General Information; Parts - Pioneer XC-IS21T Service Manual

7. GENERAL INFORMATION

7.1 PARTS

7.1.1 IC
• The information shown in the list is basic information and may not correspond exactly to that shown in the schematic diagrams.
CXA1821M (CD ASSY : IC1101)
• RF AMP. IC
•
Block Diagram
20 19
V
CC
V
CC
1 2
•
Pin Function
No. Pin Name I/O
1 LD O APC amplifier output
2 PD I APC amplifier input
3 A
4 B
I RF amplifier and FE amplifier input
5 C
6 D
−
7 VEE Ground pin
8 F
I Tracking error amplifier input.
9 E
Gain adjust the signal which was input from
−
10 EI
pin 9.
18 17 16
22k
VC
VREF
1.25V
VC
10k
3 4 5
Function
15 14 13
164k
123k
87k
VC
25p
VC
13k
V
EE
VC
6 7 8
No. Pin Name I/O
Gain adjust the signal which was input from
−
11 EO
pin 9.
12 VC O DC voltage output of (VCC+VEE)/2
O Tracking error amplifier output
13 TE
F-E signal is output.
14 FE BIAS I Pin for focus bias adjustment
15 FE O Focus error amplifier output
16 RFO O RF amplifier output
−
17 RFE Pin for RF amplifier equalization
18 LC/PD I Bias pin VCC : LC , OPEN : PDIC
ON/OFF switching pin of APC amplifier
19 LD ON I
VCC : ON, VEE : OFF
−
20 VCC Power supply pin
XC-IS21T
12 11
VC
30k 30k
VC
9 10
Function
57