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SERVICE MANUAL
This set is the cassette deck section
in MHC-EX66.
Dolby noise reduction manufactured under license
from Dolby Laboratories Licensing Corporation.
"DOLBY" and the double-D symbol a are trademarks
of Dolby Laboratories Licensing Corporation.
MICROFILM
TC-EX66
Model Name Using Similar Mechanism
Tape Transport Mechanism Type
SPECIFICATIONS
STEREO CASSETTE DECK
AEP Model
UK Model
E Model
NEW
TCM-ACLM578
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Table of Contents
Related Manuals for Sony TC-EX66
Summary of Contents for Sony TC-EX66
- Page 1 TC-EX66 SERVICE MANUAL AEP Model UK Model E Model This set is the cassette deck section in MHC-EX66. Dolby noise reduction manufactured under license Model Name Using Similar Mechanism from Dolby Laboratories Licensing Corporation. Tape Transport Mechanism Type TCM-ACLM578 “DOLBY” and the double-D symbol a are trademarks of Dolby Laboratories Licensing Corporation.
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Page 2: Table Of Contents
SERVICING NOTES TABLE OF CONTENTS How to operate with a single unit. Servicing Notes ............... 2 Normally, this set is not operated with its own. The exclusive jig (J-2501-078-A) and service box (PFJ-1) are nec- GENERAL essary to operate the set with a single unit. Playing a Tape .............. -
Page 3: General
SECTION 1 This section is extracted from instruction manual. GENERAL – 3 –... - Page 4 – 4 –...
- Page 5 – 5 –...
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Page 6: Disassembly
SECTION 2 DISASSEMBLY • This set can be disassembled in the order shown below. CASE, FRONT PANEL MECHANISM DECK MECHANISM CAPSTAN MOTOR (Page 6) (Page 7) CHASSIS SECTION (Page 9) (Page 8) MAIN BOARD TRY ASS’Y (Page 7) (Page 8) Note: Follow the disassembly procedure in the numerical order given. - Page 7 MECHANISM DECK 2 four screws (BVTP3 × 8) 1 two connectors (CN803, 804) 3 mechanism deck 1 connector (CN351) 2 three connectors MAIN BOARD (CN351, 803, 804) 3 two screws (BVTP3 × 8) 6 main board 1 Slide the tray to deviation of the arrow A .
- Page 8 TRAY ASS’Y 1 screw (M1.7 × 8.2) 4 arm 576 5 tray ass’y 2 tension spring 3 boss MECHANISM CHASSIS SECTION 3 mechanism chassis section 1 four screws (BK3 × 6) 2 screw (P3 × 8) – 8 –...
- Page 9 CAPSTAN MOTOTR 7 capstan motor 2 two claws 5 Hang the belt. 2 two claws 6 three motor screws. 3 control board 4 Remove the solder of motor lead wire. 1 step screw – 9 –...
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Page 10: Mechanical Adjustments
SECTION 4 SECTION 3 ELECTRICAL ADJUSTMENTS MECHANICAL ADJUSTMENTS PRECAUTION PRECAUTION 1. Clean the following parts with a denatured-alcohol-moistened 1. The adjustment should be performed in the publication. swab: (Be sure to male playback adjustment at first.) record/playback/earth head pinch roller 2. - Page 11 Record/Playback Head Azimuth Adjustment Tape Speed Adjustment Procedure: Procedure: 1. Mode: REV playback Mode: FWD playback test tape test tape P-4-A100 WS-48B level meter frequency counter (10 kHz, – 10 dB) (3 kHz, 0 dB) 47 k Ω 47 k Ω –...
- Page 12 Playback Level Adjustment Record Level Adjustment Procedure: Setting: Mode: FWD playback REC LEVEL control: Standard record position (See page 10) test tape set to the TEST mode (REC MEMRY mode) (See page 10) P-4-L300 level meter (315 Hz, 0 dB) Procedure: 47 k Ω...
- Page 13 • Adjustment Parts Location RV251 Playback Level (R-CH) RV151 Playback Level (L-CH) [MAIN BOARD] (Component Side) CN11 J301 RV153 CN801 Record Level (L-CH) RV152 TEST Mode RV253 Record BIAS (L-CH) Record Level (R-CH) RV252 Record BIAS (R-CH) – 13 –...
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Page 14: Diagrams
SECTION 5 DIAGRAMS • IC Block Diagrams IC304 CXA1198AP CONTROL IC804 LB1641 T.S.D O.C.P MOTOR MOTOR DRIVE DRIVE FWD/REV/STOP CONTROL LOGIC IC805 LA5617 CURRENT CURRENT START ON/OFF ON/OFF LIMITER LIMITER CIRCUIT VREF VMUTE OVER HEAT PROTECT VREF ERROR VREF ~ _ 1.8V ERROR –... -
Page 17: Ic Pin Function
5-3. IC PIN FUNCTION DESCRIPTION • MAIN BOARD IC801 HD6433724E66F (SYSTEM CONTROL) Pin No. Pin Name Function PULSE Pulse signal input NO-USE – Not used (Fixed at “L”) METER-L Digital peak level meter signal input (L-ch) METER-R Digital peak level meter signal input (R-ch) AD-GND –... - Page 18 Pin No. Pin Name Function NO-USE – Not used (Open) NO-USE – Not used (Open) NO-USE – Not used (Open) TYPE IV Tape type output “H”: Metal Position TYPE II Tape type output “H”: High position TYPE I Tape type output “H”: Normal position REC MUTE Recording mute on/off control output “H”: Mute on RELAY...
