SERVICE MANUAL DH40H
Contents
1. 1 2 R4 R21 6588 C30 22N 400V C43 6 680P 100V 2N2 400V R44 TAW val 8 2 68 cel Z MES g 400 mo ANo 2X TRIODE Body 21830 1 Function 18AWG 18AWG Val gre 24 1 A wo 4 e w21 Rue VUA R33 V2 A 1 4W 4 2X HCT 56 2 hoon 3 Body R23 Body z R40 ok 9180 J5 7 4 at Poweramp In R49 gt J2 TAW C27 5101 68K f 4 7095 10 2 R19 5 2 an ms 1 54 C40 5808 Pr amp Out 2 T Ix R41 R39 R72 N2 R59 18AWG 18AWG C42 SM NS e w32 q W33 v T T 4 e d 4 ND FXGND CHASSIS Twisted2. 11 l onHorse DH40H D12 007 Goo YEL Mi423 2 4 Eb 5 6399 Push Pull R61 Standby 6398 MPSA13 Re2 w35 GRN 5 LD3 3 Single Ended 6396 BlankSize 12500x11500 4 gt SEE LAYOUT DOCUMENTATION 6808 Reo In M1423V03 M1423V03 XFMR Pri Rec DES nenm S R E ots Switchin Out 4 2 R45 28D a ns iw M1423 SWITCH SUPPORT PLATE LIMIT D16 R61 R62 ETES STBY DPDT TOGGLE M1423 D12 09 7900 v 007 6399 6398 Standby Push Pull YEL RED R77 Single Ended 6396 M1423 SEE LAYOUT DOCUMENTATION 7 2348 Pots Switching 4 H E 12729 81 P mener 693 rl BC550C p BC550C Q5 S3 R24 on z A co SL I 1 R76 _ 22 W27 c3 V03 BlankSize 12500x11800 4 S
3. Yorkville SERVICE MANUAL 7 Ti MODEL 51092 WEB ACCESS http www yorkville com IRONHORSE WORLD HEADQUARTERS CANADA U S A Yorkville Sound Yorkville Sound Inc 550 Granite Court 4625 Witmer Industrial Estate Pickering Ontario Niagara Falls New York L1W 3Y8 CANADA 14305 USA Voice 905 837 8481 Voice 716 297 2920 Fax 905 837 8746 Fax 716 297 3689 Yorkville Quality and Innovation Since 1963 Printed in Canada Manual Service DH40H 00 1v1 pdf IMPORTANT SAFETY INSTRUCTIONS This lightning flash with arrowhead symbol within The exclamation point within an equilatereal triangle is an equilateral triangle is intended to alert the user to AUTIO N A VIS intended to alert the user to the presence of important the presence of uninsulated dangerous voltage operating and maintenance servicing instructions in within the product s enclosure that be of sufficient RISK OF ELECTRIC SHOCK the literature accompanying the appliance magnitude to constitute a risk of electric shock to persons DO NOT OPEN Le point d exclamation l int rieur d un triangle quilat ral Ce symbole d clair avec t te de fl che dans un triangle RISQUE oor ror ARE 5 est pr vu pour alerter l utilisateur de la pr sence e quilat ral est pr vu pour alerter l utilisateur de la pr sence d un voltage dangereux
4. DATE VERE DESCRIPTION OF CHANGE D V D V D V D V D V MISPENDNGCHANGES PENDING CHANGES MODEL PC PENDING CHANGE X PC X X X X M1423 Potlist MODEL S ron Horse IHAO0H REF I EUNCTION PARTA KNOB I NEWI V D V D V D V D V D V D V D V D V D V D V D V D V D V D V D V D V D V D V D V D V D V TREBLE MASTER Bias Trim F STYLE P32 e MO O1 CO a O O0 NI O CO NO O1 gt ND Zzzzzzzzzzzzl mn ONHO O lt lt lt lt lt lt lt lt lt lt lt lt lt LEAD PIN REFERENCE BC550C BC560C MPSA13 CBE IGO EBC TO 92 12AX7A TO 220 TO 92 DH40H Parts List 11 15 2011 Description JEWELED PILOT LAMP AMBER ROHS V1 Description 1 4W 113K T amp R RES GREEN 5MM LED 2V1 20MA HIGH EFF 1 4W 220K T amp R RES RED 5 LED 1 5 20MA HIGH EFF 1 4W 330K T amp R RES YEL 5MM LED 1V5 20MA HIGH EFF 1 4W 470K T amp R RES 1N4007 1000V 1A0 DIODE T amp R 1 AW 1M 5 T amp R RES 1N4148 75V 0A45 DIODE T amp R RELAY 1C 02AMP DC24 006MA PC S L7824 TO220 P 24V0 REG 6 X 1 4 PAN PH TYPE B 95500 BC550C TO92 NPN TRAN T amp R TB 4 40 X 3 4 FLAT PHIL MS B O amp WAX MPSA06 TO92 NPN TRAN T amp R TA 6 32 X 1 4 PAN PH TAPTITE JS500 5 13 TO92
