Sharp XL-3000V service manual Key input diagnosis Test Mode Test

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XL-3000V

6. Key input diagnosis Test Mode (TEST 6)

When the test mode is obtained, the following is displayed.

This test mode is intended to check whether all the main unit buttons can be detected. Accordingly, in this test mode, it is checked whether the "ON/STAND-BY" button was pressed after all the buttons shown below were pressed. If the result is OK, OK is displayed. If any one of keys was not pressed, an error is displayed. In both cases of OK termination or error termination, the mode is shifted to the standby mode if the "ON/STAND-BY" button is pressed subsequently.

All models using this type of microcomputer are not always provided with the same buttons. Since the buttons used are different depending on models, types of buttons to be used are determined by whether RDS, SURROUND, and an electric lid are available at the initial setting by MODEL port.

The order of buttons to be pressed is not determined. Accordingly, it is checked whether all buttons have been pressed.

1.PU-IN buttons: REW/PRESET DOWN + CD STOP Since this model is provided with SURROUND (HAVE OR NOT), RDS (HAVE OR NOT), and electric CD lid, the following 10 buttons are detected as all buttons.

PLAY, BASS/TREBLE, FUNCTION, VOLUME UP/

DOWN, MEMORY/SET, REW, FF, STOP, CD-OPEN/

CLOSE

The OK/NG display of test result is as follows.

7.Electric CD lid Aging Test Mode (TEST 8) (Only for model with electric CD lid)

Outline

OPEN/CLOSE operations of electric CD lid are repeated. The number of repeated times and time period are monitored. If the lid does not move to the regular position after the specified time, operation is stopped. When an error is detected by [CLID_PRO] during CLOSE, operation is also stopped.

a. POWER ON for function AUX

CD lid position is checked.

CLOSE position: Operation proceeds to the next process.

Position other than CLOSE: After the lid moves to CLOSE,operation proceeds to the next process.

b.CD lid operation started OPEN operation

WAIT 1 second CLOSE operation WAIT 1 second

c.Operations above are repeated. Specified monitoring time

OPEN operation: 5 seconds

CLOSE operation: 5 seconds

d.Display

OPEN>CLOSE is counted as 1. I to 59999 are counted; if the count is over 59999, display is returned to 0 to repeat counting.

Display when the lid does not move to the regular position after the specified time

(Ex: Defective operation occurring in the middle of 1538.)

Highlight display of stop when an error is detected by [CLID-PRO]

(Ex: Defective operation occurring in the middle of 1538.)

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Contents Contents Model XL-3000VAC Power Cord and Plug Adaptor Voltage SelectionSpecifications Display Names of PartsFront panel Rear panelRemote control Setting the Clock System Connections Setting the AC voltage selector Connecting the AC power lead Listening to a CD Disassembly LED PWBPWB Perform steps 1,2 and 7 of the disassembly method to remove Removing and Reinstalling the Main PartsHow to remove the CD lid See Fig CD Mechanism Section See FigFM Detection AdjustmentSetting the Test Mode FM Mute LevelTest Video CD IC15VBEX Video PWB-DChecking the black-and-white level Disc Checking SettingChecking of vector scope waveform Video OUTTurning on the test mode Tuner Test Mode Test Outline of tuner radio test modeDetails of tuner test mode Electronic volume Test Mode Test Timer test Mode TestLCD Test Mode Test Key input diagnosis Test Mode Test Volume UP ON-OFF FF/PRESET UP ON-OFFCD PLAY/PAUSE/TUNING UP ON-OFF Volume Down ON-OFFFOCUS/TRACKING Switch PWBCD Motor PWB SPIN/SLED DriverMain PWB Power PWB-BRminal PWBDisplay PWB Lamp PWBTuner PWB Video CD Decoder IC10VIC15V IC16VIC11V Buffer AMPVideo CD Encoder Video PWB-D Terminal PWB-A4From Tuner PWB-A2 CNS7 FromFM Signal Video SignalCD Signal VolumeSERVO/SIGNAL Control CD Motor PWB-C CD LID Motor DriverSchematic Diagram 5/10 Main PWB-A11/2 AM Signal FM SignalTuner PWB-A2 CNP307Display PWB-A3 Lamp PWB-A7System Schematic Diagram 8/10 ROM 256Kx16 Video PWB-DIC10V Video CD DecoderXL-3000V Video SignalCD Signal Buffer AMPTo 15 are waveform numbers shown From Display MERAssis PWB-A3 SpindleAntenna OhmsTo Main PWB-A1 To Main To VideoPink IC14V Video PWB-D TOP ViewVideo PWB-D Bottom View IC16VWaveforms of CD Circuit Troubleshooting When the CD does not functionParts Code UDSKA0004AFZZ Sled Motor HF ErrorFailure Operating FailureLaser failure Focus failureFocus servo sawtooth wave failure Spindle motor clv servo failureDMO TEI Tezi HF errorNo sound RFITrack search failure Sled motor operation failureSled servo failure IC401 VHiLC75342M-1 Function/Volume Equalizer LC75342M Function Table of ICPin No Port Name Function Test VSS Pin No Terminal Name Input/Output Function IC701 RH-iX0038SJZZ System Microcomputer/FL driver IX0038SJ SEG25-SEG0IC801 VHiTA2109F/-1Servo Pre Amp. TA2109F IC802 VHiTC9462F/-1 Servo/Signal Control TC9462F 1/3 Uhso HSOPin No Port Name Input/Output Function IC802 VHiTC9462F/-1 Servo/Signal Control TC9462F 2/3 IC802 VHiTC9462F/-1 Servo/Signal Control TC9462F 3/3 IC802 VHiTC9462F/-1 Servo/Signal Control TC9462FCH1-IN-A CH1-OUT-ACH1-OUT-B CH1-IN-BIC14V VHiES3883F/-1 Video CD Encoder ES3883F 1/2 IC14V VHiES3883F/-1 Video CD Encoder ES3883F 2/2 ICV14 VHiES3883F/-1 Video CD Encoder ES3883F IC16V RH-iX0025SJZZ D-RAM 256Kx16 IX0025SJIC15V VHiES3880F/-1 Video CD Decoder ES3880F ES3880F Aclk AOUT/SELPLL0 AtclkLCD701 RV-LX0012SJZZ LCD Display MemoryFor U.S.A. only IC14V IC10V RH-IX0041SJZZIC11V VHINJM4565M-1 IC15VRC-GZA227AF1C VCKYPA1HB102KVCKYPA1HF223Z RC-GZW228AF1VRC-GZA227AF1A RC-EZD107AF1AVCKYCY1EB104K VCKYCY1EB563KR607VRS-CY1JB682J R358VRS-CY1JB822J R359VRS-CY1JB182J R360VRS-CY1JB472JR393VRS-CY1JB102J R395VRD-ST2CD473J R621VRS-CY1JB223JCNP801V QCNCW010MSJZZ QCNCM998DAFZZQCNCM037ESJZZ QCNCW007RSJZZTSPC-0221SJZZ LX-WZ9006SJZZCPNLS1006SJ01 HSY042SPK07302 PWB-A7 PWB-A3 PWB-A6PWB-A5 PWB-A8Copyright 2001 by Sharp Corporation