SERVICE MANUAL
Contents
1. 1 REC PLAY SWITCH PLAY 2 INPUT SELECT SWITCH LINE 53 EQ SELECT SWITCH NORMAL 4 BIAS SELECT SWITCH NORMAL 5 DOLBY NR MPX FIL SWITCH NR ON 6 TIMER SWITCH REC PLAY OFF AC220Y SI MEMORY FUNCTION SWITCH OFF 54 MEMORY DETECT SWITCH OFF 9 ERASURE PROTECT SWITCH OFF 510 AUTOMATIC ON OFF SWITCH WITH CASSETTE OFF su FUNCTION KEY SWITCH 12 EJECT SWITCH OFF 13 POWER SWITCH OFF UPC4558C IC 603 1A 2122 IC 601 602 NEE46 IC 801 802 ou 25 169121 IC 701 2 01438 IC 702 METER 251564 a 710 3 3 LAMP 254963 731 733 735 11903 256824 Q 204 601602 603 604 401 402 721 651 652 A 403 404 405 40 amp 407 408 409 722 410 411 705 706 707 732 113 734 256 1383 Q 202 704 109 136 250 2209 Q 201 102 703 738 NIITI oi 15 188F M D 401 402 403 404 6L9PR2 LEO 701 702 103 704 705 2 MA150 1S1555 B 451 707 708 709 710 711 DE WO3B 1N4002 0 201 202 203 204 209 211 212 213 214 134 701 702 703 705 706 724 m ETT 0 210 crise 205 206 207 208 0 721172 225 z ee teeta am 5 b pj asti ie IA 51868 200P oec PME RC lis 100K 8 unm l 3 LINE OWT 5 3 1 HEADPHONE R4 q JACK DIN AMP 0403 7 7 P C BOARD 0 1 R P REFER 10 3 1 EQ LEFT SIDE LINE QUT CR ss A 5 R664 15K Z aii Push Button Power Case Cassette Window Meter Plate Front Pane2. CIRCUIT DIAGRAM DII LOGIC CONTROL BOARD DLC 138B REMOTE ras LOGIC SWITCH BOARD Uus 138 CHi sevi _ O O O 2 a MER Vue 5 Ti FUNCTION O Bo KEY RTS E CONTROL cn2 501 LOGIC ie ood LL um ucuonr FG SERVO OC MOTOR MEMORY DETECT 10 02102 e z 4212 o AUTO 10 ON 0Ff ku FULL AUTO SHUT OFF DETECTOR DIN AMP P C BOARD ls IN ce o o o coe o e oe o coe o om Oo oo om cee A om emo omu coe a oo emo 1 211 TY T mme m ond Zp 132 l o 1748 25147 5 6 LINE IN R63 th E 22 T P605 C605 R607 663 o es 330K 49 O 2 yt i RP LEFT 49 62110 RIGHT Na R j wean 17603 R603 2K j ES DIN SOCKET 19805 R613 RGIS o OQO O6 0 QOO C615 REN si 00068 20K R P 13 R 5 5 1414 5 3 DOLBY NR 25147 5 6K C606 eas R809 CEI 180 E ME S 881 O R P DOLBY NR 6 15 4 1 v 0 39 1C802 y 2 3 4 6 8 LINE OUT G E d o X o TO EQ DOLBY NR REC AMP RIP SWITCHED ve P C BOARD E lair 2 s ere DE TG in heme UE ED EAE 4 R6I6 TP806 O O A A O O QO O _ O csie R618 EE 11 1 4 0 0068 20 5 6 St 55 4 or e SI 5 R P R P DOLBY NR R P DOLBY MR R P 10
3. 860 890 1080 1300 1310 1500 V2910 Drive Arm Ass y Reel Ass y SA Reel Ass y TA Drive Pulley Ass y Soft Dumper Ass y Counter S K Binder Hall Generator Fly wheel M Erase Head R P Head Motor Pinch Roller Rew Idler A Pinch Roller Arm Shaft Supporter G Cass Guide LA Cass Guide RA Pulley For String FF Idler Arm Ass y FF Action Arm Ass y Action Plate Ass y Chassis Ass y Head Panel Ass y Sub Chassis B FF Lever Ass y A Solenoid Ass y R P Head Spring B Pinch Roller Spring FF Action Arm Spring Rew Arm Spring A Brake Arm Spring RA Brake Arm Spring LA Action Plate Spring Drive Arm Spring Action Lever Spring Action Lever Spring Action Plate Spring Erase Head Spring Back Tension Spring Micro Switch SS 5GL13 String Ass y Rec Sensor Ass y A Counter Belt Rubber Cushion Adjusting Screw Brake L Brake R Rubber For Brake Reel Cap C Drive Belt Rubber Cushion