AU-999 Partslist

Help with AU-999 partslist verification

At last I think that I have completed a correct shopping list for the recap and
restoration of my "new" AU-999. The amplifier is not yet delivered to me so I
have done this list from the schematic diagram, the parts list and information
from countless threads here at AK.

I know that the list is quite long but I would appreciate very much if as many
Sansui "experts" as possible could take time to check the list to see if it's ok.
I want to make it as correct as possible so it could be used and to good help
in future AU-999 projects.

All components are planned to be ordered from Mouser except the Nichicon
Super Through capacitors (Parts ConneXion).

Components for the Bass EQ Control Mod & Pre-amp Mod are included.

The SP Protector Block (Crowbar) F-1334 will be removed.

Have I missed anything?
I'm trying to get the list as complete as possible.

Looking forward to your inputs/comments
Bernt



Main Filter Caps
C002 & C003 Electrolytic Capacitor 4700µF 50V (40mm*80mm)
Nichicon Super Through 6800µF 63V (40mm*100mm)

Outputs
TR819-TR822 Silicon Transistor 2SC898 863-MJ21194G MJ21194G

F-1228 Head Amp. Block
C603 Electrolytic Capacitor 10µF 25V 647-UKL1V100MDDANA 10µF 35V
C604 Electrolytic Capacitor 10µF 25V 647-UKL1V100MDDANA 10µF 35V
C607 Electrolytic Capacitor 47µF 10V 647-UKL1C470KEDANA 47µF 16V
C608 Electrolytic Capacitor 47µF 10V 647-UKL1C470KEDANA 47µF 16V
C609 Electrolytic Capacitor 33µF 6.3V 647-UKL1C330KDDANA 33µF 16V
C610 Electrolytic Capacitor 33µF 6.3V 647-UKL1C330KDDANA 33µF 16V
C621 Electrolytic Capacitor 33µF 50V 647-UKL1J330KPD 33µF 63V
TR601 Silicon Transistor XA495 522-ZTX795A ZTX795A
TR602 Silicon Transistor XA495 522-ZTX795A ZTX795A
TR603 Silicon Transistor 2SC458 512-KSC1845FTA KSC1845FT
TR604 Silicon Transistor 2SC458 512-KSC1845FTA KSC1845FT
TR605 Silicon Transistor XA495 522-ZTX795A ZTX795A
TR606 Silicon Transistor XA495 522-ZTX795A ZTX795A

F-1209 Tone Control Block *2
C719 Electrolytic Capacitor 10µF 25V 647-UKL1V100MDDANA 10µF 35V
C723 Electrolytic Capacitor 47µF 10V 647-UKL1C470KEDANA 47µF 16V
C729 Electrolytic Capacitor 33µF 25V 647-UKL1V330KEDANATD 33µF 35V
C733 Electrolytic Capacitor 47µF 10V 647-UKL1C470KEDANA 47µF 16V
C735 Electrolytic Capacitor 10µF 25V 647-UKL1V100MDDANA 10µF 35V
TR705 Silicon Transistor XA495 522-ZTX795A ZTX795A
TR707 Silicon Transistor XA495 522-ZTX795A ZTX795A
TR709 Silicon Transistor XA495 522-ZTX795A ZTX795A

F-1159 Driver Block *2
VR801 Output Balance Adjustor 5kΩ 81-PV37P502C01B00 5KΩ Murata 12turn
VR803 Bias Adjustor 1kΩ 81-PV37P102C01B00 1KΩ Murata 12turn
C807 Electrolytic Capacitor 47µF 10V 647-UES1C470MPM 47µF 16V Bipolar
C809 Electrolytic Capacitor 100µF 25V 647-UKL1V101MPDANA 100µF 35V
TR801 Silicon Transistor XA495 522-ZTX795A ZTX795A
TR803 Silicon Transistor XA495 522-ZTX795A ZTX795A
TR805 Silicon Transistor 8002-1 522-ZTX694B ZTX694B
TR807 Silicon Transistor 8002-1 522-ZTX694B ZTX694B
TR809 Silicon Transistor 2SC281 Any replacement for this?
TR811 Silicon Transistor 2SC875 512-KSC2690AYS KSC2690AYS
TR813 Silicon Transistor 2SA532 512-KSA1220AYS KSA1220AYS
D801 Diode SM-150-01 512-1N4148 1N4148
D803 Diode SM-150-01 512-1N4148 1N4148

