Schematic Diagram; General - Nakamichi IA-2 Service Manual

CONTENTS
Ts: (Getieralss 3h 635 ee fi es ee he eh aha patie eee esa ee ote Oks Sia) sha oie BO a 6 Le eb ed Seago eee te 8S 1
2. Removal Procedures .........0 0000s evecceeaae ep die GAM edna tarp ta ew tea Sieh co BER eee Seve a ded Baba bc ee 3
2... ok, Top COVERS «ices sfeicelt aia ya tng ae be acter RS faye ecst B ok le ee Botta ar Be Oe Ode dela, Beta oie ard dea ood otras 8 3
2. 2. Bottom: Cover. Ass'y. 6.5. gc whee ek ah rete ge ce ese et oD Be a WSS 2 ne Wea aden aes Suk: See ees 3
2. 3. Pront:Pariel Aggy 205 s5 ise cite cide sn tee ire ret id ack GN Boobs, SESE, aslo lay foie te al vas 8 BRYON -calplce Gor ce We wiceus. @ uk eS 3
3. Parts Location for Electrical Adjustment... . 0.0... ee ee tee ete ee teen ens 4
4., ~ Electrical Adjustment: ooo isde: 22s ane aw acetinndiee deeb al eee, os Se Slee eens, 88, Ble eee dae Spy er wales Sere eal ate 4
5. Mechanism Ass'y and Parts List... 0... 0... fe ee ee ete ee ee ee ee eee ee ee ees 5
5. 1. Synthesis > <2 <co:e-cGf fog on bab te tats eats ceeds ws eae, Cee Lan at arta nang Haile arate: yaa ce oat Add eee Sesees az 5
5. 2. Front'Panel :Ass'y' (AOD). ice. o.c-o.6 ste seven eee aol baa ky of gh We ws ace Bae a oa 0G J Gees 7
5. 3. Front Chassis: Assy. (A022) ecicoco-5:o ectin bdo Wb hte es be BS He anne tele ee Se os BOLO gi a ea eee wD eeaae 7
5 4, Heat: Sink Assy cco etec Ss eersee Merge eS Whig ol Bes Baga e teed a0 lore, Nya iat alte ecebe Si Meer gate ayes EM ss 8
6. Mounting Diagrams and Parts List .........0 2.0... cece cee eee ee eee eee eee eee eee 9
6. 1. AC. Outlet P:C:B:-Ass'y- cence pies nae Pep ee rd Sls aes eee 8: Sh eta aided! Soa etree navieneel oh 9
6. 2 Power Switch:P:C. Bi Ass ty jas eee lok Aw he a a asia nies Be pes hed aie a be Aug ena Ses 9
6. 3 Volume LED P.C.B:.Ass'y oon. 68S bh ee tee ea ees ee ew ge baa Da Sw ea eee 9
6. 4 Headphone P.C:BisAss?y s. .cs./o05:euce. 8 tek aie deed ce, deyilca 56) 5 fat ar earte EETES eee Soba Wo RE Ba bead 9
6. 5. Speaker Switch: P:C:B. Assy. 6c. 5.5055 Sa Ke ae se 8. Seed cone es acters eebuiws Se bi tectece Be Miedo, Sei er gua ene ves 10
6. 6. Remote-P:C:B:2Ass¥ 5 oie sec leek sore cade Sees Ws Bie Mela Bah Ss Pete Cle ass Be BARES a Reed arins ate Soh gear gansta) 10
6. 7 Sensor: P.C.B. Ass. xicesecc ja re, tied we he etece eh Me, Red SDS wd an ial wade lees acer sathe | Sua a Levarecarte aban we SEES 10
6. 8 Volume:A'P.C:BiASe? 9) os oo ccd eedbive bods, Subcdicd es odie le Saale Oe tee Ba 84 eo ain eee 10
6. 9. Speaker Terminal P.C.B. Ass'y 2... 0... 2. ccc ce cee ee ee et eee eet eee een tenes 10
6. 10. Power Supply P.C.B. Ass'y .. 0... ccc ee ee ee tee eee ee eee eee et eee eee 11
6. 11. Eq@.:Amps PC. Bi Ass ye: osecs itso tote dusk ole SERIR acct Shia We tirsne asta SE eS Sin: Wide Sea yeice a Be va, Sree oh 12
6. 12. Selector: PC: Be Ass') 3 Ssaind cthse ite teva Betcdare. wcabess BAe Viglelat ene Gl Seek Meee & aa eee ere Calan ele 13
6. 13. Power Amp,.P:C.B: Assy 5:56 sete ratte eelec dre ar a care ey Wig Beta asia eal toca a Ree einen b) Sea Laher BTR, apse is, ie 14
6. 14. Front PC: B Ass ty «<<. se5 see sie ee Se Ss he eran ete a wee eS Oia Berea eee ee! Sr a edad wl else 15
7, "Schematic Diagrams «052%: 6.5soj6 5 ce escae elec ia ego a Se Sire oS a ale oe oa Fe SMe lee Sw ale Lea ol Bars Ta Rat Io eae 16
7 1. IC: Block: 'Didgraiis. 0522. sda ek ees ere ooh Shsara ls Sb even Sle Bitar ey ALE EASE OE We oe Burdon ONE eee) as 16
7. 2. Schematic: Diagrams: oc. tsnk. 3) Soleo eave Beco oe ea ae eee eles Rs tah gg oie Sal 20
S.. Wiring Diagram: osc6 bce do seca ta alee Brae ad Has fale: BS! alee ec ee a a See ESA tye EN ake age 23
9... "Block: Diagram: ico oes Ra. 208 SiS ES a aah e BER SE GORD paras io atin ae Sao gts, WAS SS. ele ws Ee! fe ra Sih eet 24
10%» Specifications: 2/6 260%. ec dice-evlae eet ied Sha Ja oe pos RUN eg gee a ESE ae wore cd: Bk BP Wear ma be orators "late ad alts, 25
1. GENERAL
Voltage selector is installed on the Rear Panel of the
Amplifier 2 (Other). The voltage selector can select 110 V,
120 V, 220 V, or 240 V at customer's disposal.