C Main Belt Felt 1x6x4 Collar 2 8x3 5x5 V3210 V3960 V4470 X1920 X4110 X4580 X4910 X4970 X4980 X5040 X6330 X6340 X6350 X6370 X6380 X6390 X6400 X6410 X6460 X6570 X7140 X7160 X7180 X7210 X7220 01105 01111 01144 01151 01166 04085 17165 18086 18088 19145 19146 19149 19155 19166 20148 21046 21050 23007 23014 27026 30126 32201 32252 33077 35104 36015 36020 36025 42025 FF Idler Arm Collar Case Lock Arm Collar Motor Pulley Lug E Washer Pressing Metal Action Arm Bra
4. 705 CONTROLS Potentiometer EW K HWA332A24 VR601 EWK G4A323703 Potentiometer V R602 EVT R4A00B24 Carbon Trimmer SV R601 602 2K B 86 Carbon Trimmer SVR684 5K B Carbon Trimmer SVR401 402 683 10K B Carbon Trimmer SVR631 632 100K B Carbon Trimmer SVR681 682 SWITCHES ESD 81541 Slide Switch SW4235012 Lever Switch SW4435013 Lever Switch SW4635021 Lever Switch ESL 2428 Lever Switch LSA 1139 Leaf Switch HKWO141 01 010 Function Button Unit Ass y ESB7097 AC ON OFF Switch BIAS OSC UNIT 53T 003 or 191004 Bias OSC Unit OSB681 FILTER 124 1120 Filter 19kHz FIL801 802 OP Q ty COILS amp TRANSFORMERS NPT 0435S Power Transformer 162005 Output Transformer 1 8mH MC129Y Variable Inductor L631 632 1 2mH RC 875 Inductor L633 634 CONNECTORS amp TERMINALS T401 402 NNN HLJ 0294 01 02 Headphone Jack 1 HLJ 0264 01 03 Mic Jack 2 CS728 1 2 8 Hole DIN Socket 1 N41572 4 Pin Jack 1 MCO3 021 Micro Connector 1 Ass y MCO6 014 Micro Connector 1 Ass y MCO7 015 Micro Connector i 1 Ass y MCO7 016 Micro Connector i 1 Ass y MCO9 017 Micro Connector 1 Ass y MCOO9 018 Micro Connector 1 Ass y 171825 3 Micro Plug 3 Pin 1 171825 6 Micro Plug 6 Pin 1 171825 7 Micro Plug 7 Pin 2 171825 9 Micro Plug 9 Pin 1 SR3P 4 Strain Relief Line 1 Cord PC 002 Audio Cable 2 ACC 010 Line C
5. 3 1 DDA 167A TO EQ DOLBY TO EQ DOLBY NR REC AMP NR REC AMP DAM 166 DAM 166 POWER SWITCH ei u 138 4 2 a gt gt op XX eo e E m o 5 ao TO EQ DOLBY NR REC AMP DAM 166 PARTS LIST Part No Q ty Description Symbol No INTEGRATED CIRCUIT amp TRANSISTORS TC9121P LSI IC701 TA7122AP IC IC601 602 or TA7122BP 1 uPC4558 IC IC603 NE646BN IC IC801 802 2SA564 OR Transistor Q710 2SA963 QR Transistor 0731 733 735 25C828 0R 204 401 402 403 404 405 406 407 408 409 410 451 601 602 603 604 651 652 705 706 707 713 721 722 732 734 736 Q202 704 709 Q201 701 702 703 Q708 Q711 Transistor 25C1383 0R 2SC2209 QR Transistor Transistor 2SD592ANC QR N13T1 Transistor P U T 1S188FM or 1N60 or 20490 151555 or MA150 Germanium Diode 401 402 403 404 D451 707 708 709 710 711 721 722 D201 202 203 204 209 211 212 213 214 701 702 703 704 705 706 D210 216 217 D205 206 207 208 Silicon Diode WO3B or 1N4002 Silicon Diode 1N4002 GP 15B Silicon Diode Silicon Diode HZ6 3 A Zener Diode DZ203 HZ9 2 B Zener Diode DZ701 HZ12 3 C Zener Diode DZ202 702 HZ24 3 Zener Diode DZ201 GL 9PR2 LED LED701 702 703 704
