Harman Kardon HK 3370 (serv.man6) Service Manual ▷ View online
The Harman Kardon
Model HK 3370 / HK 3470
Manual A
STEREO RECEIVER
CONTENTS
TECHNICAL SPECIFICATIONS…………....3
ALIGNMENT PROCEDURES ………………5
CIRCUIT DESCRIPTION…………………….8
BLOCK DIAGRAM………………………..…16
DISASSEMBLY PROCEDURES……..……17
EXPLODED VIEW..…………………..……..19
PRINCIPAL SCREW LOCATION...…...…..21
ALIGNMENT PROCEDURES ………………5
CIRCUIT DESCRIPTION…………………….8
BLOCK DIAGRAM………………………..…16
DISASSEMBLY PROCEDURES……..……17
EXPLODED VIEW..…………………..……..19
PRINCIPAL SCREW LOCATION...…...…..21
PARTS LIST……………………….…..…….27
IC BLOCK DIAGRAM……………………….63
PRINTED CIRCUIT BOARDS…………..…71
SCHEMATIC DIAGRAMS …………..……..77
WIRING DIAGRAM…………………………82
PACKING MATERIAL………………………83
IC BLOCK DIAGRAM……………………….63
PRINTED CIRCUIT BOARDS…………..…71
SCHEMATIC DIAGRAMS …………..……..77
WIRING DIAGRAM…………………………82
PACKING MATERIAL………………………83
harman/kardon
Parts and Service Office
80 Crossways Park West, Woodbury, N.Y. 11797
Printed in Korea
Power
Phones
Mute
Speaker 1
Speaker 2
FM
AM
FM Mode
Volume
Bass
Min
Max
Treble
Balance
Phono
T- Mon
Tape
CD
Aux
Dimmer
Sleep
Preset
Tuning
Preset Scan
Min
Max
L
R
F RONT AMP SECTION
Continuous Power Output
(STEREO MODE), Input: CD
THD: 0.08%, 8ohms
Both Channel Driven (20Hz - 20KHz)
(STEREO MODE)
THD: 0.2%, 4ohms, Input: CD
Both Channel Driven (20Hz - 20KHz)
THD at 65W, 8ohms, Input: CD
2 0 H z
1 K H z
2 0 K H z
IM Distortion at 50W, 8ohms,
Input Sensitivity for Rated Power Output
Tape Monitor/CD/AUX/TAPE2
P h o n o
S/N Ratio Input Shorted at 1KHz 70W Output ( WTD IHF-A)
C D
Tone Control
Bass: 100Hz
Treble:
Frequency Response at -3dB
Mode: Stereo, Ref: 1KHz, 10Hz-120KHz 15Hz-100KHz
Channel Crosstalk Input Shorted by 1Kohms
1 0 0 H z
1 K H z
1 0 K H z
N o m i n a l
≥
7 0 W
≥
9 5 W
≤
0 . 0 5 %
≤
0 . 0 5 %
≤
0 . 0 5 %
≤
0 . 0 5 %
( 7 0 W )
2 0 0 m V
2 . 5 m V
≥
1 0 0 d B
+ 1 0 d B
- 1 0 d B
+ 1 0 d B
- 1 0 d B
≥
7 0 d B
≥
7 0 d B
≥
5 0 d B
L i m i t
≥
6 5 W
≥
9 0 W
≤
0 . 0 8 %
≤
0 . 0 8 %
≤
0 . 0 8 %
≤
0 . 0 8 %
1 5 0 - 2 5 0 m V
2 . 2 - 2 . 8 m V
≥
9 5 d B
+ 1 0
±
2 d B
- 1 0
±
2 d B
+ 1 0
±
2 d B
- 1 0
±
2 d B
≥
6 0 d B
≥
6 0 d B
≥
4 2 d B
G E N E R A L
Power Consumption
At Rated Power All Channel Driven
Idling at Minimum Volume Control
Power Supplies
Dimensions (W
×
H
×
D )
i n c h e s
m m
Weight (lbs/kgs)
4 3 6 W
7 2 W
AC 120V, 60Hz
1 7 . 4
×
6 . 1
×
1 6 . 3
4 4 2
×
1 5 6
×
4 1 5
2 4 . 6 / 1 1 . 2
FM SECTION
Tuning Cover Range: 100KHz Step
Mono Usable Sensitivity (75ohms Input,98MHz)
Image Rejection (at 98MHz)
IF Rejection (at 98MHz)
50dB Quieting SEnsitivity (at 98MHz, 100% MOD.)
