Hafler DH 100 Owners Manual

Page 1

6551f @[F

PBEAMPLIFIER

Series 2

BMW PREAMPLIFIEB
OWNERS MANUAL

LM163
Please refer to this serial
numbelup almommlimcatlfns
a In 3 u on .
THE DAVID HAFLER COMPANY "9 9 1 9'"
Diviszon 0/ Rockford Corp. 4 t I
5910 Crescent Boulevard, Pennsauken, New Jersey 08109 A 383 $ {3'01
613 Soum Rockford Dnve - Tempe, AZ 85281

Page 2

SPECIFICATIONS

(Specifications stated with load of 27K ohms in parallel with
1.5 nanotarads, and for the band between 20Hz and 20KHz

unless noted.) .
PHONO PREAMP SECTION:

Rated Output: 3 Vrms

Maximum Output: 8 Vrms

Harmonic Dlstortion: Less than 0.005%

RIAA Frequency Response: 1 0.25 dB, 2020 KHz
: 0.1 dB, 40-20 KHz

Sensitivity: 10 mV for 1/2 volt @ Record Out

Maximum Input: 180 mV @ 1 KHZ

Gain: 34 dB @ 1 KHz

Input Impedance: 47.5 K ohms in parallel

with 130 pF. 5 diodes, 1 LED
SlgnaIlNoise Ratio: greater than 100 dB, Inputs: Phono, Tuner, Aux, Tape
A weighted. Outputs: Record, Line
_ Controls: Volume, Balance, Treble,
LINE AMPLIFIER SECTION. Bass, Input select by push
Rated Output: 3 Vrms button, Tape Monitor, Power

Maximum Output: 8 Vrms

Harmonic Dlstortion: less than 0.005%

Frequency Response: 2 0.25 dB, 20-20 KHz

Gain: 20 dB

Input Impedance: greater than 35 K ohms

Signal/Noise Ratlo: greater than 100 dB,
A weighted

INTERLOCKED
r-saae II "tux-1 ssLscron

Crosstalk: down 80 dB
Separatlon: greaterthan 70 dB @ 1 KHz,
55 dB @ 10 KHz
Bass Control: 2 10 dB @ 20 Hz, moving
inflection type
Treble Control: :10 dB @ 20 KHz,
shelving type

GENERAL SPECIFICATIONS:
Semiconductors: 7 integrated circuits,

AC Supply Voltage: 95-130 or 190-260 VAC,
5060 Hz.

Power Consumption: less than 5 watts

Ac Convenience Outlets: 2 switched

Size: 13-9/16 x 3 x 10 inches

Shipping Weight: 9 lbs.

Net Weight: 7 lbs.

DHIOO FUNCTIONAL DIAGRAM

Yul-En

: l-zoaeJ K;
Aux m -' mun: \
TAPE
Momma k:
55 \ Mute
rave

WARNING: To prevent tlre or shock hazard, do not expose this equipment to rain or moisture.

© Copyright 1988. All rights reserved.

IUTTONS
mono > > 9,. > <1 r 0 a. fi nzeono
E VOLUME IALANCE
Iun i

Lg?_13\ " $\_ _>_ LINE
4;:

CONTENTS
Specifications ........................ 2 Additional Parts List ................... 5
Functional Diagram .................... 2 Operation ............................ 6
Installation .......................... 3 Notes on the Circuitry .................. 6
Component List ....................... 4 Additional Information ................. 7.
Parts Placement Diagram ............... 4 Warranty and Service Policy ............. 8
Schematic Diagram .................... 5

Page 15

38 D Select the red LED, and note that adjacent to one
lead the red flange has a tiny flat which marks the
cathode lead. This lead will be connected to the
green wire, and thus to hole 3 on the board. To
position the LED properly, so that it will engage the
hole in the front panel, hold the LED pointing to-
ward you with the flat on the right side. Bend the
lead upwards at a right angle, 1/8 behind the red
base flange. Then bend the leads into an open V,
so that they may be pushed up through the holes in
the lug terminal strip. When the tip of the LED is
1/2 above the top surface of the square plastic
switch shaft, bend the LED leads sharply outward
to support the LED while it is soldered. This should
position it so that the rear surface of the red flange
is in a vertical line with the front of the switch
handle when it is out (released). Solder the red and
green wires to the lugs, as well as the two LED
leads. Before you cut off the excess LED lead
length, it is best to check by temporarily putting
the front panel in position, after placing the black
plastic switch pushbuttons on the switches for

alignment.
1/8
LED
_ r-

I FLAT

2. l

'\_ |
|
|
I
POWER

SWITCH

39 D Remove the round pushbutton from the power
switch shaft, and select the piece of black plastic
shrink tubing. Cut a 1/4 length of tubing, and slip it

over the LED so that it touches the upturned leads
at the rear. Hold a lighted match below it, and it will
shrink to fit, and thus prevent extraneous glow
from the rear of the LED.

40 I] Reinstall the round plastic pushbutton on the
switch shaft, and select the 4 knobs, the 4 set
screws, and the small L-shaped Allen wrench.
Place a screw on the end of the wrench, and thread
it into a knob. Install each of the knobs so that the
set screw engages the flat on the control shaft.

41 D Select the front panel, the two end caps, and the
four large nuts. Remove the long cap screws which
were temporarily holding the front sub'panel in
place, slip the end caps into the ends of the front
panel, and install the assembly on the chassis. Be
sure the LED protrudes through the front panel
hole properly. Fasten the assembly to the chassis
with the four cap screws and their nuts, using the
large Allen wrench.

42 D Install the long U-shaped piece of plastic grommet
over the top lip of the front sub-panel.

Make a visual inspection of the diode orientation,
capacitor orientation, the green wire which is connected
to the 3 hole, and the nomenclature on the controls, as
well as the general quality of solder connections on the
bottom of the board. Make sure the wire to hole H does
not protrude too far. Check that the fuse is in place.

43 El With 6 of the black sheet metal screws, install the
bottom so that the edges turn inward, toward the
top of the unit. The narrow edge is to the rear.
Select the 4 rubber feet, remove their backing, and
install them in the corners of the bottom plate,
about 1" in.

44 D Slide the cover on from the rear, and secure it with
4 sheet metal screws on the bottom, and one at the
center rear. Alfix the self adhesive serial number
label to the center rear of the bottom.

You may wish to secure the small Allen wrench (for the
knobs) to the bottom of the unit with tape, for future con-
venience.

CONGRATULATIONS!
Enjoy this truly outstanding preamplifier.

...

5910 Crescent Boulevard - Pennsauken, New Jersey 08109 0 609/662-6355
DIV/sion of Rockford Corp. 0 613 South Rockford Drive 0 Tempe, AZ 85281