Just Another Dang Blog

A couple of days ago during the weekend, I booted up my trusted pc lo and behold I heard the Windows startup sound but my LG monitor (LG1753S) screen is blank. I had this monitor for about 3 or 4 years now without any glitch. Used to leave it open for 72 hours sometimes. And this time it had failed to start up. So after checking the power is properly plugged, I shut down my pc again. Turned off the EPS and turn back on, the monitor power lit up(hooray?) but after a few seconds its gone again.

So its final my LG screen is dead. After a couple of googling on my alternate internet device(HTC Hero) I found out it’s easy to fix. Thanks to this website for the amazing archive of fixing LCDs. http://www.ccl-la.com/blog/index.php/lg-l226wtq-bf-monitor-repair/. Just several capacitors failing me, being the jack of all trade that I am I decided I’ll fix it myselft. I went to my trusted electronics shop and purchased some capacitors according to the article, but found I it was the right one. LOL. I opened up the monitor and upon inspection the capacitor ratings are 4 1000uf 25v, 1 470uf 25v and 1 680uf 25v high temp. So back to the electronics shop. So after removing the old capacitors and soldering the new ones. The Monitor is good and alive again. Took only atleast $3 for the whole thing.

Took some snaps while I was at it.

So a little bit of guts and the need to save on service fee, just DIY(Do-It-Yourself), make sure you have the right tools, a philips, screwdriver, soldering iron, soldering lead and check the ratings of the capacitors before purchasing.

If you still haven’t received your update your HTC Hero (GSM version) for Andriod Eclair(2.1) from the stock Cupcake(1.5). Eventually the Andriod 2.1 update has been rolled out in the Taiwan, US, Asia and Europe. The update is over the air. Here is a trick I learned on how to force update it if you haven’t gotten the prompt yet. The trick is to adjust the date to a future date, maybe 1 month or 2 months further. This will force the phone to check automatically on HTC servers, within a few seconds you should get the prompt. There are a couple of updates, a firmware update and the Andriod Eclair 2.1 update. Download the first update and then the 2nd. Here are some shots I took while updating. Took me about an hour

BTW my HTC Hero was bought from Hong Kong so it’s default local is in cantonese after the update.

Wow been awhile since my last blog post.

Saw this vid and looking forward to using it. Currently App Inventor is on beta and not ready for public. You can sign up and you would be notified soon by the App Inventor Team on its availability. In the meantime check out this vid.

Object Relationships
Link two objects
-parent to child
-one to many

two main types
-lookup
-master-detail

two special types // implementation of the two
-self relationships
-many to many relationships

lookup relationships
-loosely coupled
* child field value may be optional
* no cascade delte
* independent ownerhip / — independent access control
* max 25 lookup per child
– child may not have a parent

master detail
-tightly coupled
* child field vale is always required
* cascade delete
* inherited ownership * sharing
* max 2 per detail object

Custom Fields
- store the data for your custom object records
- automatically include some standard fields
- create custom fields to store additional information

Custom Fields and External Ids
- Custom index on any custom field of type Text, Number or Email
- Available on all objects that support custom fields
- User-defined cross-reference field
- Why is it important?

– Increases report and API SOQL performance
– Used with upsert to easiy integrate apps with other systems

- An object can have three External IDs

Encrypted Fields
-Encrypted fields allow for masking data from all users except those with the “View Encrypted Data” permission – provisioned feature
- Encrypted custom fields cannot be unique, an external ID or have default values
- Encrypted fields are editable regardless of whether the user has the “View Encrypted Data” permission – can use validation rules, field level security, page layout etc.. to

2 Types Activites
- Task
- Activity

6 Standard Name fields
-Name
-ID
-Created By
-LAst Modified By
-Created Date/Last Modified Date
-Owner

Most of the work revolves around creating custom objects, there are standard objects provided by the platform but custom objects are the core structure data model that makes your application relevant & useful to your organization.

Custom Objects are the the heart of any application
- provide a structure for storing data
- power the interface elements for users to interact with the data
- store information that is unique and important to your organization
- are reportable and searchable
- have configurable access control features aka Security and Sharing Rules
- has properties such as custom fields, relationships to other objects, page layouts , tabs(optional)