4535 611 98931 iE33 Service Manual Page 242
CSIP Level 1 Troubleshooting: Power Supply Information
1. Current draw and power draw specifications are for the rated voltage ranges. (The “normal” specification includes system opera-
tion with the VCR recording, all other OEMs at the idle state, and with the system scanning. The “peak” specification includes sys-
tem operation with OEMs.)
Power Supply
Information
The system software monitors the power-supply enable voltages to ensure they are within toler-
ance. If the voltages are not within the tolerances, the system shuts down. If the system shuts
down, none of the voltages are enabled (all voltages are 0 V). However, if the power supply is
fully operational and a cable is bad, you measure voltages on the Host and SIP motherboards
(Tabl e 9- 2). System power status is indicated by the LEDs listed in Table 9- 3.
The software monitors and logs the voltages but does not shut down the system. The power
supply hardware shuts down the system but does not monitor or log voltages. That is, the volt-
age log may record voltages that are out of specification before the system shuts down, or the
hardware may shut the system down before an entry has been made in the log.
Table 9-1 Power Specifications
Measurement (System Only) 100 Vac 120 Vac 230 Vac
Hot/Neutral 100 Vac 120 Vac 230 Vac
Current Draw (normal/peak)
1
7.44/7.67 A 6.15/6.34 A 3.24/3.36 A
Power Draw (normal/peak)
1
741/764 VA 737/760 VA 746/773 VA
734/754 W 727/750 W 721/743 W
Neutral-to-Ground < 5-Vac RMS < 5-Vac RMS < 5-Vac RMS
Line Loss < 3% < 3% < 3%
Distortion < 20% < 20% < 20%
Common Mode Noise < 1.5 Vp-p < 1.5 Vp-p < 1.5 Vp-p
Normal Mode Noise < 10 Vp-p < 10 Vp-p < 10 Vp-p
To Next Page
Loading...