Pioneer X-HX5000 Service Manual page 38

X-HX5000, X-HX3000, X-HX2000
52192 (BH3854AS) (TUNER PCB ASSY : IC102)
• Main Control and TONE Control IC
•
Block Diagram
20kΩ
20kΩ
¶ Pin Function
No. Pin Name
1 A_GND Analog ground
2 IN1 1 ch volume input pin
3 NF1 Gain adjustment pin of input stage amp.
4 BVN1
5 BIN1 Pins for 1 ch low-pass filter connection
6 BVO1
7 TIN1
Pins for 1 ch high-pass filter connection
8 TVO1
9 OUT1 1 ch volume output pin
10 Vcc Power supply pin
Time constant install pin for change shock
11 SC
12 PORT1
13 PORT2
Port output pins
14 PORT3
15 PORT4
16 D_GND Digital ground
38
2kΩ
(BASS)
(TREBLE)
TONE
20kΩ
47kΩ
47kΩ
20kΩ
TONE
(TREBLE)
(BASS)
2kΩ
Function
10kΩ 10kΩ 10kΩ
CONTROL
200kΩ
No. Pin Name
17 VREF 3.8V reference voltage output pin
18 LATCH Latch data reception pin
19 DATA Data reception pin
20 CK Clock reception pin
21 BC
Time constant install pins for change shock
22 TC
protection
23 VC
24 OUT2 2 ch volume output pin
25 TVO2
2 ch high-pass filter connection pins
26 TIN2
27 BVO2
28 BIN2 2 ch low-pass filter connection pins
29 BVN2
30 NF2 Gain adjustment pin of input stage amp.
31 IN2 2 ch volume input pin
32 FILTER Filter pin
Function