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Yamaha HTR-5920 Service Manual

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DIGITAL HOME THEATER SYSTEM YHT-170
YHT-170 consists of the HTR-5920 and the NS-P170.
This service manual is for the HTR-5920.
For the NS-P170 service manual, please refer to the following publication number:
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:
IMPORTANT:
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:
IMPORTANT:
I CONTENTS
TO SERVICE PERSONNEL .......................................... 2
FRONT PANEL .............................................................. 2
REAR PANEL ................................................................ 3
REMOTE CONTROL PANEL ........................................ 3
SPECIFICATIONS ...................................................... 4-6
INTERNAL VIEW ........................................................... 6
DISASSEMBLY PROCEDURES ............................... 7-9
MAINTENANCE FLOW CHART ............................ 10-17
1 0 1 0 0 1
HTR-5920
SERVICE MANUAL
NS-P170
101002
IMPORTANT NOTICE
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.
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.
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).
Turn the unit OFF during disassembly and part replacement. Recheck all work before you apply power to the unit.
DISPLAY DATA ..................................................... 18-19
IC DATA ................................................................. 20-22
PIN CONNECTION DIAGRAMS ............................ 23-24
BLOCK DIAGRAM ....................................................... 25
PRINTED CIRCUIT BOARDS ................................ 26-30
SCHEMATIC DIAGRAMS ...................................... 31-34
REPLACEMENT PARTS LIST .............................. 35-37
REMOTE CONTROL .................................................... 38
2006
This manual is copyrighted by YAMAHA and may not be copied or
redistributed either in print or electronically without permission.
AV RECEIVER
All rights reserved.
P.O.Box 1, Hamamatsu, Japan
'06.03

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  Summary of Contents for Yamaha HTR-5920

  • Page 1: Table Of Contents

    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.
  • Page 2: To Service Personnel

    HTR-5920 I TO SERVICE PERSONNEL 1. Critical Components Information AC LEAKAGE WALL EQUIPMENT TESTER OR Components having special characteristics are marked s and OUTLET UNDER TEST EQUIVALENT must be replaced with parts having specifications equal to those originally installed. 2. Leakage Current Measurement (For 120V Models Only)
  • Page 3: Rear Panel

    HTR-5920 I REAR PANEL U, C models I REMOTE CONTROL PANEL...
  • Page 4: Specifications

    HTR-5920 I SPECIFICATIONS Standby Power Consumption I Audio Section U, C models ............. 1 W Minimum RMS Output Power Per Channel for FRONT, Dimensions (W x H x D) CENTER and SURROUND ..435 x 151 x 303 mm (17-1/8" x 5-15/16" x 11-15/16") 1 kHz, 0.1 % THD, 6 ohms ........
  • Page 5 HTR-5920 • SET MENU TABLE MAIN MENU SELECT MENU VALUE [INITIAL] SPEAKER LEVEL FRONT L CENTER FRONT R -10 dB to +10 dB, [0 dB], 1 dB step SURROUND R SURROUND L SUBWOOFER SPEAKER SET FRONT CENTER LRG, [SML], NONE...
  • Page 6: Internal View

    HTR-5920 • FIRMWARE VERSION (Microprocessor information) To display the firmware version, do the following procedure. 1. Press the "STANDBY/ON" key while simultaneously pressing those two keys of the main unit as indicated in the figure below. Keys of main unit Turn on the power while pressing these keys.
  • Page 7: Disassembly Procedures

    HTR-5920 I DISASSEMBLY PROCEDURES (Remove parts in the order as numbered.) Disconnect the power cable from the AC outlet. 2. Removal of Front Panel Unit 1. Removal of Top Cover a. Remove 6 screws (1) and 7 screws (2) (Fig. 1) a.
  • Page 8 HTR-5920 3. Removal of Rear Panel and Tuner a. Remove CN12. (Fig. 2) b. Remove 2 screws (5). (Fig. 3) Cord Stopper Rear Panel CN12 c. Remove Tuner. (Fig. 2) d. Remove 15 screws (6). (Fig. 3) e. Remove 2 screws (7). (Fig. 3) f.
  • Page 9 HTR-5920 4. Removal of INPUT and AMP (4) P.C.B.s a. Remove 1 screw (9) and 2 screws (0). (Fig. 5) b. Remove INPUT and AMP (4) P.C.B.s. (Fig. 5) INPUT P.C.B. AMP (4) P.C.B. Note: When assembling the AMP (4) P.C.B., be careful not to bend the pin of the connectors (CN13 and CN14).
  • Page 10: Maintenance Flow Chart