5. 2 nd ies To 3429 Rocker Switch 9 W26 A 12 12 W26 R18 w26 B 12 2 2 12 26 1 1 Veil Wae 812 12 w26 27 MASTER 27 3 3 5 W26 C GND W26_ C W27 B 2 WPER 4 jW27 8 4 PLATE y 4 4 was rone fus i c e 5 5 5 4 4 80 W26 E GND W26 o 4 en W27 D os ino T Cafes Master Volume Ribbon d RN woe G 12 Prswz 12 W26 3 R25 180 OOO woe H 12 9 9 12 woe H ree qnte 1 Fd ik 5 12 9 PFSWI 9 12 26 1 R36 V2 took TRIODE 8 PENTODE RETURN 1 W 4 1B 12 19 psw 9 12 w26 J 56K 2X TRIODE HCT 4424 on m ES e B 3I 12 1 2 Body c5 2X FIXED MODE mae 12 12 Body Fuirewno 26 1 12 24 12 w26 1 R11 12 29 m 22 2Vdc vec 1 RP R20 R38 R48 Ribbon to Pots C17 EA nns j 1 BIAS 1 AW e 6 hoov 10K 1 4148 22K s E C32 mis MID Description 1 i I 63V GND S5 B C26 Hz was L8 V5CB CE fwas Body 045 gt DOWN 109 160V 3827 DUT GND 2 2 B GND GND c4 2X TRIODE HCT 104
6. an 3 3 Sfwirewno BLK 6 C was GNO Val lt 6 f Was TRIODE Go t Bis o RAGE YS 1331M 5 5 R6 SE_LED C jwas E PENT_GRID 1 4W R50 SCRN 6 6 22N 400V 1 54 2 0W waste 24V Cfwss 3K Ribbon LEDs Standby SPUT 24V PFSW2 PLATE_B 24V 24V de 4148 vy R61 l 1 _ YEL abge T i PTT 4148 62 5 F lt Push Pull gt 1 5 LD1 7 E 24V BD re UP D16 MPSA13 8 K4 B Kb B I R76 R78 RED MID LH2 22 82 21 22282 21 SK 7 77 71 EK SK 777771 6398 ssa le iia 1 m PURE SOLO Single Ended DOWN 092 46 C47 DPDT TOGGLE SW M 4148 T OGGLE SW MINI SLDR TERM 4 z R67 z R68 Di DCGND 2 47 478 GRN 10 UP UP E BC55 6396 R74 R79 UP Push Pull Full Power 4 4 1 4W 8 5 LT X MID STANDBY _ S3 A S3 B 70N Er He DOWN Cathode Bias Low Power PURE PURE DOWN DOWN EA nd RTS S 1 ronH DH40H ji NV ronnorse DCGND 56K D19 Date Tue Feb 28 2012 Rev V03 YsType 8 _ o mo Boo KR oot ON Filename M1423VO3sch sch2006 North America Fuse T1A CE Fuse T400mA CH1343E CH1343U TRANSFORMER CABLE CONNECTOR REQUIRES MODIF
7. SPDT TOGGLE SW MINI LRG BAT 100 63V 209 T amp R RAD 2EL 250 MALE TAB 2lN T amp R 100 450V 20 EL 12AU7 JJ DUAL TRIODE PREAMP TUBE 220 450V 20 EL l linl nl nl lal in o gt gt 12AX7 DUAL TRIODE PREAMP TUBE 2200 35V 20 CAP T amp R RAD 2EL EL34 PENTODE OUTPUT TUBE 470U 63V 20 CAP BLK 12X25MM EL N 9 PIN PC MOUNT TUBE SOCKET BE 82U 450V 20 CAP BLK 22X30MM 8 PIN PC MOUNT TUBE SOCKET BE 1B LIN 9MM P32 DH40H POWER TX SHIELD FIRST 200 500K 1BLIN 9MM P32 CH1343 DH40H XFMR 500K 15AAUDIO 9MM P32 CH1343M DH40H OPT 10K TRIM POT 30 X 50 1 5MIL PLASTIC BAG SNAP ON 0 843 INSULATING BUSHING 3 5H CHOKE 50MA 0R137 IRON CORE RUBBER BUMPER WITH WASHER SMALL CLIP 205 187X032 18 22AWG DISCO INS CLIP 250X032 18 22AWG DISCO INSL RING TERMINAL 16AWG WIRE amp 8 SCREW NEUTRIK JACK NUT RED 1 4 JCK PCB MT ALL GOLD SKT 1 4 JCK PCB MT VERT STER RT SWT T2 0AL 5X20MM FUSE AP SERIES HANDLE BARE 6061 T6 ALUM RUBBER GROMMET 2183 034 BLK IEC PWR SOC W 205TAB amp FUSE 10A250V 4 NYLON CABLE TIE 3X2PIN 4 2MM RA HEADER VAL U LOK 2PIN 4 2MM HEADER VAL U LOK 4 2MM HEADER VAL U LOK KNOB CHICKE
