n5lp
fugio ergo sum
Well it finally happened. The battery that the manual said for me to expect a 2 to 5 year life with finally gave it up last weekend after 13 years. This leaves me with basic instrument indications but no fuel usage information or memory things like recording tachometer time. I thought I had read about this issue on this board but apparently it was on the Matronics list, so I will attempt to document the battery change.
I ordered a ST M48T02-150PC1 memory chip from Digi-Key today at a price of $20.58 plus shipping. Apparently this will be a simple operation of pulling the old chip out and plugging the new one in.
A new initialization procedure will be required, as documented in the manual for first time use. Additionally I will need to plug in the total tach hours. I was worried about being able to do this but the procedure is simple and is shown on the JPI site.
ENGINE HRS RE-PROGRAMMING
To re-load engine hours, follow the steps below:
STEP 1 ? ?Accessing Set Mode?: With power off, press and hold buttons 1, 3, 5 and then turn on power. Wait until the displays start reading out values (takes about 15 seconds or less), and then release buttons.
STEP 2 ? ?Selecting decade to change?: Press button 4 once to move to the next higher decade on the digital engine hours display area. There is no visual indication of this, other than when you change the decade value (STEP 3). Pressing the button moves the selection to the left until it gets to the highest decade, after which the next press returns you to the lowest decade.
STEP 3 - ?Changing the decade value?: Press button 5 to increase the decade value as desired. If you go over ?9? it will carry to the next decade. To erase the entire engine hour?s value, select the highest decade and increase it until the display clears. Do this TWICE, and then proceed per steps 1 thru 3.
STEP 4 ? When you are satisfied with what you see, shut off the VM1000.
If I have any difficulties making the change I will pass them along.
I ordered a ST M48T02-150PC1 memory chip from Digi-Key today at a price of $20.58 plus shipping. Apparently this will be a simple operation of pulling the old chip out and plugging the new one in.
A new initialization procedure will be required, as documented in the manual for first time use. Additionally I will need to plug in the total tach hours. I was worried about being able to do this but the procedure is simple and is shown on the JPI site.
ENGINE HRS RE-PROGRAMMING
To re-load engine hours, follow the steps below:
STEP 1 ? ?Accessing Set Mode?: With power off, press and hold buttons 1, 3, 5 and then turn on power. Wait until the displays start reading out values (takes about 15 seconds or less), and then release buttons.
STEP 2 ? ?Selecting decade to change?: Press button 4 once to move to the next higher decade on the digital engine hours display area. There is no visual indication of this, other than when you change the decade value (STEP 3). Pressing the button moves the selection to the left until it gets to the highest decade, after which the next press returns you to the lowest decade.
STEP 3 - ?Changing the decade value?: Press button 5 to increase the decade value as desired. If you go over ?9? it will carry to the next decade. To erase the entire engine hour?s value, select the highest decade and increase it until the display clears. Do this TWICE, and then proceed per steps 1 thru 3.
STEP 4 ? When you are satisfied with what you see, shut off the VM1000.
If I have any difficulties making the change I will pass them along.