Rane TTM 56 Mixer Schematics 电路图.pdf
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1、SERVICE BULLETIN UNIT IN QUESTION: TTM 56 AREA CONCERNED: No Contact Magnetic Fader. (Field inspection and maintenance.) The TTM 56 uses our proprietary magnetic fader, utilizing hall sensors. Since the fader is a primary area of tampering for customers, it is important to understand what is happeni
2、ng and how to assure correct function during service or repairs. Pictured below are the two sensors, support rods and carrier. The most important item to confirm is the proximity of the hall sensors to the carrier. The correct distance is about the same thickness as the PCB minimum 0.062. If the dis
3、tance is too great (i.e. the sensor has been pushed away from the center of the fader, which commonly happens during cleaning and lubrication, the symptom is typically “bleeds” with slow contour, and failure to turn off with fast contour. This is due to the magnet not coming close enough to the sens
4、or for maximum attenuation. Gently tilt the sensor towards the center of the fader mechanism. Leaning a bit too far inwards is better than the reverse, as it ensures complete turn-off of the fader when using fast contour. Once the alignment of the sensors has been addressed, clean the two stainless
5、steel rods using a piece of newspaper wrapped around them. Loop the cloth around each rod and polish just as if shining a shoe, but upside down. The newspaper will pick up dust and contaminants from the rods and is easy to use. For stubborn deposits or in situations where the customer has thoroughly
6、 contaminated the rods with foreign matter, isopropyl alcohol applied with a Q-tip works well to cleanse the assembly. When all cleaning has been completed a drop of light machine oil should be applied to the support rod only (not the one the torsion-spring rubs against.) Just about any oil with a v
7、iscosity of 20W will work, but we recommend pure silicone lubricant. Rane does not provide lubricants or cleaners. 07-03-02 rev 1.1 CD RadioFans.CN 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库 H:TTM56105783-1.SCH14-Feb-2002 CHECKED BY:DRAWN BY: SHEET:10802 47th Avenue West Mukilteo WA 98275-50981 6 INPUT/OUTP
8、UT TTM56 105783 of ACTION: GNDGNDGND GND GND GND GND GNDGNDGND GND GND GND GND PHONO 1 LEFT LINE 1 LEFT PGM 1 LEFT PGM 1 RIGHT PHONO 1 RIGHT LINE 1 RIGHT 1 2 TOP L J44A 4-STA 3 4 TOP R J44B 4-STA 6 BOT R J44D 4-STA 5 BOT L J44C 4-STA R26 47.5K R33 162 R37 90.9K R43 7.5K R47 20K R48 20K R27 47.5K R34
9、 162 R38 90.9K R44 7.5K R49 20K R50 20K C1 22/25V C54 150PF C63 47PF C90 0.033 C101 0.01 L1 3T 3 2 1 84 Z1A 4580 C2 22/25V C55 150PF C64 47PF C91 0.033 C102 0.01 L2 3T 5 6 7 Z1B4580 C3 22/25V C4 22/25V +15 -15 3 2 1 84 Z2A MC33078 R95 10K R96 10K R97 10K R98 10K +15 -15 GND GND . C121 EMI C65 47PF G
10、ND 5 6 7 Z2BMC33078 R99 10K R100 10K R101 10K R102 10K GND GND . C122 EMI C66 47PF GND GNDGNDGND GND GND GND GND GNDGNDGND GND GND GND GND PHONO 2 LEFT LINE 2 LEFT PGM 2 LEFT PGM 2 RIGHT PHONO 2 RIGHT LINE 2 RIGHT 3 4 TOP R J2B 4-STA 1 2 TOP L J2A 4-STA 6 BOT R J2D 4-STA 5 BOT L J2C 4-STA R28 47.5K
11、R35 162 R39 90.9K R45 7.5K R51 20K R52 20K R29 47.5K R36 162 R40 90.9K R46 7.5K R53 20K R54 20K C5 22/25V C56 150PF C67 47PF C92 0.033 C103 0.01 L3 3T 3 2 1 84 Z3A4580 C6 22/25V C57 150PF C68 47PF C93 0.033 C104 0.01 L4 3T 5 6 7 Z3B4580 C7 22/25V C8 22/25V +15 -15 3 2 1 84 Z4AMC33078 R103 10K R104 1
12、0K R105 10K R106 10K +15 -15 GND GND . C123 EMI C69 47PF GND 5 6 7 Z4B MC33078 R107 10K R108 10K R109 10K R110 10K GND GND . C124 EMI C70 47PF GND C9 22/25V R55 20K GND R200 150 R201 150 C132 330PF GNDGND C10 22/25V R56 20K GND R202 150 R203 150 C133 330PF GND LEFT AUX OUTPUT RIGHT AUX OUTPUT R210 5
