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Denon AVR-791 Service Manual

Denon AVR-791
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3
NOTE FOR SCHEMATIC DIAGRAM
WARNING:
Parts marked with this symbol
z
have critical characteristics. Use ONLY replacement parts recommended by the manufacture
r.
CAUTION:
Before returning the unit to the customer, make sure you make either (1) a leakage current check or (2) a line to chassis resistance check. If the
leakage current exceeds 0.5 milliamps, or if the resistance from chassis to either side of the power cord is less than 460 kohms, the unit is defective.
WARNING:
DO NOT return the unit to the customer until the problem is located and corrected.
NOTICE:
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM / M=1,000,000 OHM
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD EACH VOLTAGE AND CURRENT ARE MEASURED AT NO SIGNAL
INPUT CONDITION. CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR NOTICE.
NOTE FOR PARTS LIST
Parts for which "nsp" is indicated on this table cannot be supplied.
When ordering of part, clearly indicate "1" and "I" (i) to avoid mis-supplying.
Ordering part without stating its part number can not be supplied.
Not including General-purpose Carbon Chip Resistor in the P.W.Board parts list. (Refer to the Schematic Diagram for those parts.)
Parts marked with this symbol z have critical characteristics. Use ONLY replacement parts recommended by the manufacturer.
Not including General-purpose Carbon Film Resistor in the P.W.Board parts list. (Refer to the Schematic Diagram for those parts.)
Part indicated with the mark "" is not illustrated in the exploded view.
WARNING:
1.
2.
3.
4.
5.
6.
Resistors
RD : Carbon
RC : Composition
RS : Metal oxide film
RW: winding
RN : Metal film
RK : Metal mixture
P : Pulse-resistant type
NL : Low noise type
NB : Non-burning type
FR : Fuse-resistor
F : Lead wire forming
2B : 1/8 W
2E : 1/4 W
2H : 1/2 W
3A : 1 W
3D : 2 W
3F : 3 W
3H : 5 W
F : ±1%
G : ±2%
J : ±5%
K : ±10%
M : ±20%
Ex.: RN
Type
14K
Shape
and per-
formance
2E
Power
182
Resist-
ance
G
Allowable
error
FR
Others
* Resistance
1800ohm=1.8kohm1 8
2
Indicates number of zeros after effective number.
2-digit effective number.
1.2ohm1 R 2
2-digit effective number, decimal point indicated by R.
1-digit effective number.
: Units: ohm
Capacitors
CE : Aluminum foil
electrolytic
CA : Aluminium solid
electrolytic
CS : Tantalum electrolytic
CQ: Film
CK : Ceramic
CC : Ceramic
CP : Oil
CM: Mica
CF : Metallized
CH : Metallized
HS : High stability type
BP : Non-polar type
HR : Ripple-resistant type
DL : For change and discharge
HF : For assuring high requency
U : UL part
C : CSA part
W : UL-CSA part
F : Lead wire forming
0J : 6.3 V
1A : 10 V
1C : 16 V
1E : 25 V
1V : 35 V
1H : 50 V
2A : 100 V
2B : 125 V
2C : 160 V
2D : 200 V
2E : 250 V
2H : 500 V
2J : 630 V
F : ±1%
G : ±2%
J : ±5%
K : ±10%
M : ±20%
Z : ±80%
: - 20%
P : +100%
C : ±0.25pF
D : ±0.5pF
= : Others
Ex.: CE
Type
04W
Shape
and per-
formance
1H
Dielectric
strength
3R2
Capacity
M
Allowable
error
BP
Others
Units:μF.
2200μF2 2
2
Indicates number of zeros after effective number.
2-digit effective number.
Units:μF.
2.2μF2 R
2
2-digit effective number, decimal point indicated by R
1-digit effective number.
* Capacity (electrolyte only)
When the dielectric strength is indicated in AC,"AC" is included after the dieelectric strength value.
* Capacity (except electrolyte)
Units:pF
2200pF=0.0022μF2 2
2
Indicates number of zeros after efective number. (More than 2)
2-digit effective number.
Units:pF
220pF2 2
1
2-digit effective number.
Indicates number of zeros after effective numver. (0 or 1)
NOTE FOR PARTS LIST

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Denon AVR-791 Specifications

General IconGeneral
Number of Channels7.1
HDMI Inputs4
HDMI Outputs1
Audyssey TechnologiesAudyssey MultEQ, Audyssey Dynamic Volume, Audyssey Dynamic EQ
4K Pass-ThroughNo
Signal-To-Noise Ratio100 dB
HDMI SwitchingYes
Input Sensitivity200 mV
THD0.08%
Surround Sound EffectsYes
Digital Sound Processor (DSP)Yes
DSP Preset Qty7
Tuner BandsAM/FM
Preset Station Qty56
Auto Preset MemoryYes
HDMI Pass-ThroughYes
Frequency Response10Hz-100kHz
Power Output90 W per channel (8 ohms, 20Hz-20kHz, 0.08% THD)
Dolby TechnologiesDolby Digital Plus, Dolby TrueHD
DTS TechnologiesDTS, DTS-HD Master Audio, DTS-HD High Resolution Audio, DTS Neo:6
Response Bandwidth10 - 100000 Hz
Input Impedance47 kΩ
Audio D/A Converter24-bit / 192kHz
DSP PresetsRock Arena, Jazz Club, Mono Movie, Matrix, Virtual, Game
Tuning RangeAM: 520 - 1710 kHz, FM: 87.5 - 108 MHz
Connector TypeHDMI
Amplifier Output Details90W x 7 (8 ohms, 20Hz-20kHz, 0.08% THD)
Video ConversionYes (Composite to HDMI)

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