Tektronix WFM6100 Opt. MB, Service Manual

Page: 39 / 76

General Maintenance
WFM6100, WFM7000, and WFM7100 With Option FP Service Manual
4- 9
Table 4- 4: Symptoms and causes (Cont.)
Symptom Possible sources or recommended detailed troubleshooting procedure to follow
Failures while running the advanced
diagnostics:
H
Display Data Bus
H
Display Address Bus
H
Raster Data Bus Input
H
DSP1 Data Bus
H
DSP1 Address Bus
H
DSP2 Data Bus
H
DSP2 Address Bus
H
DSP1 QDR1
H
DSP1 QDR2
H
DSP2 QDR1
H
DSP2 QDR2
H
RD SDRAM Data
H
RD SDRAM Address
H
DSP1 SDRAM Data Bus
H
DSP1 SDRAM Address Bus
H
DSP2 SDRAM Data Bus
H
DSP2 SDRAM Address Bus
H
Audio PLL Ctrl Outs
H
Audio PLL Freq Check
H
DSY
→
DSP1 Bus Output
H
DSY
→
DSP1 Bus Input
H
DSP1
→
DSY Bus Output
H
DSP1
→
DSY Bus Input
H
DSY
→
DSP2 Bus Output
H
DSY
→
DSP2 Bus Input
H
DSP2
→
DSY Bus Output
H
DSP2
→
DSY Bus Input
H
DSP1
→
DSP2 Bus Output
H
DSP1
→
DSP2 Bus Input
H
DSP2
→
DSP1 Bus Output
H
DSP2
→
DSP1 Bus Input
Perform secondary power supply checks.
Replace Main board.