Hafler DH-110 User Manual

THEPREAMPLIFIERDH-110INSTRUCTIONSfor ASSEMBLYand OPERATIONLM132$3.00Please refer to this serialnumber in all communicationsregarding this equipment.TH

each socket, the board is marked to indicate the side ofthe hole on which the center mounting tab should bepositioned, so that it will be soldered to

23 [7 Select the 6 black 5/8" screws, the 6 spacers, and 6small nuts. Insert the screws from the outside of theback panel at the locations nearer

@0RIGHTnnIGHT PHONO LEFT PHON’i1.6,IN02130315-115T1I’1 II! ot60” 04SELECTOR MONITOR TONEr-I I_EPLI1 1PHONO MSlA Rt+Ks3FLATROUNDD13 D14

HT LINE-aan“;TNo 0109E 0- LEFT LINE --r 0107(J Q-&xoT c21 - 012@oECl9I 1I1

wire to hole Q, which is between the center lugs ofJll and 512. (S). The wire should not protrude sig-nificantly beyond the front surface of the board

IF A PROBLEM ARISESIf neither LED lights when you first turn on the powerswitch, turn the unit off immediately. Check the fuse.Check the polarity of t

ADDITIONAL INFORMATIONRACK MOUNT END CAP INSTALLATIONEvery DH-110 is supplied with front panel accessory endcaps which adapt it to a standard 19” rack

MINIMIZING NOISE IN THE SYSTEMYour choice of separate components is the right way tosecure the best performance from a music system, but thewide-band

Tape 2law 1CD/VideoPhono 1Phono 2TunerRecord OutEPL SendEPL RoturnPHONO1C2BCRTONEFILTEREPLTreble BassSAL VOLv v,0 01LINE OUTPUTITo RightChannelr-KSwit

COMPONENT VALUESAll resistors are 1/4 watt I% Metal Film unless otherwise noted. Rii channel corresponding values have designations above 100.RIR2R3R

SPECIFICATIONSThe numbers in parentheses refer to the paragraph in the IHF specifications manual which defines the test procedure.2PHONO PREAMP SECTIO

PC12aCABLE PIN NUMBERSTUNER @j----o NISELECTOR]”TAPE 1EPL SEND (0)“’I,TIIIe m-c‘I IJlOIDIRECTOUTPUTOUTPUT VIAPHONE JACKPHONO 1PHONO 2GROUNDpos1.sPHONE

PC13lYONOlIB*LINCE]l75y7qC29 C30LINE AMPLIFIERFcml R49520SYMBOLSI3POWER SUPPLY GROUNDmSHIELD GROUNDm LEFT ,6> CHANNEL SIGNAL GROUNDm RIGHT 1o+1o-

KIT PARTS LISTMinor variations may sometimes be encountered in value or appearance. These willnot affect performance. Some items may have been used to

SERVICE POLICY AND LIMITED WARRANTYYour DH-110 Preamplifier has been carefully engineeredto provide many years of use without maintenance or ser-vice.

Printed in USA

INTRODUCTIONYour preamplifier is the control center of your musicsystem, acting as an interface between the soundsources-record players, tape recorder

The DH-110 is provided with accessory Rack Mount endcaps in addition to the standard end caps installed on theunit. These accessory caps extend the wi

fects that can result from unpowered electronic circuits inthe tape decks when they are connected to the RecordingOutputs, it is recommended that tape

The following controls affect all signals which areheard through speakers or headphones. They haveno effect on the signals to the recording outputs.MO

There are three basic rules for success in electronic kitbuilding:1: Read the instructions carefully, and follow them in or-der.2. Make secure solder

Excess solder may be removed from a connection by heat-ing it and allowing the solder to flow onto the iron, which isthen wiped on the sponge.ALL SOLD

BUILDING THE KITPartial mechanical assembly of the kit provides protec-tion for major components during shipment. Most of thehardware thus used is inc