TRANSFORMER N52
POWER
N51A
N51A
RAM
N24A
N24A
T REGISTER
N23A
N23A
M REGISTER
N22A
N22A
BASIC ROM I
N21A
N21A
M REG TEST
N22C
N22C
a VAC 1
A
a VAC 1
A
GND 1
A <
GND 1
A <
GND 1
A <
GND 1
A <
AEN 1
A
a VAC 2
B
a VAC 2
B
V+5 2
B <
V+5 2
B <
V+5 2
B <
GND 2
B <
MONO.C 2
B
b VAC 3
C
b VAC 3
C
(V+UH) - 3
C <
(V+UH) - 3
C <
n R O M B 0 0 3
C n R O M B 0 1
V+5 3
C <
U82-4.6 3
C
b VAC 4
D
b VAC 4
D
V–12 4
D <
-
4
D -
n R O M B 0 3 4
D n R O M B 0 2
V+5 4
D <
MONO.RC 4
D
c VAC 5
E
c VAC 5
E
RAMB3/7 5
E <
-
5
E -
n R O M B 0 5 5
E n R O M B 0 4
nROMB05 5
E <
-
5
E
-
6
F
d VAC 6
F
RAMB2/6 6
F <
> 6
F T 0
nWTM 6
F n I N H
nROMB03 6
F <
-
6
F
d VAC 7
H
GND 7
H
RAMB1/5 7
H <
nWTM 7
H nRDM
SCK 7
H nRDM
nROMB00 7
H <
M15 7
H
-
8
J
GND 8
J
RAMB0/4 8
J <
SCK 8
J TBUS
n R A M A 0 8
J TBUS
nROMB01 8
J <
M14 8
J
GND 9
K
GND 9
K
(>) - 9
K nRAMA0
(nRAMA0) - 9
K - (<)
n R A M A 3 9
K MCK
nROMB02 9
K <
M13 9
K
GND 10 L
GND 10 L
(>) - 10 L nRAMA3
(nRAMA3) - 10 L - (<)
n R A M A 4 10 L nCCT
nROMB04 10 L <
M12 10 L
GND 11 M
nMW15 11 M nRAMA4
n M W 1 5 11 M M T S
n R A M A 1 11 M MTS
M11 11 M
GND 12 N
nMW14 12 N nRAMA1
n M W 1 4 12 N -
n R A M A 2 12 N R A M B 7
M10 12 N
V+5SENSE 13 P
nMW13 13 P nRAMA2
n M W 1 3 13 P LIx+MIx
R A M A 8 13 P R A M B 6
M9 13 P
V + 5 14 R
nMW12 14 R RAMA8
n M W 1 2 14 R nDO0
R A M A 9 14 R R A M B 5
M8 14 R
V + 5 15 S
nMW11 15 S RAMA9
n M W 1 1 15 S T 1
R A M A 5 15 S R A M B 4
M7 15 S
V + 5 16 T
nMW10 16 T RAMA5
n M W 1 0 16 T T 2
R A M A 6 16 T R A M B 3
M6 16 T
V+UH 17 U
nMW9 17 U RAMA6
n M W 9 17 U S B U S
R A M A 7 17 U R A M B 2
M5 17 U
V + 1 2 S 18 V
nMW8 18 V RAMA7
n M W 8 18 V nTTT
R W T 18 V R A M B 1
M4 18 V
V + 1 7 19 W
RWT 19 W <
(>) - 19 W SC1
M C A 19 W R A M B 0
M3 19 W
MGND 20 X
MCA 20 X <
- 20 X T 3
M A C 20 X nTTM
M2 20 X
MDB 21 Y
MAC 21 Y <
SC0 21 Y MSTL
M S T L 21 Y nEMB
M1 21 Y
M D E 22 Z
GND 22 Z <
nEDT 22 Z -
(-) 3.1 22 Z n C E M
M0 22 Z
XIN 23 AA M0
M 0 23 AA M 1 5
GND 24 BB <
GND 24 BB <
N51B
N51B
N24B
N24B
N23B
N23B
N22B
N22B
N21B
N21B
T REG TEST
N23C
N23C
GND 1
A
GND 1
A <
GND 1
A <
GND 1
A <
> 1
A GND
T15 1
A
GND 2
B
RAMRf/r 2
B n M R 1 5
(V+12) - 2
B - (<)
V+12 2
B <
> 2
B V+12
T11 2
B
V + 1 2 3
C
-
3
