HP D8911A Service Manual page 13

5-3 TRANSISTOR & DIODE CIRCUIT
LOCATION
D101
Q101
D418
D431
D405, D424
D406, D407
D408
Q416
D414~ D417,D419
D421 ~ D423
Q401
Q402
Q403
Q404, Q406
Q405
Q407
Q410, Q412, Q417
Q418, Q420
ZD601,ZD602
D707
D703
D704
D705
FUNCTION AL DESCRIPTION
For C102 Discharge
For LED Indicator Control
Protection Diode for Snubber Clip Diode ZD401
Protection Diode for B+ Control
Speed up for Q403
Supply a bias for D408
Damping Diode and Modulation Diode
B+ MUTE
Buffer Diode for IC403
Detected for Q406
B+ Mute Control
Horizontal Driver
Horizontal Out Put
A differential Amp for Drive Q405
DarlingtonTransistor for H-Size Control
Horizontal Linearity Correction Control
Horizontal S-Correction Control
Horizontal S-Correction Control
VF Voltage Divider
Mixing Diode
Buffer Diode
Rectifier for 250V Supply
Protection Diode for Q708