Sony MZ-R91 Outline, Setting Method of Test Mode, Operation in Setting the Test Mode

Page 11

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. Though LCD display shows the LCD of the remote commander, same con- tents are also displayed on the LCD of the set.

[Setting Method of Test Mode]

There are two different methods to set the test mode:

1Short BP801 (TEST) on the MAIN board with a solder bridge (connect pin y; of IC801 to the ground). Then, turn on the

power.

– MAIN BOARD (Conductor Side) –

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

All lit	888 xxxxxxxxx	F1SHUF
		REC

All off

Microprocessor	001 V0.000
version	001 V0.000
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 BP801 (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 18) has not been finished com- pletely, always start in the test mode. (The set cannot start in nor- mal mode.)

BP801

(Short: Test Mode )

Open: Normal Mode

– 11 –

Image 11

Contents LCX-2R SpecificationsNEW Flexible Circuit Board Repairing Table of ContentsDiagrams Exploded Views Electrical Parts ListEeprom Section Servicing NotesLocation of Controls Headphones with a remote control RM-MZ2SSection GeneralUpper Panel Section Section DisassemblyPanel ASSY, Bottom MZ-R91 LCD MODULE, BUTTON, CONTROL, Service ASSY, Upper PanelMZ-R90 Belt ASSY, Ornamental Main BOARD, Case ASSY, BatteryChassis ASSY, SET, MD Mechanism Deck MT-MZR90-165 Service ASSY, OPMotor Flexible Board Holder AssyMOTOR, DC Sled M602 Releasing the Test Mode Test ModeSetting Method of Test Mode Operation in Setting the Test ModeA n u a l Configuration of Test ModeManual Mode 011 0 5 9 a 0 Overall Adjustment Mode011 0 F F J 0 011 0 6 3 B 0T r y Sound Skip Check Result Display ModeSetting method of Sound Skip Check Result Display Mode T a t000 1 s t Self-Diagnosis Display ModeREC Description of Error Indication CodesClearing Self-Diagnosis Data and Total Recording Time Description of Indication HistoryKey Indication Key Check ModeE s Section Electrical AdjustmentsE s N E s O K ?R h V c h C l P W MC h P W M R h V c lD O K E t T m pS S Y D R U NE s C l r Laser Power CheckO O K E s u m eREC Digital Section DiagramsBlock Diagram Servo Section Signal PathSignal Path Play Analog OUT REC Analog REC Digital Block Diagram A/D, D/A CONVERTER, Audio SectionBlock Diagram KEY CONTROL/DISPLAY/POWER Supply Section JEW Printed Wiring BoardSemiconductor Location MZ-R90/R91 IC304, 305 RN5RZ25AA-TR IC Block Diagrams IC301Waveforms IC501 SN761056ADBTIC602 IC601IC902 IC603IC605 XC6367B103MR IC803 XC6383C301MR IC901 IC804 RV5C348A-E2IC PIN Function Description VSC0 VDC0Swdt SclkIxoe VDIO1VSIO1 XrasVDC4 XlrfApcref LddrWrpwr Sync RECPause KEY SenseGND SW FfclrSleep TSB EdgeREC KEY Half LockRMC KEY SET KEYHK, CH, JEW Section Exploded ViewsPanel Section MZ-R90 Chassis section Not supplied Panel Section MZ-R91102 103 104 108 109 Chassis Section101 105 113 112 114 106 110 107 111 109 MD-MECHANISM Deck Section Main Electrical Parts ListCAP, Chip Ceramic Chip 5PFIC MPC17A56FTAEB ConnectorFILTER, Chip EMI Common Mode CXD2660GATransistor ZDT6718TA FET HAT2051T-ELFET HAT2050T-EL FETOPEN/CLOSE Detect SwitchComposition Circuit Block Miscellaneous SWITCH, Slide HoldSWITCH, Slide Synchro REC Thermistor TH901 1-803-795-21 THERMISTOR, Positive VibratorSubject Addition of Korean Model Correction MZ-R90/R91Hong Kong Model Korean Model Electrical Parts ListExploded Views Indicates changed portion.EXPLODED Views 112 105 106 #114151 176 @ IC MPC18A31FTAEB IC MPC17A56FTA