F-1208 Filter Block
C717 Electrolytic Capacitor 10µF 25V 647-UKL1V100MDDANA 10µF 35V
C718 Electrolytic Capacitor 10µF 25V 647-UKL1V100MDDANA 10µF 35V
TR701 Silicon Transistor XA495 522-ZTX795A ZTX795A
TR702 Silicon Transistor XA495 522-ZTX795A ZTX795A
TR703 Silicon Transistor XA495 522-ZTX795A ZTX795A
TR704 Silicon Transistor XA495 522-ZTX795A ZTX795A

F-1230 Ripple Filter Block
C006 Electrolytic Capacitor 220µF 50V 647-UPW1J221MPD 220µF 63V
C007 Electrolytic Capacitor 220µF 50V 647-UPW1J221MPD 220µF 63V
C008 Electrolytic Capacitor 100µF 50V 647-UPW1J101MPD 100µF 63V
C009 Electrolytic Capacitor 100µF 50V 647-UPW1J101MPD 100µF 63V
C010 Electrolytic Capacitor 220µF 50V 647-UPW1J221MPD 220µF 63V
D002 Silicon Diode 10DC-1R 512-1N4004 (2*1N4004)
TR001 Silicon Transistor 2SD223 512-KSC5603DTU

F-1277 Minus Ripple Filter Block
C814 Electrolytic Capacitor 100µF 50V ±10% 647-UPW1J101MPD 100µF 63V
C816 Electrolytic Capacitor 4.7µF 50V ±10% 647-UPW1J4R7MDD 4.7µF 63V
TR824 Silicon Transistor 2SA532 512-KSA1220AYS KSA1220AYS

F-1231 Plus Ripple Filter Block
C813 Electrolytic Capacitor 100µF 50V ±10% 647-UPW1J101MPD 100µF 63V
C815 Electrolytic Capacitor 4.7µF 50V ±10% 647-UPW1J4R7MDD 4.7µF 63V
TR823 Silicon Transistor 2SC875 512-KSC2690AYS KSC2690AYS

AU-999 Bass EQ Control Mod
Metal film resistor 1MΩ ¼W 71-CCF071M00JKE36 *2
Metal film resistor 2.2kΩ ¼W 71-CCF072K20JKE36 *2

AU-999 Pre-amp Mod
Metal film resistor 3.3kΩ ¼W 71-CCF073K30JKE36 *2
Metal film resistor 1MΩ ¼W 71-CCF071M00JKE36 *2
Metal film resistor 1kΩ ¼W 71-CCF071K00JKE36 *2
Metal film resistor 2.2kΩ ¼W 71-CCF072K20JKE36 *2
Metal film resistor 100Ω ¼W 71-CCF07100RJKE36 *2

Here is a link to the thread on mine if you would like to compare notes.

http://www.audiokarma.org/forums/showthread.php?t=464691

It is a worthwhile project to do, that is for sure, especially doing the mods that Kevzep has outlined.

Have fun.

George.

GeoKost said:

Here is a link to the thread on mine if you would like to compare notes.

http://www.audiokarma.org/forums/showthread.php?t=464691

It is a worthwhile project to do, that is for sure, especially doing the mods that Kevzep has outlined.

Have fun.

George.

Click to expand...

Thank's George for your comment!

Yes, I'm very excited about this project because of all that I have read all
over the net about the AU-999.

I will spend some more time reading some of the old recap/restore threads
but I feel fairly confident about the list and plan to order later this week.

I will not get the amplifier on my desk until the end of next month so I have
plenty of time to prepare this project well.

Bernt

Great list ThaiBerra. I will be going thur my reconditioned 999 and replacing all the small signal transistors now. However I am in New Zealand and I have the ZTX795A as obselete/unavailable thru suppliers that deliver to NZ (element 14 & RS). Can anyone recommend either an obtainable equivalent to this tranny, or a source that still stocks it? These suppliers do stock the ZTX694B however. thanks!

Ztx795a

slimecity said:

Great list ThaiBerra. I will be going thur my reconditioned 999 and replacing all the small signal transistors now. However I am in New Zealand and I have the ZTX795A as obselete/unavailable thru suppliers that deliver to NZ (element 14 & RS). Can anyone recommend either an obtainable equivalent to this tranny, or a source that still stocks it? These suppliers do stock the ZTX694B however. thanks!

Click to expand...

Hi slimecity,
Thank's for your comment on my list.
I put a little extra effort in making it hoping it could be used by
more vintage fan's than just myself.

Check this post by kevzep.
Perhaps the alternative (KSA1220A) are available in NewZealand.