Sanyo Trc-8800 - cassette transcriber User manual

FILE NO. I

Service Manual MEMO-SCRIBER TRC-8800 (NZ )

Dictating /transcribing

System

L..........................................................

,:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.?..:.:.:$:.:.

::::::::::::::::::::::::::::::::::::::::::::::::::::::::::;

.............................

[Vtilll) l-l ——

Specifications

‘b

Recording system .... AC bias

Erasing system ...... DC erase

Fast forward and

rewind time ......... 110 sec. (C-60 tape)

Wow and flutter ...... 0.2 ‘A WRMS

Frequency response . . 200- 10,000 Hz

Signal to noise ratio ... 36 dB

PRODUCT CODE No.

142 939 05

Output power ........ 800 mW (10 O/. RMS)

Loud speaker ........ 66 mm (D) ,8ohms

Power source Local current with AC’ adaptor

AC :2301240 V, 50 Hz

DC INPUT :9 V

Dimensions ......... 273( W)x165(D)x55(H)mm

Weight ............. 1.16kg

Specifications subject to change without notice.

REFERENCE No. SM580262

REMOVAL AND INSTALLATION w

●Disconnect the power cord’s plug from the electrical outlet.

●All wiringShouldbereturned to the original position after work is completed.

a. WIRING LAYOUT

b. CASSETTE &TAB SWITCHES

●Checking the installation positions of switches.

MAINTENANCE

Clean the heads periodically for continued high fidelity performance.

Use acotton swab and any commercial head cleaning agent.

Follow instructions on the cleaner container. PINCH ROLLER

The magnetic head which is use for recording and playback

can become magnetized from continued use. ~

REC/PLAY HEAD

Amagnetized head will cause distortion in playback or recording. .,

CAPSTAN ‘~’s <, ERASE HEAD

Demagnetize the head

.,..<

Periodically with acommercially available head demagnetizing unit. b

Complete instructions are provided with these specially designed units. COTTON SWAB

‘J-

-1-

TAPE DECK ADJUSTMENTS

~~. HEAD Replacement AND AzlMuTHADJusTMENT

(a) Head replacement

●After replacement, demagnetize the heads by

using adegausser.

E. HEAD

●Be sure to clean the heads before attempting

to make any adjustments. *LR/P HEAD

Q’

●All wiring should be returned to the original position

after work is completed.

(b)

(1)

(2)

(3)

(4)

Head azimuth adjustment

Load the test tape (VTT-703, etc. :10 kHz )for

azimuth adjustment.

Press the PLAY button.

Use across-tip screwdriver to turn the screw for

azimuth adjustment so that the outputs are maximized.

After completion of the adjustment, use thread lock

(TB-1 401 B) to secure the azimuth-adjustment screw.

HEAD AZIMUTH ADJ.

●

‘L

●

reading of 3,000 Hz

SPEED CONTROL

VOLUME(CENTER)

CHECKING THE MECHANISM TORQUES AND TENSION

Clean the head, capstan and pinch roller before making any measurement.

Measurement Take-up torque Back tension Tape tension

Cassette for PLAY: TW-21 11A Drive-power cassette

PLAY: TW-21 11A

measurement F.FWD/REW:TW-2231 TW-2412

PLAY 30 gr.cm or more 1.0- 8.0 gr.cm 60 gr. or more

F.FWD 60 gr.cm or more

REW 60 gr.cm or more

-2-

EXPLODED VIEW (CABINET &CHASSIS)

3“/ -2

{“

-51

-7

--& &yo7

I-Y06 Yo7-~

9-Y02

i-Yol

-3-

PARTS LIST

PRODUCT SAFETY NOTICE

Each precaution in this manual should be followed during servicing. Components identified with the IEC symbol ~in the parts

list and the schematic diagram designate components in which safety can be of special significance. When replacing acomponent

identified ~, use only the replacement parts designated, or parts with the same ratings of resistance, wattage or voltage that are

designated in the parts list in this manual. Leakage-current or resistance measurements must be made to determine that exposed

parts are acceptably insulated from the supply circuit before returning the product to the customer.

CAUTION: Regular type resistors and capacitors are not listed. To know those values, refer to the schematic diagram.

ACKINI

Ref. No.

!01

!02

$03

:ABINE-

Ref. No.

