Pioneer X-HX5000 Service Manual page 39

52103 (AN8806SB) (CD PCB ASSY : IC400)
• Digital Servo Head Amplifier IC
•
Block Diagram
36
A+C
B+D 35
31
PDFR
34
F
32
PDER
E 33
•
Pin Function
No. Pin Name
1 PD APC Amp input
2 LD APC Amp output
3 LD ON/OFF APC ON/OFF control
4 LDP APC reference voltage setting
5 Vcc Power supply pin
6 RF- RF Amp inverting input
7 RFOUT RF Amp output
8 RFIN AGC input
9 CAGC AGC loop filter connection pin
10 ARF AGC output
11 CENV Capacitor connection pin for RF detection
12 CEA Capacitor connection pin for HPF-Amp
Capacitor connection pin for RF dark side envelope
13 CSBDO
14 BDO BDO output
Capacitor connection pin for RF light side envelope
15 CSHRT
16 OFTR OFTR output
17 RFDET RFDET output
18 GND Ground
RF- RFOUT FBAL
6 7 29
FEOUT
FEOUT
FEOUT
TEOUT
TEOUT
FEOUT
SUBTRACTION
30 24
TBAL CROSS
Function
X-HX5000, X-HX3000, X-HX2000
FEOUT FE- RFIN CAGC ARF RFDET
27 28 8 9 10
EQ AGC
by IA+C
by IB+D
by FBAL
by IF
by IE
by TBAL
25 26 23
TEOUT TE- TEBPF
No. Pin Name
19 ENV 3TENV output
20 VREF VREF output
21 LD OFF APC OFF control
22 VDET VDET output
23 TEBPF VDET input
24 CROSS CROSS output
25 TEOUT TE. Amp output
26 TE- TE. Amp inverting input
27 FEOUT FE. Amp output
28 FE- FE. Amp inverting input
29 FBAL F. BAL control
30 TBAL T. BAL control
31 PDFR
I-V Amp conversion resistor adjustment
32 PDER
33 E
34 F
I-V Amp input
35
B+D
36
A+C
CENV CEA ENV
17 11 12 19
ENV
DETECTION
RF
BDO
DETEC-
TION
OFTR
22 1 4 3
VDET PD LDP LD ON/OFF
Function
CSBDO
13
14 BDO
15 CSHRT
OFTR
16
5 Vcc
18
GND
20
VREF
21 LD OFF
2 LD
39