    HTR-5920 I MAINTENANCE FLOW CHART • FRONT P.C.B. Start Power on Is connection Check connection Is FL display of cable of cable turns on? correct? Are voltages Check power supply of BN82 (pin 1 of BN82 to 4) correct? Are waveforms...
  • Page 11 HTR-5920 Is volume Check Is power voltage work well? of each board power supply part correct? Check and replace Is implementation VR82 of VR82 correct? Are inputs of IC81 (pin 71 and 72) Check circuit pattern correct? Check and replace IC81...
  • Page 12 HTR-5920 Is work Is power voltage Check of remote control? power supply part of each board correct? Check Is power voltage power supply part of RC81 correct? Is waveform Check and replace of RC81 RC81 correct? Check and replace IC81...
  • Page 13 HTR-5920 • INPUT P.C.B. Start Power on Is Input Are power Check connections for selector of IC21 voltages of IC22 and BN14 and AMP board correct? IC23 correct? waveforms of Check connections for IC21 (pin 67 to 69) CN11 and FRONT board...
  • Page 14 HTR-5920 Start Power on Are input Is recognition Check connections for waveforms of IC32 of digital source external device (pin 57 and 59) correct? correct? power voltage Check power supply and oscillation of part and crystal IC32 correct? oscillation part...
  • Page 15 HTR-5920 Is output power voltage and Check power supply correct, when ground of IC32 part analog input correct? waveforms of Check and replace IC32 (pin 51 and 52) IC32 correct? Digital part is O.K.
  • Page 16 HTR-5920 • AMP P.C.B. Start Power on Check connections of Does protect Is connection of cable circuit work? all cable correct? Check voltages Check Protect circuit CN94 pin 2 : low and power supply part CN96 pin 5 : 1.5V...
  • Page 17 HTR-5920 Is output Check connections of audio correct? speaker cable AMP board is O.K.
  • Page 18: Display Data

    HTR-5920 I DISPLAY DATA G HNA-11SM66T PATTERN AREA G PIN CONNECTION Pin No. 6 7 8 9 10 11 12 13 14 15 16 17 18 Connection 1G 2G 3G 4G 5G 6G 7G 8G 9G 10G 11G NX NX Pin No.
  • Page 19 HTR-5920 G ANODE CONNECTION...
  • Page 20: Ic Data

    HTR-5920 I IC DATA IC81: TMP87PS71AF (FRONT P.C.B.) Microprocessor 54 53 52 51 50 49 48 47 46 45 44 43 42 41 (SIS) P97 P66 (G9) P65 (G10) (KEY0) P40 P64 (G11) (KEY1) P41 P63 (G12) (KEY2) P42 P62 (G13)
  • Page 21 HTR-5920 IC81: TMP87PS71AF (FRONT P.C.B.) Microprocessor PORT ASSIGNMENT ACTIVE REMARKS PORT NAME DESCRIPTION REMOTE_IN INPUT SERIAL DATA REMOTE DATA INPUT RDS_CLK INPUT SERIAL DATA RDS_DATA INPUT SERIAL DATA PLL_CE OUTPUT SERIAL DATA EXP/PLL_CLK OUTPUT SERIAL DATA PLL CLOCK & CD4094 CLOCK 1...
  • Page 22 HTR-5920 IC24: CD4094B (INPUT P.C.B.) 8-stage shift and store bus register PORT ASSIGNMENT SHIFT REGISTER PORT NAME DESCRIPTION STROBE STROBE INPUT CHIP ENABLE 1 FROM MICROPROCESSOR PIN No. 80 DATA DATA INPUT DATA INPUT 1 FROM MICROPROCESSOR PIN No. 6...
  • Page 23: Pin Connection Diagrams

    HTR-5920 I PIN CONNECTION DIAGRAMS • ICs 74HCU04 74LCX08 78L08 AK4589 BA4560RF BD3816K1 CD4094 CS493264 LA7952 MC7805C NJM2586 TMP87PS71 BVISTK402-120SE-HYBRID(ROHS) HVIKIA7812API HVIKIA7912PI 3: IN 1: OUT 2: COM • Diodes 1N4003 HVDMTZJ4.3BT 1N4403S HVDMTZJ4.7BT 1SS133 HVDMTZJ5.1BT Anode DQ10 HVDMTZJ33BT Anode...
  • Page 24 HTR-5920 • Transistors 2SA102M 2SA1271Y 2SB811Y 2SC2785 2SC3199 2SC2785Y 2SC3200 2SB811Y KRA102MT KTA1268GRT KTC3198Y KTD2058Y 2SC2785Y KRC102MT KTC2874BT KTD1304 KRC114MT KTA1267YT KTC3199YT...
  • Page 25: Block Diagram

    HTR-5920 I BLOCK DIAGRAM • See page 31, 32 → INPUT • See page 33 → SCHEMATIC DIAGRAM SCHEMATIC DIAGRAM RY91 PWR1 IC32 IC31 IC21 T901 2, 3 10, 11 6, 7 4, 5 12, 13 51, 52 8, 9...
  • Page 26: Printed Circuit Boards

