Description Of Major Ics - JVC XV-S40BK Service Manual

Description of major ICs

AN8702FH(IC101):Frontend processor
1.Pin layout
2.Pin function
Symbol I/O
Pin No.
1 PC1
2
PC01
3 PC2
4 PC02
I
5 Tangential phase balance control terminal
TGBAL
I
Tracking balance control terminal
6 TBAL
I
7 FBAL Focus balance control terminal
O
8 POFLT Track detection threshold level terminal
I
9 Data slice part data read signal input terminal
DTRD
(For RAM)
I
10 IDGT Data slice part address part gate signal input
terminal( For RAM)
I
11 Standby mode control terminal
STANDBY
I
SEN(Serial data input terminal)
12 SEN
I
13 SCK SCK(Serial data input terminal)
I
14 STDI STDI(Serial data input terminal)
15
RSEL
16 JLINE
17 TEN
O
18 Tracking error signal output terminal
TEOUT
19 ASN
20 ASOUT
I
21 FEN Focus error output amplifier reversing input terminal
O
22 Focus error signal output terminal
FEOUT
-
Connect to GND
23 VSS
O
24 TG Tangential phase error signal output terminal
-
25 VDD Power supply terminal 3V
-
26 Connect to GND
GND2
O
27 VREF2 VREF2 voltage output terminal
-
28 VCC2 Power supply terminal 5V
O
29 VHALF voltage output terminal
VHALF
30 DFLTON
31 DFLTOP
32 DSFLT
-
33 Connect to GND
GND3
PC1 1
PC01 2
PC2 3
PC02 4
TGBAL 5
TBAL 6
FBAL 7
AN8702FH
POFLT 8
DTRD 9
IDGT 10
STANDBY 11
SEN 12
SCK 13
STDI 14
RSEL 15
JLINE 16
Description
XV-S40BK/XV-S42SL/XV-S45GD/XV-S30BK
48 RFINN
47 RFINP
46 TESTSG
45 AGCO
44 AGCG
43 PEAK
42 BOTTOM
41 RFENV
40 BDO
39 OFTR
38 DCRF
37 RFC
36 VCC3
35 RFOUT
34 RFDIFO
33 GND3
Symbol I/O
Pin No.
34 RFDIFO
35 RFOUT
36 -
VCC3 Power supply terminal 5V
37 RFC
38 DCRF O All addition amplifier capacitor terminal
39 OFTR O
OFTR output terminal
40 BDO
O
41 RFENV RF envelope output terminal
42 BOTTOM O Bottom envelope detection filter terminal
43 PEAK O
Peak envelope detection filter terminal
O
44 AGCG AGC amplifier gain control terminal
45 AGCO
46 TESTSG I
TEST signal input terminal
47 I
RFINP RF signal positive input terminal
I
48 RFINN RF signal negative input terminal
49 VIN5 I Focus input of external division into two terminal
50 VIN6 I
Focus input of external division into two terminal
51 I
VIN7
I
52 VIN8
53 VIN9 I
54 VIN10 I
-
55 VCC1 Power supply terminal 5V
O
56 VREF1 VREF1 voltage output terminal
57 VIN1 I External division into four (DVD/CD) RF input
terminal1
I
58 VIN2 External division into four (DVD/CD) RF input
terminal2
59 VIN3 I
External division into four (DVD/CD) RF input
terminal3
I
60 VIN4 External division into four (DVD/CD) RF input
terminal4
61 GND1 -
Connect to GND
I
62 VIN11
I
63 VIN12
64 HDTYPE
Description
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