5530-Z      PS/55Z  ( 5530Z286 )  5530-S     PS/55Z  ( 5530ZSX )  5530-T      PS/55  5530-U/V  PS/55Z  5530-W    PS/55  5530-L      PS/55

Model 5530 initially started as Low-Priced PC which was targeted to personal market.   IBM Japan named the PC as " PS/55Z " to distinguish from PS/55 which was the  main stream of MCA line targeted to business market. 
Before IBM joined into personal users market, IBM made a marketing model named 5530Z and sold it to a company  called "Shinngaku-sha" ( seemed to be a company worked for educational field ) in Nov. 1998. 
    5530Z was speced as follows.
    CPU  :   80286-10MHz
    BUS  :   MCA
    RAM :   1MB ( MAX 4MB )
    Video:   PS/55 Display Adapter
    OS   :   JDOS 4.0
   (  No further information available at this moment 2002.02.16 )

After one year of research and surveillance with 5530Z-286, IBM Japan rearranged 5530Z-286 in many ways and introduced PS/55Z 5530-Sxx which is usually described as 5530-ZSX  ( and probably PS/55 5530-T was introduced together with 5530-ZSX according to the date printed on a sales brochure of 5530-T03/T06 ). 
Main target of  PS/55Z 30ZSX  was personal market which was almost occupied by NEC with their PC9801 series. 
 

Specs ( Stage -I )  Specs ( Stage -II )  System Unit Diagram  Accessing system board  Photo image is took from a  brochure dated 11-90. So it should  be Stage-II.  Video cable is longer  than stage-I system.

PS/55Z 5530ZS is the first model of  MCA  5530 series (  Except 5530Z-286 which had been sold to closed market  for marketing purpose ).   In order to reduce retail price of expensive MCA line-ups, IBM Japan picked up i386SX CPU for PS/55Z.   The basic design might be derived from PS/2 Model 25Z  as you can see above photo.
12" color display was built in a body. Unlike PS/2 25Z, logic unit is slide-in type ( no need to set the system up-side down while accessing system board and inner parts ).  AND, PS/55Z 5530 is an MCA system. 
 
 

System Unit  ( from quick reference of  30ZSX  stage-I )

1  Display and Front Cover Assy  2 Label, Serial Number  3 Bezel. Diskette Drive  4 Bezel, Blank  5 Flap Assembly  6 Pedestal Assembly  7 Cable, Signal Ground  8 Power Cord (2P)  9 Cover, Base 10 Security Key Assy 11 I/O Blaket- Blank 12 System Board 13 i80387SX, 16MHz Module (Op) 14 2MB Memory Card 15 Option Adapter Guide Block 16 1.44MB diskette Drive 17 Guide, Diskette Drive ( L & R ) 18 Cable, Flat, for one FDD 19 Cable, Flat, for two FDD 20 Interposer Card ( Option Slot ) 21 Display Adapter IV Card 22 Display Expansion Card ( Op ) 23 Spacer ( Op ) 24 HDD interface card 25 Fixed Disk Drive ( ESDI ) 26 Guide, Fixed disk drive 27 Speaker Holder Assy 28 Battery

Accessing system board ( From users manual 2nd edition dated Nov. 1989.   )
 

	slide the blue lock lever to the left and lock the system unit  not to swing.
	Detach video connector from PS/55 Display adapter placed at the  most upper slot ( Display adapter IV should be placed  there ). Unscrew two knobs at the middle of rear panel.
	Place the connector to the "foxhole" prepared at the support guide for the connector cover. Note: The video cable is very short and will not reach to the middle          slot.
	Grab the bottom edge of the base unit and pull it backward slowly  till it will stop sliding.
	Hold the base unit and pull it upward slightly and then slide it backward so that you can pull the base unit completely.
	End !

Model 5530-T The body, outer case  and  screen  are all same with  model 5530ZSX.  i386DX-20MHz CPU was given and  the model was classified to PS/55.  Want to see sales brochure ?

