Sinclair ZX Spectrum 128 Service Manual page 36

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