&ACCESSORIES

Part No.

614 256 2413

614 250 6196

614 250 6202

614 256 2437

614 176 1190

614 253 1044

614 250 6141

614 254 2828

~645 003 3933

620 003 0106

620 208 9720

645 002 8175

620 004 0594

kCHASSIS

Part No.

614 253 9729

614 253 9811

614 253 9774

614 250 5878

614 250 4734

614 069 0385

614 122 0796

614 250 1818

614 250 2723

614 250 5830

614 250 2952

614 250 2969

614 250 2976

614 250 4659

614 250 4666

614 252 2646

614 250 6042

614 250 1740

614 250 2730

614 250 6028

614 250 2709

614 250 2716

614 253 9712

614 254 2569

Description

CARTON CASE

CUSHION,LEFT

CUSHION,RIGHT

INSTRUCTION MANUAL

INNER POLYE COVER,

100X2OOMM

INNER POLYE LAMINA COVER

350X250MM

CASE,ACCESORRY

CUSHION

ADAPTOR,AC-DC

HEAD SET,HEAD PHONE

CUSHION,EAR,HEADPHONE

MIC AND REMOCON

FOOT CONTROL COMP

Description

ASSY,LID,CASSETTE

OEC,FRONT

CABINET

SPRING,WIRE,LID,CASSETTE

GEAR ASSY,CASSETTE

BRACKET SPEAKER

SLIDE,EJECT

KNOB,SLIOE,EJECT

MOUNTING,EJECT

BUTTON,TACT,ERASE/STOP/

PLAY/F.FWD/REW

BUTTON,PUSH,TEL REC/

DICATION/CONFERENCE/

MIC/SEARCH

BUTTON,POWER

BELT,SQUARE,TAPE COUNTER

COUNTER,TAPE

ASSY,MOUNTING,COUNTER

BELT,SQUARE

CAP,HEAOPHONE

KNOB,SLIDE

ASSY,HOLOER,MIC

DEC,FRAME,LEFT

DEC,FRAME,RIGHT

ASSY,CABINET,BOTTOM

SPACER,CUSHION,MOLTPREN,

CABINET MTG.

Ref. No.] Part No. Description

I614 125 0236 ICUSHION,5X15MM

614 253 0368

614 125 1622

SPACER,CUSHION,

32X32MM,P.C.BOARD

CUSHION,5X1OMM

FIXING PARTS

Ref. No.

Yol

Y02

Y03

Y04

Y05

Y06

Y07

Ylo

Yll

Y12

Y13

Y14

Y15

Y16

136

ELECTRII

Ref. No.

135

CN916

CN918

Part No.

411 021 4609

411 020 9902

411 021 3107

411 021 4005

411 026 4307

411 021 4005

411 021 6405

411 101 9203

411 021 3107

411 022 7807

412 032 6408

411 022 7807

411 087 4704

411 022 6701

411 102 1701

Description

SCR S-TPG BIN 3X16MM,

CABINET BOTTOM

SCR S-TPG BRZ+FLG 3X8MM,

AMP. P.C.BOARD

SCR S-TPG BIN 2.6X8MM,

COUNTER

SCR S-TPG BIN 3X12MM,

MOUNTING,COUNTER

SCR S-TPG PAN 3X25MM,

MECHANISM

SCR S-TPG BIN 3X12MM,

MECHANISM

SCR S-TPG BIN 3X8MM,

SPEAKER FIX

SCR S-TPG PAN 2X12MM,

LED PCB

SCR S-TPG BIN 2.6X8MM,

EJECT

SCR S-TPG PAN 2X6MM,

SWITCH PC8

SPECIAL SCREW,OAMPER

SCR S-TPG PAN 2X6MM,SLIDE

WASHER V2X6X0.4MM,SLIDE

SCR S-TPG PAN 2X1OMM,DEC

SCR S-TPG PAN TRS 2X8MM

CASSETTE/TAB SWITCH

MECHANISM MTG.

Part No. Description

620 205 8146 SPEAKER,8 OHM

620 208 1052 SWITCH,LEAF,S3,S4

CASSETTE/TAB SWITCH,

MECHANISM MTG.

