Sony HCD-CQ1 Service Manual page 36

HCD-CQ1
Pin No. Pin Name
54 RESET
55 ST MUTE
56 STEREO
57 TUNED
58 LCD-ADJ
59 to 62 COM0 to COM3
63, 64 SEG0, SEG1
65 VCC
66 VSS
67 to 71 SEG2 to SEG6
72 NC
73 to 88 SEG7 to SEG22
89 DIMMER
90 VCC
91 VSS
92 XI
93 XO
94 STBY-RELAY
95 BACKLIGHT
96 AMP STANDBY
97 REC MUTE
98 AMP MUTE
99 LINE MUTE
100 MTR-CTRL2
36
I/O
I System reset signal input from the reset signal generator
O Tuner muting signal output
I FM stereo detection signal input
I Tuner tuned status signal input
— LCD_ADJ terminal
O Common signal output to the liquid crystal display
O Segment signal output to the liquid crystal display
— Power supply terminal
— Ground terminal
O Segment signal output to the liquid crystal display
— Not used
O Segment signal output to the liquid crystal display
O Dimmer signal output to the backlight control circuit
— Power supply terminal
— Ground terminal
I Resonator terminal (6MHz)
O Resonator terminal (6MHz)
O Main system power supply control signal output
O Backlight control signal output
O Standby signal output to the power amplifier
O Line out muting signal output
O Muting signal output to the power amplifier
O Pre-amplifier output muting control signal output
O Motor control signal output to the motor driver (IC251)
Description