8525-286 Planar
Model 25 Resources (By William R Walsh) Eduquest stuff, too!

25start.tg0     IBM PS/2 MOD 25 starter diskette v1.0 
25sxstr.exe    Adv Diag for 25, 35, 40 v1.3 
253540dg.exe   PS/2 Adv Diag 25,35,40 disk ver 1.20 
adv25dia.exe   PS/2 Model 25 Advanced Diag ver 1.00 
rs25286a.tg0   PS/2 Model 25-286 Starter disk - V1.00 
25-286ad.exe   PS/2 Model 25-286 Advanded Diags V 1.0 

190-082  IBM PS/2 Model 25 286 (8525-006, G06, 036, G36)
187-148  IBM 8525, PS/2  Model 25
188-081 IBM PS/2 Model 25 LS
192-019 IBM PS/2 Model 25 SX (8525-K00, K01, L02)
188-083 PS/2 Model 25 20MB Fixed Disk Drive and 20MB Fixed Disk Drive with adapter
189-145 IBM PS/2 Model 25 720KB 1-Inch High Diskette Drive Option



 
F1 KB/Mouse fuse
J1 Pointing-device connector 
J2 Keyboard connector 
J3 Parallel port
J4 Display connector
J5 Serial port 
J6 Bus-adapter connector
J7 Power-supply connector
J9 Memory packs
J10 Optional memory packs 
J11 Hard-disk drive connector 
J12 Diskette-drive connector
J13 Password-override connector
J14 Power-supply connector 
J15 Earphone?
SP1 Speaker 
ZM1 Math coprocessor connector
ZM2 VLSI VL82C100
ZM3 VLSI VL82C102A		 ZM4 VL82C103A
ZM5 VLSI VL82C104
ZM6 VLSI VL82C101B
ZM9 VLSI VL16C451
ZM14 27F4094 DISKGA
ZM18 15F6864 VGA
ZM19 NEC D765BC
ZM23 IMSG171P-35
ZM33 8042
ZM35 Clock module connector 
ZM36 80286-10
ZM46 EPROM
ZM47-54 64Kx4
Y1 14.318 MHz osc
Y2 25.175 MHz osc
Y3 20.322 MHz osc
Y4 20 MHz osc
Y5 48.00000 MHz osc
1

30 pin SIMM 100-150ns w. parity 
Min/Max on system board: 512/4MB (16MB using adapter cards)

William R. Walsh sent me the original scan.


8525-286 Riser


8525-286 Earphone Riser

L1 TDK ZJY-2P
Three conductors, Red, White, Black.

LIMITATIONS:  The ability to use a non-IBM memory expansion card in
the Model 25 286 is dependent on the flexibility of the card in establishing its starting memory address. The amount of planar memory (standard plus kits) and the corresponding starting memory address is as follows:

PLANAR        EXPANSION CARD
MEMORY        STARTING ADDRESS
512KB          512KB
1MB            1MB +384KB
2MB            2MB +384KB
4MB            4MB +384KB
       Memory expansion cards must support the listed starting address to properly operate in a system with a given amount of planar memory.

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