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Technics SJ-HD505 Service Manual page 35

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TRACK to "ONE". (Refer to Fig.3.)
2. As shown in Fig.4, short-circuit the no. 8 pin (TP77) of IC10 and
GND (TP74) with the lead wire. (This enables the unit to enter the
operation mode and to activate the operation switches on the
front panel.)
3. Apply DC 10 V between the no. 5 pin (+10 V) and no. 11 pin (GND)
of the CP304 (connector) as shown in Fig.5. ("REC" and "
will light up. "
9.2. Preparing Play/Rec. Cheking
Connect the oscilloscope or the speaker with built-in amplifier to the section between CP304-
12pin[LINE OUT(Rch)] and 17pin(A.GND) as well as the section between CP304-14pin[LINE
OUT(Lch)] and 17pin(A.GND) and check if the signals are outputting from this unit. (As shown
in Fig.5.)
" is orange color.)
Fig.3
Fig.4
"

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