614 253 1181 CORD, 4P,CONNECTOR,

CASSETTE,TAB SWITCH

614 253 1204 CORD,2P CONNECTOR,SPEAKER

–4–

PARTS LIST

\MP. P-C-R0AR13

..... . . ----- . ....

Ref. No. Part No. Description

71 614 250 8695 ASSY, PCB, AMP.

C739 403 058 6107 POLYESTER 0.15U M50V

CF901 620 026 9650 RESONATER CSA-4MG

CN901 620 017 6729 JACK 3P W/SW,TEL REC

CN902 620 017 6729 JACK 3P W/SW,EARPHONE

CN903 620 017 1847 DIN SOCKET 6P,REMOTE

CN904 620 017 6712 EXT POWER SOCKET

CN905 614 017 2560 PLUG,5P,R/P,ERASE HEAD

CN906 614 017 2614 PLUG,1OP,LED PCB

CN908 614 017 2102 PLUG,3P,PLUNGER

CN909 614 017 2546 PLUG,3P,MAIN MOTOR

CN91O 614 017 2553 PLUG,4P,CASSETTE,TAB SWITCH

CN913 614 017 2539 PLUG,2P,REEL MOTOR

D601 407 007 9904 DIODE GMAO1 (D601-D603)

D701 407 007 9904 DIODE GMAO1 (D701-D703)

D901 407 007 9904 DIODE GMAO1

D903 407 007 9904 OIODE GMAO1 (D903,D904)

0905 407 004 9105 OIODE DSF1OC (D905,D906)

D907 407 007 9904 DIODE GMAO1

0910 407 007 9904 DIODE GMAO1

D914 407 007 9904 DIODE GMAO1

D921 407 007 9904 DIODE GMAO1

D923 407 007 9904 DIODE GMAO1

D924 407 007 9904 DIODE GMAO1

IC601 409 018 2509 lC LA5525

IC602 409 018 2509 IC LA5525

IC901 409 017 5105 IC LA4160

IC902 409 030 5908 IC MC14066BCP

IC903 409 217 7909 IC LC6554D-4370

IC904 409 002 9309 IC BA6104

IC905 409 026 8500 IC L78M05

IC906 409 030 3805 IC MC14001B

IC907 409 199 4705 IC MC14066BF

L701 614 028 6748 FILTER,1OUH

L702 614 028 6748 FILTER, 1OUH

L703 620 208 6576 INDUCTOR,FERRITE

L704 614 028 4133 FILTER,1OUH

L901 614 028 4010 FILTER, l.OUH

L902 614 028 4133 FILTER,1OUH

L903 614 028 4133 FILTER, 1OUH

L904 614 028 4010 FILTER,l.OUH

L905 614 027 6954 CHOKE

PC901 407 060 8401 PHOTO COUPLE 0N2170Q

Q601 405 000 4407 TR DTC124ES

Q602 405 009 5108 TR 2SB926-T

Q603 405 000 6104 TR DTC144ES

Q604 405 021 0600 TR 2SD1012-G-SPA

Q605 405 021 0600 TR 2SD1012-G-SPA

Q606 405 000 1208 TR DTA124ES

Q607 405 000 6104 TR DTC144ES

Q608 405 017 9600 TR 2SC3330-T

Q609 405 022 0203 TR 2SD1247-S-AE

405 022 0302 TR 2SD1247-T-AE

;:10 405 000 4407 TR DTC124ES

Q611 405 009 5108 TR 2SB926-T

Q612 405 009 5108 TR 2SB926-T

Q613 405 000 4407 TR DTC124ES

Q614 405 021 9900 TR 2SD1246-S-AA

405 022 0005 TR 2SD1246-T-AA

;;15 405 021 9900 TR 2SD1246-S-AA

405 022 0005 TR 2S01246-T-AA

;;16 405 017 9600 TR 2SC3330-T

Q617 405 024 9907 TR 2SD734-F

Ref. No.

Q618

Q619

Q701

Q702

Q703

Q704

Q705

Q706

Q707

Q708

Q709

Q71O

Q712

Q713

Q714

Q715

Q716

Q717

Q718

Q719

Q903

Q904

Q905

Q906

;;07

;;08

Q909

Q91O

Q911

Q912

Q913

Q914

Q915

Q916

Q917

Q918

Q919

Q920

Q921

Q922

Q924

R612

S901

S902

S903

S904

S905

S906

S907

S908

S909

S91O

T901

T902

SVR61

VR601

VR701

VR702

VR901

Part No.

