Sinclair ZX Spectrum

Sinclair ZX Spectrum Service Manual
Spectrum For Everyone https://spectrumforeveryone.com/
44
8.6 COIL
Circuit Reference
Issue 2
Issue 2 Mod
Notes
Issue 3
Rating/Tol
Type
Coil
SPECTRUM
-
-
SPECTRUM
-
1703
8.7 CONNECTORS
Reference
Description
Manufacturer/Part Number
EAR
3.5mm jack socket
MIC
3.5mm jack socket
PWR
2.1mm co-axial socket
KB1
5-way ribbon connector
Molex 5229-05CPB
KB2
8-way ribbon connector
Molex 5229-08CPB
8.8 CRYSTALS
Circuit Reference
Issue 2
Issue 2 Mod
Notes
Issue 3
Manufacture Type
X1
14.000000MHz
-
Note
14.000000MHz
X2
4.433619MHz
-
6
4.433619MHz
8.9 DIODES
Circuit Reference
Issue 2
Issue 2 Mod
Notes
Issue 3
Manufacture Type
D1-D9
1N4148
-
-
1N4148
Signal
D10
1N4148
-
-
-
Signal
D11-D13
1N4148
-
-
1N4148
Signal
D14
1N4148
-
4
-
Signal
D15
BA157
-
-
BA157
Rectifier
D16
5V1
-
-
5V1
Zener
8.10 INTEGRATED CIRCUITS
Circuit Reference
Issue 2
Issue 2 Mod
Notes
Issue 3
Manufacture Type
IC1 (ULA)
5C102
5C112
1
6C001
Ferranti
IC2 (CPU)
Z80A/u780
-
Z80A/u780
IC3/IC4
74LS157N
-
74LS157N
Not National
IC5 (ROM)
SPECTRUM
SPECTRUM
SPECTRUM
NEC/Hitachi
IC6-IC13
4116
-
4116
150ns
IC14
LM1889
-
LM1889
IC15-IC22
TI4532
-
TI4532 48K only
Texas
MCM3732
OKI
IC23
74LS32N
-
74LS32N 48K only
IC24
74LS00N
-
74LS00N 48K only
IC25/IC26
74LS157N
-
74LS157N 48K only
Not National