Panasonic SL-SV550GT, Service Manual

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Put a conductive mat on the work table.
Do not touch the legs of IC or LSI with the fingers directly.
9.1. Cautions in Repair exchange of the Diode (D1101, D1102)
- When it is repaired, exchange the parts of D1101, D1102 together.
- The service parts of Number (KV1450TL3-4) are supplied only.
10. Schematic Diagram
11. Printed Circuit Board and Wiring Connection
Diagram
12. Type Illustration of ICs, Transistors and Diodes
13. Block Diagram
14. Terminal Function of ICs
14.1. IC101(AN22003A-NF): / Servo Amplifier
Pin
No.
Terminal
Name
I/O Function
1 PD I APC amplifier input terminal
2 LD O APC amplifier output terminal
3
V
CC
I Power supply terminal
4 EQSW I EQ characteristic drive signal
input
5 RF OUT O RF addition amp output
6 RF IN I AGC signal input
7 CAGC - AGC loop filter capacitance
connect terminal
8 ARF O RF signal output
9 CEA - Capacitor for H.P.F. connected
terminal
10 3TOUT O RF envelope signal output
11 DC DET - Capacitor for H.P.F. connected
terminal
12 OFFCONT - Not used, open
13 BDO O Dropout signal output
14 OFTR O Off-track signal output
15 NRFDET O RF detection signal output
16 LDON=H I Laser ON signal input
17 GND - GND
18 PDOWN
/ =H
I Headamp power OFF signal
input
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