RAV4 2WD L4-20L (1AZ-FE) (2003) – Tape Player | Description and Operation | Page 4762
NOTE: CD players use an invisible laser beam which could cause hazardous radiation exposure. Be sure to operate the player correctly as
instructed.
6. Tape player/head cleaning: MAINTENANCE
a. Raise the cassette door with your finger.
Next, using a pencil or similar object, push in the guide.
b. Using a cleaning pen or cotton applicator soaked in cleaner, clean the head surface, pinch rollers and capstans.
7. CD player/disc cleaning: MAINTENANCE
If the disc gets dirty, clean the disc by wiping the surface from the center to outside in the radial directions with a soft cloth.
NOTE: Do not use a conventional record cleaner or anti-static preservative.
8. OUTLINE OF AVC-LAN
a. What is AVC-LAN?
AVC-LAN is the abbreviation, which stands for Audio Visual Communication-Local Area Network. This is a unified standard co-developed
by 6 audio manufactures associated with Toyota Motor Corporation.
The Unified standard covers signals, such as audio signal, visual signal, signal for switch indication and communication signal.
b. Objectives
Recently the car audio system has been rapidly developed and functions have been changed drastically. The conventional system has been
switched to the multi-media type such as a navigation system. At the same time the level of customers needs to audio system has been
upgraded. This lies behind this standardization.
The concrete objectives are explained below.
1. When products by different manufactures were combined together, there used to be a case that malfunction occurred such as sound did not
come out. This problem has been resolved by standardization of signals.
2. Various types of after market products have been able to add or replace freely.
3. Because of the above (2), each manufacture has become able to concentrate on developing products in their strongest field. This has
enabled many types of products provided inexpensively.
4. Conventionally, a new product developed by a manufacture could not be used due to a lack of compatibility with other manufactures
products. Because of this new standard, users can enjoy compatible products provided for them timely.
c. The above descriptions are the objectives to introduce AVC-LAN. By this standardization, development of new products will no longer cause
systematic errors. Thus, this is very effective standard for a product in the future.
HINT:
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When +B short or GND short is detected in AVC-LAN circuit, communication stops. Accordingly the audio system does not function
normally.
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When audio system is not equipped with a navigation system, audio head unit is the master unit. (When audio system is equipped with
a navigation system, navigation ECU is the master unit.)