34
PS18/28/48 Service Manual
Placing the Bass Module into TAP Mode
1. Place the bass module into TAP mode
1.1
Set all four DIP switches into the “up”
position. Apply power to the bass module
using the AC line switch and wait until the
amber LED blinks twice and the green LED
blinks briefly at least once (approximately 3
seconds after power up). Then, within twenty
seconds, flip ALL four switches down, then
flip switch #4 (closest to the RJ-45 connector)
back up. The unit will now communicate in
TAP mode. The amber and green LED will
blink alternately when no S/PDIF signal is
applied. Note that when TAP mode is acti-
vated in this manner, the DSP will echo
characters sent by the terminal.
Figure 12. DIP switch Up/Down orientation
UP
Down
1
2
3
4
2. Verify the bass module communicates in
TAP mode.
2.1
Connect the test cable’s, part number
264564, DB-9 connector to the RS-232 COM
port on your computer. Connect the test
cable’s RJ-45 connector to the bass module.
2.2
Type the command ST S and hit “Enter”.
The following response should be seen on
your computer screen. The results may differ
depending on the unit settings. If no S/PDIF
signal is applied, the sample rate will be 29
kHz.
SAMPLE RATE : 44101.30
SPKR TYPE : 02
DIP VALUE : 1111
LCRB_MUTE : 1
LSRS_MUTE : 1
SAT_CLIP : 1
BASS_CLIP : 1
EURO_BASS : 1
EURO_TREBLE : 0
2.3
Check the software by typing (issuing)
the command TN 4 and then hitting “Enter”. A
typical response would be as follows.
03DE6455, 010808
03DE6455 is the checksum
010808 is the software version
Type the equalization setup command
SE [SPEAKER TYPE], [EUROPEAN BASS],
[EUROPEAN TREBLE]
Example: To set the equalization to cricket
cubes, euro bass off and euro treble off, type
the command as follows. SE C,OFF,OFF
Setting the Equalizer
Verify the changes have been made by typing
the command ST S.
The speaker type (SPKR TYPE) and other
information will be displayed. Decode the
numerical two digit speaker type as follows.
01 Doubleshots (Later version dual cube)
02 Cricket (Jewel
®
Cube)
128 Dublin (Single Cube)
05 User EQ (ADATiQ
TM
audio calibration)
Condition
Command
SPEAKER
TYPE
EURO
BASS
EURO
TREBLE
SE A = singleshot (18) ON
OFF
D = doubleshot (28)
C = cricket (35)
U = User EQ
!
Place all four DIP switches to the down position before returning the unit to the customer
!