    HTR-5920 I PRINTED CIRCUIT BOARDS INPUT P.C.B. (Side A) AUDIO / VIDEO COMPONENT VIDEO DIGITAL INPUT OUTPUT MONITOR OUT DTV/CBL DTV/CBL MONITOR OUT V-AUX DTV/CBL MD/CD-R COAXIAL OPTICAL WOOFER CD L/R OUT L/R IN L/R OUT L/R IN L/R To tuner •...
  • Page 27 HTR-5920 INPUT P.C.B. (Side B) • Semiconductor Location Ref no. Location IC18 IC21 IC24 IC25 IC26 IC27 IC28 IC31 IC32 IC36 IC37 IC51 Q143 Q301 Q302 Q504...
  • Page 28 HTR-5920 AMP (1) P.C.B. (Side A) SPEAKERS FRONT CENTER SURROUND WOOFER • Semiconductor Location AMP (3) (CN93) AMP (4) (BN94) Ref no. Location Ref no. Location D101 IC92 D102 IC93 D105 IC94 D106 IC95 D107 IC96 D108 IC97 D109 IC98...
  • Page 29 HTR-5920 AMP (2) P.C.B. (Side A) AMP (3) P.C.B. (Side A) AMP (4) P.C.B. (Side A) To power transformer To power transformer INPUT INPUT (BN14) (BN13) AMP (1) (BN93) AMP (1) (BN95) FRONT (1) (BN82) AMP (1) AMP (1) (CN94) (CN92) AMP (5) P.C.B.
  • Page 30 HTR-5920 FRONT (1) P.C.B. (Side A) INPUT (CN11) FRONT (2) (BN73-1) FRONT (3) (BN73-2) VOLUME PRESET / TUNING PRESET / TUNING SET MENU AMP (2) (CN96) MAN'L / AUTO FM AUTO / MAN'L (EFFECT) BASS / TREBLE • Semiconductor Location FRONT (2) P.C.B.
  • Page 31: Schematic Diagrams

    HTR-5920 SCHEMATIC DIAGRAMS INPUT 1/2 IC21: BD3816K1 7-channel volume IC for 7-channel OUTPUT R146 SUBWOOFER LOGIC AGND1 VINFR INA1 GOUTFL INA2 VINFL INB1 AGND10 INB2 TNF1 Input TREBLE select ING SW INC1 TNF2 INC2 BNFA1 Page 33 IND1 BASS BNFB1...
  • Page 32 HTR-5920 INPUT 2/2 IC24: CD4094B 8-stage shift and store bus register SERIAL SERIAL CLOCK SERIAL STAGES STROBE LATCH LATCH LATCH V DD OUTPUT ENABLE 3-STATE STATE STATE ALL INPUTS PROTECTED BY CMOS V DD V SS PROTECTION NETWORK STROBE DATA...
  • Page 33 HTR-5920 AMP (1) FRONT L WOOFER L Page 34 to FRONT (3)_CN96 CENTER SURROUND L Page 33 to AMP (4)_BN92 AMP (2) Page 31 to INPUT_BN14 Page 33 to AMP (1)_CN92 Page 31 POWER TRANSFORMER to INPUT_BN13 Page 34 G4...
  • Page 34 HTR-5920 FRONT Page 33 to AMP (1) _BN96 FRONT (3) PHONES FRONT (2) Page 33 G4 to AMP (2) _CN96 IC81 : TMP87PS71 Microprocessor I/O Ports I/O Ports Output Ports Power Supply Key scan VFT Power VFT drive circuit (automatic display)
  • Page 35: Replacement Parts List

    HTR-5920 I REPLACEMENT PARTS LIST P.C.B. INPUT P.C.B. AMP and P.C.B. FRONT • ELECTRICAL COMPONENT PARTS Ref. No. Part No. Description Markets Ref. No. Part No. Description Markets Note) When any part not included in the replacement parts list has failed, replace the P.C.B..
  • Page 36 HTR-5920 • OVERALL ASS’Y C4 (2) C4 (6) C4 (7) Note) The replacement battery cover C4 (1) is not available. C4 (5) C4 (4) C2 (2) C2 (1)
  • Page 37 HTR-5920 • OVERALL ASS’Y Ref. No. Part No. Description Remarks Markets AAX76670 FIP WINDOW CGU1A387Z AAX76810 FILTER CMZ1A108 AAX76820 VOLUME KNOB CBN1A207M7G5 AAX76690 FRONT PANEL ASS'Y CGW1A416ZA AAX76850 FOOT CKL1A089M7G5 AAX76760 CUSHION FOOT CHG1A329 AAX73640 RUBBER CHG1A113 AAX73910 P.C.B. SUPPORT...
  • Page 38: Remote Control

    HTR-5920 I REMOTE CONTROL • SCHEMATIC DIAGRAM • PANEL • KEY LAYOUT 44 45 53 54 • KEY CODE Label Code Label Code Label Code STANDBY 7A-1E 7A-E7 – – – POWER on 7A-1D 7A-E8 MUTE 7A-1C – – –...

This manual is also suitable for:

Yht-170