405 024 9907

405 017 9600

405 000 4407

405 021 0600

405 017 9600

405 010 9706

405 000 4407

405 017 9600

405 004 4502

405 017 9600

405 004 4502

405 017 9600

405 000 1208

405 021 9900

405 022 0005

405 022 0203

405 022 0302

405 000 1208

405 004 4502

405 017 9600

405 004 4502

405 000 6104

405 017 9600

405 000 1208

405 000 6104

405 000 4407

405 000 6104

405 095 2708

401 059 1602

620 016 4320

620 015 3164

614 220 5471

620 205 7316

620 207 8038

614 203 6594

620 206 5038

620 006 3159

620 006 3166

Description

TR 2SD734-F

TR 2SC3330-T

TR DTC124ES

TR 2SD1012-G-SPA

TR 2SC3330-T

TR 2SC1571-G-NP

TR DTC124ES

TR 2SC3330-T

TR 2SA608-F-NP

TR 2SC3330-T

TR 2SA608-F-NP

TR 2SC3330-T

TR DTA124ES

TR 2SD1246-S-AA

TR 2SD1246-T-AA

TR 2SD1247-S-AE

TR 2SD1247-T-AE

TR DTA124ES

TR 2SA608-F-NP

TR 2SC3330-T

TR 2SA608-F-NP

TR DTC144ES

TR 2SC3330-T

TR DTA124ES

TR DTC144ES

TR DTC124ES

TR DTC144ES

TR 2SJ40-D

OXIDE-MT 15 JA lW

PUSH SWITCH,TEL REC

PUSH SWITCH,HAND/SEAKER

PUSH SWITCH,SEARCH

PUSH SWITCH,

CONFERENCE/DICATION

SWITCH,POWER

SWITCH,TACT,PLAY

SWITCH,TACT,F.FWD

SWITCH,TACT,REW

SWITCH,TACT,STOP

SWITCH,TACT,ERASE

TRANSFORMER,OSC

TRANSFORMER

SEMI-FIXED RESISTOR,1OK OHM

MOTOR SPEED CONTROL

VR,SLIDE,50K OHM,

SPEED CONTROL

SLIDE VR 10KAX1,VOLUME

SLIDE VR 10KAX1,TONE

SLIDE VR 10KBX1,BACKSPACE

-5-

PARTS LIST

wLED P.C. BOARD ASSY

Ref. No.

CN907

CN911

CN912

CN920

D908

D909

D912

D913

D922

Part No.

614 250 8701

614 017 2249

614 017 3819

614 035 4997

614 253 1228

408 016 1200

EJECT SWITCH P.C. BOAR[

Ref. No.

CN919

CN921

Part No.

614 253 6926

614 253 1211

614 035 4911

614 230 8578

620 206 5168

Description

ASSY,PCB,LED

PLUG,2P,SPEAKER

PLUG,2P,EJECT SWITCH

SOCKET,1OP

CORD,1OP,CONNECTOR

LEO SLZ-190B-09-T2,F.FWD

LED SLZ-190B-09-T2,REW

LEO SLZ-190B-09-T2,PLAY

LED SLZ-190B-09-T2,ERASE

LED SLZ-190B-09-T2,POWER

ASSY

Description

ASSY,PCB,EJECT SWITCH

CORD,2P,CONNECTOR

SOCKET,2P

SWITCH,PUSH,EJECT

ACCESSORIES PARTS

HEADSET,HEADPHONE

403

HANDCONTROL(MIC &REMOCON)

402

FOOTCONTROL

-6-

EXPLODED VIEW (TAPE MECHANISM)

-164

163-W S-165

142

130-+!

-7-

PARTS LIST

*TAPE MECHANISM (TM-T8080-I -JP)

Part No.

620 125 4488

614 250 5847

614 250 5861

620 125 0480

620 204 2039

620 204 2930

620 125 0480

620 122 8779

620 203 9190

620 203 9206

620 208 1076

620 122 7437

645 002 9370

–, Description Ref. No.