IHF Band Pass Filter
S t e r e o
Distortion (1KHz, 100% MOD. at 98MHz, 65dbf Input)
IHF Band Pass Filter
M o n o
S/N Ratio (500 Input, 100% MOD. at 98MHz)
IHF Band Pass Filter
S t e r e o
Frequency Response (-3dB)
De-Emphases: 75
㎲
AM suppression at 98MHz
Muting threshold (at 98MHz)
Overload Distortion at 98MHz
Capture Ratio at 65dbf
Stereo Separation (at 98MHz, 100% MOD.,500
㎶
I n p u t )
IHF Band Pass Filter
1 K H z
Tape out Level (at 98MHz)
N o m i n a l
87.50 - 108.00MHz
≤
1 2 . 2 d b f
≥
4 0 d B
≥
8 0 d B
≤
4 1 . 2 d b f
≤
0 . 3 %
≥
6 5 d B
20Hz - 15KHz
≥
5 2 d B
3 5 . 2 d b f
0 . 3 %
≤
1 . 5 d B
≥
4 0 d B
5 0 m V
L i m i t
≤
1 7 . 3 d b f
≥
3 5 W
≥
7 0 W
≤
4 7 . 3 d b f
≤
0 . 5 %
≥
6 0 d B
40Hz - 14KHz
≥
4 7 d B
31.2 - 39.2dbf
1 %
≤
2 . 5 d B
≥
3 0 d B
350 - 650mV
AM SECTION
Tuning Cover Range: 10KHz Step
Usable Sensitivity
9 9 9 / 9 9 0 K H z
Image Rejection (at 999KHz)
AGC Figure of Merit (From 100mV/m at 999/1000KHz)
Distortion (999/1000Hz, 30% MOD. 50mV/m Input)
Frequency Response (999/1000KHz) at -6dB
Selectivity (at 999/1000Hz)
9KHz / 10KHz
S/N Ratio (999/k1000KHz, WithAntenna Input 50mV/m)
Overload Distortion at 98MHz
Tape out Level at 999/1000KH (5mV/m Input)
N o m i n a l
520 - 1710MHz
≤
5 0 0
㎶/ m
≥
3 5 d B
≥
5 5 d B
≤
1 . 0 %
80Hz - 2.3KHz
≥
2 5 d B
≥
4 0 d B
≥
1 %
L i m i t
≤
1 0 0 0
㎶/ m
≥
3 0 d B
≥
5 0 d B
≤
1 . 5 %
100Hz - 2KHz
≥
2 0 d B
≥
3 5 d B
≥
1 . 5 %
HK3370
3
1. Technical Specification
F RONT AMP SECTION
Continuous Power Output
(STEREO MODE), Input: CD
THD: 0.08%, 8ohms
Both Channel Driven (20Hz - 20KHz)
(STEREO MODE)
THD: 0.2%, 4ohms, Input: CD
Both Channel Driven (20Hz - 20KHz)
THD at 65W, 8ohms, Input: CD
2 0 H z
1 K H z
2 0 K H z
IM Distortion at 75W, 8ohms,
Input Sensitivity for Rated Power Output
Tape Monitor/CD/AUX/TAPE2
P h o n o
S/N Ratio Input Shorted at 1KHz 100W Output ( WTD IHF-A)
C D
Tone Control
Bass: 100Hz
Treble:
Frequency Response at -3dB
Mode: Stereo, Ref: 1KHz, 10Hz-120KHz 15Hz-100KHz
Channel Crosstalk Input Shorted by 1Kohms
1 0 0 H z
1 K H z
1 0 K H z
N o m i n a l
≥
1 0 0 W
≥
1 3 0 W
≤
0 . 0 5 %
≤
0 . 0 5 %
≤
0 . 0 5 %
≤
0 . 0 5 %
( 1 0 0 W )
2 0 0 m V
2 . 5 m V
≥
1 0 0 d B
+ 1 0 d B
- 1 0 d B
+ 1 0 d B
- 1 0 d B
≥
7 0 d B
≥
7 0 d B
≥
5 0 d B
L i m i t
≥
8 5 W
≥
1 2 0 W
≤
0 . 0 8 %
≤
0 . 0 8 %
≤
0 . 0 8 %
≤
0 . 0 8 %
1 5 0 - 2 5 0 m V
2 . 2 - 2 . 8 m V
≥
9 5 d B
+ 1 0
±
2 d B
- 1 0
±
2 d B
+ 1 0
±
2 d B
- 1 0
±
2 d B
≥
6 0 d B
≥
6 0 d B
≥
4 2 d B
G E N E R A L
Power Consumption
At Rated Power All Channel Driven
Idling at Minimum Volume Control
Power Supplies
Dimensions (W
×
H
×
D )
i n c h e s
m m
Weight (lbs/kgs)
5 7 5 W
7 2 W
AC 120V, 60Hz
1 7 . 4
×
6 . 1
×
1 6 . 3
4 4 2
×
1 5 6
×
4 1 5
2 4 . 6 / 1 1 . 2
FM SECTION
Tuning Cover Range: 100KHz Step
Mono Usable Sensitivity (75ohms Input,98MHz)
Image Rejection (at 98MHz)
IF Rejection (at 98MHz)
50dB Quieting SEnsitivity (at 98MHz, 100% MOD.)
