Sony MZ-R5ST Service Manual page 26

Station Block
Outline
The following operation of the machine can be checked on the LCD
display when the machine enters the test mode.
•
ON/OFF control of the charging circuit of the machine (MD)
•
ON/OFF control of the charging circuit of the station
•
Motor control of the station attachment section of the machine
•
Accepting the various key inputs
How to enter the test mode
There are two methods to enter the test mode:
Method 1. The method of enter the test mode by shorting the TEST
soldering bridge
1. Connect the solder bridge TAP901 (TEST) on the RADIAL
board by soldering.
2. Turn on the main power.
3. Press the RESET switch.
Method 2. The method of enter the test mode by pressing the keys
1. Turn on the main power of the machine.
2. While depressing the z key, press the keys + , + , = ,
= , + , = , + , =, P, Pin this order.
How to exit the test mode
1. When the solder bridge TAP901 is shorted to enter the test mode,
turn off the main power and remove soldering from the TAP901
to open the solder bridge. Press the RESET switch.
2. When the machine has entered by pressing the key, turn off the
main power of the machine to exit the test mode. Press the
RESET switch.
Test mode configuration
Test mode of this machine consists of the following five modes.
Version check
= key
Audio check
= key
Motor check
= key
Charge check
= key
* The machine enters forcibly to the initial check of the motor
check mode when the RELEASE c slide switch is moved in
the arrow direction during the test mode. However, this slide
switch is used to switch ON or OFF of charging when the
machine checks the charging during the charge check mode.
+ key
+ key
+ key
+ key
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Version check mode
•
The machine enters the version check mode when the test mode
is established.
•
The version check mode is used to check the software version
number of the station microprocessor and to check the LCD
segments that there are no defective segments.
•
The LCD display repeats the LCD screens starting from the
" Version check" screen → LCD all segments turning on check
screen → LCD all segments turning off check screen at a
specified cycle. (Less than one second)
•
Cyclic repetition of the LCD screens can be tentatively stopped
when the P key is pressed. The tentative stop of LCD displays
can be released by pressing the P key again.
Version check screen
Version Check
Station
LCD all segments turning on check screen
Software version check
All segments turning on check
All segments turning off check
p Key
p Key
ver 1.00
· Key
Key check
· Key
Slide switch check
· Key