XV-M565BK/M567GD
1-21
Check points for each error
(1) Spindle start error
*Defective spindle motor
Does the resistance between pins nos. 5 and 7 of CN102 register 6 to 10 ?
(The power supply is turned off and measured.)
*Hall element: Is square wave output with the voltage of CN102 pin no. 2 during rotation?
In either case, replace the mechanical unit.
*Defective BTL driver (IC271)
Is there a voltage output between pins nos. 5 and 7 of CN101?
Is IC271 "25" at "H" level (START)?
Servo IC --- Is control signal sent to the motor driver ?
IC201 "120,121" : Duty is 50% during stop, but varies during rotation (greatly varies at start).
--- If not sent, pattern or servo IC (IC201) is defective.
Is FG input to servo IC ?
Observe FG wave from IC271 "41". --- If not output, pattern, IC271 or IC201 is defective.
(2) Disc Detection, Distinction error (no disc, no REFNV)
* Laser is defective.
* Front End Processor is defective (IC101).
* APC circuit is defective. --- Q101.
* Pattern is defective. --- Lines for CN101 "2,4,6" and "14".
Lines for between IC201 "2" and IC101 "2"(LDONA),
between IC201 "3" and IC101 "1" (LDONB).
* Servo IC is defective (IC201).
* Does signal flow to IC 101 pin no. 79 and output to (RFINP)?
* IC101 --- For signal from IC101 to IC301, is signal output from IC101 "88" (TS1),
IC101 "69" (RFENV) and IC101 "90" (FS)?
(3) Traverse movement NG
* Traverse motor is defective.
Is there a voltage output between "1" to "6" and "3" to "4" of CN102?
* BTL driver is defective.
Is there a voltage output at Pins nos. "12,13,14" and "15" of IC271?
The voltage of the MUTE2 terminal pin no. "25" of IC271 becomes (H).
Is the driving voltage output on pin nos. "104" and "105" of the servo IC?
--- The servo IC defective or the patterns are incorrect.