Roland BOSS KATANA-50 Mk II, Service Notes

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23
Oct. 2019 KTN-50_2
1. Model Check
As shown in the table below, one of the 5 EFFECTS button lights up in green, and indicates the model.
G: lights in green, -: goes off
* If the model name shown in the table above does not match with the model name sticker on the rear panel, then the wrong main board is being installed.
2. Version Check
1.
Press and hold down TAP .
While pressing
TAP
, each of the 5
EFFECTS
LEDs lights up or goes dark to display the value for each numerical place of the version number as shown in the
table below.
Refer to the table below for value of each numerical place.
R: lights in red, G: lights in green, O: lights in orange, -: goes off
2.
Press PANEL to advance to the next test item.
3. Switch/LED Check
VARIATION flashes in red, BOOSTER – PANEL and TAP light up red.
Press buttons in number sequence as shown in the table below, and verify the status of the LEDs.
R: lights in red, R*: flashes in red, G*: flashes in green, -: goes off
MODEL BOOSTER MOD FX DELAY REVERB
KTN-50 Mk II G - - - -
KTN-100 Mk II - G - - -
KTN-100/212 Mk II - - G - -
KTN-HEAD Mk II - - - G -
Ones Place First Decimal Place Second Decimal Place
Value
BOOSTER MOD FX DELAY REVERB
- - - - - 0
G - G - G 1
R - R - R 2
O - O - O 3
undefined G - G - 4
undefined G G G G 5
undefined G R G R 6
undefined G O G O 7
undefined R - R - 8
undefined R G R G 9
Operation Procedure Button (LED)
No. Pressed Button VARIATION BOOSTER MOD FX DELAY REVERB CH1 CH2 PANEL TAP
0 Initial State R* R R R R R R R R R
1 VARIATION - R* R R R R R R R R
2 BOOSTER - G* R R R R R R R R
3 BOOSTER - - R* R R R R R R R
4 MOD - - G* R R R R R R R
5 MOD - - - R* R R R R R R
6 FX - - - G* R R R R R R
7 FX - - - - R* R R R R R
8 DELAY - - - - G* R R R R R
9 DELAY - - - - - R* R R R R
10 REVERB - - - - - G* R R R R
11 REVERB - - - - - - R* R R R
12 CH1 - - - - - - - R* R R
13 CH2 - - - - - - - - R* R
14 PANEL - - - - - - - - G* R
15 PANEL - - - - - - - - - R*
16 TAP
- - - - - - - - - -
After goes off for 1 second, execution advances to the next test item.