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!
Very good quality scan of the document. I am very pleased with what I got.
Text excerpt from page 6 (click to view)
ADJUSTMENTS
1. 2. 3. 4.
E-F BALANCE ADJUSTMENT Connect oscilloscope to test point TP502 and TP503 on CD PCB. Traverse Waveform Press power switch on. Put test disc(TCD-781) in and press play button then pause button. 0V Pressing Fast Forward button, adjust RV502 to get that the oscilloscope waveform is symmetrical on the bottom in relation to 0V, and check this level. * Design and specifications may be subject to change without notice.
A
B
3. TAPE SECTION
Output Level Measurement Point R-CH Input Level Measurement Point L-CH 47 kohm 47 kohm VTVM Input Point Scope
Test Tape be used
Tape MTT-111N MTT-114N MTT-5511 Contents 3 KHz 10 KHz Blank Use Tape Speed Adjustment Head Azimuth Adjustment Record Frequency Property
1. 2. 3. 4. 5.
HEAD ADJUSTMENT (AZIMUTH) 10KHz test tape(example: MTT-114N) must be used for this adjustment. Connect to VTVM or oscilloscope to the headphone jack or speaker terminal. Press the play button. Adjust the azimuth by using a screw driver to maintain the max. L&R output voltage. Adjust tape A(1), tape B(2) respectively, Please secure the azimuth position by using locking paint.
RECORDING BIAS OSCILLATOR FREQUENCY ADJUSTMENT 1. Connect the frequency counter to TP603, GND. 2. Press the REC button. 3. Adjust L603 to obtain 80 KHz±100Hz