CPU
386DX-20MHz. 
486BL2-66 upgrade sub-board  from Kingston was available.  To use this parts, an interposer which changes the position  of  pin #1 is required.  Not sure for 486BL3 upgrade by Evergreen if it could be fit in  the planar.

Built-in Display 
12" color display ( long persistence phosphors  ) was integrated into the body.
   Character mode ; 1066 x725 dots
   Graphics mode; 1024 x768 dots

SIMM 
72pin SIMM socket x 3.  2MB/80ns parts is standard. 
One double-decked 4MB SIMM  P/N 23F2165 can be used. 
Total 8MB in combination of  2MB+2MB+4MB is the MAX on the planar according to users guide.

Actually 5530-T can take 24MB of RAM in combination of 3x 8MB 80ns SIMMs on the planar. Not sure if PC DOS 7 can actually see total 24MB of RAM.  I've tested JDOS5.0 + HIMEM.SYS in PC DOS 7.0 on the box but  I got only 16MB of RAM reported using MEM command ( this combination works for other 486 class PS/55s ). 

   23F3270  2MB ; memory kit  III
   56F9046  2MB ; memory kit  IV
   79F2566  2MB ; memory kit  V
   79F2536  4MB ; memory kit  VI
   79F2467  8MB ; Could be usable too.
   2-8MB memory expansion 23F3056 

HDD
ESDI ( DBA2 ) 30MB to 80MB depending on model-type. 
T02 was 2 FDD model and without HDD.

FDD
2 Mode drive for all models.

BUS Riser
5530-T  has only 3 MCA slots on it's riser card.  1 slot should be occupied  with a PS/55 Display Adapter, hence only 2 slots  are left  for users. 

Reference
Version 1.50 based on DOS/V is the latest.
In order to use XGA, XGA-2 and SVGA /A you need  to use  Ver.1. 50. 
The original Reference is based on JDOS and with the original version, option disks for SVGA or XGA can't be read. 
The Ref version 1.50 can be commonly used for model 5550-S/T/V, 5570-T/V, 5540-T, 5545-T. 

Video
PS/55 Display Adapter IV ( 512KB VRAM; Optional 512KB VRAM board was available ) was used for 5530-T and 5530Z-SX.
Video cable from display unit is very short in its length and it will not reach except the most upper MCA slot where a stock  AVE Video Adapter IV should be placed. 
IF you are planing to use XGA or any other Cirrus based Video Adapter, you have to use one of lower two slots to which the video cable will not reach. Thus you have to use appropriate video extension cable with D-sub 15pin female on one end and D-SUB 15 pin male on the other end. 
 38F4816: Cable for Video signal Extension is listed in Service Summary for 5530-Z.
 
 

5530-U

5530-U/SLC

5530-V

NEW 386 PLANAR
U and V planar are almost same.  386SX20 on a U planar was changed to IBM386SLC20 nad J1 beside the power connector is shifted beside U1 like V2 planar below. 
V2 planar has aux power outlet J22.  J10 on U/V planar is not seen on V2 planar . Y3 ( CPU clock OSC ) is shifted backward. 

    5530-U (  and V  )                                                                    5530-V2 

U6    95F4436 U7    20R6 U10  DALLAS DS1285Q U8    i386SX-20  U9    92F1495 U21  CO-PRO SOCKET  U24  N82077A U36  91F7490	Y3  40.00MHz Y4  24.00MHz Y5  14.3185MHz Y6  22.1184MHz J8  BUS RISER SLOT	U6    95F4436 U7    20R6 U10  DALLAS DS1285Q U8    IBM486SLC2-40  U9    92F1495 U21  CO-PRO SOCKET  U24  N82077SL U36  91F7490	Y3  40.00MHz Y4  24.00MHz Y5  14.3185MHz Y6  22.1184MHz J8  BUS RISER SLOT

BUS Riser Card

I think the riser outlined left is for 5530-V2 .  there are another 16-bit riser with different P/N which   has silk printings as follows.      INTERPSER      P/N 95F4218      EC  C80670A  Maybe it's for 5530-U/V .  Basically these risers are same except P/N 95F4218  has 2 registers and 2 capacitors and 2 rework wires  on the solder side of the PCB.