C n M R 1 4
(V–12) - 3
C - (<)
T P C 3
C M A C
> 3
C V–12
-
3
C
V+12SENSE 4
D
(GND) - 4
D n M R 1 3
TPC 4
D - (N22B.4)
(N23B.D) - 4
D n M A C
> 4
D MAC
T10 4
D
- * 5
E
-
5
E n M R 1 2
-
5
E nMR15
-
5
E n M 1 3
> 5
E n M R 1 5
T14 5
E
GNDSENSE 6
F
V+16 6
F n M R 1 1
-
6
F nMR14
-
6
F M 9
> 6
F n M R 1 4
T13 6
F
-
7
H
V+16 7
H n M R 1 0
-
7
H nMR13
n R E F D L Y 7
H M 1 0
> 7
H n M R 1 3
T9 7
H
n P O P 8
J
V+19.5 8
J n M R 9
-
8
J nMR12
nREFDLY 8
J M 1 1
> 8
J n M R 1 2
T8 8
J
V+16SENSE 9
K
(N23B.13) - 9
K n M R 8
-
9
K nMR11
R A M R r 9
K M 1 2
nROMB6 9
K n M R 1 1
T12 9
K
GNDSENSE 10 L
nMW7 10 L n M R 7
- 10 L nMR10
R A M R f 10 L n A R O M
nROMB7 10 L n M R 1 0
T7 10 L
V + 1 6 11 M
nMW6 11 M n M R 6
(V+16) - 11 M - (<)
V+16 11 M <
> 11 M V+16
- 11 M
V + 1 9 . 5 12 N
nMW5 12 N n M R 5
- 12 N nMR9
R O M B 1 6 12 N R O M n A 8
RE3 12 N n M R 9
- 12 N
GNDSENSE 13 P
nMW4 13 P n M R 4
(N24B.9) - 13 P nMR8
R O M B 1 7 13 P R O M A 8
ROMA8 13 P n M R 8
T6 13 P
V–12SENSE 14 R
nMW3 14 R n M R 3
n M W 7 14 R nMR7
n R O M B 0 6 14 R n R O M A 7
nROMA7 14 R n M R 7
T4 14 R
V – 1 2 15 S
nMW2 15 S n M R 2
n M W 6 15 S nMR6
n R O M B 0 7 15 S n R O M A 6
nROMA6 15 S n M R 6
T5 15 S
GND 16 T
nMW1 16 T n M R 1
n M W 5 16 T nMR5
n R O M B 1 0 16 T n R O M A 5
nROMA5 16 T n M R 5
- 16 T
GND 17 U
nMW0 17 U n M R 0
n M W 4 17 U nMR4
n R O M B 1 1 17 U n R O M A 4
nROMA4 17 U n M R 4
T0 17 U
GND 18 V
GND 18 V <
n M W 3 18 V nMR3
n R O M B 1 2 18 V n R O M A 3
nROMA3 18 V n M R 3
T1 18 V
n M W 2 19 W nMR2
n R O M B 1 5 19 W n R O M A 2
nROMA2 19 W n M R 2
T3 19 W
RAM 4K TEST N24C
N24C
n M W 1 20 X nMR1
n R O M B 1 4 20 X n R O M A 1
nROMA1 20 X n M R 1
- 20 X
RAMA3/A1 1
A RAMA1/A3
n M W 0 21 Y nMR0
n R O M B 1 3 21 Y n R O M A 0
nROMA0 21 Y n M R 0
- 21 Y
RAMA4/A2 2
B B0.RnW
GND 22 Z <
GND 22 Z <
nROMB11 22 Z nROMB10
T2 22 Z
B0.nPC 3
C B0.nCE
nROMB15 23 AA nROMB12
nRAMA5/A7 4
D B1.nPC
nROMB13 24 BB nROMB14
nRAMA8/A5 5
E nRAMA9/A6
> 25 CC GND
nRAMA6/A8 6
F B1.nCE
B1.RnW 7
H RAMA0/A0
B2.nPC 8
J B2.nCE
nRAMA7/A9 9
K B2.RnW
B3.nPC 10 L RAMA2/A4
B3.RnW 11 M GND
B3.nCE 12 N V+s
HP 9830 Computer
Section: Connectors - Power & Memory
Page: L5
Rendition: 2014 Dec 26