RX-V459, Yamaha
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AV RECEIVER/AV AMPLIFIER
RX-V459/HTR-5940/DSP-AX459
HTR-5935
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 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.
CONTENTS
TO SERVICE PERSONNEL ...................................... 2–3
FRONT PANELS ........................................................ 3–5
REAR PANELS .......................................................... 5–9
REMOTE CONTROL PANELS .................................... 10
SPECIFICATIONS / ࢀߟ༷ ................................ 11–12
INTERNAL VIEW ......................................................... 13
DISASSEMBLY PROCEDURESղखॱ ......... 14–15
SELF DIAGNOSIS FUNCTION (DIAG)
ࣗݾஅػೳʢμΠΞάʣ........................................ 16–37
AMP ADJUSTMENTΞϯϓ෦ௐ ........................... 38
DISPLAY DATA ..................................................... 39–40
IC DATA ................................................................. 41–50
PIN CONNECTION DIAGRAM .............................. 51–52
BLOCK DIAGRAMS .............................................. 53–55
PRINTED CIRCUIT BOARDS ................................ 56–68
SCHEMATIC DIAGRAMS ...................................... 69–75
REPLACEMENT PARTS LIST .............................. 77–95
REMOTE CONTROL .............................................. 96–97
ADVANCED SETUP .................................................... 98
REPLACEMENT PARTS LIST FOR CARBON RESISTORS .... 99
100998
2006 All rights reserved.
This manual is copyrighted by YAMAHA and may not be copied or
redistributed either in print or electronically without permission.
P.O.Box 1, Hamamatsu, Japan
'06.02
RX-V459/HTR-5940/DSP-AX459
HTR-5935
SELF DIAGNOSIS FUNCTION (DIAG)ʗࣗݾஅػೳʢμΠΞάʣ
No.
MAIN MENU
SUB MENU
9. XM Tone / 32k
10. ISO Tone / 32k
11. XM / DT Bus Power : OFF
1. DOCK : OK/NG
This unit has self diagnosis functions that are intended for
inspection, measurement and location of faulty point.
There are 23 DIAG menu items, each of which has sub-
menu items.
Listed in the table below are menu items and sub-menu
items.
Note that not all menu items listed will apply to the models
covered in this service manual.
ຊػʹɺݕࠪɺଌఆɺෆྑݸॴͷൃݟΛతʹͨࣗ͠ݾஅػ
ೳʢμΠΞάʣ͕͋Γ·͢ɻ
μΠΞάϝχϡʔݸ͋ΓɺͦͷͦΕͧΕʹαϒϝχϡʔ͕͋
Γ·͢ɻʢμΠΞάͷϝχϡʔૢ࡞ຊମͰߦ͍·͢ɻʣɹԼද
ϝχϡʔҰཡͰ͢ɻ
Լදͷશϝχϡʔ߲͕ɺ͜ͷαʔϏεϚχϡΞϧهࡌͷϞσϧ
ʹద༻͞ΕΔͱݶΓ·ͤΜɻ
13
iPod
16
IF STATUS
1. DSP STATUS (5Byte)
2. DECODE MODE (2Byte) (
Not applied to these models
/
͜ͷϞσϧʹద༻͞Ε·ͤΜ
)
3. DIR INFO (5Byte) (
