Convert Krell 300iL to European voltage

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Hi audio_cf and iampivot,
What software do you use to disassembling s19 files? My friend used jbug 5.14 to disasembling s19, but it isn't good as your software.
And when my friend edited directly in s19 files by notepad, such as change FE to 00 and then save it, then load to jbug, I don't know why JBUG doesn't accept this s19 file, it said formating errror in s19 file. So I can't write to 68HC711E9 ic.
I'm waiting for your helps!
 
Hello audio_cf and iampivot

After several months, based on your steps, I've just finished re-programming 68HC711E9 of Krell SACD Standard. Now the SACD worked flawlessly. I'm very happy now.

Now I'm waiting for the new 68HC711 chips. After received and flashed, I'll report the result of the Krell 400xi amp.

Thanks for your helps so so much.
 
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FPB-200 Switches

Hi,

I have just moved back to USA after spending 2,5 years in Bangladesh. I have forgotten what voltage my FPB-200 is set to :)

I need to set the switches for 120 volts.

Anyone has a US FPB amp that can tell me the switch settings ?

I probably could figure it out anyway but I am to lazy to so.

Regards /// CF
 
Krell Showcase 110V->230V

Hello
I have Krell Showcase processor bought in the US but it wouldn't work at 230V. Would anyone, who has dealt with such equipment, advise me how to adapt it for the 230 Volt power supply? I mean, how to plug in a transformer and where to plug in a 60Hz generator? Thanx in advance for your help.
 
Hello???
Anyone here who still reads Hc11 code?
My old H.T.S. 5.1 sounded better than my newer preamp, but with my Ps Audio power plant sold i´m trying to convert it to 240v.
The 3 switches are set to 2-2-2 and so far, so good.
The code in the Motorola MC68hc11F1 (CFN3) Is a bit different than i found earlier here.
I´ve disassembled the file but think i need someone who can read it better than i do.

LBF00
BF01: 03 FDIV ;.Fractional divide 16 by 16
BF02: FF CE 10 STX LCE10 ;...Store index register x
BF05: 00 TEST ;.
BF06: 1C 28 20 BSET $0028,X,#$20 ;.( Set bits
BF09: CC B0 0C LDD #$B00C ;...Load double accumulator
BF0C: A7 2B STAA $002B,X ;.+ Store accumulator A
BF0E: E7 2D STAB $002D,X ;.- Store accumulator B
BF10: CC 02 1B LDD #$021B ;...Load double accumulator
BF13: ED 16 STD $0016,X ;.. Store accumulator D
BF15: 1C 2D 01 BSET $002D,X,#$01 ;.-.Set bits
BF18: 1E 08 01 FC LBF18 BRSET $0008,X,#$01,LBF18 ;....Branch if bit set
;
BF1C: 1D 2D 01 BCLR $002D,X,#$01 ;.-.Clear bits
BF1F: 1F 2E 20 FC LBF1F BRCLR $002E,X,#$20,LBF1F ;.. .Branch if bit clear
;
BF23: A6 2F LDAA $002F,X ;./Load accumulator A
BF25: 26 03 BNE LBF2A ;&.Branch if not = zero
;
BF27: 7E FE 00 JMP LFE00 ;~..Jump
;
BF2A: 81 F0 LBF2A CMPA #$00F0 ;..Compare a to memory
BF2C: 27 1D BEQ LBF4B ;'.Branch if = zero
BF2E: C6 33 LDAB #$0033 ;. Load accumulator B
BF30: 81 80 CMPA #$0080 ;..Compare a to memory
BF32: 27 10 BEQ LBF44 ;'. Branch if = zero
BF34: C6 05 LDAB #$0005 ;.. Load accumulator B
BF36: 85 20 BITA #$0020 ;. Bit test a with memory
BF38: 27 0A BEQ LBF44 ;'.Branch if = zero
BF3A: C6 22 LDAB #$0022 ;." Load accumulator B
BF3C: E7 2B STAB $002B,X ;.+ Store accumulator B
BF3E: 85 08 BITA #$0008 ;.. Bit test a with memory
BF40: 26 09 BNE LBF4B ;&. Branch if not = zero
;
BF42: C6 13 LDAB #$0013 ;..Load accumulator B
BF44: E7 2B LBF44 STAB $002B,X ;.+ Store accumulator B
BF46: CC 0D B0 LDD #$0DB0 ;...Load double accumulator d
BF49: ED 16 STD $0016,X ;.. Store accumulator D
BF4B: 18 CE 00 00 LBF4B LDY #$0000 ;.... Load index register
BF4F: EC 16 LBF4F LDD $0016,X ;.. Load double accumulator
BF51: 1E 2E 20 07 LBF51 BRSET $002E,X,#$20,LBF5C ;.. .Branch if bits set
;
BF55: 8F XGDX ;.Exchange D with X
BF56: 09 DEX ;.Decrement index register
BF57: 8F XGDX ;.Exchange D with X
BF58: 26 F7 BNE LBF51 ;&.Branch if not zero
;
BF5A: 20 0F BRA LBF6B ; .Branch always
;
BF5C: A6 2F LBF5C LDAA $002F,X ;./Load accumulator A
BF5E: 18 A7 00 STAA $0000,Y ;...Store accumulator A
BF61: A7 2F STAA $002F,X ;./ Store accumulator A
BF63: 18 08 INY ;..Increment index register y
BF65: 18 8C 04 00 CPY #$0400 ;....Compare y to memory 16 bit
BF69: 26 E4 BNE LBF4F ;&. Branch if not zero
;
BF6B: 7E 00 00 LBF6B JMP L0000 ;~..jump

