Sony R501PC service manual 12HrefPw, 12###S, 13WritPw, 13###S, Configuration of overall adjustment

MZ-R501/R501PC

8.Press the N key, and set the laser CD read adjustment mode (item number 012).

This set LCD display

012HrefPw

9.Press the [ENTER] key and set the address & adjusted value display (see page 13).

This set LCD display

012###S

###: Address

: Adjusted value

10.Check that the laser power meter reading is 0.97 ± 0.10 mW.

11.Check that the voltage both ends (TP (+) and TP (–)) of resis- tor R501 at this time is below 44 mV.

12.Press the N key, and set the laser MO write adjustment mode (item number 013).

This set LCD display

013WritPw

13.Press the [ENTER] key and set the address & adjusted value display (See page 13).

This set LCD display

013###S

###: Address

: Adjusted value

14.Check that the laser power meter reading is 4.95 ± 0.50 mW.

15.Check that the voltage both ends (TP (+) and TP (–)) of resis- tor R501 at this time is below 80 mV.

16.Press the x key to quit the manual mode, and activate the test mode (display check mode).

Checking and Connection Location: MAIN board

Adjustment/checking and Connection Location:

MAIN BOARD (SIDE B)

TP(–)

5-8. Overall Adjustment Mode

• Configuration of overall adjustment

Overall adjustment mode		. key
	(Title display)
	N key
	Protect switch
	ON	CD overall
		adjusting
	All item		NG item exists
	OK		or x key
			CD overall
			adjustment
	x key		NG
		CD overall
	x key	adjustment
		OK
	Protect switch	N key
	OFF
	> key	MO overall
		adjusting
			NG item exists
			or x key
			MO overall
			adjustment
	x key		NG
		MO overall
		adjustment
	x key	OK
ENTER	key		Electrical
			offset
x key			adjustment
END SEARCH key			Power supply
			adjustment
x key			auto item feed

Test mode (display check mode)

Note: Adjust the CD first, when performing adjustment.

TP901

(VL)

TP902(VC)

TP910(GND)

R501

TP(+)

20