Not applied to these models
/
͜ͷϞσϧʹద༻͞Ε·ͤΜ
)
4. Pc (2Byte) (
Not applied to these models
/
͜ͷϞσϧʹద༻͞Ε·ͤΜ
)
5. CHS 1 (5Byte) (
Not applied to these models
/
͜ͷϞσϧʹద༻͞Ε·ͤΜ
)
6. CHS 2 (1Byte) (
Not applied to these models
/
͜ͷϞσϧʹద༻͞Ε·ͤΜ
)
7. DEC INFO (5Byte) (
Not applied to these models
/
͜ͷϞσϧʹద༻͞Ε·ͤΜ
)
8. BSI 1 (5Byte) (
Not applied to these models
/
͜ͷϞσϧʹద༻͞Ε·ͤΜ
)
9. BSI 2 (5Byte) (
Not applied to these models
/
͜ͷϞσϧʹద༻͞Ε·ͤΜ
)
10. BSI 3 (5Byte) (
Not applied to these models
/
͜ͷϞσϧʹద༻͞Ε·ͤΜ
)
11. BSI 4 (5Byte) (
Not applied to these models
/
͜ͷϞσϧʹద༻͞Ε·ͤΜ
)
12. BSI 5 (5Byte) (
Not applied to these models
/
͜ͷϞσϧʹద༻͞Ε·ͤΜ
)
13. BSI 6 (5Byte) (
Not applied to these models
/
͜ͷϞσϧʹద༻͞Ε·ͤΜ
)
14. BSI 7 (5Byte) (
Not applied to these models
/
͜ͷϞσϧʹద༻͞Ε·ͤΜ
)
15. BSI 8 (1Byte) (
Not applied to these models
/
͜ͷϞσϧʹద༻͞Ε·ͤΜ
)
16. Mute Trigger (5Byte) (
Not applied to these models
/
͜ͷϞσϧʹద༻͞Ε·ͤΜ
)
17. Digital Info (5Byte) (
Not applied to these models
/
͜ͷϞσϧʹద༻͞Ε·ͤΜ
)
1. TI (DSP) BUS CHECK
2. RDS IC CHECK
1. L CUT OFF
2. H CUT OFF
1. PS L
2. PS H
3. DC L
4. DC H
5. TEMP
6. PL_J_8_L
7. PL_J_8_H
8. PL_U_8_L
9. PL_U_8_H
10. PL_U_N_L
11. PL_U_N_H
12. PL_G_8_L
13. PL_G_8_H
14. PL_G_N_L
15. PL_G_N_H
1. HISTORY 1
2. HISTORY 2
3. HISTORY 3
4. HISTORY 4
1. SW MODE : PCB/MODEL/FNC
2. MODEL : 759SE-5935
3. DEST. : J/UC/R/T/K/A/BGE/L
4. TUNER DEST : J/UC/ATKBG/RL
5. TUNER TYPE : NRM/RDS/XM
6. VIDEO FORMAT : NTSC/PAL
7. ZONE2 EXIST : EXIST/NOT
8. AAC EXIST : EXIST/NOT
9. TUNER EXIST : EXIST/NOT
10. ZONE2 AMP EXIST : EXIST/NOT
11. OSD EXIST : EXIST/NOT
12. YPAO EXIST : EXIST/NOT
1. MICROPROCESSOR VERSION
2. SUM ALL / PROGRAM
3. OPE / DSP / XM VERSION
4. PORT
5. TI (DSP) FLASH VERSION
6. TI (DSP) FLASH SUM
7. EEPROM SUM
1. TI (DSP) FLASH BOOT
No.
MAIN MENU
SUB MENU
1
BYPASS
1. ANALOG BYPASS
2. DSP BYPASS
1. RAM MARGIN
2. RAM FULL BIT
1. Pro Logic
1. FRONT : SMALL 0dB
2. CENTER : NONE
3. LFE/B : FRNT
4. Pres Mix : 5ch
5. Front GAIN 1
6. Front GAIN 2
7. SURR B Check
1. XCH_INPUT_6
2. XCH_INPUT_8
3. LIMIT SET
2
RAM THR
3
4
PRO LOGIC
SPEAKERS SET
17
DSP BUS CHECK
5
XCH-INPUT
18
SWFR CUT OFF
(
HTR-5935 model
)
PROTECTION SETTING
(
Not applied to these models
/
͜ͷϞ
σϧʹద༻͞Ε·ͤΜ
)
(
Not applied to these models
/
͜ͷϞσϧʹద༻͞Ε·ͤΜ
)
19
6
MIC CHECK (
Not applied to these
models
/
͜ͷϞσϧʹద༻͞Ε·ͤΜ
)
DISPLAY CHECK
1. MIC CHECK --dB
7
1. STRAIGHT (Initial display)
2. VFD DISP OFF
3. VFD DISP ALL
4. VFD DIMMER
5. CHECK PATTERN
1. TEST ALL
2. TEST FRNT L
3. TEST CENTER
4. TEST FRNT R
5. TEST SURR R
6. TEST SB R
8
MANUAL TEST
