Sinclair ZX Spectrum 128 Service Manual

Sinclair ZX Spectrum Service Manual
Spectrum For Everyone https://spectrumforeveryone.com/
36
Coils:
Circuit Reference
Value
Rating/Tolerance
Manufacturer/Type
Notes
COIL
Spectrum TFR
N Devon
L1/2
N Devon, Toroidal/2-
winding
7
L3
Toko, 7KL (PF291ACS-
1885Z)
L4
Toko, 7KL ( ? )
8
L5
Not used
L6, 7
100Uh
Taiyo, LAL04-0-101K
Connectors:
Circuit Reference
Value
Manufacturer/Part No
EAR, MIC
3.5mm jack socket
N Devon
PWR
2.1mm co-axial socket
Hoseiden
KB1
5-way ribbon connector
BURNDY TE-5-5S1V3
KB2
8-way ribbon connector
BURNDY TE-8-5S1V3
RGB
8-way DIN socket or 9-way D-
Type connector
KEYPAD,
RS232
6-way telephone jack socket
BICC, BT Type, 603A
Crystals:
Circuit Reference
Frequency
Manufacturer/Type
Notes
X1
17.734475MHz
5
Diodes:
Circuit Reference
Device
Manufacturer/Type
Notes
D1-D8
1N4148
Signal
D9-D12
Not used
D13
1N4148
Signal
D14
Not used
D15
BA157
Rectifier
D16
Not used
D17
BA157
Rectifier
D18
Not used
D19
BZY88C5V1
Zener
D20-D27
1N4148
Signal
D28, D29
BA157
Rectifier
D30-D34
1N4148
Signal

Sinclair ZX Spectrum 128 Specifications

General

Brand	Sinclair
Model	ZX Spectrum 128
Category	Desktop
Language	English