 

Options

Item	ID#	Price  May-92	Price Apr-93
Minny Mouse	07G0532	12,000
80387SX-20 co-pro	07G0553	120,000	60,000
2MB Memory kit	79F5395	50,000	30,000
4MB Memory kit	79F5396	100,000	56,000
8MB Memory kit	79F5397	200,000	104,000
3.5" Diskette Drive	95F4388	40,000
3.5" Diskette Drive  ( 4Mode Drive )	54G1680		34,000
80MB Hard Drive ( ESDI )	07G0536	200,000
160MB Hard Drive ( ESDI )	07G0554	300,000
100MB SCSI Hard Drive  *1	35G2839	200,000	140,000
200MB SCSI Hard Drive  *1	35G2840	300,000	240,000
3.5" Optical Drive ( MO )	79F1781	298,000	298,000
SCSI Adapter /A  ( 16bit )	64F9050	61,000
SCSI Adapter -II/A ( 32bit )	06G6760	88,000	88,000
TokenRing Adapter	4773083	130,000
TokenRing 16/4 Adapter	93F2970	142,000	142,000
Ethernet Adapter 10Base 2/5	35G2793	87,000
Ethernet Adapter 10Base T/5	35G2806	58,000
MultiProtocall Adapter  IV /A	95F4528	58,000
Modem Adapter /A 300/1200/2400bps	79F2658	49,800

  ...Hard to believe there were ordinal users who could buy such expensive peripherals for personal usage....... 

Options:
  i487SX co-processor : 07G3013 , Price  200,000
  486-20/40 Processor Upgrade Option : 35G2996 , Price 280,000 

5530-LXC

5530-L was the last model of  PS/55 30 series.  It's really a nice machine with a  486 class L planar and integrated 13" color display.  IBM 486-BL2/66 was soldered on the planar and a ZIF socket for an  overdrive processor  was ready on the planar. Unfortunately the socket is not PODP ready,  it's a socket 1. If you have a  R  planar for desktop  5551-R  which  has ZIF socket 3,  you  can  make  your  own  "5530-R" which  was  not  released  by  IBM Japan.

5530-L Specification ( Stolen from IBM Web Site )

 Planar         Same with 5551-L except Power connector
 CPU            IBM BL486DX2-66 with Overdrive socket ( ZIF socket 1 )
                    Accept ODPRDX4-100. DX4-100.  Also accept am5x86 and Cyrix with voltage interposer.
                    PODP can't be used for this model.
 SIMM          70ns True parity SIMM x 4 slots 
 HDD            IDE
 FDD            3 Mode drive ( 1.44MB/1.2MB/720KB )
 MCA Slots   32bit x4 ( Full size x 3, half size x 1 ) 
 Video          Type LXC : XGA-2 
                   Type L0C : PS/55 Display Adapter /A ( Possibly DBCS D/A /NI-J )
 Reference    Ref. Ver.1.21   ( Same reference with 5551-R/L and 5521-Y )
 Diag            Diag. Ver.1.21 ( Ditto )
 

32-but BUS Riser

Dimensions of the riser card are same with 16-bit card.  Slot #2 is BVEC and XGA-2 or DBCS D/A /NI-J should  be installed  on this slot.  I suppose 5530-W uses same riser card.

 

Front view    4 slot PCMCIA /A can be seen in the left bay where a FDD    will sit  in stock condition.     To install 4 Slot PCMCIA Adapter, FDD should be moved to the    right bay. This adapter can be used solely in this newr 30 body.    Unfortunately I don't have a front bezel to mate with this adapter.

Rear view    Base unit is half-pulled out.

Base unit  From the bottom, you can see ; 1)  4 slot PCMCIA/A,  2)  XGA-2, 3)  Madge Smart RingNode 16/4,  4)  Short PS/2 Adapter/A for Ethernet networks with SMC chip. DSAA 720 is loaded at the HD sled.  Thus this machine should be named as 5530-RX7;    R planar with  XGA-2 and 720MB HD.