Sony STR-DE825 Service Manual page 38

Pin No. Pin Name I/O
51 MD 2 I
52 HSTX I
53 RDS CLOCK I
54 I
RDS DATA
55 VOL UP O
56 VOL DOWN O
57 — —
O
58 U-RESET
59 U-SREQ I
60 U-MREQ O
61 O
U-DATA
62 U-CLOCK O
63 AUBUS-IN I
64 — —
65 —
—
—
66 —
67 AUBUS-OUT O
68 — —
I
69
FUNCTION-UP
70 I
FUNCTION-DW
71 — —
72 I
SP-A
73 SP-B I
74 POW-KEY IN I
75 — —
76 — —
I
77 RESET
78 — —
79 — —
—
80 —
81 VSS —
82 X0 —
83 X1 —
—
84 VCC
85 — —
86 — —
87 LED BASS. B O
O
88 LED VOL
89 O
LED SOUND FIELD
90 LED MUTE O
91 O
LED EQ ON/OFF
92 O
LED DOLBY DIGITAL
93 MBUS-V1 I
94 MBUS-V 2 I
I
95 MBUS-TV
96 I
MBUS-STATUS
97 — —
98 LAT O
99 — —
100 — —
MD 2 (To MD2 of MB90574)
Hardware STANDBY input
RDS clock input
RDS data input
Volume up data output
Volume down data output
Not used (Connected to GND)
Reset output (Connected to MB90574 RESET)
Slave request and data input (Connected to MB90574 SLV DATA/REQ)
Master request output (Connected to MB90574 DISPMR)
Master data output (Connected to MB90574 DISP DATA)
Master clock output (Connected to MB90574 DISPCLK)
Audio bus input
Not used (Connected to GND)
Not used (Connected to GND)
Not used (Connected to GND)
Audio bus output
Not used (Connected to GND)
Function encoder up input
Function encoder down input
Not used (Connected to GND)
Speaker A selector switch input
Speaker B selector switch input
Power key input
Not used (Connected to GND)
Not used (Connected to GND)
Reset (Display MCU)
Not used (Connected to GND)
Not used (Connected to GND)
Not used (Connected to GND)
GND (Connected to GND)
External ceramic filter 4 MHz is connected to this terminal
External ceramic filter 4 MHz is connected to this terminal
Power supply +5 V
Not used. (Connected to GND)
Not used. (Connected to GND)
BASS. B display data output to LED
VOLUME display data output to LED
SOUND FIELD display data output to LED
MUTE display data output to LED
EQ ON/OFF display data output to LED
DOLBY/DIGITAL display data output to LED
V1 input from MBUS
V2 input from MBUS
TV input from MBUS
STATUS input from MBUS
Not used. (Connected to GND)
Learning microprocessor latch output
Not used. (Connected to GND)
Not used. (Connected to GND)
— 60 —
Description