Sony MZ-R90/R91 User Manual
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FB501
C530
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AP508
AP504
AP505
R530
R529
C529
S804
HOLD
AP1001
L502
FB503
FB502
FB504
BP801
AP519
AP830
AP521
OFF ON
R506
R503
R508
R509
R510
C537
R935
AP5209
AP806
C801
AP911
AP807
AP907
AP834
AP517
X801
AP511
AP516
12
09
AP506
10
32
AP804
AP803
AP507
805
IC802
IC801
8
1
5
4
–
MAIN BOARD (SIDE B)
–
BP801
SECTION 4
TEST MODE
4-1. OUTLINE
• This set provides the Overall adjustment mode (Assy mode) that
allows CD and MO disc to be automatically adjusted when in
the test mode. In this overall adjustment mode, the protect switch
is detected to judge the disc, CD or MO, and each adjustment is
automatically executed in order. If a fault is found, the system
displays its location. Also, the manual mode allows each indi-
vidual adjustment to be automatically adjusted.
the test mode. In this overall adjustment mode, the protect switch
is detected to judge the disc, CD or MO, and each adjustment is
automatically executed in order. If a fault is found, the system
displays its location. Also, the manual mode allows each indi-
vidual adjustment to be automatically adjusted.
• The keys in the description refer to the keys on both set and
remote commander unless otherwise specified. Though LCD
display shows the LCD of the remote commander, same con-
tents are also displayed on the LCD of the set.
display shows the LCD of the remote commander, same con-
tents are also displayed on the LCD of the set.
4-2. TEST MODE
4-2-1. Setting Method of Test Mode
There are two different methods to set the test mode:
1 Short BP801 (TEST) on the MAIN board with a solder bridge
1 Short BP801 (TEST) on the MAIN board with a solder bridge
(connect pin y; of IC801 to the ground). Then, turn on the
power.
power.
2 In the normal mode, turn on the HOLD switch on the set. While
pressing the
x
key on the set, press the following remote
control keys in the following order:
>
t
>
t
.
t
.
t
>
t
.
t
>
t
.
t
X
t
X
4-2-2. Operation in Setting the Test Mode
• When the test mode becomes active, first the display check mode
is selected. (Press
x
key once, when the display check mode
is not active.)
• Other mode can be selected from the display check mode.
• When the test mode is set, the LCD repeats the following dis-
• When the test mode is set, the LCD repeats the following dis-
play.
LCD display
•
When the
X
key is pressed and hold down, the display at that
time is held so that display can be checked.
4-2-3. Releasing the Test Mode
For test mode set with the method 1:
Turn off the power and open the solder bridge on BP801 (TEST)
on the MAIN board.
Turn off the power and open the solder bridge on BP801 (TEST)
on the MAIN board.
Note: Remove the solders completely. Remaining could be shorted with
the chassis, etc.
For test mode set with the method 2:
Turn off the power.
Turn off the power.
Note:
If electrical adjustment (see page 20) has not been finished com-
pletely, always start in the test mode. (The set cannot start in nor-
mal mode.)
pletely, always start in the test mode. (The set cannot start in nor-
mal mode.)
Microprocessor
version
display
version
display
All off
All lit
xxxxxxxxx
V0.000
888
001
F1SHUF
REC