Sharp LC-22LE22E Service Manual ▷ View online
Receiving Channel (Digital, Center frequency):
VHF Low CH. E2 ~ S10 ( 50.5MHz ~ 170.5MHz )
VHF High CH. E5 ~ S41 ( 177.5MHz ~ 466 MHz )
UHF CH. E21 ~ E69 ( 474 MHz ~ 858 MHz )
VHF High CH. E5 ~ S41 ( 177.5MHz ~ 466 MHz )
UHF CH. E21 ~ E69 ( 474 MHz ~ 858 MHz )
Receiving Channel (PAL, Picture carrier frequency):
VHF Low CH. E2 ~ S10 ( 48.25MHz ~ 168.25MHz )
VHF High CH. E5 ~ S41 ( 175.25MHz ~ 463.25MHz )
UHF CH. E21 ~ E70 ( 471.25MHz ~ 863.25MHz )
VHF High CH. E5 ~ S41 ( 175.25MHz ~ 463.25MHz )
UHF CH. E21 ~ E70 ( 471.25MHz ~ 863.25MHz )
Intermediate Frequency:
Digital(center) DVB-T (36.167 MHz)
Digital(center) DVB-C (36.125 MHz)
Analog(picture) 38.9 MHz
Digital(center) DVB-C (36.125 MHz)
Analog(picture) 38.9 MHz
Input Impedance: 75Ω, Unbalanced
Band Change-Over System
PLL Control System
Tuning System
Electronic Tuning System With PLL
Internal(or External) RF AGC function
Built in wideband AGC detector with 6 programmable take-over points
1.3. Pinning:
Pin no.
Terminal
Name
Name
Pin Description
1
Ant Power
Active Antenna Power
2
B+
+5V, Supply Voltage (Preamplifier, DC/DC)
3
RF AGC
RF AGC (internal or external mode)
4
CL
I2C Serial Clock
5
DA
I2C Serial Clock
6
BP
+5V, Supply Voltage (RF Amp, PLL, IF Amp)
7
BT(T.P)
+33V, within DC/DC circuit
8
AS
I2C Address Selection of the PLL
9
IF AGC
Control voltage for the IF AGC
10
IF OUT +
Output 2 of the IF Amplifier
11
IF OUT -
Output 1 of the IF Amplifier
12
AIF Output
IF output of the Analog BroadBand
2. SAW FILTER – Audio – Epcos K9656M(Z101)
2.1. Standart
B/G
D/K
I
L/L’
2.2. Features
TV IF audio filter with two channels
Channel 1 (L’) with one pass band for sound carriers at 40,40 MHz (L’) and 39,75
MHz (L’- NICAM)
Channel 2 (B/G,D/K,L,I) with one pass band for sound carriers between 32,35 MHz
and 33,40 MHz
2.3. Pin configuration
1 Input
2 Switching input
3 Chip carrier - ground
4 Output
5 Output
2 Switching input
3 Chip carrier - ground
4 Output
5 Output
2.4. Frequency response
3. SAW FILTER – Video – Epcos K3958M(Z102)
3.1. Standart
B/G
D/K
I
L/L’
3.2. Features
TV IF filter with Nyquist slopes at 33.90 MHz and 38.90 MHz
Constant group delay
Pin configuration:
1 Input
2 Input - ground
3 Chip - carrier ground
4 Output
5 Output
2 Input - ground
3 Chip - carrier ground
4 Output
5 Output
3.3. Frequency response
4. AUDIO AMPLIFIER STAGE WITH AZAD2102(U163, U164)
4.1. General Description
17MB60 uses two 2,5W Class D Mono Audio Amplifers for from 16” to 24” TVs.
AZAD2102B is a 2.9 Watts (max. can offer 3.0 Watts @ Load = 3Ω,THD=10%,
AVdd=DVdd=5.5Volt)with high efficiency filter-free class-D audio power amplifier in a
1613 mm x 1613 mm wafer chip scale package (WCSP). AZAD2102B uses Current-
switch technology to achieve high performance class-d amplifier that features 0.03%
THD, 85% efficiency, –70 dB PSRR, to improve RF-rectification immunity.
AZAD2102B is a 2.9 Watts (max. can offer 3.0 Watts @ Load = 3Ω,THD=10%,
AVdd=DVdd=5.5Volt)with high efficiency filter-free class-D audio power amplifier in a
1613 mm x 1613 mm wafer chip scale package (WCSP). AZAD2102B uses Current-
switch technology to achieve high performance class-d amplifier that features 0.03%
THD, 85% efficiency, –70 dB PSRR, to improve RF-rectification immunity.
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