(
Not applied to these models
/
͜ͷϞσϧʹద༻͞Ε·ͤΜ
)
7. TEST SB L
8. TEST SURR L
9. TEST PRES L
20
PROTECTION HISTORY
(
Not applied to these models
/
͜ͷϞσϧʹద༻͞Ε·ͤΜ
)
10. TEST PRES R
(
Not applied to these models
/
͜ͷϞσϧʹద༻͞Ε·ͤΜ
)
9
FACTORY PRESET
11. TEST LFE
1. PRESET INHI (memory initialization inhibited)
2. PRESET RSRV (memory initialized)
1. PS1/PS2
2. DC/TH
3. IMP SW/POWER LIMITER DISP
4. PANEL KEY
1. I2C Read Check
2. DIGITAL THR CVBS
3. DIGITAL THR Y/C
4. ANALOG BYPASS
5. TEST PATTERN
6. LOOP BACK CVBS
7. LOOP BACK Y/C
1. 1k -1dB / 44.1k
2. 1k -61dB / 44.1k
3. Mute / 44.1k
4. XM Tone / 44.1k
5. ISO Tone / 44.1k
6. 1k -1dB / 32k
7. 1k -61dB / 32k
8. Mute / 32k
21
SOFT SW
10
AD DATA CHECK
11
VIDEO
(
Not applied to these models
/
͜ͷϞ
σϧʹద༻͞Ε·ͤΜ
)
22
ROM VER / SUM / PORT
12
XM STATUS
(U,C models)
23
TI (DSP) BOOT (
Not applied to
these models
/
͜ͷϞσϧʹద༻͞Ε·ͤΜ
)
16
RX-V459/HTR-5940/DSP-AX459
HTR-5935
• Starting DIAG
Press the “STANDBY/ON” key while simultaneously
pressing those two keys of the main unit as indicated in the
figure below.
˔μΠΞάͷىಈ
ຊମͷԼਤʹࣔ͢ΩʔΛಉ࣌ʹԡ͠ͳ͕Βʠ45"/%#:0/ʡ
ΩʔΛԡ͢ͱɺμΠΞά͕ىಈ͠·͢ɻ
Keys of main unit / ຊମΩʔ
Turn on the power while pressing these keys.
͜ΕΒͷΩʔΛಉ࣌ʹԡ͠ͳ͕ΒɺύϫʔΦϯ͢Δɻ
• Starting DIAG in the protection cancel
mode
If the protection function works and causes hindrance to
trouble diagnosis, cancel the protection function as
described below, and it will be possible to enter the DIAG
mode. (The protection functions other than the excess
current detect function will be disabled.)
˔ϓϩςΫγϣϯղআϞʔυͰͷىಈ
ϓϩςΫγϣϯ͕ಈ࡞͢Δ͜ͱʹΑΓɺނোՕॴͷஅʹࢧোΛ
͖ͨ͢Α͏ͳ߹ɺ࣍ͷํ๏ʹΑΓϓϩςΫγϣϯΛղআͨ͠
ঢ়ଶͰμΠΞάϞʔυʹೖΔ͜ͱ͕Ͱ͖·͢ɻʢաిྲྀݕग़Ҏ֎ͷ
ϓϩςΫγϣϯಈ࡞Λղআ͢Δʣ
্ਤͷΩʔΛಉ࣌ʹԡ͠ͳ͕Βʠ45"/%#:0/ʡΩʔΛԡ͠·
͢ɻ͜ͷͱ͖ɺ্ਤͷΩʔΛඵҎ্ԡ͠ଓ͚͍ͯͩ͘͞ɻ
͜ͷϞʔυͰຊମ'-ͷʠ4-&&1ʡηάϝϯτ͕໓͠ɺϓϩς
ΫγϣϯΛղআͨ͠ঢ়ଶͰͷμΠΞάϞʔυͰ͋Δ͜ͱΛΒͤ
·͢ɻ
Press the “STANDBY/ON” key while simultaneously
pressing 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 of the FL display of the
main unit flashes to indicate that the mode is DIAG mode
with the protection functions disabled.
CAUTION!
Using this product with the protection function disabled
may cause damage to itself. Use special care for this point
when using this mode.
ҙʂ
ϓϩςΫγϣϯΛղআͨ͠ঢ়ଶͰͷμΠΞάϞʔυɺةݥͳ
ঢ়ଶͰϓϩςΫγϣϯ͕࡞ಈ͠ͳ͍ͨΊɺಈ࡞ͤ͞Δͱɺػ
ثΛഁյ͢Δ͜ͱ͕͋Γ·͢ɻ͜ͷϞʔυΛ༻͢Δ߹े
ҙ͍ͯͩ͘͠͞ɻ
• Canceling DIAG
1
Before canceling DIAG, execute setting for FACTORY
PRESET of DIAG menu No.9 (Memory initialization
inhibited or Memory initialized).
* In order to keep the user memory stored, be sure to
select PRESET INHIBITED (Memory initialization
inhibited).
