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THANK YOU FOR A GOOD TRANSACTION, NICE COPY, CLEAR
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Very Good! All the diagram are easy to read, and its complete.
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This was an excellent source of detailed assembly information on a device which is at least 12 years old. A very lucky find, coupled with great service.
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Excellent Service Manual and best price on the Internet. This Service Manual covers everything you could ever need including full circuit schematics, component layout diagrams, stripdown procedure and full parts list/breakdown. I needed this to carry out a modification to one of these headunits and this manual covered everything I needed. Fast delivery, processed within a few hours.
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Thought I would never find a copy of the Technics SX-EN2 Service Manual until I found Owner-Manuals.com. Price was very fair and I received the download promptly. While a photocopy, it is quite readable and includes all the pertinent information and diagrams. Thank you Owner-Manuals!
TCM-500DV SECTION 4 MECHANICAL ADJUSTMENTS
1. Clean the following parts with a denatured-alcohol-moistened swab: record/playback/erase head pinch roller capstan rubber belt 2. Demagnetize the record/playback/erase head with a head demag netizer. 3. Do not use a magnetized screwdriver for the adjustments. 4. The adjustments should be performed with the rated power supply voltage (3 V) unless otherwise noted. Torque Measurement
Mode FWD CQ-102C FWD Back Tension REV REV Back Tension FF, REW CQ-201B more than 4.91 mN�m (more than 50 g�cm) (more than 0.69 oz�inch) 0.05 � 0.49 mN�m (0.5� 5 g�cm) (0.007 � 0.069 oz�inch) input level output level Mic earphone �60dBs 16�, �20dBs Torque Meter Meter Reading 1.97 � 3.92mN�m (20 � 40 g�cm) (0.28 � 0.55 oz�inch)
SECTION 5 ELECTRICAL ADJUSTMENTS
Setting: � Supplied voltage: 3 V (DC) � Switch and control position VOL contorl (RV101) : mechanical center REC SPEED switch (S401) : normal (4.8cm/s) PAUSE switch (S601) : OFF SPEED CONTROL (RV201) : center click VOR switch (S402) Regulation Level : OFF Tape Speed Adjustment Mode: playback
test tape WS-48A (3 kHz, 0 dB) 16 � set
+ �
Ver 1.2
frequency counter
EAR jack (J102)
Procedure: 1. Set [REC TIME] switch (S401) to NORMAL (4.8 cm/s) position, and playback the tape (WS-48A) . 2. Adjust RV602 so that frequency counter reading becomes 3,010 Hz. 3. Set [REC TIME] switch (S401) to DOUBLE (2.4 cm/s) position. 4.Playback the tape from the beginning for two minutes, then adjust RV601 so that frequency counter reading becomes 1,505 Hz.
Test Tape
Type WS-48A Signal 3 kHz, 0 dB Used for tape speed adjustment
Tape Tension Measurement
Mode FWD Tension Meter CQ-403A Meter Reading more than 50 g (more than 1.76 oz)
0 dB=0.775 V Confirm that deflection of the frequency counter reading between the beginning and the end of tape is within 2% (NORMAL: approx. 60 Hz, DOUBLE: approx. 30 Hz) .
Adjustment Location: � MAIN BOARD (Conductor Side) �
RV601 Tape Speed Adjustment (Double Speed)
RV602 Tape Speed Adjustment (Normal Speed) 20 11
IC601
1 10
7
7
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