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Clear and complete service manual. Easy now to restore my old Kenwood KD-1500.
Thanks a lot.
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Thanks for this "hard to find" service manual. This Sony PS212A is a very good turntable that needed to be restored !
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Excellent quality on these manuals. Same as having the original printed manual and incredibly useful when doing a custom install like me. Keep it up on the good work.
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This is an excellent information source. Great quality and tons of info regarding technical service for the Technics SH8065.
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5 stars on this manual since it is the complete version, not the half manual you find free for download all over the web. Good job.
MJ-L11
7 Defocus Adjustment
It is possible from steps 3 of this item in the state of step 5 of 6 .
Step No.
1 2 3
Operation Keys and Operation Method
In the Power ON state, selecting MD function,shortcircuit the "MECHA and GNG pin". Insert the test disc GGF1328 (MMD-212). Press the SYSTEM MENU(or MENU) key.(until "deFO AJST" is displayed.) Press the 6(or MD)key. of Defocus Value j
Display
EJECT LOADING GRT AJST deFO AJST PEG : FESpp : of000j0150 Test mode
Status
Remarks
4
Defocus mode is entered, and after automatic execution of normal adjustment.
5 6
Check the jitter value and end the adjustment when the intermediate jitter value is 29 nsec or less. Press the ¶ (REC)of main unit key. of+04 j0130 The C1 error with application of a focus offset of about 0.4µm on the + side is displayed. The jitter value (J+) at this time is recorded. The C1 error with application of a focus offset of about 0.4µm on the � side is displayed. The jitter value (J�) at this time is recorded.
7
Press the ¶ (REC)of main unit key.
of-04 j0120
8
When J+ is larger than J-, press the ¶ (REC) of the main unit key when the focus offset is applied up to +0.4µm. (Do nothig when J- is larger than J+.)
of+04 j0130
9
Change the value with 1 and ¡ keys until the value becomes the same. Press the 6(or MD)key.
of+04 j0132 of+03 j0125 of+02 j0120 COMPLETE
10
When the smaller offset of the jitter value has been corrected mistakenly, press the ENTER(or SET) key and return to step 4. The mean value of the changed set value and the offset of the other setting limit is written into the EEPROM as the compensation offset. Release from the test mode.
11
Turn off the power of the DVD tuner(or CD tuner).
Good Bye
Connection Diagram
Jitter Meter
LEVEL JITTER
MD CORE MAIN UNIT
SIDE A
EFM MON
GND
REFO
36
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