8. non isol proximit de l enceinte du produit qui pourrait tre d ampleur suffisante pour pr senter un risque de choque lectrique mmm FOLLOW ALL INSTRUCTIONS Instructions pertaining to a risk of fire electric shock or injury to a person CAUTION TO REDUCE THE RISK OF ELECTRIC DO NOT REMOVE COVER OR BACK NO USER SERVICEABLE PARTS INSIDE REFER SERVICING TO QUALIFIED SERVICE PERSONNEL THIS DEVICE IS FOR INDOOR USE ONLY Read Instructions The Owner s Manual should be read and understood before operation of your unit Please save these instructions for future reference and heed all warnings Clean only with dry cloth Packaging Keep the box and packaging materials in case the unit needs to be returned for service Warning To reduce the risk or fire or electric shock do not expose this apparatus to rain or moisture Do not use this apparatus near water Warning When using electric products basic precautions should always be followed including the following Power Sources Your unit should be connected to a power source only of the voltage specified in the owners manual or as marked on the unit This unit has a polarized plug Do not use with an extension cord or receptacle unless the plug can be fully inserted Precau tions should be taken so that the grounding scheme on the unit is not defeated An apparatus with CLASS construction shall be connected to a Mains socket outlet with a protecti
9. DARL T amp R 6 32 X 5 16 PAN PH MS JS500 220P 200 5 T amp R RAD CER 2NPO 6 32 X 3 8 PAN 5500 _47 100V 109 T amp R BEAD NPO 6 32 X 3 8 FLAT PH TAPTITE BOZC HEA 1 400V 5 T amp R RAD 2FLM 8 32 X 5 16 PAN QUAD TAPTITE JS500 2N2400V 5 CAP T amp RRAD 2FLM 8 32 X 5 8 PAN PH JS500 AN5 200V 5 T amp R RAD CER 2NPO 8 32 X 2 PAN PH TAPTITE ZINC CLEAR 3N3 100V 5 RAD 2FLM 10 32 X 3 8 FILLISTER QD MS ZN 680P 100V 5 T amp R RAD CER 2NPO NYLON STANDOFF NUT 4 500MIL 10N 100V 10 RAD 2FLM 6 32 SCREW TERMINAL PC MNT SNAP IN _22N 400V 1096 RAD POLY FLM 1 2 PLASTIC HEX SPACER 6 _22N 275V 20 X2 15MM 3 8 1D FLAT WASHER ___AN7 250V 20 Y 10MM 3 8 INT TOOTH LOCKWASHE ZINC 500V 20 RAD CER DISC BULK SHOULDER WASHER 483 X 125 BLACK 100N 63V 5 T amp R RAD 2FLM 6 FLAT WASHER NYLON 470 63V 10 CAP T amp R RAD 2FLM 10 INT LOCKWASHER 100N 250V 10 CAP BLK RAD POLY FLM DPDT MINI SW PCMT V TOG ON ON ON 1U 63V 5 CAP RAD 2FLM DPDT TOGGLE SW MINI ON OFF ON _10U 160V 20 CAP 10X13MM EL SPDT SW QUIK 180 AC PWR BL BL 22U 50V 20 T amp R 6X7MM 2EL
10. EE LAYOUT DIAGRAM N M1423 PRODUCTION NOTES 1 Screw U1 directly to using 1x YS 8799 2 Apply RTV to C13 C14 C15 C16 C26 C34 C36 C41 3 KEYWAY OF S1 AND S5 MUST FACE ARROW ON SILKSCREEN 4 HARDWARE FOR 6549 amp 6559 MUST BE ASSEMBLED IN ORDER INDICATED IN ASSEMBLY DRAWING 5 R4 100 6588 IS HAND INSERTED 6 WHEN USING THE CH1343 NA TRANSFORMER THE TRANSFORMER S MOLEX CONNECTOR MUST BE MODIFIED AS SHOWN HERE ASSEMBLY OF 6549 SPDT AND 6559 DPDT WITH Z1295 AND NUTS AND WASHERS 6559 DPDT SWITCH CUT THIS WIRE FLUSH WITH THE HOUSING THIS TRIMMED CORNER OF 21295 SHOULD CLOSE LABELED TABS NUT WITH DOUBLE SIDE CHAMFER INSIDE TEETH WASHEI CHASSIS FRONT PLATE KEYED WASHER NUT WITH ONE SIDE CHAMFER INSERT THE PRE CRI THE EXISTING WHITE A 7 FOR CE OPERATION WITH A CH1343U USE ADAPTER PATCH CABLE YS 3088 BETWEEN THE TRANSFORMER AND IF A PATCH CABLE IS NOT AVAILABLE THE POWER SWITCH PCB CAN BE MODIFIED AS BELOW THESE TWO CUT JUMPERS AT BOTH ENDS 5 SEE PRODUCTION MOD MODEL EB DATE Em DESCRIPTION OF CHANGE 1i PC8221 4160 new AC pattern 4646 update GG V PC8264 Change R4 4776 with 6588 hand insert GG Doreen V03 rese RETAPED AC PLUG AREA FOR CH1343 E U M1423 PCB DATABASE HISTORY MODEL S MODEL apare vERe DESCRPTONGFGHANGE
