Pioneer VSX-108 Manuale di servizio - Pagina 27
Sfoglia online o scarica il pdf Manuale di servizio per Ricevitore Pioneer VSX-108. Pioneer VSX-108 39. Audio multi - channel receiver
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- 1. Table of Contents
- 2. Safety Information
- 3. Exploded Views and Parts List
- 4. Block Diagram and Schematic Diagram
- 5. Pcb Connection Diagram
- 6. Main Pcb
- 7. Pcb Parts List
- 8. Adjustment
- 9. General Information
- 10. Parts
- 11. Block Diagram
- 12. Display
- 13. Panel Facilities and Specifications
- 14. Specifications
Pin Function
No.
1
FM IF input
2
AM MIX output
3
FM IF input by-pass
4
AM IF input
5
GND
6
TU-LED
7
ST-LED and AM IF output
8
Power supply pin
9
FM detector
10
Connection pin of AM narrow Band-pass C.F
11
FM S-meter output
12
AM S-meter output and AM SD sensitivity adjustment
13
AM/FM IF buffer output and output control SW (mute SW)
14
Phase comparator Low-pass filter (Switch the FM/AM)
Pilot detector Low-pass filter (Forced monoral)(VCO stop)
15
00206458-040 (LA6458S) (MAIN PCB : IC202, IC208)
• Dual Operational Amplifier IC
Block Diagram
1
V
CC
Function
2
3
4
V
V
V
OUT1
IN1
IN1
No.
16
17
Host amp. input/output
18
19
20
MPX output
21
22
MPX input
23
FM demodulation output
24
AM detection output
25
AM AGC
26
AFC
27
AM RF input
28
REG
29
OSC
30
OSC buffer output and FM SD sensitivity adjustment
5
6
7
V
V
V
EE
IN2
IN2
VSX-108
Function
8
9
V
V
OUT2
CC
27