Troubleshooting and Maintenance 6 Chapter

Maintenance

Regular Checks

Digital hours meter

The digital hours meter keeps cumulative counts of the total operating time, the head drum rotation time, the tape transport operating time, and the number of threading/unthreading operations. These counts can be displayed on the monitor screen and the time counter display of this unit. Use them as guidelines for scheduling maintenance.

In general, consult your Sony dealer about necessary periodic maintenance checks.

Digital hours meter display modes

The digital hours meter has the following four display modes.

• T1 (OPERATION) mode

The cumulative total hours during which the unit is powered on is displayed in 10-hour increments.

• T2 (DRUM ROTATION) mode

The cumulative total hours of drum rotation with tape threaded is displayed in 10-hour increments.

• T3 (TAPE RUNNING) mode

The cumulative total hours of tape transport operation is displayed in 10-hour increments.

• CT (THREADING) mode

The cumulative number of tape threading/unthreading operation pairs is displayed in 10-operation pair increments.

For all modes except T1 (OPERATION), there are two types of count: a “trip” count, which is resettable, and the cumulative total from manufacture, which is unresettable.

Displaying the digital hours meter

For details on menu operations, see Chapter 4 “Menu Operations.”

1 Enter Menu mode by pressing the MENU key.

If MENU GRADE on the top menu is set to BASIC, change it to ENH.

2 Highlight MAINTENANCE MENU by pressing the Vor vkey, then press the bkey.

The Maintenance menu is displayed.

SETUP MENU

MAINTENANCE MENU

HOURS METER

VERSION DISPLAY

3 Highlight HOURS METER by pressing the Vor v key, then press the bkey.

The cumulative counts by the digital hours meter are indicated on the monitor screen and the character display.

Digital hours meter indications on the monitor screen

All four counts (T1, T2, T3, and CT) are indicated on the monitor screen.

HOURS METER

T1

00000

x10

HOURS

T2

0000/00000

x10

HOURS

T3

0000/00000

x10

HOURS

CT 0000/00000

x10

COUNT

T1 : OPERATION

T2 : DRUM ROTATION

T3 : TAPE RUNNING

CT : THREADING

The four-digit value to the left of the slash is the resettable trip count, and the right value is the cumulative total from manufacture.

Digital hours meter indications on the character display

One of the hour indications appears on the character display at a time. Use the Vand vkeys to change the item displayed.

Initially, only the trip value appears. Hold down the b key to display also the cumulative total from manufacture, which will appear to the right of the trip value and the slash.

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Chapter 6 Maintenance and Troubleshooting