DOWNLOAD Sharp 66GS-62 (serv.man9) Service Manual ↓ Size: 107.14 KB | Pages: 10 in PDF or view online for FREE

Model
66GS-62 (serv.man9)
Pages
10
Size
107.14 KB
Type
PDF
Document
Service Manual
Brand
Device
TV / CTR / Section 5 - IC additional information
File
66gs-62-sm9.pdf
Date

Sharp 66GS-62 (serv.man9) Service Manual ▷ View online

22
66GS-62H
Notes
1. Values of video and sound parameters can be decreased at V
P
= 4.75 V.
2. Condition: luminance range (4 steps) 0 to 80%.
3. The sound carrier frequencies (depending on TV standard) are attenuated by the integrated sound carrier traps
(see Figs 16 to 21;
H (s)
 is the absolute value of transfer function).
4. S/N is the ratio of black-to-white amplitude to the black level noise voltage (RMS value, pin 17). B = 5 MHz weighted
in accordance with
“CCIR 567”.
5. The intercarrier output signal at pin 12 can be calculated by the following formula taking into account the internal
video signal with 1.1 V (p-p) as a reference:
where:
= correction term for RMS value,
= sound-to-picture carrier ratio at VIF input (pins 1 and 2) in dB,
6 dB = correction term of internal circuitry and
±
3 dB = tolerance of video output and intercarrier output amplitude
V
o(intc)(rms)
.
6. The reference input pin 15 is able to operate as a 1-pin crystal oscillator as well as input terminal with external
reference signal, e.g. from the tuning system.
B
AF(
3dB)
3 dB audio frequency bandwidth for
FM
without de-emphasis;
dependent on loop filter at
pin 4
80
100
kHz
S/N
W(audio)
weighted signal-to-noise ratio of
audio signal
27 kHz FM deviation;
50
µ
s de-emphasis;
vision carrier unmodulated
52
56
dB
AM; m = 54%
45
50
dB
α
AM(sup)
AM suppression of FM demodulator
50
µ
s de-emphasis;
AM: f = 1 kHz; m = 0.54
referenced to 27 kHz
FM deviation
40
46
dB
PSRR
8(AM)
power supply ripple rejection at pin 8
f
ripple
= 70 Hz; see Fig.8
20
26
dB
PSRR
8(FM)
power supply ripple rejection at pin 8
f
ripple
= 70 Hz; see Fig.8
14
20
dB
V
o(rms)
IF intercarrier level (RMS value),
valid also for radio
QSS mode; SC
1
; sound
carrier 2 off
90
140
180
mV
L standard; without
modulation
90
140
180
mV
intercarrier mode; SC
1
;
sound carrier 2 off
note 5
mV
f
ref
frequency of reference signal at
pin 15
note 6
4
MHz
V
ref(rms)
amplitude of reference signal source
(RMS value)
operation as input terminal
80
400
mV
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
V
o(intc)(rms)
1.1 V (p-p)
1
2 2
-----------
×
10
V
i SC
(
)
V
i PC
(
)
--------------- dB
(
)
6 dB
3 dB
±
+
20
----------------------------------------------------------------
×
=
1
2 2
-----------
V
i SC
(
)
V
i PC
(
)
--------------- dB
(
)
ICs ADITIONAL INFORMATION: TDA9885 (IC201)
23
66GS-62H
BLOCK DIAGRAM
TAGC
C
VAGC pos
C
BL
VIF-PLL
4 MHz
external
AFC
video output 2 V (p-p)
[1.1 V (p-p) without trap]
AUD
C
AF
de-emphasis
network
FM-PLL filter
sound intercarrier output
C
AGC
AGND
V
P
VIF1
VIF-AGC
RC VCO
DIGITAL VCO CONTROL
AFC
DETECTOR
VIDEO TRAPS
4.5 to 6.5 MHz
NARROW-BAND FM-PLL
DETECTOR
I
2
C-BUS TRANSCEIVER
VIF-PLL
SINGLE REFERENCE QSS MIXER/
INTERCARRIER MIXER AND
AM-DEMODULATOR
SIF-AGC
SUPPLY
1
2
 14
 16
19
 15
 21
17
8
6
5
4
12
7
 11
 10
18
20
23
24
OUTPUT
PORTS
MAD
AUDIO PROCESSING
AND SWITCHES
9
TUNER AGC
C
AGC neg
3
22
crystal
and MAD select
TDA9885
n.c.
 13
OP1
OP2
SCL
SDA
DGND
SIOMAD
FMPLL
CVBS
TOP
VIF2
SIF1
SIF2
DEEM
AFD
REF
VAGC
VPLL
filter
(1)
(1)
Not connected for TDA9885.
reference
or
ICs ADITIONAL INFORMATION: TDA9885  (IC201)
24
66GS-62H
PINNING
SYMBOL
PIN
DESCRIPTION
VIF1
1
VIF differential input 1
VIF2
2
VIF differential input 2
OP1
3
output 1 (open-collector)
