Minolta Di620, Manual, Page: 321 / 466

D-10
1) Readjustments and re-settings to be made when the RAM Board or ATDC Sensor has been
replaced
1. When the RAM Board has been replaced:
•
Clear memory, then make the necessary settings again for Tech. Rep. Choice, User’s Choice, and
Adjust.
2. When the ATDC Sensor has been replaced:
•
Discard the developer which had been used until the ATDC Sensor was replace; then, charge fresh
starter and run F8 (ATDC Sensor Adjustment) and F5 (AIDC Sensor Adjustment).
Symbol Part Name Removal Procedure
PWB-A Master Board Remove No. 25.
→
Remove the Master Board cover.
PWB-B Memory Board
Remove No. 8, 9.
→
Remove the IR Unit fixing bracket.
→
Remove the MSC Board cover.
PWB-C Power Supply Board Remove No. 25.
PWB-D Noise Filter Board
Remove No. 25.
→
Remove the circuit breaker assy.
→
Remove mounting bracket.
PWB-F Drawer S/P Board Remove No. 25.
PWB-J PHC Board Slide out the IR Unit.
→
Remove the PH Board cover.
PWB-O
Toner Replenishing
Motor Control Board
Remove No. 25.
PWB-P
Wire Cleaning Motor
Drive Board
<PC Drum Charge>
Slide out the PC Unit.
→
Remove the PC Unit front cover.
<Image Transfer/Paper Separator>
Slide out the Transport Tray Assy.
→
Remove the Transport
Unit cover.
→
Remove the Fusing Unit front cover.
PWB-S
Tech. Rep. Setting
Switches Board Swing down No. 2.
→
Remove the control panel lower
cover assy.
PWB-T
Synchronizing Motor
Control Board
Remove No. 25.
PWB-W ECC Board
Remove No. 8, 9.
→
Remove the IR Unit fixing bracket.
→
Remove the Memory Board cover.
PWB-Y RAM Board Remove No. 25.
PWB-Z
Duplex Unit Turnover
Motor Control Board
Slide out all paper drawers.
→
Remove No. 17, 23.
→
Remove the Turnover Motor cover.
→
Remove the Turn-
over Motor Assy.
→
Remove the Turnover Motor.
PWB-IA CCD Board See p. D-31.
PWB-IB Image Processing Board Remove No. 4.
→
Remove the board cover.
PWB-IC SCP Board Remove No. 25.
UN1 Control Panel Remove No. 3.
UN4 ATDC Sensor See p. D-56.
UN5
Polygon Motor Control
Board
Slide out the IR Unit.
UN6 AIDC Sensor See p. D-43.
UN10
Exposure Lamp Inverter
Unit
Remove No. 25.
→
Remove the board cover.
HV1
PC Drum Charge/Devel-
oping Bias HV
Remove No. 25.
HV2
Image Transfer/Paper
Separator HV
Slide out the Transport Tray Assy.
→
Remove the Transport
Unit cover.
→
Remove the Fusing Unit front cover.
→
Remove the Suction Deck.
→
Remove the Fusing Unit.
→
Remove the base plate.
PU1 DC Power Supply Remove No. 22.
→
Remove the Turnover Unit Assy.