JVC RS-WP1WT Service Manual page 32

RS-WP1WT
AN8838SB(IC604) : RF & Servo AMP
1. Terminal layout
VCC 1
POA 2
POC 3
POB 4
POD 5
RFFB 6
RF 7
RF IN 8
LPD 9
LD 10
CSBRT 11
CEA 12
BDO 13
GND 14
3. Pin function
Pin No.
Symbol
VCC
1
2 POA
POC
3
4 POB
5 PO
RFFB
6
7 RF
RF IN
8
9 LPD
10 LD
CSBRT
11
12 CEA
13 BDO
14 GND
RFDET
15
16 PDOWN
OFTR
17
18 LDON
19 ENV
FEOUT
20
21 FEN
FBAL
22
23 TBAL
24 TEN
TEOUT
25
26 VREF
PDE
27
28 PDF
1-32
2. Block diagram
28 PDF
27 PDE
26 VREF
25 TEOUT
24 TEN
23 TBAL
22 FBAL
21 FEN
20 FEOUT
19 ENV
18 LDON
17 OFTR
16 PDOWN
15 RFDET
I/O
- Power supply
I Focus signal input A
I Focus signal input C
I Focus signal input B
I Focus signal input D
I RFamp input
O RFamp output
I RF input
I APC amp input terminal
O APC amp output terminal
I OFF Track External terminal
I/O A capacitor is connected to this terminal detect the envelope of RF
signal
O BDO output
- Connect to GND
I RF detect signal input
I Power down input
O OFF Track output
I APC ON/OFF control terminal
O Envelope output
O Output pin of focus error
I Focus error amp output
I Focus balance control
I Tracking balance control
O Tracking error output
O Tracking error signal output
O Reference voltage output
I I-V amp input
I I-V amp input
Descriptions