Technics RS-TR474

INITIAL SETTING UP FOR OVERALL GAIN
AND OVERALL FREQUENCY RESPONSE
eLoad a Normal blank test tape (QZZCRV2) into the deck under test.
- Press the ATC button, then the REC button. The display will flash [iJ
slowly. (At this point the deck automatically adjusts the overall gain
and frequency response.) a
¢ After the above setting, the overall gain for selection of CrO2 and Metal
Step ? tape will be automatically set by the ROM and stored in the ROM.
Note: If adjustment of OVERALL GAIN or OVERALL FREQUENCY
RESPONSE faiis, the display will flash PU repidly.
After a successful! adjustment, the display will no longer show
Step 10 Remove the shorting clip from the Test Mode terminals. The FL display
will stop blinking. — -
Note: If the microprocessor is replaced, it is not necessary to replace (or write data to) the EEPROM.
¢ EEPROM MAP
Se ee ee ae ee
ieee cel enc ee re ee
Note: At an address with no data value indicated (e.g. 01 — —), the ROM operates
normally irrespective of the kind of the data supplied.