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Page 19: Exploded Views
Remark 4-985-926-01 KNOB 3-939-642-01 BUTTON (PLAY) (ª, ·, p) X-3373-604-1 PANEL ASSY, FRONT 3-939-643-01 BUTTON (FF) (0, )) 4-962-708-01 EMBLEM (4-A), SONY * 11 A-2007-722-A PANEL BOARD, COMPLETE 3-939-648-01 WINDOW (TC) 1-782-490-11 WIRE (FLAT TYPE) (5 CORE) 3-939-646-01 BUTTON (REC) (CD SYNC, r REC) - Page 20 (2) CHASSIS SECTION TCM-ACLM578 supplied not supplied Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 4-977-699-11 LEG (F) * 54 A-2007-721-A MAIN BOARD, COMPLETE 4-965-822-01 FOOT * 55 3-012-563-02 PANEL, BACK * 53 3-350-847-31 HOLDER, PCB –...
- Page 21 (3) MECHANISM DECK SECTION-1 (TCM-ACLM578) M901 S901 S902 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 3-017-214-01 HOLDER 3-017-234-01 GROUND, PLATE 3-017-215-01 ARM (A) 3-017-243-01 NUT 3-017-233-01 RACK, GEAR 3-017-242-01 BUFFER 3-017-216-01 ARM (C) 3-017-232-01 GEAR (B) 3-017-213-01 CHASSIS 3-017-241-01 WASHER (1.6X4X0.5) 3-017-212-01 TRAY...
- Page 22 (4) MECHANISM DECK SECTION-2 (TCM-ACLM578) HRPE901 M902 supplied not supplied supplied not supplied Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 3-017-294-01 SCREW (S), SPECIAL 3-017-278-01 PINCH (R), SPRING * 152 CONTROL BOARD 3-017-300-01 WASHER, FLAT 3-017-273-01 LEVER AC, SPRING 3-017-255-01 PINCH ROLLER (R) 3-017-270-01 AC, LEVER...
- Page 23 (5) MECHANISM DECK SECTION-3 (TCM-ACLM578) Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 3-017-272-01 SPRING (BT) (R) 3-017-258-01 FLYWHEEL (R) 3-017-257-01 FLYWHEEL (F) 3-017-281-01 WASHER, FLAT 3-017-284-01 BELT (SUB) 3-017-256-01 ARM (PLAY) 3-017-265-01 IDLER, GEAR 3-017-275-01 LOCK, SPRING CAM GEAR P ASSY 3-017-267-01 LOCK, ARM CAM 3-017-283-01 WASHER, FLAT...
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Page 24: Electrical Parts List
SECTION 7 CONTROL MAIN ELECTRICAL PARTS LIST NOTE: • Due to standardization, replacements in the • Items marked “*” are not stocked since they When indicating parts by reference are seldom required for routine service. parts list may be different from the parts speci- number, please include the board. - Page 25 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C305 1-162-217-31 CERAMIC 56PF * CN804 1-564-715-11 PIN, CONNECTOR (SMALL TYPE)13P C306 1-126-961-11 ELECT 2.2uF 20% 50V C307 1-126-961-11 ELECT 2.2uF 20% 50V < DIODE > C310 1-162-306-11 CERAMIC 0.01uF 20% 16V...
- Page 26 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark IC804 8-759-822-09 IC LB1641 1-247-870-11 CARBON 1/4W 1-249-438-11 CARBON 1/4W 1-247-884-11 CARBON 160K 1/4W IC805 8-759-288-53 IC LA5617 1-247-872-11 CARBON 1/4W < JACK > 1-247-883-00 CARBON 150K 1/4W J301 1-770-720-11 JACK, PIN 4P (TAPE (IN/OUT))
- Page 27 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R815 1-249-393-11 CARBON 1/4W R215 1-249-429-11 CARBON 1/4W R816 1-249-429-11 CARBON 1/4W R221 1-249-429-11 CARBON 1/4W R233 1-249-429-11 CARBON 1/4W R817 1-249-429-11 CARBON 1/4W R234 1-249-429-11 CARBON 1/4W R818 1-249-429-11 CARBON...
- Page 28 TC-EX66 PANEL Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark A-2007-722-A PANEL BOARD, COMPLETE MISCELLANEOUS ********************* ************* 4-932-810-01 CUSHION (FL) 4-946-899-01 HOLDER (FL) 1-782-490-11 WIRE (FLAT TYPE) (5 CORE) 1-773-257-11 WIRE (FLAT TYPE) (27 CORE) < CAPACITOR >...
- Page 29 TC-EX66 AEP Model UK Model SERVICE MANUAL E Model SUPPLEMENT-1 File this supplement with the service manual. Subject: Additton of service parts on CONTROL board (SPM-98013) PARTS LIST(CONTROL BOARD) • Items marked “*” are not stocked since they are seldom required for routine service. Some delay should be anticipated when ordering these items.