FMPLL
4
FM-PLL for loop filter
DEEM
5
de-emphasis output for capacitor
AFD
6
AF decoupling input for capacitor
DGND
7
digital ground
AUD
8
audio output
TOP
9
tuner AGC TakeOver Point (TOP)
SDA
10
I
2
C-bus data input/output
SCL
11
I
2
C-bus clock input
SIOMAD
12
sound intercarrier output and MAD
select
n.c.
13
not connected
Note
1. Not connected for TDA9885.
TAGC
14
tuner AGC output
REF
15
4 MHz crystal or reference input
VAGC
16
VIF-AGC for capacitor; note 1
CVBS
17
video output
AGND
18
analog ground
VPLL
19
VIF-PLL for loop filter
V
P
20
supply voltage (+5 V)
AFC
21
AFC output
OP2
22
output 2 (open-collector)
SIF1
23
SIF differential input 1
SIF2
24
SIF differential input 2
SYMBOL
PIN
DESCRIPTION
handbook, halfpage
TDA9885T
TDA9886T
MXXxxx
1
2
3
4
5
6
7
8
9
10
11
12
VIF1
VIF2
OP1
FMPLL
DEEM
AFD
DGND
AUD
TOP
SDA
SCL
SIOMAD
SIF2
SIF1
OP2
AFC
VP
VPLL
AGND
CVBS
VAGC
(1)
REF
TAGC
n.c.
24
23
22
21
20
19
18
17
16
15
14
13
Fig.2  Pin configuration for SO24.
(1) Not connected for TDA9885.
handbook, halfpage
TDA9885TS
TDA9886TS
MXXxxx
1
2
3
4
5
6
7
8
9
10
11
12
VIF1
VIF2
OP1
FMPLL
DEEM
AFD
DGND
AUD
TOP
SDA
SCL
SIOMAD
SIF2
SIF1
OP2
AFC
VP
VPLL
AGND
CVBS
VAGC
(1)
REF
TAGC
n.c.
24
23
22
21
20
19
18
17
16
15
14
13
Fig.3  Pin configuration for SSOP24.
(1) Not connected for TDA9885.
ICs ADITIONAL INFORMATION: TDA9885  (IC201)
25
66GS-62H
ICs ADITIONAL INFORMATION: TDA7480 (IC301, IC302, IC501)
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
V
CC
DC Supply Voltage
±
20
V
T
stg
, T
j
Storage and Junction Temperature
–40 to 150
°C
V
FREQ
Maximum Voltage Across VFREQ (Pin 9)
8
V
T
op
Operating Temperature Range
-20 to 70
°C
ESD
Maximum ESD on Pins
±
1.8
kV
THERMAL DATA
Symbol
Parameter
Value
Unit
R
th j-amb
Thermal Resistance Junction to ambient
80
°C/W
R
th j-pin
Thermal Resistance Junction to Pin                                                  Max.
12
°C/W
PIN FUNCTIONS
N.
Name
Function
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
-V
CC
-V
CC
-V
CC
OUT
BOOTDIODE
BOOT
NC
FEEDCAP
FREQUENCY
SGN-GND
IN
ST-BY-MUTE
NC
+V
CC 
SIGN
VREG
+V
CC
 POW
-V
CC
-V
CC
-V
CC
-V
CC
NEGATIVE SUPPLY.
NEGATIVE SUPPLY.
NEGATIVE SUPPLY.
PWM OUTPUT
BOOTSTRAP DIODE ANODE
BOOTSTRAP CAPACITOR
NOT CONNECTED
FEEDBACK INTEGRATING CAPACITANCE
SETTING FREQUENCY RESISTOR
SIGNAL GROUND
INPUT
ST-BY/ MUTE CONTROL PIN
NOT CONNECTED
POSITIVE SIGNAL SUPPLY
10V INTERNAL REGULATOR
POSITIVE POWER SUPPLY
NEGATIVE SUPPLY (TO BE CONNECTED TO PIN 16 VIA C5)
NEGATIVE SUPPLY
NEGATIVE SUPPLY
NEGATIVE SUPPLY
-V
CC
OUT
BOOTDIODE
N.C.
BOOT
FEEDCAP
FREQ
1
3
2
4
5
6
7
8
9
STBY/MUTE
N.C.
+V
CC SIGN
+V
CC POW
VREG
-V
CC 
-V
CC
20
19
18
17
16
14
15
13
12
D96AU537B
SGN-GND
10
IN
11
-V
CC
-V
CC
-V
CC
-V
CC
PIN CONNECTION (Top view)
0
4
8
12
Area(cm
2
)
30
40
50
60
R
thj-a
(˚C/W)
D97AU675
COPPER AREA 35
µ
THICKNESS
PC BOARD
Rth with "on board" Square Heatsink vs. cop-
per area.
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Sharp 66GS-62 (serv.man9) Service Manual ▷ Download

  • DOWNLOAD Sharp 66GS-62 (serv.man9) Service Manual ↓ Size: 107.14 KB | Pages: 10 in PDF or view online for FREE
  • Here you can View online or download the Service Manual for the Sharp 66GS-62 (serv.man9) in PDF for free, which will help you to disassemble, recover, fix and repair Sharp 66GS-62 (serv.man9) CTR. Information contained in Sharp 66GS-62 (serv.man9) Service Manual (repair manual) includes:
  • Disassembly, troubleshooting, maintenance, adjustment, installation and setup instructions.
  • Schematics, Circuit, Wiring and Block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Exploded View and Parts List.