Akai AP-207

Il.
ii.
VI.
VII.
VOI.
SECTION 1
SERVICE MANUAL
TABLE OF CONTENTS
TECHNICAL DATA .. 0.22... eee putt & eegh ses 4
1s -MODELMAP 207 | ete one ote Raa Bh wk wee ee OSE Ai ee oleh, OS 4
2: MODEL CAR BOF casera Jieeela wlaee woe eed HONG Cpe AT alate eletes 4
DISMANTLING OF UNIT... 1.0 ee ee ene 5
CONTROES » Gees acceso has ebm Ses a Sere a Gy etes BME sg OH MLR So Be Shae 6
1. MODEL: AP-207 i356 /c bi ate aid ae es eh Eevee at oe ed anaes 6
2 MODEEVAP-3O7 0 3 bles eed oe BASE a Meee emp ae ese Lee Re 7
PRINCIPAL PARTS LOCATION .......... hs aa Lhd ithe: yang ca Mesiaie ae 8
Le (MODEG.AP-207) copa ed ee Pete eek eae Bae SA s Bes 8
22 MODEL. APIS O07: 22s sc¢8 tla hee ihe og HOS oP Vee oa eee eres 8
BLOCK DIAGRAM .. 1... 0.6 en tee eee eens 9
Le: MODDED AP2207 iieic gale 2 age ere oh US oe ees Ba ee ee eee 9°
2. MODEEAP-307) «ence oe cog CMa Pe Ve bbe see ee ee 9
CIRCUIT OPERATION . 00.1. eee eee eens 10
Pe GENERATS 250.628 oi ngechee to aie nethnd. salar eos nee aap oe eke Mae tea aed 10
2. SERVO CIRCUIT 4 a2.ac naa sping wee ane tides Saw palatine 10
3. STROBE LIGHT CIRCUIT .. 0.0... ce ee eee 11
MECHANICAL ADJUSTMENT ...... 0... cee cee eee eee 12
1. STYLUS PRESSURE ADJUSTMENT ....... 2.0.00 cece eee eeee 12
2. OVERHANG ADJUSTMENT .. 1.0... ec eee 13
3. SLEEVE POSITION ADJUSTMENT .. 1.2.0... 00... eee eee eee eee 14
4, ARM LIFTER HEIGHT ADJUSTMENT .........0.. 00.00 -eeeee 14
5, AUTOMATIC ARM CONTROL ADJUSTMENT ...........-..--5.- 15
ELECTRICAL ADJUSTMENT .... 1.0... cee ee ee eens Le. 16
1, DIRECT DRIVE P.C BOARD ADJUSTMENT ...............4-. . 16
2. PLL P.C BOARD ADJUSTMENT ........ Piossatlel eh cate ya lon de sec ah? oeaatea ea hha _ 17
CLASSIFICATION OF VARIOUS P.C BOARDS ...........00 2 eee 19
1, P.C BOARD TITLE AND IDENTIFICATION NUMBER ............ 19
2. COMPOSITION OF VARIOUS P.C BOARDS ..............0-.0055 . 20