Table of Contents
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1. INTRODUCTION
This service manual contains technical information which will allow service personnel to
understand and service this model.
If the circuit is changed or modified, this information will be followed by supplementary service
manual to be filed with original service manual.
Note:
1. Adjustment procedures, Disassembly Procedures and Assembly
Procedures for Mechanism Chassis are separate volume from this
service manual.
Please refer to the service manual for R4-Mechanism Chassis.
(Order No. VRD0202010C8)
2. The Model No. is indicated on the Schematic Diagram and Circuit
Board Diagrams as follows.
NV-SJ30PMP
NV-SJ30AM
NV-SJ30EU
NV-SJ50AM
NV-SJ50AU/EU
2. GENERAL DESCRIPTIONS
2.1. SERVICE CAUTION
2.1.1. REPLACING THE EEPROM IC6002
NOTE:
The EEPROM IC6002 store the PG shifter data and the operation setting datas.
Therefore after replacing IC6002, PG shifter adjustment should be performed.
(Refer to the Electric Adjustment Procedures)
2.1.2. CHECKING OF MAIN C.B.A.
When servicing the MAIN C.B.A., take out the MAIN C.B.A. and mechanism from the frame and
Model No.
2
Indication Mark
(A)
(B)
(C)
(D)
(E)
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