400 ESCUTCHEON PJ TI 2 18 V2468500 ESCUTCHEON PJ GD 2 21 EP600830 BIND HEAD B TITE SCREW 3x8 FCRM3 BL 2 22 VN413300 BIND HEAD BONDING B T SCREW 3x8 MFZN2 BL 2 23 VT669300 PW HEAD B TITE...

Page 67: ...V0042500 LEG D60xH21 HTR 5140 T 121 V2774200 KNOB D40 GD 121 VV148800 KNOB D40 BL 121 VV148900 KNOB D40 TI 122 V2467600 KNOB ENC D30 BL 122 V2467700 KNOB ENC D30 TI 122 V2467800 KNOB ENC D30 GD 123 V...

Page 68: ...1 8 M 2 2 M 3 3 M 3 9 M 4 7 M 37 29 30 31 32 36 35 34 20 12 NC 25 P30 INTP0 P07 NC NC NC P06 P05 P04 P00 P01 P02 P52 11 3 2 1 44 43 42 41 40 NC 10 9 8 7 6 5 4 SCL SDA U2 R2 R1 6 5 VDD VDD VDD VDD J1 V...

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