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FX-M8717ZT
7. GENERAL INFORMATION
7.1 DIAGNOSIS
7.1.1 TEST MODE
-
Error Messages
If a CD is not operative or stopped during operation due to an error, the error mode is turned on and cause(s) of the
error is indicated with a corresponding number. This arrangement is intended at reducing nonsense calls from the
users and also for facilitating trouble analysis and repair work in servicing.
(1) Basic Indication Method
1) When SERRORM is selected for the CSMOD (CD mode area for the system), error codes are written to DMIN
(minutes display area) and DSEC (seconds display area). The same data is written to DMIN and DSEC. DTNO
remains in blank as before.
2) Example
CD ERRxx
(2) Error Code List
Code
Class
Displayed error code Description of the code and potential cause(s)
Err3
Electricity
Carriage Home NG
CRG can't be moved to inner diameter.
CRG can't be moved from inner diameter.
→
Failure on home switch or CRG move mechanism.
Err1
Electricity
Focus Servo NG
Focusing not available.
→
Stains on rear side of disc or excessive vibrations on REWRITABLE.
Electricity
Spindle Lock NG
Spindle not locked. Sub-code is strange (not readable).
→
Failure on spindle, stains or damages on disc, or excessive vibrations.
Subcode NG
A disc not containing CD-R data is found. Turned over disc are found,
though rarely.
→
Failure on home switch or CRG move mechanism.
RF AMP NG
An appropriate RF AMP gain can't be determined.
→
CD signal error.
Electricity
Setup NG
AGC protection doesn't work. Focus can be easily lost.
→
Damages or stains on disc, or excessive vibrations.
Electricity
Search Time Out
Failed to reach target address.
→
CRG tracking error or damages on disc.
Err4
System
Power Supply NG
Power (VD) is ground faulted.
→
Failure on SW transistor or power supply (failure on connector).
Remarks: Mechanical errors are not displayed (because a CD is turned off in these errors).
Unreadable TOC does not constitute an error. An intended operation continues in this case.
A newly designed head unit must conform to the example given above.
Upper digits of an error code are subdivided as shown below:
1x: Setup relevant errors, 3x: Search relevant errors, Ax: Other errors.
Summary of Contents for FX-M8717ZT
Page 4: ...4 FX M8717ZT 2 1 EXTERIOR 1 2 D E C 2 EXPLODED VIEWS AND PARTS LIST ...
Page 6: ...6 FX M8717ZT 2 2 EXTERIOR 2 2 A B ...
Page 8: ...8 FX M8717ZT 2 3 CD MECHANISM MODULE F G ...
Page 10: ...10 FX M8717ZT H J I 2 4 CASSETTE MECHANISM MODULE ...
Page 29: ...29 FX M8717ZT ...
Page 34: ...34 FX M8717ZT 1 2 3 4 1 2 3 4 D C B A MAIN UNIT A A ...
Page 35: ...35 FX M8717ZT 5 6 7 8 5 6 7 8 D C B A A SIDE B ...
Page 36: ...36 FX M8717ZT 1 2 3 4 1 2 3 4 D C B A 4 2 FM AM TUNER UNIT B SIDE A B FM AM TUNER UNIT A ...
Page 37: ...37 FX M8717ZT 1 2 3 4 1 2 3 4 D C B A B B FM AM TUNER UNIT SIDE B ...
Page 39: ...39 FX M8717ZT 1 2 3 4 1 2 3 4 D C B A C SIDE B A CN701 KEYBOARD PCB C ...
Page 41: ...41 FX M8717ZT 1 2 3 4 1 2 3 4 D C B A F SIDE B CLAMP CONTROL UNIT S8TECU F ...
Page 61: ...61 FX M8717ZT Grating waveform Ech Xch 20mV div AC Fch Ych 20mV div AC 45 0 75 60 30 90 ...