6. Mylar 5 Mylar 5 Mylar 20 Electrolytic 0 33M Electrolytic 0 47M Electrolytic 10M Electrolytic Electrolytic Electrolytic Electrolytic Electrolytic Electrolytic Electrolytic Electrolytic Electrolytic Electrolytic Electrolytic Electrolytic Electrolytic Electrolytic Electrolytic Electrolytic Electrolytic Electrolytic Electrolytic Electrolytic Electrolytic Electrolytic C452 709 C803 804 C811 812 C601 602 C216 C637 638 C215 C611 612 C407 408 644 C218 C219 C667 668 C212 403 404 631 710 807 813 814 821 823 824 822 808 632 665 666 C704 C705 C802 C214 C707 C663 664 C401 402 641 642 C213 609 610 639 640 C208 605 606 635 636 669 C210 617 618 683 801 C209 211 C250 C731 732 733 ONN ANN BN BWHNHAHNNNN ae Q ty 35TW 1000uF SOTW 0 1uF 5OTW 1uF SOTW 2 2uF 50TW 220uF N10114 N41095 N20395 BK N30252 2 N30252 1 N30209 1BK N41232 N41233 N41281 S N41265 N30254A N41291 N41661 N41660 N30248 BK N30251 BK N41266 BK N41293 N41443 N41250 T N41109 N20398 T C MISCELLANEOUS mE N41310 N41261 N41262 N41283A N41294 N41295 N41258 OM 152 PACKING MATERIAL N41318 N40487 N20389 N20390A N41424 N41662 NOTE 1 Part orders must contain Model Number Part Number and Description 2 Ordering quantity of screws and or resistors must be multiple of 10 pcs 3 Resistors
7. SERVICE MANUAL FD 710 Stereo Cassette Deck SPECIFICATIONS Track System 4 track 2 channel stereo recording and playback Tape Speed 1 7 8 i p s 4 75 cm sec Wow and Flutter 0 07 WRMS Frequency Response 30 16 000Hz 3dB 20 17 000Hz FeCr tape 30 16 000Hz 3dB 20 1 7 000Hz CrO tape 30 14 000Hz 3dB 20 15 000Hz Normal tape Dolby NR off oignal to Noise Ratio 53dB Dolby NR off CrO or FeCr tape CCIR ARM weighted 1kHz The S N is improved by 9dB with Dolby NR on Total Harmonic Distortion 1 896 at 1kHz OdB Erase Ratio 6548 at 400Hz 10dB Bias Frequency 85kHz Fast Forward and Rewind Time 70 seconds C 60 tape Input Sensitivity Impedance 0 25mV 12 kohms 70mV 25 kohms 2mV 10 kohms Output Level HEADPHONES GENERAL Power Consumption 40 watts Power Supply Power Supply 110 220V AC 50 60Hz Dimensions 442 W x 354 D x 133 H mm Weight Net 7 2kg 15 9 lbs Accessory Shielded Audio Cables 2 DOLBY NR e Dolby NR under license from Dolby Laboratories e The word DOLBY and Double D Symbol are trade marks of Dolby Laboratories Specifications and design are subject to change without notice ALIGNMENT PROCEDURE 1 Head Azimuth PLAY AMP DOLBY AMP LINE OUT V M D gt 9 f I p ndi Po t ADJUST Controls to be positioned Dolby NR OFF MTT 114 1 Adjust the head screw in order to obtain max Equalizer 120s
8. V M indication Function PLAY Rec Volume Max Center Balance Volume 2 VU Meter DOLBY AMP METER AMP ADJUST VU METER LINE IN cm ADUST FOR 3dB NN APPLY 400H SIGNAL SVR401 SVR402 LINE OUT Dolby NR OFF Blank 1 Apply 400Hz 250mV signal at the LINE IN Equalizer 1205 Normal terminal Function gt REC 2 Adjust REC and BALANCE volume to have 580mV V M indication 3 Set blank tape then press the REC button 4 Set the VU meter indication to DOLBY LEVEL double D mark position with SVR401 402 3 Play Back Level SVR601 PLAY AMP SVR602 DOLBY AMP METER AMP VU METER TP805 TP806 j ADJUST V M 580mV Dolby NR MTT 150 1 Set the V M indication to 580mV with SVR601 Equalizer 602 alignment Function ALIGNMENT PROCEDURE 4 Bias Trap Bias Voltage ADJUSTMENT A REC AMP 631 L632 BIAS OCS TP603 SVR681 TP604 SVR682 V M B FOR BIAS VOLTAGE V M A ADJUSTMENT B FOR BIAS TRAP ADJUSTMENT A BIAS TRAP Controls to be positioned Test Tape Procedure Dolby NR OFF Blank I a NX Equalizer 705 Normal Adjusting L631 632 to min indication on the Function REC V M scale at the Test point of TP601 and 602 Tape Mode CrO ADJUSTMENT B BIAS VOLTAGE Dolby NR OFF Blank 1 Adjust
