Tascam 302mkII Service Manual Download | Manualshive

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TASCAM 302MKII

GATHER PCB B (EQ-BIAS PCB, ANALOG SW PCB, PHONE PCB)

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Summary of Contents for 302mkII

Page 1: ...LIST 13 5 PC BOARDS AND PARTS LIST 18 6 INCLUDED ACCESSORIES 24 1 2 2 4 3 11 4 13 5 18 6 24 Double Auto Reverse Cassette Deck INSTRUCTIONS FOR SERVICE PERSONNEL BEFORE RETURNING APPLIANCE TO THE CUST...

Page 2: ...T CONTROL 3 5 mm mini jack REMOTE IN FROM RC 322A 2 5 mm mini mini jack Power Requirements USA Canada General Export Model 120 230 V AC 50 60 Hz switchable U K Europe 230 V AC 50 Hz Australia 240 V AC...

Page 3: ...ation Better than 30 dB at 1 kHz Erase Ratio Better than 65 dB at 1 kHz Applicable Electromagnetic Environment E4 Peak Inrush Current 1 2 A Accessories Rack mounting screw kit x 1 In these specificati...

Page 4: ...Load a MTT 111N test tape and play in FWD direction the begining of the test tape 3 Adjust each variable resistor on the MAIN PCB Fig 2 2 to get the following figures Frequency Counter Wow Flutter Met...

Page 5: ...Hz 2 1 3 Reel torque 1 Take up torque back tension torque The torque values when the test tape MTT 8111 for measur ing torques is played back should be as follows Take up torque right reel 30 to 70 g...

Page 6: ...entire tape path 2 In general adjustments and checks are made in the order of Lch then Rch Double REF Nos indicate Lch Rch Example R11 R21 3 0 dB is referenced to 0 775 V 4 The AC voltmeter used in t...

Page 7: ...MTT 150 Check only PHONES OUT 19 dB 3 dB 61 5 123 mV 6 Playback SN ratio SN Connection Fig 2 3 Leader tape with 70 METAL type case Check only 47 dB min 5 Playback frequency response Connection Fig 2...

Page 8: ...ontrol MAX REC BAL control Center 400 Hz 19 dB 87 mV Check only LINE OUT 3 5 dB 3 dB 367 731 mV 8 Specified LINE input level Connection Fig 2 3 REC BAL control Center 400 Hz 9 dB 275 mV INPUT control...

Page 9: ...Fig 2 3 DOLBY NR switch B or C Mode REC 19 kHz 10 Hz 12 dB 195 mV L101 L201 MAIN PCB 30 dB min Ratio of ref level to signal 14 Record level adjustment Connection Fig 2 3 Tape MTT 5513 400 Hz 12 dB 195...

Page 10: ...ck crosstalk Connection Fig 2 3 Tape MTT 5513 L ch No signal R ch 125 Hz 9 dB 275 mV Check only 30 dB min 14 Bias leakage Connection Fig 2 3 Tape MTT 5513 Mode REC No signal L102 L202 MAIN PCB 40 dB o...

Page 11: ...2 BIAS TRAP HX PRO 1 2 MECHA1 Erase head BIAS OSC 2 3 1 2 3 1 EXT CONTROL IN OUT 2 3 1 REMOTE RC 322A SLV SLV MASTER OFF 2 1 A CASCADE OUTPUT 10dBV 1 2 1 2 1 2 1 2 1 2 MIX R HP Amp PHONES OUT PHONES M...

Page 12: ...acitors refer to the circuit dia grams contained in the manual Parts marked with this sign are safety critical components They must be replaced with identical components refer to the appropriate parts...

Page 13: ...4 EXPLODED VIEWS AND PARTS LIST EXPLODED VIEW 1 13 TASCAM 302MKII...

Page 14: ...9109026112 AC CORD J 9109025711 AC CORD E 9109027701 AC CORD WLTH FUSE UK 9109029000 AC CORD US C GE 1 10 9121000102 BUSHING 2271 1 11 Vacant 1 12 9260231901 POWER BUTTON 1 13 9260231503 MAIN CHASSIS...

Page 15: ...EXPLODED VIEW 2 15 TASCAM 302MKII...

Page 16: ...SUB ASSY 2 18 9260205700 PLATE REFLECT 2 19 9260231403 FL WINDOW 2 20 9260230901 KNOB B 2 21 9260231100 ROTARY SW KNOB 2 22 9260231000 KNOB C 2 23 9260388200 PANEL FRONT 2 24 9260271101 BADGE TASCAM S...

Page 17: ...REF NO PARTS NO DESCRIPTION REMARKS 3 1 5761793800 PCB CONTROL BLK 3 2 5761790900 MAIN BELT 3 3 5761793700 MOTOR MAIN BLK 3 4 5761792300 MOTOR REEL BLK 3 5 5761791600 PINCH ROLLER ASSY L 3 6 576179150...

