Sony MZ-R55 Service Manual page 15

• Clock Operation Check
1. For the mode No. of 221, operation c hec k is perf ormed.
It is determined as OK if at 11 years, 11 months, 11 days, 11
hour s, 11 min utes and 11 seconds or not the default v
2. For the mode No. of 221, pressing
data stored in EEPR OM and initializ e the c loc k data.
Note) The c loc k should be set when the o
is completed as OK. The write data is to be at 11 y
November 11 da ys, 11 hour s, 11 min utes and 11 seconds.
(4) Power Mode
Mode No. Test Description Indication value Remark
300 POWER test
310 POWER SUPPLY
311 DC IN
312 DC IN + Ni-Cd
313 Ni or AM3
314 AM3
320 CHG TEST
321 Charging start
1. Go into the test mode.
+ ke y or VOLUME + and VOLUME + and VOL-
2. Press
UME + and VOLUME + in this turn to set the po
POWER
XX XX
3. Press the ke ys belo w to c hang e the mode No.
( : Increases the one place.
p : Sets the one place to 0.
This ke y brings the ten place to 0 if the one place is
0.
VOLUME + : Increases the ten place by 10 if the one place is 0.
Increases the adjustment v
is non-zero.
VOLUME – : Decreases the ten place by 10 if the one place is 0.
Decreases the adjustment v
non-zero.
Note) With the mode n umber 310 selected,
transfer to the mode number (311 to 314) for the currently
operating po wer.
With the mode n umber 300 selected,
set the sleep mode . Pressing
• How to Check in the Power Mode
1. For the mode n umber s of 311 to 314, the v olta ge of the currentl
operating po wer is displa yed.
alue .
P ke y will c lear the resume
verall adjustment mode
ear s,
+B voltage value
+B voltage value
+B voltage value
+B voltage value
wer mode .
Adjustment value
Mode No.
(Lower two digits are displayed.)
alue if the one place
alue if the one place is
( ke y will
pressing
P ke y will
pressing
p ke y will release it.
4-5. OVERALL ADJUSTMENT MODE (ASSY MODE)
• How to Adjust in Assy Mode
1. Go into the test mode.
= or VOLUME – ke y.
2. Press
Assy Mode
40
3. Inser t the test CD (TD YS-1) or an a vailab le SONY CD .
4. Press ( ke y. The system discriminates between CD and MO
and performs automatic adjustment for CD.
CD RUN
51
• CD Automatic Adjustment
Mode No.
052 CD FE balance adjustment
053 CD ABCD level adjustment
055 CD focus gain
056 CD tracking gain
057 CD focus bias
5. If the result of automatic adjustment is OK,
play appears:
CDmode
00
6. If the result of automatic adjustment is NG,
play appears:
CDmode
55 7F
y
– 15 –
XX
Mode No. under adjustment
Adjustment Description
the f ollo wing dis-
OK
the f ollo wing dis-
NG
Result of adjustment
NG mode No. (lower two digits)