Protection Circuit Control - Pioneer VSX-49TXi Service Manual

5
The reception points on the line:
AM : 1008 kHz
FM : 89 MHz
∗ If this code is issued during auto scanning, it merely causes the
operation to stop. Issue the code again to resume auto scanning.
9. Video converter operation check (Press [7] key)
When this code is issued, All-through mode will be selected.
The video converter operation is deactivated.
The following assignment will be made for component connectors
1 to 3 and D4 connectors 1 and 2.
Component 1 : DVD/LD
Component 2 : TV
Component 3 : VCR2
D4-1 : SAT
D4-2 : VCR1/DVR
For checkers: Remote control codes other than A55F+A500 ([1]
key) through A509 ([0] key).

7.1.2 Protection Circuit Control

Specifications
(1) Fan control
Valid with European and other general-area models only.
1 Fan on/off
If the temperature at the heat sink rises, the TEMP1 port becomes
"H." Detecting "H," the microcomputer starts the fan. No indication
is made on the FL display.
2 Fan detection
If the fan is forcibly stopped, the FAN_DET port becomes "H."
Detecting "H," the microcomputer performs the following
operations:
1. System muting on
2. Protection relays off
The warning indication "FAN STOP" appears (flashing) on the FL
display.
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VSX-49TXi
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A
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