Read Harman Kardon AVR 134 Service Manual online
SAFETY PRECAUTIONS
WARNING
Before servicing this unit, familiarize yourself with the following precautions:
1. Many electrical and mechanical parts in this
chassis have special safety characteristics that
often pass unnoticed and the protection
afforded by them cannot necessarily be
obtained by using replacement components
rated for higher voltage, wattage, etc.
Replacement parts that have these special
safety characteristics are identified in this
manual and its supplements: electrical
components having such features are identified
by
in the schematic diagram and the parts
list.
Before replacing any of these components, read
the parts list in this manual carefully. The use of
substitute replacement parts that do not have
the same safety characteristics as specified in
the parts list may create shock, fire, or other
hazards.
2. Before returning the set to the customer,
always do an AC leakage current check on the
exposed metal parts of the cabinet, such as
terminals, screw heads, and metal overlays, to
be sure the set is safe to operate danger of
electrical shock. Plug the AC line cord directly
into a 120 V AC outlet(USA Version) or 230 V
AC outlet(EU Version). (Do not use a line
isolation transformer during this check.) Be
sure your AC voltmeter has a sensitivity of
5000 Ω per volt or greater. Then connect a
1500 Ω 10 watt resistor, paralleled by a 0.15
µF 150 V AC capacitor, between a known good
earth ground(such as a water pipe, or conduit)
and the exposed metallic parts, one at a time.
Measure the AC voltage across the combination
of a 1500 Ω resistor and a 0.15 µF capacitor.
Reverse the AC plug at the AC outlet and
repeat AC voltage measurements for each
exposed metalic part. Voltage measured must
not exceed 0.75 V RMS. This corresponds to
0.2 mA AC. Any value exceeding this limit
constitutes a potential shock hazard and must
be corrected immediately.
2
Measuring methods are based on IHF and IEC standard 268-3
Measurements conditions,unless otherwise noted :
Output resistive load = (6) ohms / Both channel driven
Tone Direct ON , Other SW's : OFF
Power figures should be kept minimum 10min. between 15 and 35˚c
Filter : IHF-A filter,
R/O = Rated Output
Power supply : 240 V / 50 Hz
1. FRONT AMP SECTION
*SPKR LEVEL : ALL 0dB *SPK SIZE:LLLY
*6CH INPUT *TONE OFF
*6CH INPUT *TONE OFF
INPUT
FREQ.
REMARK
UNIT
NOMINAL
LIMIT
1
INPUT SENSITIVITY
6CH INPUT
1kHz
R/O
mV
200±30
200±50
TOTAL HARMONIC DISTORTION
6CH INPUT
20Hz
R/O-3dB
%
≤ 0.07
≤ 0.09
(STEREO IN)
1kHz
R/O-3dB
%
≤ 0.07
≤ 0.09
20KHz
R/O-3dB
%
≤ 0.07
≤ 0.09
CONTINUOUS AVERAGE POWER
6CH INPUT
20Hz
(6)ohms
W
75
72
at 0.1% THD
1kHz
ତ
W
75
72
(STEREO IN)
20kHz
ତ
W
75
72
S/N RATIO, INPUT SHORT
6CH INPUT
1kHz
R/O
dB
≥ 90
≥ 85
IHF-A FILTER
FREQUENCY RESPONSE (-3dB)
6CH INPUT
1W/1KHz Ref.
Hz~kHz
20~55
20~50
2. CENTER AMP SECTION
*SPKR LEVEL : ALL 0dB *SPK SIZE:LLLY
*6CH INPUT *TONE OFF
INPUT
FREQ.
REMARK
UNIT
NOMINAL
LIMIT
1
INPUT SENSITIVITY
6CH INPUT
1kHz
R/O
mV
200±30
200±50
TOTAL HARMONIC DISTORTION
6CH INPUT
20Hz
R/O-3dB
%
≤ 0.07
≤ 0.09
(STEREO IN)
1kHz
R/O-3dB
%
≤ 0.07
≤ 0.09
20kHz
R/O-3dB
%
≤ 0.07
≤ 0.09
CONTINUOUS AVERAGE POWER
6CH INPUT
20Hz
(6)ohms
W
75
72
at 0.1% THD
1kHz
ତ
W
75
72
(STEREO IN)
20kHz
ତ
W
75
72
S/N RATIO, INPUT SHORT
6CH INPUT
1kHz
R/O
dB
≥ 90
≥ 85
IHF-A FILTER
5
FREQUENCY RESPONSE (-3dB)
6CH INPUT
1W/1kHz Ref.
