ER-A570 (serv.man23). Change to Control EPROM ERA57R1 - Sharp ECR Technical Bulletin (repair manual). Page 2

Ref
No.

Model
name 

Version

P/G No.

Current parts

New parts

Parts name

Effec-
tive
time

Inter-
change-
ability

Note

Parts code

Parts code

Price

rank

1

ER-A61R1

V

—

VHI27020RAN1A

VHI27020RAN1B

BF

ROM

May ’96

∗

—

2

ER-A57R1

VHI27020RAP1A

VHI27020RAP1B

BF

1. Interchangeable.

4. Not interchangeable.

2. Current type can be used in place of new type.

New type cannot be used in place of current type.

5. Interchangeable if replaced with same types of

related parts in use.

3. Current type cannot be used in place of new type.

New type can be used in place of current type.

6. Others.

∗

Interchangeability of the parts changed : Interchangeable with those of superior models

•

ER-A61R1 (For V)

A B version ROM is usable in place of an A version ROM.

An A version ROM is unusable in place of a B version ROM.

•

ER-A57R1 (For V)

A B version ROM is usable in place of an A version ROM.

An A version ROM is unusable in place of a B version ROM.

Adaptability of an option ROM and an accessory ROM:

A new version ROM VHI27020RAN1B and a current Main ROM VHI27040RAI1C,

VHI27040RAI1B or VHI27040RAI1A are adaptable.

A new version ROM VHI27020RAP1B and a current Main ROM VHI27040RAJ1C,

VHI27040RAJ1B or VHI27040RAJ1A are adaptable.

Parts marked with " ! " is important for maintaining the safety of the set.
Be sure to replace these parts with specified ones for maintaining the safety and performance of the set.

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