Sony HDC1000 Maintenance Manual page 26

TR-136 Board (HDC1550)
A
B
S1
1
2
3
TR-136 BOARD (SIDE A)
Ref. No. Name
S1-1
S1-2
S1-3
S1-4
S1-5
S1-6 to S1-8
1-18
C
D
Description
When this switch is set to ON, the multiformat
color-bar signal is output from the built-in video
test signal generator.
Spare (not used)
When this switch is set to ON, the 400 Hz sine wave
is output from the built-in audio test signal generator.
When this switch is set to ON, the 1 kHz sine wave
is output from the built-in audio test signal generator.
Spare (not used)
Factory setting
OFF
OFF
OFF
OFF
OFF
HDC1000/V1(E)