2
Turn off the power by pressing the “STANDBY/ON”
key of the main unit.
˔μΠΞάͷղআ
ᶃμΠΞάΛղআ͢ΔલʹɺμΠΞάϝχϡʔ/Pͷ
'"$503:13&4&5ʢϝϞϦʔͷॳظԽېࢭ·ͨϝϞ
ϦʔͷॳظԽʣͷઃఆΛ͠·͢ɻ
˞ ϢʔβʔϝϞϦʔΛอ͍࣋ͨ͠߹ɺඞͣ13&4&5
*/)*#*5&%ʢϝϞϦʔॳظԽېࢭʣΛબ͍ͯͩ͘͠͞ɻ
ᶄ ຊମͷʠ45"/%#:0/ʡΩʔΛԡ͠ɺύϫʔΦϑʹ͠·͢ɻ
17
RX-V459/HTR-5940/DSP-AX459
HTR-5935
• Display provided when DIAG started
On the FL display of the main unit, an opening message
(including the version and the protection history) appears
for a few seconds followed by the diagnostic menu display
(1. ANALOG BYPASS).
˔ μΠΞάىಈ࣌ͷදࣔ
ຊମ'-σΟεϓϨΠʹɺΦʔϓχϯάʢϓϩςΫγϣϯཤྺʗ
όʔδϣϯʣ͕දࣔ͞ΕɺඵޙʹμΠΞάϝχϡʔදࣔʢ
"/"-0(#:1"44ʣͱͳΓ·͢ɻ
When there is no history of protection function: ϓϩςΫγϣϯཤྺ͕ແ͍߹ɿ
Opening message / Φʔϓχϯάදࣔ
DIAG menu display / μΠΞάϝχϡʔදࣔ
When there is no protection history
ϓϩςΫγϣϯཤྺ͕ແ͍߹
After a few seconds
ඵޙ
NO
PROTECT
A
1.ANALOG
BYPAS
Version (1 alphabet)
όʔδϣϯʢӳจࣈʣ
When there is a history of protection function:
The FL display appears as shown below depending on the
type of the protection function.
ϓϩςΫγϣϯཤྺ͕͋Δ߹ɿ
ϓϩςΫγϣϯͷछྨʹΑͬͯԼهͷද͕ࣔݱΕ·͢ɻ
The protection function worked due to ex-
cessive current through the amplifier.
Causes could be a short at the speaker ter-
minal or a defect in the amplifier. The pro-
tection function activates immediately to
turn off the power, with no history display at
turn-on, if the amplifier is defective.
I
PROTECT
A
εϐʔΧʔΛγϣʔτͤͨ࣌͞ͳͲ͕ݪҼͰɺϓ
ϩςΫγϣϯ͕ಇ͍ͨ͜ͱΛࣔ͠·͢ɻ
The protection function worked due to a
defect or overload in the power supply. If
the power is turned on with the abnormality
unsolved, the protection function works in
about 1 second to turn off the power.
PS1
PRT:000
A
ిݯిѹʹΑΔݪҼͰɺϓϩςΫγϣϯ͕ಇ͍ͨ
͜ͱΛࣔ͠·͢ɻҟৗঢ়ଶͷ··ύϫʔΦϯ͢Δ
ͱɺඵޙʹϓϩςΫγϣϯֻ͕͔Γɺిݯ͕
Ε·͢ɻ
or
PS2
PRT:000
A
The protection function worked due to a DC
voltage appearing at the speaker terminal.
A cause could be a defect in the amplifier. If
the power is turned on with the abnormality
unsolved, the protection function works in
about 3 seconds to turn off the power.
DC
PRT:000
A
ΞϯϓͷނোͰεϐʔΧʔʹྲྀిѹֻ͕͔Δͳ
Ͳ͕ݪҼͰɺϓϩςΫγϣϯ͕ಇ͍ͨ͜ͱΛࣔ͠
·͢ɻҟৗঢ়ଶͷ··ύϫʔΦϯ͢Δͱɺඵ
ޙʹϓϩςΫγϣϯֻ͕͔Γɺిݯ͕Ε·͢ɻ
18
RX-V459/HTR-5940/DSP-AX459
HTR-5935
The protection function worked due to the
temperature limit being exceeded. Causes
could be poor ventilation or a defect related
to the thermal sensor. If the power is turned
on with the abnormality unsolved, the pro-
tection function works in about 1 second to
turn off the power.
