Sinclair ZX Spectrum 128 Service Manual

Sinclair ZX Spectrum Service Manual
Spectrum For Everyone https://spectrumforeveryone.com/
37
Integrated Circuits:
Circuit Reference
Device
Manufacturer/Type
Notes
IC1 (ULA)
7C001
Ferranti
IC2 (CPU)
Z80A/u780
Zilog/NEC
IC3, 4
Not used
IC5 (ROM)
SPECTRUM 128
VTI
4
IC6-IC13
4164
150ns
1
IC14
Not used
IC15-IC22
4164
150ns
1
IC23-IC26
Not used
IC27
ZX8401
Mullard
IC28
74LS04
Texas
IC29
HAL10H8CN
MMI, National
IC30
74LS157
Not National
IC31
74LS174
-
IC32
AY-3-8912A
General Instrument
IC33
1488
-
IC34
1489
-
IC35
Not used
IC36
TEA2000
Philips
IC37
74S04
-
IC38
MC1376
Motorola

Sinclair ZX Spectrum 128 Specifications

General

Brand	Sinclair
Model	ZX Spectrum 128
Category	Desktop
Language	English