Pioneer TX-600, Service Manual

Page 1: ... R42 lsa O t l iii Seraicp l AM FM STEREO TUNER TX 600 I l n I I it I i rJIONEEIiI ...

Page 2: ...pe and Center Tun rng type Muting Switchable to ON OFF Stereo Separation More than 40 dB 1 kHz Sub Carrier Suppression More than 35 dB Noise Filter Switchable to ON OFF Output Voltage Controllable from 80mV 10 2 4V 100 Mod Antenna I nput 300 2 balanced 75 2 unbalanced Multipath Terminals Vertical and Horizontal AM TUNER SECTION Frequency Range 525k z to 1 6O5kHz Usable Sensitivity lH F 15 pY Selec...

Page 3: ... and 240V Sw itc h ab le 50 60 H z 25 W Max 1 6 1 5116 l43 mm width 5 1 1 116 l145mm height 13 9 I 1 6 I 345mm depth 17 tb 7 6 ks 21 lb 9 6 ks FM T type Antenna AM Lead Antenna Polysh ing Cloth Pin Plug Connecting Cord Operating I nstructions Specifications and the design subject to modification without notice due to improvements 4 2 1 ...

Page 4: ......

Page 5: ...wing the 38 kHz to be amptified and the stereo signal is not given a time division and therefore the signal is received as a mono signal When the MUTING switch is set to ON the collector of the Q9 is connected to the Q1g and thus when the input fed from the antenna is low the Qo is also T c6clcl turned on Iowering the base voltage of the Q16 to turn it OFF and thus the ratio detected signal does n...

Page 6: ... BOTTOM COVER Remove the ten screws from the bottom plate The bottom plate will now come off Photo 2 3 3 REMOVE THE FRONT PANEL Pull all the control and switches knobs off from the shafts Remove the nuts and washers from the shafts of the POWER switch SELECTOR switch and TUNING knob The front panel will now come off Photo 3 Photo 1 Photo 2 ilr ry Photo llr 1 ffiffi0 ...

Page 7: ...e string on the pulley Wind the string two turns around the dial shaft and tring it up to the pulley 5 T rrn th_e string in the direction at the pulley and bring the string up to the pulley 6 T rrn the string in the direction at the pulley and wind it one and a half turns around the pulley in the direction and Tie the string to the spring as shown by O 7 After the string has been arranged by the a...

Page 8: ...enerator to 60 dB Adjust the FM IFT cores T Tb TO as shown in Fig Z Note When it is difficult to get synchronism of oscilloscope make eonnection between the oscilloscope and sweep generator for easy synchronism refer ing to the operating instructions 8 j Set the output level of sweep generator to 100 dB then keep the top of the pattern flat and check the tuning eenter frequency does not move when ...

Page 9: ...41 4 T tt p T c6cIcI Set the output level of the sweep generator to 40 dB Adjust the AM IFT eores Tg T10 Ttt as shown in Fig g Make the pattern symmetrical with respect to the center coinciding with the peak of the pattern to the oscilloscope pattern LIN EAR ITY Fig 3 S CURVE PATTE R N SYMM ETRY Fig 4 9 d e ANTENNA TERMINALS DUMMY ANTEN NA SWEEP GENERATOR o oo o o o o ooo fo f I fo 6 rloaolo T dC ...

Page 10: ...signal generator and dial pointer of equipment to 106 MHz h Follow the steps below to adjust the adjusting points Tlimmer capacitor CTg Oscillator circuit Tlimmer capacitor CTf Antenna circuit Trimmer capacitor CTZ RF circuit f Repeat the steps f to h several times j After the alignment lock the trimmer capacitor with paint ADJUSTING POINTS ADJUSTING 5 4 CHECKING MUTING FUNCTION a Connect the outp...

Page 11: ...eore to get murimum reading on the meter Tg o Oscillatorcircuit Ferrite loopstick antenna Antenna circuit f Set the condition of the AM signal generator and turning knob to L400 kHz g Observing the output level on the V T V M and adjust the following core to get murimum reading on the meter CTf o o Oscillatorcircuit CT Antenna circuit h Repeatthealignments e to g several times i After the alignmen...