TMP
PRT:000
A
Թ੍ݶΛӽ͑ͨݪҼͰɺϓϩςΫγϣϯ͕ಇ͍
ͨ͜ͱΛࣔ͠·͢ɻҟৗঢ়ଶͷ··ύϫʔΦϯ͢
ΔͱɺඵޙʹϓϩςΫγϣϯֻ͕͔Γɺిݯ
͕Ε·͢ɻ
For detection of each protection function (except I-PRO-
TECT) , refer to DIAG MENU No.10 AD DATA.
֤ϓϩΫςΫγϣϯͷݕग़ʹؔͯ͠ɺޙड़ͷμΠΞάϝχϡʔ
/P"%%"5"Λࢀর͍ͯͩ͘͠͞ɻ
History of protection function
When the protection function has worked, its history is
stored in memory with a backup. Even if no abnormality
is noted while servicing the unit, an abnormality which
has occurred previously can be defined as long as the
backup data has been stored.
The history of the protection function is cleared when
DIAG is cancelled by selecting PRESET RESERVED
(Memory initialized) of DIAG menu No.9 or when the
backup data is erased.
ϓϩςΫγϣϯͷཤྺ
ϓϩςΫγϣϯ͕ಇ͍ͨ߹ɺཤྺΛόοΫΞοϓͯ͠هԱ͠
͍ͯ·͢ɻαʔϏεͷͱ͖ʹҟৗ͕ೝΊΒΕͳͯ͘ɺόοΫ
Ξοϓ͕͍ͬͯΕɺ͓٬༷ͷͱ͜ΖͰى͖ͨҟৗΛ۠ผͰ
͖·͢ɻ
μΠΞάϝχϡʔ/PͰ13&4&53&4&37&%ʢϝϞϦʔ
ͷॳظԽʣΛબΜͰμΠΞάΛղআͨ͠߹ɺ·ͨόοΫ
Ξοϓ͕ফ͑ͨ߹ʹɺϓϩςΫγϣϯͷཤྺΫϦΞ͞Ε·
͢ɻ
• Display during menu operation
During the DIAG operation, the menu list described in the
section of the startup screen appears on the monitor
screen and the function at work is indicated on the FL indi-
cator. The contents displayed during the function opera-
tion are described later in the “Details of DIAG menu” sec-
tion.
˔ϝχϡʔಈ࡞தͷදࣔ
μΠΞάதɺϞχλʔը໘ʹىಈը໘ͷ߲Ͱઆ໌ͨ͠ϝχϡʔ
Ұཡ͕දࣔ͞Ε·͢ɻຊମͷ'-σΟεϓϨΠʹಈ࡞தͷػೳ͕
දࣔ͞Ε·͢ɻػೳಈ࡞தͷදࣔ༰ʹ͍ͭͯɺޙड़ͷػೳৄ
ࡉͰهड़͠·͢ɻ
• Operation procedure of DIAG menu and
SUB-MENU
There are 23 MENU items, each of which has some SUB-
MENU items.
˔μΠΞάϝχϡʔͱαϒϝχϡʔͷૢ࡞
μΠΞάʹ/Pʙͷϝχϡʔ͕͋ΓɺͦͷͦΕͧΕʹαϒ
ϝχϡʔ͕͋Γ·͢ɻ
μΠΞάϝχϡʔͷબ
ຊମΩʔͰͷૢ࡞ɿ130(3". ʢॱૹΓʣɺ ʢٯૹΓʣΩʔ
Ͱબ͠·͢ɻ
DIAG menu selection
Main unit: Select the menu using (Forward) and
(Reverse) keys of PROGRAM.
αϒϝχϡʔͷબ
ຊମΩʔͰͷૢ࡞ɿ13&4&556/*/( ʢॱૹΓʣɺ ʢٯૹ
ΓʣΩʔͰબ͠·͢ɻ
SUB-MENU selection
Main unit: Select the sub-menu using (Forward) and
(Reverse) keys of PRESET/TUNING.
Keys of main unit / ຊମΩʔ
DIAG menu selection
μΠΞάϝχϡʔͷબ
SUB-MENU selection
αϒϝχϡʔͷબ
Reverse
ٯૹΓ
Forward
ॱૹΓ
Reverse
ٯૹΓ
Forward
ॱૹΓ
Reverse
ٯૹΓ
Forward
ॱૹΓ
U, C models
R, T, K, A, G, E, L, J models
19
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