11. ICATION SEE PCB LAYOUT PDF FOR DETAILS NOT APPLICABLE TRANSFORMER PLUGS DIRECTLY INTO PCB NOT APPLICABLE TRANSFORMER PLUGS DIRECTLY INTO PCB USE ADAPTER PATCH CABLE 5 3088 SEE LAYOUT PDF FOR CE MODIFICATION IF NO PATCH CABLE IS AVAILABLE POWER TRANSFORMER REFERENCE TABLE MAINS OPERATING VOLTAGE TX YSPART NA 120V CE 220V CH1343 CH1343U SHOWN BLACK 50V 16AWG H IGND gt GRN W4 YELLOW x3 FOR CE CUT X1 amp AND WIRE W3 C to W3 E BLUE WHITE C8 PK jour hisk tour l GND HOON Z 024 psov 411Vdc 410Vdc 352Vdc 302Vdc 279Vdc L1 A D1 SCRN nog SPUT R27 PRE R28 1 _ T 11 007 Le 1 0W Le 1 0W 4007 3500mH 10K0 15 15 3 W2 A 4077 4007 m NT ET bo 4007 uU Cig 21615 C16 C36 00V 50V 450V sov 50 x 2 2 8 D2 SEC L p 4007 GND GND GND 8 2 C 30 3Vdc R63 1 0W 47R 1 9 24 9Vdc 29 28Vac 35Vdc 57 56 2 24V XF P2 LV SEC p 1 0W 5 0W 4007 47R 38R 4 D12 4 700 700 200 C37 C34 C41 C35 HOON 4007 3V 3V 5V V2 C VIC 22 2X TRIODE HCT 2X TRIODE HCT 7 2 D10 Voltage Voltage D9 _ 1 Eas pou FIL Lef Voltage Voltage R30 PENTOD Zhor V4 2 V5 2 6 3Vac GND 5 t Product Ir
12. N ENLEVEZ PAS LE COUVERT OU LE PANNEAU ARRIERE NE CONTIENT AUCUNE PIECE REPARABLE PAR L UTILISATEUR CONSULTEZ UN TECHNICIEN QUALIFIE POUR CE PRODUIT EST POUR L USAGE L INT REUR SEULEMENT Veuillez Lire le Manuel Il contient des informations qui devraient tres comprises avant l op ration de votre appareil Conservez Gardez S V P ces instructions pour consultations ult rieures et observez tous les avertissements Nettoyez seulement avec le tissu sec Emballage Conservez la boite au cas ou l appareil devait tre retourner pour r paration Avertissement Pour r duire le risque de feu ou la d charge lectrique n exposez pas cet appareil la pluie ou l humidit N utilisez pas cet appareil pr s de l eau Attention Lors de l utilisation de produits lectrique assurez vous d adh rer des pr cautions de bases incluant celle qui suivent Alimentation L appareil ne doit tre branch qu une source d alimentation correspondant au voltage sp cifi dans le manuel ou tel qu indiqu sur l appareil Cet appareil est quip d une prise d alimentation polaris e Ne pas utiliser cet appareil avec un cordon de raccordement moins qu il soit possible d ins rer compl tement les trois lames Des pr cautions doivent tres prises afin d eviter que le syst me de mise la terre de l appareil ne soit d sengag Un appareil construit selon les normes de CLASS I devrait tre raccord une pri
13. N BEAK 6 32 THUMB SCREW ALUMINUM 8 3 18 SJT AC LINE CORD REMOVABLE 6 32 KEPS NUT ZINC 6 32 PEMNUT 22AWG STRAN TC WIR JMP 2 0 W 1R 5 WIREWND T amp R RES 5 0W 33R 5 BLK RES OW 47R 5 T amp R RES I4W 478 5 T amp R RES I4W 100R 5 T amp R RES 4W 680R 5 T amp R RES 7 0W 7509 5 STANDOFF BLK RES 4W 820R 5 T amp R RES 2 0W 1K 10 BLK RES IAN 1K 5 T amp R RES JAN 1 5 5 T amp R RES 4 1K54 1 T amp T RES 2K 5 T amp R RES 4 2K2 5 T amp R RES 4W 10K 5 T amp R RES 0W 10K0 5 T amp R RES I4W 15K 5 RES 0W 15K 5 RES 4 22K 5 RES I4W 36K 5 RES I4W 56K 5 RES R R R R R R 4W 68K 5 RES 4W 82K 5 R RES 4W 100K 5 T amp R RES e NI NINI OT IND OO 2W 100K 5 BLK RES
