Sony MZ-N1 Section Test Mode, Outline, Setting Method of Test Mode, Releasing the Test Mode

Page 13

MZ-N1

SECTION 4

TEST MODE

Outline

This set provides the Overall adjustment mode that allows CD and MO discs to be automatically adjusted when in the test mode. In this overall adjustment mode, the disc is discriminate between CD and 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 individual adjustment to be auto- matically adjusted.

Operation in the test mode is performed with the set. A key having no particular description in the text, indicates a set key.

For the LCD display, the LCD on the remote commander is shown, but the contents of LCD display on the set are same.

Setting Method of Test Mode

There are three different methods to set the test mode:

1Short SL801 (TEST) on the MAIN board with a solder bridge (connect pin <zvn of IC801 to the ground) and turn on the [HOLD]

switch. Then, turn on the power.

MAIN Board (Conductor Side) –

SL801

 

 

S801 [HOLD] switch

(TEST)

 

 

OFF t ON (HOLD)

 

SL801

 

 

 

 

 

 

 

C850

 

(TEST)

 

C820

 

 

 

C821

C818

 

 

 

 

 

 

 

 

 

 

+ C810

 

 

 

 

 

 

 

 

 

C813

 

 

 

+

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SL506

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

195

199 178 174 170 166 164 158 1

 

 

 

 

FB802

 

 

193 197 203 180 176 172 168 162 160 1

 

 

 

R842

 

 

 

C509

 

 

189 191

 

 

 

 

 

 

 

 

187 185

175 171 169 167 163 159 1

 

 

 

 

R841

 

 

182 183

173 179 177 201 165 161 1

 

C510

 

 

 

186 184

207 181

 

 

 

 

 

 

190 209

215 188

 

 

C511

 

 

FB801

 

 

 

 

 

 

 

Operation in Setting the Test Mode

When the test mode becomes active, first the display check mode is selected.

Other mode can be selected from the display check mode.

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

Remote commander LCD display

All lit

888

All off

 

Microcomputer

version 001 V1.000 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 or 3:

Turn off the power.

2In the normal mode, turn on the [HOLD] switch. While press- ing the [VOLUME --]key press the following order:

>t > t . t . t > t

. t > t . t X t X

3In the normal mode, turn on the [HOLD] switch. While pressing the x/CHG key, press the keys on the remote commander with the following order:

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

. t N > t . t X t X

Note: If electrical adjustment (CD and MO overall adjustment) has not been finished completely, “NV Error” is displayed on LCDs of the set and the remote commander.

13

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Contents 873-443-01 SpecificationsMZ-N1 Battery lifeDisassembly Table of ContentsDiagrams Flexible Circuit Board RepairingSystem requirements MZ-N1 Section Servicing NotesRecorder Section GeneralDisassembly Flow MZ-N1 Section DisassemblyUpper Panel Section Bottom Panel AssyMain Board Section LCD MODULE, Upper Panel AssyMD Mechanism Deck MT-MZN1-171, Chassis Assy Battery Case ASSY, Main BoardGear SA Screw M1.4 OP Service Assy LCX-5RDC Motor Sled M602 Holder AssyOver write head up/down Setting Method of Test Mode MZ-N1 Section Test ModeOperation in Setting the Test Mode Releasing the Test ModeManual Mode Configuration of Test ModeTransition method in manual mode A n u a lF F J 0 011 C 6 8 S 0011 0 6 3 B 0 011 0 5 9 a 0Description of error indication codes Reset the Error Display CodeSetting method of reset the error display code Description of indication historyPush 000 P * * R000 JOG+ 000 JOG+OKSET OK RPLAYRMC OK MZ-N1 Section Electrical Adjustments ResetResNV CC ResOK?Dfct AbcdGn861 V1 num 862 V1 dat874 V6 dat 873 V6 numVclPWM Power Supply Manual AdjustmentVLpwmL VLpwmHRECpwH RECpwLVdpwm SetTmpIC301 WritPwAssy11 AssyOfst OfstOKCD OK 000 *** NGMO OK Resume CCServicing Notes PreparationPre-check Rewriting the patch dataMZ-N1 MZ-N1 Block Diagram SERVO/USB Section MZ-N1 Section DiagramsBeep Mute HP/L Block Diagram Audio SectionBlock Diagram DISPLAY/KEY CONTROL/POWER Supply Section Lead Layouts Main Board Semiconductor LocationIC301 See page 41 for IC Block Diagrams Schematic Diagram Main Board 1/4Flah 4S08 Schematic Diagram Main Board 3/4 See page 40 for WaveformsComponents identified by mark 0or dotted MVp-p WaveformsIC302 AN17020A-VB IC Block Diagrams IC301 AK5354VT-E2IC501 SN761057A IC551 SC111258FCR2 IC601 XPC18A22AFCR2 IC901 XPC18A32AFCR2 IC PIN Function Description DVSS0 DRAMVSS0DVDD0 SSB DataTrst KDIVG CTL Aout SELVref MON LCD RSTVbus DET WK DETOsci VdioscOsco VsioscDVSS3 LrckDVDD3 IFVDD3XWE XOEEVA FlashvddKNOB, Balance White . . . RED MZ-N1 Section Exploded ViewsNot supplied Bottom Panel Section107 Chassis Section108 101 102 103 102 104Main BOARD, Complete FR 155 156 157 154 152 153 151312 MD Mechanism Deck Section MT-MZN1-171322 315MZ-N1 Main Section Electrical Parts ListMica Chip IC XC61CN0802NR Except FR Short 505 501 502504 503Revision History
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MZ-N1 specifications

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