Hz~kHz
20~55
20~50
DESCRIPTION
DESCRIPTION
2
3
4
5
2
3
4
3
SPECIFICATION
3. SURROUND AMP SECTION
*SPKR LEVEL : ALL 0dB
*6CH INPUT
INPUT
FREQ.
REMARK
UNIT
NOMINAL
LIMIT
1
INPUT SENSITIVITY
6CH INPUT
1kHz
R/O
mV
200±30
200±50
TOTAL HARMONIC DISTORTION
6CH INPUT
20Hz
R/O-3dB
%
അ
0.07
അ
0.09
(STEREO IN)
1kHz
R/O-3dB
%
അ
0.07
അ
0.09
20kHz
R/O-3dB
%
അ
0.07
അ
0.09
CONTINUOUS AVERAGE POWER
6CH INPUT
20Hz
(6)ohms
W
75
72
at 0.1% THD
1kHz
ତ
W
75
72
(STEREO IN)
20kHz
ତ
W
75
72
S/N RATIO, INPUT SHORT
6CH INPUT
1kHz
R/O
dB
ആ
90
ആ
85
IHF-A FILTER
FREQUENCY RESPONSE (-3dB)
6CH INPUT
1W/1kHz Ref.
Hz~kHz
20~55
20~50
4. SUBWOOFER SECTION
*SPKR LEVEL : ALL 0dB
*6CH INPUT
INPUT
FREQ.
REMARK
UNIT
*TONE OFF
NOMINAL
LIMIT
1
PRE OUTPUT LEVEL
SUB-CH(200mV)
30Hz
VOL max.
V
1.7±0.5
1.7±1.0
5. STEREO SECTION
*SPKR LEVEL : ALL 0dB
*TONE OFF(TONE DIRECT)
*TONE OFF(TONE DIRECT)
INPUT
FREQ.
REMARK
UNIT
NOMINAL
LIMIT
1
INPUT SENSITIVITY
CD
1kHz
mV
200±30
200±50
2
CHANNEL BALANCE
CD
1kHz
R/O TO -40dB
dB
±2
±3
4
RESIDUAL NOISE
1kHz
VOL min.
mV
അ
1.0
അ
1.2
5
TOTAL HARMONIC DISTORTION
(20)Hz
R/O-3dB
%
അ
0.07
അ
0.09
CD
1kHz
ତ
%
അ
0.07
അ
0.09
(20)kHz
ତ
%
അ
0.07
അ
0.09
6
CONTINUOUS AVERAGE POWER
(20)Hz
(6)ohms
W
75
72
at 0.1% THD
CD
1kHz
ତ
W
75
72
(20)kHz
ତ
W
75
72
8
S/N RATIO,IHF-A FILTER
1kHz
R/O
dB
ആ
90
ആ
85
9
CHANNEL SEPARATION
100Hz
R/O-3dB
dB
ആ
57
ആ
50
CD
1kHz
ତ
dB
ആ
57
ആ
55
10kHz
ତ
dB
ആ
57
ആ
55
10 FUNCTION CROSSTALK
CDTAPE
1kHz
ତ
dB
ആ
65
ആ
60
10kHz
ତ
dB
ആ
45
ആ
40
11 FREQUENCY RESPONSE (-3dB)
CD
1W
Hz~kHz
20~55
20~50
12 TONE CONTROL , ±(12)dB
100Hz
1W
dB
±12(±2)
±12(±3)
(TONE ON)
10kHz
ତ
dB
±12(±2)
±12(±3)
13 HEADPHONE OUTPUT
CD
1kHz
R/O
V
2.5±0.5
2.5±1.0
H/P = 64ohms
CD
CD
CD
DESCRIPTION
DESCRIPTION
DESCRIPTION
2
3
4
5
*SPK SIZE:LLLY
*SPK SIZE:LLLY
*TONE OFF
*SPK SIZE:LLLY
4
