Toshiba DP4500 Service Handbook page 63

<Keys to press>
[0][5]
[POWER]
[Digital keys] : Enter the code.
[START]
[UP] or [DOWN] : Adjust the value "YYY" to satisfy the following table.
Code
Adjustment value
Code
Adjustment RMS value 1267 ±115mV
Value
[SET] icon : Adjusted value "YYY" is stored in the BC-RAM.
or
[INTERRUPT]
Return to
the other adjustment
mode.
[0][9] : To exit the adjustment mode.
Note: The "adjustment value" indicates the output voltage of the D/A converter (IC47 and IC48) on the logic PC
board. The relation between the output voltage and adjustment value is as follows:
Output voltage = (Adjustment value + 1)
DP4500/3500 ADJUSTMENT
<Display>
100%
TEST MODE
100%
TEST MODE
YYY
Current set value
Main
charger bias charger
–790 ±5V –521 ±5V
Separation
Center value
231
Mean value 1235 ±112mV
100%
TEST MODE
to enter
256
A
XXX
Developer Transfer charger
Center value
210 205
413 ±45mV
A
5 V
2 - 24
A3
A3
Code No.
221
A3
December 2000 © TOSHIBA TEC