Page 12: ...evel of the L or R signal becomes maximum on the scope OSCILLOSCOPE ADJUSTING POINT 5 7 CHECKING SCA FILTER a Connect the FM signal generator to the FM antenna terrninals b Turn the selector switch to FM AUTO c IVlodulate the FM signal generator con nected to the audio generator check the frequency responsce for the deep dips at around 67 k Jz and 7 2 kHz in the frequency response 5 8 CHECKING STE...

Page 13: ...r rp r tst li g g iE f f E d o oSgil 1 1j ll i ilEii Effil rr fd t gffi fire o t ry f f I 1 MF d8 oo 3 lrillllllll lllllt t AM s8 100 r02 ffiH MHZ t l r il lt g1 92 3t 88 101 100 108 6 3 ro Xtoknz l2 ll0 lE O tro FM MUTING 1 V CN r IONEER STEREO TUNER model TX 6OO I t3 ...

Page 14: ...7 UNPACKING AND PARTS NUMBER STYROTECTOR H1 1 O70 B STYROTECTOR H1 1 O70 B PACKING CASE AHD Ol8 O r4 ...

Page 15: ... t v 9 A o t 3n Hs E S I 6 aA st ool rr3 l zE LU 11 _ g arg I J 1J a F a r o e effi O a E N 6 v1u8t y lv o 9o u s N h lJ h o H nnftion aooti tc tss F Zm fo o6 Er lrj lrj z j l F E J o t E 11 5 E Y E o A Y E g J l z a lrl t t E oz F 6z TL J E o F FE I UJ JiuJ n oo i tr J g1u 7t q g a Erl Si 9cao ot9qr F f g E Fl fr oa 6 R59 HB Y vvv F trostro a a v 2z 54 I 6 t lt o Fl ci 2Q Jb o o o I X z d Lz a o ...

Page 16: ... o o I UJ 3 S F z D E IIJ z f F i I oi o o a N rL zz aetc p 00Losu 0 0 Bsc 1h E o o ro lrJ a et t3 0 0 623 lH I 0 gzu 9 e E t 5 l E I A Lt__ fF 1vv t00rzf I H I AN l 6tu lr tu o o tf lrJ a g JH t0 0 63 rJH I iooze3 C 6 i T YYY M ro A H loll i Wt r ql l 9 4g q f9 lN ll 0 r aU rN N c It Hi a r l to q 3zl faail hr I t0 0 H 0zc r0 0 F Ltx l l0 0 H fl3 r o J N AL Jd iff_rw_ Y lt I Loottt I lr JlJl O I ...

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Page 21: ...O6S cc 1 sI OOOOLu OOO O oo o o oo o totoF rrto ro Yg Y g E F g FEftS l _ xobb xx bx A roK orli J LIJ tlJ tlJ tlJ Y r tiJ OOOOO JOOO J 2 vvv N N rzF CO e 19 OUOOO O J OO oorooo roroNr r rr NNtNxr 9Ct 9Cf ggDSP NN NN o oo oo Y ZlllYV JO J NN l Z Z NNNNN 9CTOF Y Y CDCn Cf ooro6 o ooooo SFF Y r SSsSS NN NNNNN d3sg iaa vyooo vvvvv oooo ooooo ooooo ro r c ro ro ro ooooo ooooo rotororolo l0lotolr lr o C...

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Page 25: ... ctN 15 5 4 Chome Ohmonr nrshr Ohta ku Tokyo Japa IJ S PIclNEEFI ELECTNclNICg CclFIPGIFIATIc N 1 78 Commence Fload Carlsladt New Jensey O7O72 l S A PToNEEFT ELECTnclNTC EUtrOFE N V Noonde laan 83 2O3O Antwenp E elgrum coPYRtGHT JUN 1971 PRINTED lN JAPAN ...