14. h one wider than the other A grounding type plug has two blades and a third grounding prong The wide blade or the third prong are provided for your safety If the provided plug does not fit into your outlet consult an electrician for replacement of the obsolete outlet The AC supply cord should be routed so that it is unlikely that it will be damaged Protect the power cord from being walked on or pinched particularly at plugs If the AC supply cord is damaged DO NOT OPERATE THE UNIT To completely disconnect this apparatus from the AC Mains disconnect the power supply cord plug from the AC receptacle The mains plug of the power supply cord shall remain readily operable Unplug this apparatus during lightning storms or when unused for long periods of time Service The unit should be serviced only by qualified service personnel Servicing is required when the apparatus has been damaged in any way such as power supply cord or plug is damaged liquid has been spilled or objects have fallen into the apparatus the apparatus has been exposed to rain or moisture does not operate normally or has been dropped d instructions importantes dans la litt rature accompag nant l appareil en ce qui concerne l op ration et la maintenance de cet appareil LA s21254 SUIVEZ TOUTES LES INSTRUCTIONS Instructions relatives au risque de feu choc lectrique ou blessures aux personnes AVIS AFIN DE REDUIRE LES RISQUE DE CHOC ELECTRIQUE
15. iodes Service Consultez un technicien qualifi pour l entretien de votre appareil L entretien est n cessaire quand l appareil a t endommag de quelque fa on que se soit Par exemple 5 cordon d alimentation ou la prise du cordon sont endommag s si il y a eu du liquide qui a t renvers l int rieur ou des objets sont tomb s dans l appareil si l appareil a t expos la pluie ou l humidit si il ne fonctionne pas normalement ou a t chapp safety 4v8 April 14 2011
16. onHorse DH40H FIL 4007 R53 1 4W In FIXED BIAS mode with no signal adjust BIAS trim P5 until voltage measures 45mV each across R1 and R2 R43 R51 36K R52 1 4W 1 4W 2K2 63V 174W NEG BAS 22K 8 _ RE 4 Ro o ON 92 power supply PCB M1423 Sheet 2 of 3 Date Tue Feb 28 2012 Rev V03 YsType Filename M1423V03sch sch2006 680R R60 Poweramp In R31 R30 M1423V01 M1423V01 Ri b Fop Asg Peb 6 1 54 1008 z Filaments SPDT TOGGLE 81 6549 POWER R50 R25 D3 14 10K 2348 Pots Switching an 75 2 2 R11 56K xja 100K R22 R23 330K RELAY 1 se o R24 8 Output X D14 TP3 4148 6559 STBY DPDT TOGGLE F Primary R45 To LEDs
17. qu s d une symbole d clair sont des parties dangereuses au toucher et que les c blages ext rieurs connect s ces dispositifs de connection ext rieure doivent tre effectiv s par un op rateur form ou en utilisant des cordons d j pr par s Cordon d Alimentation Ne pas enlever le dispositif de s curit sur la prise polaris e ou la prise avec tige de mise la masse du cordon d alimentation Une prise polaris e dispose de deux lames dont une plus large que l autre Une prise avec tige de mise la masse dispose de deux lames en plus d une troisi me tige qui connecte la masse La lame plus large ou la tige de mise la masse est pr vu pour votre s curit La prise murale est d su te si elle n est pas concue pour accepter ce type de prise avec dispositif de s curit Dans Ce Cas contactez un lectricien pour faire remplacer la prise murale Evitez le cordon d alimentation Prot gez le cordon d alimentation Assurez vous qu on ne marche pas dessus et qu on ne le pince pas en particulier aux prises N UTILISEZ PAS L APPAREIL si le cordon d alimentation est endommag Pour d brancher compl tement cet appareil de l alimentation CA principale d connectez le cordon d alimentation de la prise d alimentation murale Le cordon d alimentation du bloc d alimentation de l appareil doit demeurer pleinement fonctionnel D branchez cet appareil durant les orages ou si inutilis pendant de longues p r
