When the unit is working it is great. however, intermittently the display goes completely blank. the audio still plays but the display is dead. the only way to fix it is to detach/reattach the faceplate. only problem is that all memory functions are now reset (ie station presets, eq presets etc). total pain in the ass.
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It is possible there is an intermittent contact, but I don't believe there is anything to worry about.
The HOLD slider does not turn off the recorder. It only turns the keyboard off and the display off as well. The clock keeps running.
A simple test? Start a RECORDing operation and slide the switch to HOLD. (In my VN-1800 the keyboard goes dead, but the display stays on.) (In my DS-330, the keyboard goes dead and the display goes off.)
If I slide the switch to HOLD during a PLAYBACK operation, it keeps going until the file has finished playing. Then it goes blank.
I had posted the similar problem with my 2002 Navi. It turned out to be a bad DVD/base unit. Unfortunately, just about all of the advice posted here was incorrect. The DVD unit is basically a complete computer and it sends raw video signals to the display unit just like a PC sends video to an LCD display; when the computer dies or is off, the display goes blank. So, any problems with sluggish or unusual behavior indicates the base unit is going bad. In my case, it was so dead that it couldn't event eject the DVD - I had to literally take the DVD drive apart to get my disc out. I bought a used Navi DVD base unit online from "acurahondatech" on eBay. This guy was great; he helped me diagnose the problem and found the right unit to work with my model MDX. I highly recommend him.
Thank this guy and you need to see a qualified repairman
Chassis BA6 for anyone elses information:
I would check the Bridge rectifier first to see what voltage you are getting. I have a note here to check D611 which is the bridge rectifier.
Here are the Sony blink codes:
Unit is dead and there are no blinks---Problem in the standby power section. Might check fuse, R607, Q601, IC601, R612 and VDR601 (should show open)
Continuous Blink Once A Second, No Pausing As Discussed Above--- No reply from the jungle IC301 (data bus is busy, shorted to ground or held high), IK video path is defective.
ONE Blink--- not used for the self-diagnosis
TWO Blinks---B+ over current protection (OCP) , unit goes to the standby mode then displays the 2 blink fault. Could be a short in the power supply of any of the circuits.
THREE Blinks---B+ over voltage protection (OVP), unit goes to the standby mode then displays the 3 blink fault. This is also a problem in the power supply circuit, check T603 and R672.
FOUR Blinks---No Vert. Deflection (V STOP), Screen goes to a single horizontal line then the video signal muted. Check IC1509, Q1505
FIVE Blinks---AKB circuit (AKB), the timer/standby indicator blinks for about 30 seconds then goes to the self-diagnosis function. Something is wrong with the video. Check video out, Q705, 732, 761 and other components on the C board, also check Q218, 219, 220 on the A board. Also unit be in IK blanking, try turning up screen slightly.
SIX Blinks---No Horizontal (H STOP), no raster, goes to the blinking self-diagnosis function immediately. Check C515 & 516 and the jungle IC, IC206.
SEVEN Blinks---High voltage shutdown. The high voltage has exceeded 33k and the unit goes immediately into safety shutdown. Check power supply regulation and horizontal circuits.
EIGHT Blinks---Problem with the audio (AUDIO), unit goes to standby and blinks the self-diagnosis code. Check IC406 audio amp, PS401 and 402.
Intermittent problems ?? This is a great feature. You can also bring up these fault codes ON-SCREEN to see a list of the problem numbers with the abbreviation of the problem and the number of times this problem has occurred. This is slightly different than entering the service mode. To see the diagnostic screen, Press the following buttons:
Display, Channel, 5, Vol Minus, ( Not plus ) then Power. This brings up a screen with a list of the problems and number of times they have occurred. Each of the problem names is abbreviated as, "OCP", "OVP", "V STOP", ETC. We have repeated them in parentheses in the text for the "Blinks" described above so you can correlate between the diagnostic screen and the blink codes.
So, now that you know about these self-diagnostics, how do you use them? Say that you have a set with a black screen. You see that the LED is blinking 4 times....This would tell you that you have no vertical and that is why the video is muted. If it was blinking 6 times, you would know that you have a horizontal fault.
If the LCD screen is blank or black when you have your camera in the Camera or Play mode, the camera may need service. To determine if this is the case, follow these steps:
1. Press the Menu button to see if the LCD screen can display the OSD (On Screen Display).
2. Set your camera to Play mode, and then see if the LCD screen displays a picture.
3. To eliminate the possibility of a user setting causing the problem, put the unit into Auto mode by rotating the dial on the units exterior to Auto Mode.
Note: The word "Auto" appears on the screen when this mode is activated.
4. If putting the camera into Auto mode does not resolve the problem, test the unit in Play mode. If the unit operates normally in Play mode, but the screen in Camera mode is blank, your camera requires service which you can arrange by Creating a Service Ticket below.
Note: Because your camera has an automatic LCD display shutdown feature, its normal for the LCD to stop displaying when the camera has been on for along period of time. This feature prolongs battery life.
I suspect intermittent 31V supply, filament supply or bad connections on fluorescent display. Check Q801 31V reg , R802, zener on base of Q801 located on DC board. Inspect all boards for bad solder joints, reflow and tighten pcb grounding screws.
If the unit operates correctly on DVD then we can assume that the signal chain and display is operational. Can you substitute the Directv receiver to rule the box out as part of the problem? I know they came out and checked but how exhausting was the testing? Have you checked signal strength on the directv on screen setup? Low or marginal signal strength could cause intermittent blanking. When the screen goes dark does the audio continue?
please let us know..
My Alpine CDA-7842 works fine from a functional point of view but the
display (readout) had stopped working. All the lights on the display
work but the actual readout is blank. At first the readout would
intermittently work now it's completely dead. Any assistance would be