DTC-A8, PCM-2600, PCM-2800 - Sony Audio Service Manual (repair manual). Page 69

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SECTION 8
TEST MODE
This unit is provided with the test mode for adjustments (Details are provided in the Service Manual) and a test mode
which displays the internal state of the mechanism microprocessor and how long the drum has been operating memorized
in the EEPROM (IC517). To set this latter test mode, it is necessary to use the RM-D55A or RM-D868 remote
commander shown in 
Fig. 8-1
 which has been partially remodeled. When the numerical keys and new button added
shown in 
Fig. 8-1
 (hereafter referred to as “TEST”) are pressed at the normal display, test messages and operation mode
settings can be set, and microprocessor internal information will be shown at the display.
Fig. 8-1. Remote Commander Used in Setting Test Mode
Fig. 8-2. Display
PGM NO.
MARGIN
*
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Page of 78
Display

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