Ics Functional Description - Insignia IS-TVDVD20A Service Manual

7. OP7
Bit Function
Bit 7 FMWS
Bit 6 HOTEL
Bit 5 PROG_ID
Bit 4 LED
Bit 3 TWIST
Bit 2 BYELORUSSIAN
Bit 1 UKRANIAN
Bit 0 AV1
8. OP8
Bit Function
Bit 6 DIRECT_SWITCH_ON
Bit 5 INNER_DVD
Bit 4 PROG_FREQ
Bit 3 FAST_BAR
Bit 2 AUSTRALIA
Bit 1 FREQ
Bit 0 9860
Note：Don't adjust any OPTION items, please inform the engineer about any change.

5. ICs functional description

1. N201 UOC TDA8377
SYMBOL
STAND BY output.
SCL
SDA
TUNING
KEY
SYSTEM
VOL
MUTE
VSSC/P
CTL
STANDBY
VSSA
SECPLL
VP2
DECDIG
PH2LF
PH1LF
GND3
DECBG
AVL/EWD
VDRB
VDRA
IFIN1
IFIN2
Description
1=Enable
1=Enable
1=Enable
1=Enable
1=Enable
1=Enable
1=Enable
1=Enable
Description
1=Enable
1=Enable
1=Enable
1=Enable
1=Enable
1=Enable
1=Enable
PIN
1 In STAND BY mode, low level (Power OFF).
For Power ON this pin will be high.
2
2 I C-bus clock line
2
3 I C-bus data line
4 tuning Voltage (Vt) PWM output
5 Control keys input
6 TV system control
7 Sound Volume control PWM output
8 Sound mute output
Digit ground for μ-controller core and periphery
9
10 DVD power control
11 STANDBY control
12 Analog ground of digital ground of TV-processor
13 Internally connected
nd
14 2 supply voltage TV-processor(+8V)
15 decoupling digital supply of TV-processor
16 Phase-2 filter
17 Phase-1 filter
18 Ground 3 for TV-processor
19 Band gap decoupling
20 Automatic volume levelling
21 Vertical drive B output
22 Vertical drive A output
23 IF input 1
24 IF input 2
DESCRIPTION
8
Preset Remark
1 EA
0 EA
0 EA
0 EA
0 EA
0 EA
0 EA
1 EA
Preset Remark
0 EA
1 EA
0 EA
1 EA
0 EA
1 EA
0 EA