Sony MZ-300 Manual Mode, Operations when the Test Mode is set, How to release the Test Mode

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4-2-2. Operations when the TEST MODE is set

When the TEST MODE is entered, the system switches to the dis- play check mode within the TEST MODE. From this mode, the other Test modes can be accessed.

When the TEST MODE is set, the LCD repeats a cycle of the fol- lowing displays:

Main unit LCD

4-3. TEST MODE STRUCTURE

*Manual mode operation can only be performed via the remote control unit.

Use the connection tool to connect the remote control unit. The display of the main unit shows “Adj”.

Test Mode

(Display Check Mode)

F1SHUFF u

AVLS BASS

888:88

130

All on

All off

Microprocessor version display

+ key

 

 

 

 

Manual Mode

 

 

(Remote control only)

 

x key

 

 

 

+ key

Servo Mode

 

 

 

Audio Mode

 

 

key

Power Mode

 

 

 

 

 

 

OP Alignment Mode

Press and hold

 

down

x

key

 

 

 

Remote control LCD

888

 

F1SHUFF PGM u

 

 

SOUND 1 2 BASS 1 2

All on

All off

008V1.300

Microprocessor version display

The remote control display varies with the type of remote control unit used.

(Example shown: RM-MC10L)

• The current display is retained as long as either the PLAY MODE/DISPLAY key on the main unit or the PLAY MODE key on the remote control unit is pressed and held.

4-2-3. How to release the TEST MODE

When method 1 was used:

Turn off the power and open the solder bridge on BP801 on the main board.

Note: The solder should be removed clean. The remaining solder may make a short with the chassis and other part.

When method 2 or 3 was used: Turn off the power.

Note: If electrical adjustment (see page 8) has not been finished completely, always start in the test mode. (The set cannot start in normal mode)

 

 

 

 

 

 

Display segment check mode

 

 

 

 

 

 

(Main unit only)

 

 

 

x

 

 

 

 

 

 

 

 

 

Release

 

key

 

 

or

key

 

 

.

 

Overall Adjustment Mode

 

 

 

 

 

 

 

 

 

 

 

 

xkey

4-4. MANUAL MODE

4-4-1. Outline of the function

The Manual mode is designed to perform adjustments and operational checks on the set’s operation according to each individual function.

Usually, no adjustments are made in this mode.

However, the Manual mode is used to clear the memory before performing automatic adjustments in the Overall Adjustment mode.

*Manual mode operation can only be performed via the remote control unit.

Use the connection tool to connect the remote control unit. The display of the main unit shows “Adj”.

4-4-2. How to set the Manual mode

1.Set the TEST MODE and press + key to set the Manual mode. Remote control LCD display

000 AAAS CC

2.When the test mode display shows “100”, “200”, “300”, “500”, “600”, “700”, “800”, or “900”, the optical pickup can be moved inside and outside of the SLED perimeter by continuously press- ing the ( >N or . keys on the main unit.

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Contents 873-064-13 SpecificationsSection Servicing Note General Mechanism Deck DisassemblySection LID ASSY, UPPER, Holder AssyOptical PICK-UP Assy Main BoardSetting the Test Mode Section Test ModeHow to set the Test Mode How to set the Manual mode Manual ModeOperations when the Test Mode is set How to release the Test ModeNV Reset Overall Adjustment ModeTest Mode Overall adjustment mode structure Electrical offset adjustment methodDisplay segment check mode Ver 1.1 Overall CD and MO adjustment methodMZ-E300 Overall offset adjustment Overall CD and MO adjustment itemsPin No Pin name Description Section DiagramsExplanation of IC Terminals IC601 LC89642-8B-EFseq AvssXIN LrcoVcvss PCKOpenclssw XresetRmckey SetkeySLED2RCON ClvwconSLED1RCON SLED1FCONMain Board Block DiagramsRefer to page 24 for Notes Printed Wiring Boards Main /2Location Semiconductor2121 IC B/D Schematic Diagram Main /32323 Digital MZ-E300 IC Block Diagrams IC551 SC111257FCR2 IC901 XPC18A32FCR2 Main Section Section Exploded ViewsM902 Mechanism Deck Section MT-MZE300-176Main Section Electrical Parts ListElect Chip Short Date Description of Revision Revision History