Sony MZ-300 specifications Section Test Mode, Setting the Test Mode, How to set the Test Mode

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MZ-E300

SECTION 4

TEST MODE

4-1. GENERAL

• When entered in the TEST MODE, this set provides the Overall

Adjustment mode which allows CD and MO discs to be auto-

matically adjusted. In the Overall Adjustment mode, performs

adjustments in sequence automatically, and displays the faulty

location if any fault is found. In the Manual mode, selected ad-

justments can be performed automatically.

Lead wires: 4 leads

4-2. SETTING THE TEST MODE

4-2-1. How to set the TEST MODE

To set the TEST MODE, three methods are available.

1Solder bridge and short BP801 (TEST) on the main board. Then turn on the power.

• Operations in the Overall Adjustment mode can be performed

either via the main unit, or the keys of a remote control unit.

Note that this device does not include a remote control unit.

Therefore, since no connection terminals for a remote control

are provided either, a connection device must be used in order

to allow a suitable remote control unit to be connected.

Connection

Following parts are required

Remote commander: RM-MZ2N (1-418-493-71)

After RM-MZE1 applicable to 2.4V (Not applicable to remote commanders before RM-MZE1).

Jack: 7 poles jack for phones/remote commander (1-793-288-61)

MAIN BOARD (SIDE A)

BP801

R830

 

(TEST) C806 TP809

TP808 R907

TP816

C810

C8

15

 

 

R803

20

 

FB801

21

 

 

X801

C80

 

 

C805

R82

JACK: 1-793-288-61

R VDD

R DATA

R KEY

R GND

4

3

2

1

 

 

 

 

 

 

 

BP801

OPEN : Normal mode

SHORT : Test mode

2Using a pair of tweezers or similar tool short-circuit TP804 and TP805 on the main board and turn on the power.

MAIN BOARD (SIDE A)

1

2

3

4

TP804 TP803 TP802 TP801

TP805 TP806 TP951

MAIN BOARD (SIDE A)

TP804 TP805

TP804 TP803 TP802 TP801

TP805 TP806 TP951

3In the normal mode, operate the keys on the set and those on the remote control as specified below:

Turn on HOLD switch on the set. Holding down x (STOP) key on the set, press the keys on the remote control in the following sequence:

>N t > N t . t . t > N t . t > N t . t X t X

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Contents Specifications 873-064-13Section Servicing Note General LID ASSY, UPPER, Holder Assy DisassemblySection Mechanism DeckMain Board Optical PICK-UP AssySection Test Mode Setting the Test ModeHow to set the Test Mode How to release the Test Mode Manual ModeOperations when the Test Mode is set How to set the Manual modeOverall Adjustment Mode NV ResetTest Mode Electrical offset adjustment method Overall adjustment mode structureDisplay segment check mode Overall CD and MO adjustment method Ver 1.1MZ-E300 Overall CD and MO adjustment items Overall offset adjustmentIC601 LC89642-8B-E Section DiagramsExplanation of IC Terminals Pin No Pin name DescriptionLrco AvssXIN FseqPCK VcvssSetkey XresetRmckey OpenclsswSLED1FCON ClvwconSLED1RCON SLED2RCONBlock Diagrams Main BoardPrinted Wiring Boards Main /2 Refer to page 24 for NotesSemiconductor Location2121 Schematic Diagram Main /3 IC B/D2323 Digital MZ-E300 IC Block Diagrams IC551 SC111257FCR2 IC901 XPC18A32FCR2 Section Exploded Views Main SectionMechanism Deck Section MT-MZE300-176 M902Section Electrical Parts List MainElect Chip Short Revision History Date Description of Revision