WASHER 141

REEL,SUPPLY 142

SPRING,COMP 143

WASHER 144

ASSY, REEL,GEAR,TAKE-UP 145

SPRING,COMP 146

WASHER 147

SCREW 148

ROLLER 149

LEVER,PLUNGER 150

SPRING,TORS,PLUNGER 151

SCREW,PLUNGER 152

COIL,MAGNETIC, 153

PLUNGER 154

MOTOR ASSY,9V,1W 155

MOTOR,9V,1W 156

CUSHION MOTOR 157

SCREW,MOTOR 158

SCR PAN+SW 3X6MM 159

CORD,3P CONNECTOR WITH LUG, 160

MAIN MOTOR (CN915) 161

WASHER 162

Description

ASSY,CHASSIS

LEVER,EJECT

SPG STOP LEVER

LEVER,LOCK

DAMPER CHASSIS

WASHER,FLYWHEEL

SCR PAN+SW 2.6X6MM

SPRING,PLATE,CASSETTE

ARM,TAKE UP

GEAR IDLER

ASSY,BASE,SLIDE

BALL

PINCH ROLLER

WASHER

SLIDE,ERASE,HEAD

SPRING BASE HEAD

SPACER,HEAD

SCR PAN 2X8MM

ASSY,PCB,ERASE HEAD

SCR S-TPG BIN 2X6MM

SPRING ADJUST MOTOR

HEAD,R/P

Part No.

620 204 2220

620 203 9282

620 136 8208

620 203 9213

620 124 1563

620 125 0855

411 003 8809

620 206 4499

620 203 9169

614 206 8007

620 204 2022

620 136 1599

620 126 9529

620 125 3351

620 209 9095

614 206 9660

620 206 3775

411 039 4103

620 208 6620

411 021 0809

620 137 3981

620 206 5045

Ref. No,

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

121

122

123

124

125

620 219 9016

620 206 5700

620 124 1075

620 122 8274

411 003 8908

614 253 1174

620 125 2545

126

127

128

129

130

131

132

620 219 9023

620 219 9030 DISK ASSY (WITH REFLECTOR) 163

ASSY,FLYWHEEL 164

(WITH REFLECTOR) 165

BELT,SQUARE 166

SPRING,TENSION 167

SCR S-TPG BIN 2.6X1OMM CN914

SUPPORT,FLYWHEEL CN917

411 033 0408

411 038 7501

620 125 8417

411 021 1905

620 138 4994

614 253 1167

614 253 1198

620 123 8112

SCR BIN 2X12MM

SCR PAN 2X12MM

LUG

SCR S-TPG BIN 2.6X1OMM

SPRING BASE SLIDE

CORD,2P,CONNECTOR,REEL MOTOF

CORD,5P,CONNECTOR,

ERASE &R/P HEAD

SHEET,CHASSIS MTG.

620 203 9244

620 204 2923

411 021 1905

620 203 9220

620 136 1629 BALL

SCHEMATIC DIAGRAM (ACCESSORIES PARTS)

HANDCONTROL FOOTCONTROL

##?:H

BUILT-IN tIIc.

i-’6}

,- 1

560 }

620 }

2.7K }

w2kEP’”cH

q-y ,

—+

F03T CDNTROL

-u’’’”

CUiTFiULHAND

-8-

IC BLOCK DIAGRAM ,

IC601, IC602 LA5525 MOTOR DRIVER IC901 LA4160 AF AMP.

— —

Vcc CONT Vs GNO OUT

MCI 4066BCP SWITCH

Voo CONT CONT IN/OUT OUT/IN OUT/IN IN/OUT

N/OUT OUT/IN OUT/IN IN/OUT CONT CONT Vss

IC905 L78M05 VOLTAGE REGULATOR

Vcc

)+ RIPPLE FILTER PRE-

AMPLIFIER

IC904 BA6104 REMOTE CONTROL

-c II

OUTPUT1 OUTPUT2 OUTPUT3 OUTPUT4 GNO OUTPUT’3 Vm INPuT Vcc

IC907 MC14066BF FUNCTION SWITCH

IN/OUT OUT/ IN OUT/IN IN/OUT c~~oL c~jROL Vss

lN/

CKIT

=)TCONTROL

SIGNAL IN

OUTPUT

Vcm c~~ROL c~~oL IN/OUT OUT/IN OUT/IN lN/OUT

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