13、1.1 R211 51.1 R212 51.1 R213 51.1 C137 220PF C138 220PF C71 47PF R218 5.11K R219 5.11K 8 3 2 1 4 Z8A MC33078 J7A 1/4 GND LEFT MASTER OUTPUT GND 3 2 TOP J8A 2-STA GND C11 22/25V R57 20K GND R204 150 R205 150 C134 330PF GND LEFT UN-BAL R214 51.1 R215 51.1 R216 51.1 R217 51.1 C139 220PF C140 220PF C72
14、47PF R220 5.11K R221 5.11K 5 6 7 Z8BMC33078 J7B 1/4 GND RIGHT MASTER OUTPUT GND 1 BOT J8B 2-STA C12 22/25V R58 20K GND R206 150 R207 150 C135 330PF GND RIGHT UN-BAL . C125 EMI . C126 EMI GND J3A 1/4 MIC INPUT C13 22/25V J3B 1/4 R208 150 R209 150 C136 330PF GND . C127 EMI GND GND C14 22/25V R59 20K G
15、ND MIC EFFECTS TIP SEND RING RETURN 3 2 1 84 Z5AMC33078 R111 10K R112 10K R113 10K R114 10K +15 -15 GND GND C15 22/25V . C128 EMI C73 47PF 5 6 7 Z5BMC33078 R115 10K R116 10K R117 10K R118 10K GND GND C16 22/25V . C129 EMI C74 47PF GND GND GND LEFT RIGHT AUX INPUT TONE 105783-3.SCH VCA MIX 105783-4.S
16、CH +15 -15 3 J35C 1 J35A 4 J35D 5 J35E LN 1R PH 1R LN 1L PH 1L 2 J35B 6 J35F 3 J36C 1 J36A 4 J36D 5 J36E LN 2R PH 2R LN 2L PH 2L 2 J36B 6 J36F R222 5.11K R223 5.11K R224 5.11K R225 5.11K R240 2.49K R241 2.49K MODE 1 MODE 2 REVERSE GND +5 TO METER PCB J6 TRS GND HEADPHONE 3 4 TOP R J4B 4-STA 6 BOT R
17、J4D 4-STA 1 2 TOP L J4A 4-STA 5 BOT L J4C 4-STA RJ BOTTOM PCB 1 J12A 2 J12B 3 J12C 4 J12D 5 J12E 7 J12G 9 J12I 12 J12L 11 J12K 13 J12M 14 J12N 15 J12O 15 J32O PGM 1L 16 J32P PGM 1R 14 J32N PGM 2L 12 J32L PGM 2R 13 J32M MIC + 11 J32K MIC - 2 J32B MIC SND 8 J32H 9 J32I 5 J32E AUX L 3 J32C AUX R 6 J32F
18、 4 J32D+15 15 J34O MASTER OR 16 J34P MASTER OL 13 J34M AUX OL 11 J34K AUX OR 9 J34I PHONES L 7 J34G PHONES R 1J34A MASTER R 3J34C MASTER L PGM1_L PGM1_R SH. 4 SH. 4 PGM2_L PGM2_R SH. 4 SH. 4 4 J34D 2 J34B 16 J12P + C117 100/25V + C118 100/25V + C119 100/25V + C120 100/25V MIC RTNSH. 4 MONO PGM1 MAST
19、ER RIGHT MODE 1 MODE 2 REVERSE MASTER LEFT MONO PGM2 10 J32J 5 J34E 6 J34F 8 J34H 1 J45A 1 J46A 3 J45C 3 J46C TOP CONTROL 105783-2.SCH DIGITAL 105783-5.SCH METER/PGM CONTOUR 105783-6.SCH 3 2 1 84 Z19A TL072 5 6 7 Z19BTL072 +15 -15 R411 10K GND GND SH. 2 SH. 2 SH. 2 SH. 2 SH.2 SH. 2 SH. 2 SH. 5 SH. 5
20、 SH. 5 SH. 2 SH. 2 SH. 2 SH. 2 SH. 2 SH. 2 SH. 6 SH. 2 SH. 2 SH. 2 SH. 2 NO CHANGE TO THIS SHEET 1/25/02 RWJ RadioFans.CN 收音机爱 好者资料库 H:TTM56105783-2.SCH14-Feb-2002 CHECKED BY:DRAWN BY: SHEET:10802 47th Avenue West Mukilteo WA 98275-50982 6 TOP CONTROL TTM56 105783 of ACTION: GND GND PGM 1 LEFT PGM 1
21、 RIGHT C17 22/25V 5 46 R2B 20KB GND 2 13 R2A 20KB GND R226 5.11K C75 47PF R255 30.1K R256 30.1KR283 100K C76 47PF GND 5 46 R4B 20KB GND left C141 4.7/25V GND GND C18 22/25V R227 5.11K C77 47PF R257 30.1K R258 30.1K R284 100K C78 47PF GND 2 13 R4A 20KB GND left C143 4.7/25V GND GND PGM 2 LEFT PGM 2 R
22、IGHTPGM 2 SOURCE C19 22/25V 5 46 R3B 20KB GND 2 13 R3A 20KB GND R228 5.11K C79 47PF R259 30.1K R260 30.1K R285 100K C80 47PF GND 5 46 R5B 20KB GND left C145 4.7/25V GND GND C20 22/25V R229 5.11K C81 47PF R261 30.1K R262 30.1K R286 100K C82 47PF GND 2 13 R5A 20KB GND left C147 4.7/25V 1 2 3 S2A 2P2T
23、C21 22/25V R60 20K GND C22 22/25V R61 20K GND 4 5 6 S2B 2P2T C23 22/25V R62 20K GND C24 22/25V R63 20K GND 4 5 6 S15B 2P2T C25 22/25V R64 20K GND C26 22/25V R65 20K GND 1 2 3 S15A 2P2T C27 22/25V R66 20K GND C28 22/25V R67 20K GND D1 LS4148 R119 10K R120 10K R296 26.7K R248 22.1K D6 R R287 100K R297
24、 4.02K 8 3 2 1 4 Z20A TL072 +15 -15 GND GND MIC OL C58 150PF GND C150 0.0047 C151 0.047 R306 3.01K R307 3.01K R308 6.81K R309 6.81K R310 6.81K HIGH LOW 2 13 R8A 20KB 2 13 R9A 20KB D2 LS4148 C152 0.1 5 6 7 Z18B MC33078 8 3 2 1 4 Z18AMC33078 5 46 R7B 20KB GND +15 -15 5 6 7 Z20B TL072 MIC LEVEL 8 3 2 1
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