IHF Band Pass Filter
S t e r e o
Distortion (1KHz, 100% MOD. at 98MHz, 65dbf Input)
IHF Band Pass Filter
M o n o
S/N Ratio (500 Input, 100% MOD. at 98MHz)
IHF Band Pass Filter
S t e r e o
Frequency Response (-3dB)
De-Emphases: 75
㎲
AM suppression at 98MHz
Muting threshold (at 98MHz)
Overload Distortion at 98MHz
Capture Ratio at 65dbf
Stereo Separation (at 98MHz, 100% MOD.,500
㎶
I n p u t )
IHF Band Pass Filter
1 K H z
Tape out Level (at 98MHz)
N o m i n a l
87.50 - 108.00MHz
≤
1 2 . 2 d b f
≥
4 0 d B
≥
8 0 d B
≤
4 1 . 2 d b f
≤
0 . 3 %
≥
6 5 d B
20Hz - 15KHz
≥
5 2 d B
3 5 . 2 d b f
0 . 3 %
≤
1 . 5 d B
≥
4 0 d B
5 0 m V
L i m i t
≤
1 7 . 3 d b f
≥
3 5 W
≥
7 0 W
≤
4 7 . 3 d b f
≤
0 . 5 %
≥
6 0 d B
40Hz - 14KHz
≥
4 7 d B
31.2 - 39.2dbf
1 %
≤
2 . 5 d B
≥
3 0 d B
350 - 650mV
AM SECTION
Tuning Cover Range: 10KHz Step
Usable Sensitivity
9 9 9 / 9 9 0 K H z
Image Rejection (at 999KHz)
AGC Figure of Merit (From 100mV/m at 999/1000KHz)
Distortion (999/1000Hz, 30% MOD. 50mV/m Input)
Frequency Response (999/1000KHz) at -6dB
Selectivity (at 999/1000Hz)
9KHz / 10KHz
S/N Ratio (999/k1000KHz, WithAntenna Input 50mV/m)
Overload Distortion at 98MHz
Tape out Level at 999/1000KH (5mV/m Input)
N o m i n a l
520 - 1710MHz
≤
5 0 0
㎶/ m
≥
3 5 d B
≥
5 5 d B
≤
1 . 0 %
80Hz - 2.3KHz
≥
2 5 d B
≥
4 0 d B
≥
1 %
L i m i t
≤
1 0 0 0
㎶/ m
≥
3 0 d B
≥
5 0 d B
≤
1 . 5 %
100Hz - 2KHz
≥
2 0 d B
≥
3 5 d B
≥
1 . 5 %
HK3470
4
1. Test Equipment Required.
AM Standard Signal Generator (AM SSG) Audio Generator
Oscilloscope Distortion Meter
AC Voltmeter DC Voltmeter
FM Standard Signal Generator (FM SSG) Frequency Counter
Stereo Modulator
Note: Disconnect external FM antenna prior to alignment
AM Standard Signal Generator (AM SSG) Audio Generator
Oscilloscope Distortion Meter
AC Voltmeter DC Voltmeter
FM Standard Signal Generator (FM SSG) Frequency Counter
Stereo Modulator
Note: Disconnect external FM antenna prior to alignment
2. Alignment and Test Points
3. AM IF and RF Alingment
Preparation
1. Output of signal Generator should not be higher than necessary to obtain an optimum output reading.
2. Signal Generator Modulation: 30%
3. Switch: Press to AM.
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HK3370 / HK3470
5
2. Alignment Procedures
