Circuit Boards Location - Sony STR-DE495 Service Manual

Pin No. Pin Name I/O
57, 58 NC I Not used (Fixed at L)
59 VOL (B) I Volume encoder signal input
60 VOL (A) I Volume encoder signal input
61 DIN O Serial data output for FL driver IC
62 CLK O Clock signal output for FL driver IC
63 FL_STB O Latch signal output for FL driver IC
64 NC — Not used (Fixed at L)
65 POWER RELAY O Power relay driver control signal output
66 PROTECTOR O Protector detection signal output
67 HEADPHONE RELAY O Headphone relay driver control signal output
68 WOOFER RELAY O Sub woofer relay driver control signal output
69 REAR RELAY O Surround speaker relay driver control signal output
70 CENTER RELAY O Center speaker relay driver control signal output
71 PREOUT/FRONT RELAY O Speaker A relay driver control signal output
72 R1 RELAY O Bridgeable relay driver control output (STR-DE595 only)
73 TUNED I Tuned signal detection input
74 STEREO I Stereo signal detection input
75 MUTE O Tuner mute signal output
76 DO I Tuner serial data input
77 RSTX I Reset signal input
78 SLATCH O Tuner latch signal output
79 X0A — Not used (Open)
80 X1A — Not used (Connect to VSS)
81 VSS — Ground
82 X0 — Clock signal input (16 MHz)
83 X1 — Clock signal output (16 MHz)
84 VCC3 — Power supply pin (+3.3 V)
85, 86 NC — Not used (Fixed at L)
87 to 90 SW4 to SW1 O Video select signal output
91, 92 NC — Not used (Fixed at L)
93 XMODE O Xmode signal output for DIR IC
94 CKSEL1 O Clock select signal output for DIR IC
95 CLK O Data clock signal output for DIR IC
96 CE O Latch signal output for DIR IC
97 DI O Data output for DIR IC
98 DO I Data input from DIR IC
99 ERROR I Error detection signal input from DIR IC
100 XSTATE I Xstate signal input from DIR IC
Pin Description
15

4-2. CIRCUIT BOARDS LOCATION

STANDBY board
POWER board
HEADPHONE board
DISPLAY board
15
STR-DE495/DE595
BRIDGEABLE board
(STR-DE595 only)
VIDEO board
DIGITAL board
MAIN board
VOL board