9. cket A Action Arm A Head Panel Pushing Plate G Rew Arm Head Panel Pushing Plate J Flywheel Supporter Q Micro Switch Bracket Cass Hold Back Spring Plate Head Panel Pushing Plate K Solenoid Arm Guide A Solenoid Arm RB Solenoid Arm LB Motor Holder R IC Board Bracket A Hew Lever Lock Bracket B Back Tension Brake C Drive Arm Pushing Plate A Supporting Plate For Brake A Screw 2 3x4 Screw 2 3x10 Screw 2 6x3 Screw 2 6x10 Screw 3x5 Screw 2x4 Screw 3x5 Bind Screw 2x5 Bind Screw 2x7 Screw W Spring Washer 2 6x4 Screw W Spring Washer 2 6x5 Screw W Spring Washer 2 6x8 Screw W Spring Washer 2 6x14 Screw W Spring Washer 3x5 Screw W Flat Washer 2 6x7 Screw W Flat Washer 2 6x4 5 Screw W Flat Washer 2 6x6 5 Tapping Screw 2 6x6 Tapping Screw 2 6x5 Spring Washer M2 6 Flat Washer 2 8x7 5x0 5 P S W 2 1x4x0 13 P S W 2 6x4 7x0 25 Spring Pin 3x16 Rivet 2x3 E Ring E 1 5 E Ring E 2 0 E Ring E 2 5 Steel Ball M2 5 3 1 1 1 1 1 1 2 1 1 1 1 1 1 1 1 1 1 2 2 2 6 2 2 1 1 1 1 1 A ONO NN FP HNN NUA o N EXPLODED DIAGRAM o d E A 27026 w 4 xm A 02100 dA 01151 u xem A 20 uovo 00390 p E d Oslo Ki g COIN 19146 kT _ Bog 3 7 fi Sy bu Ma dA x1920 D N MI 5 S l a x 01144 MODEL CT 3309B
10. l N41281 S N20398 N41250 T N30251 BK1 N10114 Knob Guide 2 N30209 1BK Push Butt Eu oe HO N41265 amp le Headphone Jack HL J 0294 01 02 ER ul Knob 44 E N41660 au J N41661 Knob Guide OM N30252 2 NE ea Reset Button Knob Lever Foot Cassette Window N41291 N30254A Knob Guide T C Mtg Bkt N30252 1 N41095 MIC Jack HL J 0264 01 03 BLOCK DIAGRAM FUNCTION KEY 1C701 Q701 702 731 SL1 EW sE 22 732F F DRIVE F F DRIVE ANP SOLENOID F F 3 PEAY 702 2 EA CONTROL REW DRIVE REW DRIVE AMP SOLENOI REC LOGIC 2 e 5 Q703 SL3 17 ae REC SOLENOID REC DRIVE DRIVE AMP SOLENOID PAUSE g 7 Q704 12 MOTOR M y ERASE DRIVE HEAD F G SERVO nt aT gy DC MOTOR OSB681 i Q705 706 702 I FULL AUTO BIAS r 707 711 SHUT OFF CIRCUIT TO R P HEAD OSC bl ana DO 253 ZD cin et LEVEL METER 1C601 Q407 EOUALIZER ove MUTING Wi AMP i CIRCUIT VR601 PIN3 Mi PIN7 9 R P HEAD SHOWN LEFT CHANNEL ONLY 0409 HEADPHONE MUTING o JACK CIRCUIT LINE OUT 195
11. not detailed in parts list are all carbon type watt with regard to the value refer to the schematic diagram Electrolytic Electrolytic Electrolytic Electrolytic Electrolytic Front Panel Cass Window Mtg B Cass Holder Knob Guide Knob Guide Knob Guide Side Cap Right Side Cap Left Push Button Power Push Button Eject Knob Lever Reset Button Knob 21 Knob 44 Cass Compartment Meter Plate Top Cover Alum Plate Meter Window Cass Window Counter Window Case Foot Switch Shaft Shaft Coupler Shaft Coupler Eject Spring Spring A Spring B Cass Holding Spring Instruction Book Poly Bag Poly Bag Pad Right