Page 18: ...0 PLUG 5P B5B XH A GATHER PCB A ASSY REF NO PARTS NO DESCRIPTION P109 9143162000 CONNECTOR PLUG 8P B8B XH A P110 9143161000 CONNENTOR PLUG 7P P301 9143235020 PLUG 7P B7B PH K RED P501 9143176000 PLUG...

Page 19: ...B ASSY REF NO PARTS NO DESCRIPTION P805 9143235040 PLUG 7P B7B PH K YEL P806 9143239000 PLUG 11P B11B PH K Q101 301 9163311520 TR 2SC2240 GR TP Q102 302 9163311520 TR 2SC2240 GR TP Q103 303 9163309420...

Page 20: ...30300 FL HOLDER GATHER PCB C ASSY REF NO PARTS NO DESCRIPTION J702 9144177000 TERMINAL LAPPING 2P EXCEPT J P500 9143237000 PLUG 9P B9B PH K P501 9143237020 PLUG 9P B9B PH K RED Q501 503 9163310420 DTR...

Page 21: ...21 TASCAM 302MKII GATHER PCB A MAIN PCB TR1 PCB TR2 PCB TR3 PCB...

Page 22: ...22 TASCAM 302MKII GATHER PCB B EQ BIAS PCB ANALOG SW PCB PHONE PCB...

Page 23: ...23 TASCAM 302MKII GATHER PCB C FRONT PCB CONTROL PCB KEY 1 2 PCB TRANS 1 2 PCB POWER SW PCB SW PCB...

Page 24: ...9101443000 OWNER S MANUAL JPNANESE J 9101443100 OWNER S MANUAL ENGLISH EXCEPT J 9101443200 QUICK START GUIDE ENGLISH E US C GE 9101443300 QUICK START GUIDE FRENCH E US C GE 9101443400 QUICK START GUI...

Page 25: ...NTS MAIN PCB 1 2 TR1 PCB TR2 PCB TR3 PCB Page 1 7 MAIN 2 2 PCB Page 2 7 ANALOG SW PCB Page 3 7 EQ BIAS PCB Page 4 7 FRONT PCB CONTROL PCB KEY 1 PCB KEY 2 PCB Page 5 7 PHONE PCB Page 6 7 TRANS 1 PCB TR...

Page 26: ...1 1SS133 D507 1N4003 C517 100 16 R504 1K C524 0 01 CC U509 BA6219 5 6 1 4 8 7 10 2 9 3 FIN RIN GND VREF VCC2 VCC1 OUT2 OUT1 VZ2 VZ1 C529 0 1 CC D521 1N4003 P101 7P PH WHT 100K W Q511 DTC124ES J503 R52...

Page 27: ...03 10K D105 1SS133 D104 1SS133 R179 1K R180 1K R379 1K R380 1K Q108 2SC1815GR R181 10K R182 10K R183 15K R382 10K R383 15K Q312 DTC124ES D107 1SS133 D307 1SS133 R169 8 2K D103 1SS133 C531 0 047 CC Q10...

Page 28: ...7K R905 10K R906 68 R907 47K R909 10K R910 68 R911 330K R912 330K R914 100 U801 BU4052 12 14 15 11 1 5 2 4 6 10 9 13 3 X0 X1 X2 X3 Y0 Y1 Y2 Y3 INH A B X Y U803A NJM4558D 2 3 1 U803B NJM4558D 6 5 7 U80...

Page 29: ...R406 4 7K R410 2 2K Q406 DTC143TS Q408 2SC1815GR C409 1 50 L305 TRAP 100KHz L405 TRAP 100KHz R432 12K C126 10P CC C125 10 25 C118 100 25 C117 0 0047 C116 0 001 C115 0 001 C114 0 015 C113 0 01 PP C313...

Page 30: ...P SAN 1 2 3 4 5 6 7 R521 RMLS6 103 R520 RMLS6 103 J502 7P SAN 1 2 3 4 5 6 7 J501 1 2 3 4 5 J600 9P SAN 1 2 3 4 5 6 7 8 9 P500 9P PH J650 9P SAN 1 2 3 4 5 6 7 8 9 JP1 JP2 J500 8P SAN 1 2 3 4 5 6 7 8 J5...

Page 31: ...TO AN_SW PCB P805 4 8 C604 10 25 R601 10K R602 10K R603 10K R604 10K C602 33P CC S61 SW3 R701 10K R702 10K R703 10K R704 10K C702 33P CC C701 220 10 J61 R61 50K A U601A UPC4570C 2 3 1 U601B UPC4570C 6...

Page 32: ...6 7 8 TO MAIN PCB 1 2 3 4 5 6 7 8 TO MAIN PCB 1 2 3 4 5 6 7 8 J701 J701 J701 J701 J701 N L L L L L N L N N N N 7 8 DC12V 1 0 23A 3 AC3 4V 5 DC30V 6 0 35A 2 C T 4 0 15A 4 0 15A 7 8 DC12V 1 0 23A 2 C T...

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