Sony MZ-B100 Section Test Mode, Outline, Setting Method of Test Mode, Releasing the Test Mode

Page 12

MZ-B100

SECTION 4

TEST MODE

[Outline]

•This set provides the Overall adjustment mode (Assy mode) that allows CD and MO disc to be automatically adjusted when in the test mode. In this overall adjustment mode, the protect switch is detected to judge the disc, CD or MO, and each adjustment is automatically executed in order. If a fault is found, the system displays its location. Also, the manual mode allows each indi- vidual adjustment to be automatically adjusted.

•The keys in the description refer to the keys on both set and remote commander unless otherwise specified.

[Setting Method of Test Mode]

There are two different methods to set the test mode:

1Short SL801 (TEST) on the MAIN board with a solder bridge (connect pin 202 of IC801 to the ground). Then, turn on the power.

2In the normal mode, turn on the HOLD switch on the set. While pressing the N key on the set, press the following set keys in the following order:

>t > t . t . t > t . t

>t . t X t X

[Operation in Setting the Test Mode]

•When the test mode becomes active, first the display check mode is selected. (Press x key once, when the display check mode is not active.)

•Other mode can be selected from the display check mode.

•When the test mode is set, the LCD repeats the following dis- play.

LCD display

MAIN BOARD (SIDE A)

C808

R812

C806

1

 

 

 

4

C517

R804

R817

 

40 44

C518

SL801(TEST)

OPEN: NORMAL MODE

SHORT: TEST MODE

R801

 

 

R803

 

 

 

 

 

R802

 

*

 

 

 

 

 

R819

 

 

 

IC801

C817

 

 

R820

 

 

R830

 

 

C816

C823

 

 

 

 

 

 

 

 

R825

R828

 

 

 

C821

R827

 

 

 

R829

R811

R810

 

 

 

X801

SL801

SHORT: TEST MODE

OPEN: NORMAL MODE

8

IC804 5

C805

R821

C818

All lit

All off

 

Microprocessor

V0.000

version

display

 

•When the X key is pressed and hold down, the display at that time is held so that display can be checked.

[Releasing the Test Mode]

For test mode set with the method 1:

Turn off the power and open the solder bridge on SL801 (TEST) on the MAIN board.

Note: Remove the solders completely. Remaining could be shorted with the chassis, etc.

For test mode set with the method 2:

Turn off the power.

Note: If electrical adjustment (see page 19) has not been finished com- pletely, always start in the test mode. (The set cannot start in nor- mal mode.)

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Contents Specifications MZ-B100Table of Contents DisassemblyDiagrams Flexible Circuit Board RepairingSection Servicing Notes Unleaded SolderLead Free Mark EepromSection General Location and Function of ControlsFront of the recorder REVIEW/AMS/ CUE/AMSRemote control Display windowREVIEW/AMS Section Disassembly Panel Lower AssyMain Board Cabinet Belt Section KEY Board UnitMechanism Deck Optical PICK-UP Block LCX-4R Gear SA Screw M1.4Holder Assy MOTOR, DC Sled M602Qs chassis assy, gear Section Test Mode Setting Method of Test ModeOperation in Setting the Test Mode Releasing the Test ModeConfiguration of Test Mode Manual ModeMajor item switching Overall Adjustment Mode 731Sound Skip Check Result Display Mode Setting method of Sound Skip Check Result Display Mode000 Self-Diagnosis Display Mode 000 R # # # #Description of Error Indication Codes Clearing Self-Diagnosis Data and Total Recording TimeDescription of Indication History RECKey Check Mode Key IndicationSection Electrical Adjustments Precautions for AdjustmentAdjustment Sequence NV ResetAdjustment method of VC PWM Duty L mode number Adjustment method of Vrem PWM Duty L mode numberAdjustment method of Vrem PWM Duty H mode number Adjustment method of VC PWM Duty H mode number 765767 766Temperature Correction Adjustment Method of temperature correctionAdjustment Method of Overall Adjustment Mode 014Laser Power Check Connection141 043Diagrams SectionExplanation of IC Terminals Pin No Pin name DescriptionMIFVSS3 XrstREC KEY Half Lock SWAdrb APCDSPVDD0 DSPVSS0Slcv SlcwDIFVDD1 DIFVSS1SET CODE0 SET CODE1SET CODE2 MIFVSS1Waveforms Block Diagram Main /3 REC Analog3131 3232 Printed Wiring Board Main /2 Uses unleaded solderRefer to page 29 for Notes SemiconductorMain Board +B Switch Sledn 3737 CLV IC Block Diagrams IC301 AK5354VT-E2XPC18A22FCR2 IC701 SC111258FCR2 Exploded Views Panel Lower SectionPanel Upper LID Section 5354118 107 106 116 105 116 103 108 109 111 110 112 113 114 102 117 101 115Mechanism Deck Section MT-MZB100-171 Section Electrical Parts List MainTantalum TC7W66FKTE85R Transistor R222 218-977-11 Valiable Resistor Revision History
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MZ-B100 specifications

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Overall, the Sony MZ-B100 mini disc player is a well-rounded device packed with advanced features aimed at enhancing the listening experience. Its portability, sound quality, and intuitive functionality make it a noteworthy choice for anyone seeking a reliable audio recording and playback solution. The MZ-B100 remains a testament to Sony's commitment to innovation in the world of personal audio technology.
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