Pad Left Pad Top Carbon C205 C721 C405 406 684 706 711 712 C708 C206 Timer Memory Switch Bias EQ Input Switch Dolby NR Switc Power ON OFF Switch Power Eject Rec Balance Rec Level Cass Holder Logic Cont For Unit For Inst Book a a a SS 9 PARTS LIST CASSETTE DECK MODEL CT 3309B een mem uw A0170 0180 A0190 A02000 0230 0390 1360 1310 F0130 G0430 G1340 G 1350 J0100 J0280 J0440 J0460 J0640 J0650 J0670 K1630 K1640 K1660 K2090 K2100 K2360 K2440 P0130 Q0240 Q1990 Q2010 Q2020 Q2050 Q2060 Q2080 Q2100 Q2110 Q2140 Q2150 Q2260 Q2310 340 10210 10220 0170 340 600 U0840 850
12. ord 1 PRINTED CIRCUIT BOARD Amplifier P C B Logic Control P C B Logic Switch P C B Power Supply P C B SOLENOID FUSES METERS amp LAMPS FU 520201 5T Fuse 200mA FU1 2 2 FU 520202 5T Fuse 2A 5 1 FU 523152 5T Fuse 3 15A FUG 7 2 FU 520501 5T Fuse 500mA FU8 9 2 KL 258T 6 Level Meter Silver LA903 904 2 BQ044 23633A Lamp LA901 902 2 BQ141 26404A Lamp Meter LA903 904 2 PL12303003A Lamp LA905 1 FUSE HOLDERS S N5053 Fuse Holder D 14 RESISTORS AW 3 3K Q Metal Film Resistor R811 812 2 7W 390 Wire Wound Resistor R702 703 CAPACITORS 20pF Ceramic Capacitor C607 608 659 4 660 C647 648 681 4 m 200pF Ceramic Capacitor 270pF Ceramic Capacitor 2 MC0 01 uF 4 Ceramic Capacitor C713 714 715 716 C201 202 203 4 204 SCO O5uF Ceramic Capacitor PARTS LIST Q ty ECQ P 1472FZ ECO P 1562FZ ECQ P 1273FZ 560pF ECNCAA 103M 50V 0 001 2uF 50V 0 0068uF 50V 0 0082uF 50V 0 01uF 50V 0 01 2uF 50V 0 047uF 50V 0 056uF 50V 0 1uF OV 0 033uF ECEA50MR33 ECEA50MR47R ECEA16M10R 10TW 47uF 10TW 1004F 10TW 33uF 10TW 1000uF 10TW 2200uF 16TW 4 7uF 16TW 10uF 16TW 47uF 16TW 100uF 16TW 220uF 16TW 1000uF 25 TW 3 3uF 25TW 1uF 25 TW 4 7uF 25TW 10uF 47uF 25TW 100uF 25TW 220uF 35TW 220uF STW 100uF Polypropylene Polypropylene Polypropy lene Polystyrene Oil My lar 5 Mylar 5 Mylar 5 Mylar 5 Mylar 5 Mylar 5
13. the bias voltages as follows Equalizer 1205 Normal 5 2 Tape Mode Normal Eod Tape iio LOSE ae 1 Normal 3 7mV SVR681 2 SVR682 F E id 2 CrO SVR684 u 3 FeCr SVR683 EHE WENN MEER NOTE Test tapes that required for the above alignment are all TEAC brand and please do not carry out these align ment without test tapes All uneven number of Test points and Carbon trimmers aligns for the LEFT channel and the other numbers aligns for the RIGHT channel ALIGNMENT COMPONENT LAYOUT SVR401 SV R402 SV R682 TP603 ef a TP601 a SVR631 TP602 SVR601 SVR602 9 SVR684 DOLBY NR REC AMP DAM 166A EQ OVIH 35143 IJIJN ui dNVI 233 3NOHdft 3H HD 1 I 48100 YILIN HI y I JNOHAOVJH HI T 100 1811 H2 y gl HI 3 SL Qvi 18 iJ Zl LOGIC CONTROL DLC 138 1B PLUNGER MUTE REW PLUNGER FF PLUNGER LED GND lt 0 106 7 E amw 88 gt MOTOR PAUSE IND LED 4 7 m M E de 83 gt MOTOR HALL IC FF IND LED lt 109 PLAY IND LED lt O 110 REW IND LEDe 411 REC IND dbi REMOTE DIN 8P SOCKET 2 1 MIRROR LAMP IRMA 3 2 EJECT SWITCH 4 3 GND 5 4 ERASE PROTECT SWITCH 6 5 MEMORY SWITCH GND 6 HALL IC OUT 7 1 CASSETTE SWITCH END 8 p 105 104 103 102 101 100 99 98 97 9999999 FUNCTION Key POWER SUPPLY DPS 18
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