18. se murale d alimentation avec connexion intacte de mise la masse Lorsqu une prise de branchement ou un coupleur d appareils est utilis e comme dispositif de d branchement ce dispositif de d branchement devra demeurer pleinement fonctionnel avec raccordement la masse Risque Ne pas placer cet appareil sur un chariot un support un tr pied ou une table instables L appareil pourrait tomber et blesser quelqu un ou subir des dommages importants Utiliser seulement un chariot un support un tr pied ou une table recommand s par le fabricant ou vendus avec le produit Suivre les instructions du fabricant pour installer l appareil et utiliser les accessoires recommand s par le fabricant Utilisez seulement les attachements accessoires indiqu s par le fabricant Note L utilisation prolong e des couteurs un volume lev peut avoir des cons quences n fastes sur la sant sur vos oreilles Il convient de ne pas placer sur l appareil de sources de flammes nues telles que des bougies allum es L appeil ne doit pas tre expos des gouttements d eau ou des claboussures et qu aucun objet rempli de liquide tel que des vases ne doit tre plac sur l appareil Assurez que lappareil est fourni de la propre ventilation Ne proc dez pas l installation pr s de source de chaleur tels que radiateurs registre de chaleur fours ou autres appareils incluant les amplificateurs qui produisent de la chaleur Les dispositifs mar
19. ve earthing ground Where the MAINS plug or an appliance coupler is used as the disconnect device the disconnect device shall remain readily operable Hazards Do not place this product on an unstable cart stand tripod bracket or table The product may fall causing serious personal injury and serious damage to the product Use only with cart stand tripod bracket or table recommended by the manufacturer or sold with the product Follow the manufacturer s instructions when installing the product and use mounting accessories recommended by the manufacturer Only use attachments accessories specified by the manufacturer Note Prolonged use of headphones at a high volume may cause health damage on your ears The apparatus should not be exposed to dripping or splashing water no objects filled with liquids should be placed on the apparatus Terminals marked with the lightning bolt are hazardous live the external wiring connected to these terminals require installation by an instructed person or the use of ready made leads or cords Ensure that proper ventilation is provided around the appliance Do not install near any heat sources such as radiators heat registers stoves or other apparatus including amplifiers that produce heat No naked flame sources such as lighted candles should be placed on the apparatus Power Cord Do not defeat the safety purpose of the polarized or grounding type plug A polarized plug has two blades wit
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