Oops... Came out a bit weird this...
Does anyone understand this?
I´ll be very happy for all help.

André
 
Krell 300i voltage jumpers settings

Hi folks, Ihave a Krell KAV-300i that does not use switches to set the voltage. It has jumpers. J1 (Orange-green-Black) and J2 (White-Yellow-Red) are the primaries from the toroidal transformer. J3 thru J7 in line and J8 thru J12 on the opposite side. Anybody knows the configurations for the voltages? Is the jumper version a later or earlier vintage?
Cheerios...

Note: was told if use switches: 1-2-2 for 220v, or 2-2-1 alternatively.
2-2-2 for 240V.
 
I have figured it out. Dismantled the toroidal and found that Black-Green-orange corresponds to 0-100-120V, and Red-Yellow-White to be 0-100V-120V respectively. I could not dismantle the power PCB to look at the circuit trace underneath the jumpers......however a little trick does it....I used a small torch light to shine under the PCB and track the lines underneath the PCB. So here it is:
Krell KAV-300i jumpers version
Originally 120V: jumpers 12 to Jumper 3, J10 to J5 , J9 to J6 (total of 3 jumpers)

240V operation: J12 to J3 , J5 to J6 (total of 2 jumpers).
220V operation: J12 to J3 , J5 to J7 (total of 2 jumpers).


This should take care of all voltage conversion issues.......cheers!
:angel:
 
photos of Showcase 5/7

audioadvantage-albums-showcase-amp-7-picture276-018.jpg


audioadvantage-albums-showcase-amp-7-picture279-019.jpg


audioadvantage-albums-showcase-amp-7-picture278-013.jpg
 
hello, I want to convert my krell hts 7.1 U.S. 120V/60Hz to do work in Europe 240V/50Hz.
toroidal transformer is:
part: TC0075-0013
cust: hts2
input: 2x0-100-120 volts

Fuse F1: 250v no amperage, dark gray

processor U1: motorola
MC68HC16Z1VFC16
OH35S
QQHDO126

U3: M114636
U4: M2146136

SWITCH:
SW1: 2
SW2: 1
SW3: 2

the back of the unit, next to the IEC power there 50/60hz

I read the whole post and I think I have to put the switch to 2-2-2 for 240V.
I have to do something else?
how we recognize a processor that works in 60hz to another who works in 50/60hz?
thank you for your help
 
My Krell S-1000 processor/preamp has arrived. On the pcb board on the front panel, there is a Microprocessor marked MC68HC16Z1VEH16 (which is soldered on the board), and what looks like two PROM marked S/C PROC M1153126.0 and S/C PROC M2153126.1

Can someone shed some light and tell me where to start ?
 
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