Panasonic SJ-MR230DGK specifications Schematic Diagram Notes, Schemtic Diagram Notes

“F17”---This indication appears when the Down switch fails to turn ON since the magnetic head fails to move up/down normally (Due to trouble of the magnetic head or trouble of the magnetic head up/down motor)or the magnetic head P.C.B. is out of position or a foreign matter has mixed in or for some other reason.

In such a case, check the peripheral parts of the magnetic head, repair or replace defective parts with normal ones.

9.Caution for Replacing EEPROM IC (IC502) and System Control IC (IC501)

Please be sure to perform “Laser power adjustment”, “Off-set automatic adjustment”, “Playback -only disc auto-adjustment” and “Magneto-optical disc auto-adjustment” after exchangingeither EEPROM IC (IC502) or the system control IC (IC501). (Please refer to “6. Measurements and Adjustment” about the adjustment method)

10. Schematic Diagram Notes

10.1. Schemtic Diagram Notes

This schematic diagram may be modified at any time with the development of new technology.

Notes:

: Magnetic head up switch (M.HEAD UP) S1

: PROTECT det., OP/ CL switch S501

: Play / record / pause switch () S801

: Recording pause / LP recording switch (REC S802 / LP MODE)

: Stop / operation off switch (OPR OFF) S803

: Forward skip switch () S804

: Reverse skip switch () S805

: Volume + switch (VOL+) S806

: Volume - switch (VOL-)

S807