Eico HF-14 Скачать руководство пользователя страница 8 | Manualshive

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Eico HF-14 Скачать руководство пользователя страница 8

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Содержание HF-14

Страница 1: ...14 WATT HIGH FIDELITY POWER AMPLIFIER MOD E L HF 14 A INSTRUCTiON MANUAL TRDNIC NORTHERN E L E C 330 D INSTRUMENT CO BLVD l J BITT Iffw 1 7 OT A F W UI nl A Y W f A t II INC 1 ...

Страница 2: ...and to insure that variations in components and constnJctlon wiII not affect the perfor mance Stability is maintained on all speaker taps with loads rongingfrom zero to infinity Overload character istics are excellent and the HF 14will notexhlbit bounce or flutter under pulsed conditions The HF 14can be operated from any premlpllfier control unit A power take off socket is provided for powering th...

Страница 3: ...driver b Remove the 6 sc which fastenth bottom plate to the chassis c Place th bottom plate bumps facing up at the location on thuhelf or other mounting surface In which It is de lred to mount the amplifier With a sharp pencil placed with its point directly agaInst the edge of the lowersurface ofthe bot tom plote draw the outline of the bottom plate on the shelf and also marie the positions of the...

Страница 4: ...nor mally the convenienceovtlats on the preamplifier wfIJ be used However the HF 14 outlets may be used also if desired In which case both of them will be switched INTERCONNECTION OF COMPONENTS SIGNAL 0 PREAMPLIFIER CONTROL TO POWER AMPLIFIER Single conductor shielded coble must be used to inter connect the preampllfter eontrol unit or tuner preampli fier control unit and the power amplifier Unles...

Страница 5: ... components in the s Item If the trouble Is no output or low output and the amplifier is suspected check AC signal voltagn stortlng at the In put and working step by Step toward the output using a slne wave audio signal generator and 0 VTVM Set the Inpu Ignal to 1 vol The arrespandlng grid and plate slpoKll voitaguforthllinput are Indicatedon theschematlc dl_ Thl procedure heuld ufflce to locall t...

Страница 6: ... voltage b High voltage c Low 10 Itage TROUBLE SHOOTING CHART CAUSE Short in line cord J2 J3 or associated equipment plugged Into J2 or J3 If the amplifier causes a replacement fuse to blow with rectifier tube VJ removed primary or high voltage secondary windings of 12 are Incorrectly wired or shorted If Fl does not blow after replacement with V4 removed check for short in 11 circuih defective V4 ...

Страница 7: ...2W 10 yellow viole r lIow lIver I 2002 wCIIIMr lock 6 10 11563 1 8KQ 1 2N 5 lEo bn wn gilly red Id I 62007 _her Jock 0l IO 11527 lOOKO 1 2N 5 b bloclc r llow lei 2 62008 w lwr Jock IS e 100412 330Kn 1 7N t 10 aronge OI QIlge yellow stiver 2 62002 w her f1al 8 115 18 221 0 1 lW II S l d red ar ngo gald I 200II lug 6 I 16600 RI2 ros 1650 5W 5 I 63006 lug 8 I II Rl5 rei 680Q 1 ZW 1I 10 blue 1iI 9Y br...

Страница 8: ...RI pot SCIOKO aud o R2 ros lOKQ 1 zw 1 R9 C6 R3 res 470KO I ZN 1 10 R4 res 1 8KQ 1 2N I 5 R41 R7 C4 5 R13 OS res 10KO 1 211 l 109b R6 res 100m 1 2W I 5 R7 res l00KO 1 lW I 5 V3 T1 R8 res 33OKO 1 211 1 10 R9 res 33OKO I ZW 1 10 RI tel 10Kg 1 10 Rll res KO l tNi l ft Y Z II t 9 RI2 res 1 sQ SW l It Rl 4 t V4 RI3 10J Q 1 7rN 1 RI4 res 101m 1 2N 1 10 RI5 res 6EIOQ 1 211 1 10 Fl 51 switch slide T1 tran...

