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2 Service Mode [TT mode]
There are 2 possible mechanisms for starting TT mode on Sony cook STB's...
2.1 Special key sequence
The following key sequence entered via the standard remote commander for a particular STB can enable TT
mode. This sequence must be entered...
(1) In full, with no deviation from the sequence from first to last.
(2) With the STB in Standby mode at the start of the sequence.
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Should the STB be in active standby at any time (i.e. during software upgrade) it shall not be possible to enter
TT mode.
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2.2 Special remote commander data code
It is considered that the sequence described in section 2.1 above is too complex for automated machinery to
enter reliably without the possibility to confuse the state of the STB, therefore in order to aid manufacture the
SIRCS standard defines that in each remote control category the data code '1111111' (0x7f) shall be reserved
and can be used to enter test mode.
For Cook STB products this SIRCS code shall enter TT mode and is valid in the following conditions...
(1) If the unit is in standby. At which point the STB will come out of standby
(2) When the unit is not is standby and there is no menu displayed
(3) When the unit is not tuning (automatically or manual)
(4) Then the unit is not displaying interactive services
The category code is different between each equipment type (DTT, etc) and the correct category code
must be received according to the equipment type.
The test code shall not be made available on any consumer remote commander equipment.
2.3 Exiting TT mode
TT mode can be exited using one of the following mechanisms...
(1) Removing the power to the STB
(2) Placing the STB into Standby mode
(3) Entering the command '0'
After TT mode is exited any changes to the state of the box will still be effective. It is better to force a box
reset post-TT mode.
Service Manual
Sequence number
1
2
3
4
- 6 -
Key
DIGIT 1
DIGIT 9
LEFT CURSOR
BLUE
4
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