Pioneer-SD1100-disp-sm电路图 维修手册.pdf

Snouice%ouun/ 4-CHAI.NEL STEREO DISPLAY sD- 1 1 oo/rw RadioFans.CN 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库 12.3 V. H. amp unit 12.4 Complex unit 12.5 AF OSC unit 12.6 Power supply unit 12.7 Volume unit 12.8 Power supply unit 42 46 52 58 61 62 S RadioFans.CN 收音机爱 好者资料库 3. REAR PANEL FACILITIES sEl-lloo LOW/HtcH SELECTOR SWTTCH Selects low (pin jack) and high(binding post) audio inputs. ln position HIGH , signals are attenuated by -20dB when compared with LOW AC OUTLETS Not switched on and off by the units pow6r switch. FRONT and REAR channels input level control for 4 channel display. FACTORY-ADJ USTED Re-adjusting not normally required. LOW LEVEL INPUTS GND HOT 6 6 il6:E 6 iE (CH !a)I I -Ef! n*orno #. IINE VOLTAGE SELECTOR = .Fggl E OUT 4590I 35 3. 4.4 FREOUENCY RESPONSE OBSERVATIO (Fig. 6, 7) 1. Connections and settings are the salne as in 4-2. (AUDIO FREQUENCY OSCIL- LATOR steps 1 to 5) 2. Set the SWEEP RANGE selector to posi- tion AF SWEEP. Adjust length and vertical position of the vertical luminous line with the VERT GAIN and VERT POSITION controls, respectively. Set the OSCILLATOR FREQUENCY con- trol at position 2OHz. Move the luminous line to position 20 on the CRT screen with the HORIZ POSITION control. Now set the OSCILLATOR FREQUENCY at ZOkHz. Adjust the HORIZ GAIN control so that the luminous line moves to position 20k on the CRT screen. Repeat steps 4 to 7 so that the luminous line will be at CRT screen marking 20 for ZQHz, at CRT screen marking 20k for 2OkHz. Now turn the OSCLLATOR FREQUEN- CY control to position SWEEP AUTO. The vertical luminous line now moves slowly from left (20) to right (20k) on the screen. Fis.6 4. 5. 6. 7. 8. 9. 10. igl EF,-.*S .Y, lvl o:=sE Htr-qo-=6F9.:3l =l -e-l ,- :oi rel 10 Fig.7 4.5 4 CHANNEL STEREO DISPLAY (Figs. 8, 9) 1. Connect the OSCILLATOR OUT?UT to the LOW LEVEL INPUT jack CH 1 on the rear panel. 2. Set the LOW/HIGH selector to position LOW. 3. Set the FUNCTION switch to position 4CH DISPLAY. 4. Turn the OSCILLATOR FREQUENCY control to approximately center position (between 100 and 1k). Also turn the OSCILLATOR LEVEL control to ap- proximately center. 5. Set the FRONT-REAR selector switch at REAR. 6. Push theWAVEFORJVI & DISPLAYswitch No. 1. 7. Set the LEVEL METER switch at 0dB. 8. Tun the FRONT side of 4 CH DISPLAY VOLIIME control (on the rear panel) to about center. 9. Fine-adjust the OSCILLATOR LEVEL control to obtain a -20d8 meter reading. Then turn the LEVEL METER, switch to -20d8 and readjust the OSCILLATOR LEVEL control to obtain exactly OdB on the meter. t5816t4l3 Fig. 8 strl-lloo Turn the VERT and HORIZ GAIN con- trols fully counterclockwise to obtain a luminous spot on the CRT screen. Move this spot to the screen center with the VERT and HORIZ POSITION con- trols. Adjust the VERT and HORIZ GAIN con- trols to obtain a pattern (Iine approx 20mm) as shown in Fig. 9-(a). Change the input connection to CH 3 on the rear panel. You should now obtain a pattern as in Fig. e-(b). Now change the input connection to CH 2 to obtain a pattern as in Fig. g-(c). Readjust the 4 CH DISPLAY VOLUME control (REAR knob only) to obtain a line approx. 20mm in length. Change the input connection to CH 4. A pattern as in Fig. g-(d) should appear. (c) Fis.9 11 10. 11. t2. 13. t4. 15. 16. qF O O .= l=E I : l-A=I.x-.oc ao o $l -ao- .aeJ -3 oFJ 6 o6iql .dl. r(Eh 9999 -B -10 -.cl / ?o n1k zok . :ifl7 r I n an _t hFffi):l L-aoV I 1-eo-l Laall ae-l 1. . 3. 4. 7. ALIGNMENT PROCEDURE 7.1 ZERO AXIS POStTtOt (Fig. 2e) 1. Trrn both VERT and HORIZ GAIN controls to minimum. 2. Trrn both VERT and HORIZ POSI- TION knobs to center. 3. Turn VRz (V) and VR4 (H) on the pCB unit (AWX-032) to center of rotation range. 4. Adjust VR1 to obtain 0V between ter- minals 8 and 9. 5. Adjust VR3 to obtain 0V between ter- minals 5 and 6. 7.2 AMPLITUDE SENSITIVITY ADJUSTMENT . V. Amplifier Apply a 28mV rms lkHz sine signal to INPUT 1 (VERT) on the front panel. Trrn VERT GAIN control to maximum, HOPIZ GAIN control to minimum. Adjust VR2 on V amp PCB (AWX-092) to obtain a straight line of 40mm length. Adjust VR3 (horizontal position) and VRl (vertical position) so that line is centered as shown in Fig. 80. AWX-032 Fig.29 strl-lloo o H. Amplifier 1. Apply same input signal as described in V. AMPLIFIER to INPUT 3 (HORIZ) on front panel. 2. Turn VERT GAIN control to minimum, HOF-IZ GAIN control to maximum. 3. Adjust VR4 to obtain a 40mm long line. 4. Adjust VR1 and VRg so that line is centered as shown in Fig. 31. . Final Checks 1. Apply input signal as mentioned above to INPUT 3. Trrn both HORIZ and VERT GAIN eontrols to maximum. 2. Line should be as shown in Fig. 32. 3. If necessary, adjust VRz and VR4 to obtain line. 23 O Q,O OQ, OQ. - u*, ut. l-lj-Al =9- l( Ee. o h1/l - ltA.ll E8 E oa .l ? ffinE -E E/.O uQ, E q. 7-S E6 E -zJotu - u, o It .Jr o Qoo oQ,. oe. ffin =o Fig.30 I I I PIGINEEFI ELECTFIGINIC Cc,FIPclFIATIclN 1 5-5, 4-Chorne, Ohrnoni-nishi, Ohta-ku, Tokyo, Japan U.Si. PIONEEFI ELECTFIGNICS CG,FIPOFIATIGIN 178 Cornrnence Fload, Canlstadt New Jensey O7O72 U.S.A. PIoNEEFI ELECTFIONIC (EIJFIOPE) N.V. Meir._centen, Mein 21, 2OOo Antwenp Elelgiurn COPYRIGHT O AUG. 1972 PRINTED IN JAPAN