SHARP SP2109 Technical Report

Date: Mar. 11, 1997

COPIER(OPTION) : SF-D20

No. : SP-2109

CHANGE IN THE DESK MAIN PWB CARRIED OUT AS A MEASURE TO IMPROVE PRODUCTIVITY.

1.Model Name: SF-D20/21

2.General: An interchangeable main PWB had been used in the models listed above, but taking

the model types into consideration the unnecessary parts have been eliminated from the main PBS of each model. This change has been carried out as a measure to improve productivity.

3.Description: Old → CPWBF0938FC51 (Interchangeable main PWB)

New →CPWBF0938FC52 CPWBF0938FC53

(Main PWB for the SF-D19/D20 models) (Main PWB for the SF-D21 model)

Other changes that have been carried out:

Please refer to the parts list shown on the next page for information concerning changes that have been carried out in the resistors and capacitors.

4.Action: From 1996 August production.

SHARP CORPORATION Reprography Division

1/2

Green

Ref.

No.

Model

name

Version P/G No.

56 -5

61 -5

67 -901

Current parts New parts

Parts name

Parts code Parts code

CPWBF0938FC51 CPWBF0938FC52 BM Desk main PWB

Price

rank

Effec-

tive

time

Inter-

change-

ability

Note

SF-2022 SF-2027

67 -6 QSW-P0387FCZZ

67 -7 QSW-S5127NCZZ Dip SW

67 -8 RC-QZ0244FCZZ Capacitor D20 only

67 -22 —

67 -24 VHDDSS133HV-1

67 -25 VHD1S2584//-1

67 -27

67 -33 VRD-RC2EY102J Resistor

All

67 -34 —

67 -35 VRD-RC2EY123J

67 -36 VRD-RC2EY183J

67 -37 VRD-RC2EY222J

67 -39

67 -40 VRD-RC2EY393J

67 -43 VRD-RC2EY513J

VHILM393P//-1 IC

VRD-RC2EY392J

Discontinued —

Q’ty: Change

VCKYPA1HB103K

Discontinued —

Q’ty: Change

VRD-RC2EY103J

Discontinued — Resistor D20 only

Tact SW

AA Capacitor

Diode

AA Resistor

1st lot

’96/8

D20 only

Q’ty: 6 → 5

D20 only

Q’ty: 21 → 18

2/2

67 -42

67 -44 VRS-RE3DAR33J

67 -45 VRS-RE3DAR33J

67 -46 VS2SB1020-/-1

67 -47 VS2SB1185-EFC

61 -5

67 -901

1. Interc ha ng ea bl e. 4. Not in te rc ha ng ea bl e.

2. Current type can be used in place of new type. New type cannot be used in place of current type.

3. Current type cannot be used in place of new type. New type can be used in place of current type.

Parts m a r ked w it h “ ” i s imp or t an t fo r m ai n ta ini ng t he s a fe ty of the s e t. B e sur e t o rep l ac e t he se pa r ts wi th

speci fied ones fo r m aintaini ng t he s a fe ty an d pe rformance of the set .

VRD-RC2EY683J

Discontinued — Transistor D20 only

CPWBF0938FC51 CPWBF0938FC53 BM

5. Interchangeable if replaced with same types of related parts in use.

6. Others .

Desk main PWB (D21)