Kenwood HM-332, Руководство по обслуживанию

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• Canceling the test mode
When the POWER button is pressed, the test mode is canceled, and the POWER OFF state is set.
• Test Mode
1. AUTO pre-adjustment mode • Automatic pre-adjustment is performed. (After adjustment the grating adjustment mode is set.)
• The adjustment value is output with the aid of system controller interface.
2. AUTO adjustment mode • Automatic adjustment is performed.
• The adjustment value is output with the aid of system controller interface.
• Continuous playback is performed. (Error rate indication, jump test)
4. RESULT sub-mode • The measurement value, set value and calculated value are indicated.
• The set value is changed manually (in servo OFF state).
3. AUTO FOCUS BIAS adjustment • Focus bias adjustment is performed auto matically.
5. RESULT mode (final adjustment) • The set value (after calculation) is indicated.
• The set value is changed manually (in servo OFF state).
6. MANUAL pre-adjustment mode • RF side manual adjustment is performed.
• Focus and tracking signal ATT manual adjustment is performed.
• Focus and tracking signal offset setting is performed.
7. MANUAL adjustment mode • Focus and tracking signal ATT manual adjustment is performed.
8. EEPROM setting mode • EEPROM setting
9. TEST-PLAY mode • Continuous playback from the specified address is performed.
• C1 error rate measurement.
10. TEST-REC mode • Continuous recording from the specified address is performed.
• Change of record laser output (servo gain is also changed according to laser output)
11. EJECT mode • TEMP setting (of EEPROM setting)
1. AUTO pre-adjustment mode (Low reflection disc only)
Step No. Setting Method Remarks Display
Step 1 Test mode STOP state [ t s m e ]
Step 2 Press once the SKIP DOWN( ) button. AUTO pre-adjustment menu [ AUT_ YOBI_ _ _ ]
Step 3 Press once the MD PLAY button. The slide moves to the innermost periphery, and automatic [ : _
_
_ _ _ _ _ ]
pre-adjustment is started.
During automatic adjustment changes as follows.
HAo RFg SAg SBg PTG PCH GTG GCH RCG
SEG RFG SAG HAO HEO TCO LAO
End of adjustment If adjustment is OK, Step 4.
If adjustment is NG, Step 5.
Step 4 Grating adjustment, [ _ C O M P L E T E _ ]
adjustment value output
Press once the MD STOP button. STEP 2
Step 5 Adjustment value output [ AUT YOBI ]
Press once the MD STOP button. STEP 2 AUTO pre-adjustment menu
: Adjustment name, : Address
2. AUTO adjustment mode
Step No. Setting Method Remarks Display
Step 1 Test mode STOP state [ t s m e ]
Step 2 Press the SKIP DOWN( ) button two times. AUTO adjustment menu [ A U T O _ A J S T _ ]
Step 3 Press once the MD PLAY button. The slide moves to the innermost periphery, and automatic [ : _ _ _ _ _ _ ]
adjustment is started.
In case of high reflection disc changes as follows.
PEG HAG
case of low reflection disc changes as follows.
PEG LAG GCG GEG LAG
End of adjustment If adjustment is OK, Step 4.
If adjustment is NG, Step 7.
Step 4 Adjustment value output
[ C O M P L E T E ]
Press the MD PLAY button. STEP 5
Press the MD STOP button. STEP 2
Step 5
Continuous playback (groove section) [ a c ]
Step 6 Press the MD STOP button. STEP 2 AUTO adjustment menu
Step 7 Adjustment value output [ C a n ' t _ A D J . ]
Press the MD STOP button. STEP 2 AUTO adjustment menu
: Adjustment name, : Measurement value, : Address
RXD-M32
7
CIRCUIT DESCRIPTION