Страница 9: ... p 0 0 ff 0 c o 0 0 s N n _ 0 1 H 0 c n r o _ nO o c l l PI 0 j I _0 0 0 _ 0 c 0 0 0 R z p g 0 t b s il 0 g ti 0 s l 0 o 0 0 0 0 i 0 0 CO o i s o ...

Страница 10: ...llfoctory On the other hand if too much heat it applied a Joint the parts connected to it may either change valu loose their pra ctl coating or break down If you or sol der1ngclos to a port hold th lead between the port and the Joint being 101 dered with the tip of a pair of 10ngn05e pliers The pliers will conduct the heat away and prevent the componell t from being unduly overheated If for any re...

Страница 11: ... x 00 I U 2 ...

Страница 12: ... melting solder onto the wire with a hotsoldering trbn 2 Fig 1 On the output transFormer 11 32005 cut the green lead to 3 1 2 the yellow lead to 1 1 211 and the blue lead to 4 1 2 Do not cut the remaining leads Mount the output transformer as shown with the brown end the yellow leads closest to the rectaneiJlarhole in the stcleofthe chassis Ag 4 5 U e fou S lockwaohen and fou s 32 hex nuh 3 Fig 1 ...

Страница 13: ... N co l 4C ...

Страница 14: ...lock hook up wire Strip 3 4 of insulatIon from both ends of each this will leave 1 2 of Insulation at the exact center of each wire Bend each wire into a U shape One will be used as a Jumper between pins 2 and 3 of the octal plug and the other Cll a Jumper between pins 6 end 7 of the oc tol plug 8 Fig 2A Pulh one end of one lead into pin 2 of the octal plug and the other end of the same I od into ...

Страница 15: ...N x t u X t x M I V ...

Страница 16: ...n Use large rubber wcaher 1 outside the chassis ngh en to hOllis with hex nut supplied Do not ighten too much or holder will crac k 3 FIg 3 Mount the tube sockeh XV2 XV3 and XVJ ca fig J Use two 4 40 screws two 4Ioc ewe hen and two 4 40 hex nuts aneach 4 Fig 3 Mount the two post _Inal baardTB3 and the post mlnal board 1Mas shown Use one 6 32lcrew one 6Iockwasher d0Nl 6 32 hex nuton each ...

Страница 17: ...00 1 TBl Rll C7 TB2 XV3 R1 1 4 2 3 51 T1 XV2 XVl TB4 TB3 R14 C8 XV4 C9 T2 8 4 XFl ...

Страница 18: ... T2 twl th two green leads to gether Connect one lead to XV t and the iecond green lead to XV4 S C 10 t 4 Co t one II 0 a ple08 0 brownwire to XV S and an nd al 2 pl f II wi to XVo4 1 53 Twi 1 the I ads to IOthor and _oal to the end of the brown wi to J4 2 1 and Ih oth r end 0 th yellow wI to 1 S1 11 ig 4 From the powenral sformer 12 twist the two red leads to gether Connect the shorter red leael ...

Страница 19: ... 6 I R10 XV2 R5 J4 R15 o TB2 4 XVl XV3 5 Rl 1 R13 R9 R2 R3 2 J1 TB3 R8 R12 R6 3 TI14 XV4 R7 Fig_ 5 J3 R4 ...

Страница 20: ...cltor CI to 3 4 Caver one l ad with a 1 2 p ece of spaghetti Q Id connect to XV1 1 53 Connect the other lead to T83 2 e 13 Fig 5 Cut both leads on I 10KO brown block orange sliver re slster RS to 1 2 Ccnneet rrom T83 1 53 to T83 2 52 14 5 cttboth leads on a 1 8KO brown grey red gold resistor R4 to 3 4 CoMect from XVI 3 S to T84 2 C 15 tI1lg S Cut both leads on a 2 mmf dIsc capacitor C3 to JlI Cove...

Страница 21: ...cepeelte last measurement These me power supply components and taln these resistance values discovered CI ld the condition proceed to step 6 KE THfFOLLOWING RESISTANCE CHECKS EAC LINE Check for a cold dc resistance of plug chock for a rEilistance of at lead 85 ohms 7ofXV4 cheek for a resistance of at leest lOOK ifier tube V4 and ground AlloWsufficient time to be charged by the ohmmeter battery in ...

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