Technics SA-DA10 Service Manual page 45

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31 SP A
32 AF MUTE
SEG16~SEG1
DEG1~DEG10
59 INIT_IN
60 VOL DOWN
61 VOL UP
62 VIDEO_C
63 IF DATA
64 LIMMITER
65 T CE
66 T CK
67 T DT
68 PRT_VCC2
69 MMD_CTR
70 COM CK
71 COM DO
72 COM DI
73 AVSS
74 VREF
75 SD
76 COM REQS
77 HELP LED/RDS CE
78 COM REQM
79 VIDEO B
80 VIDEO A
O Speaker A control output
O Muting control output
O FL segment signal output
O FL digit signal output
I Diode input initial settings
O Volume control output (Down)
O Volume control output (Up)
- Not used
I Serial data signal
O Power limitter control output
O Tuner control (CE) chip enable signal
O Selector/Tuner (CK) clock signal
O Selector/Tuner (DT) data signal
I Encoder of surround mode selector input1
I Encoder of surround mode selector input1
O Common clock signal
O Common digital output signal
I Common digital input signal
- GND for A-D converter
- Reference voltage for A-D converter
I SD signal detect input
O Common serial request output
O Help LED control output (Not used, open)
O Common mechanical request output
O Video selector control output B
O Video selector control output A