Read Sharp 37GT-27H (serv.man16) Service Manual online
8
37GT-27H
VALUE
DESCRIPTION
ADDRESS
00
BEGINING OF HORIZONTAL
CLAMP PULSE.
48
1F
VOLTAGE TO CHANGE TO L-L'
SYSTEM
49
1F
VOLTAGE TO CHANGE TO L-L'
SYSTEM
4A
1A
VERTICAL SYNC DELAY FOR TXT.
4B
69
SLICER CONTROL TTX ->
NIBBLE_UP = /NIBBLE_DOWN
4C
F0
CHANNEL SEARCH SPEED [UHF]
4D
F0
CHANNEL SEARCH SPEED [VHL]
4E
F0
CHANNEL SEARCH SPEED [VHH]
4F
AA
HORIZONTAL SYNC DELAY
50
00
PASSWORD 1
st
DIGIT
51
00
PASSWORD 2
nd
DIGIT
52
00
PASSWORD 3
rd
DIGIT
53
00
PASSWORD 4
th
DIGIT
54
01
CHARACTER SET (LANGUAGE
TXT)
55
40
MAXIMUM TUNNING VOLTAGE
DECREASE DURING PROG.
CHANGE (IN CASE IT IS NOT
FOUND THE SYNCHRO)
56
VALUE
DESCRIPTION
ADDRESS
00
b0: HOTEL MODE: DEACTIVATE
THE TV PANEL FRONTAL KEY.
IT STARTS UP IN SCART
MODE
WHEN SSW SIGNAL IS GIVEN
b1: SPECIAL HOTEL MODE FOR
S.E.I.S. THE TIME CONSTANT
TO VCR MODE
b2: OPTION FOR DK_SYSTEM.
b3: AUTOINSTALL ON.
b4: COUNTRY SELECTION
MENU.
b5-b6: RGB DACs LEVEL.
b7: VPS_LOCK_SET
THE TV PANEL FRONTAL KEY.
IT STARTS UP IN SCART
MODE
WHEN SSW SIGNAL IS GIVEN
b1: SPECIAL HOTEL MODE FOR
S.E.I.S. THE TIME CONSTANT
TO VCR MODE
b2: OPTION FOR DK_SYSTEM.
b3: AUTOINSTALL ON.
b4: COUNTRY SELECTION
MENU.
b5-b6: RGB DACs LEVEL.
b7: VPS_LOCK_SET
57
0F
TIMING PACKET SEARCH, VPS.
58
20
VERTICAL SHIFT FOR 60HZ
59
BB
ONE STEP DOWN WHEN THE
FIRST SYNCHRO LOOSING IS
PRODUCED
5A
15
UP MAXIMUM STEP No DURING
SEARCHING (
).
5B
00
CORRECTION VALUE OF V-SHIFT
IN ORDER TO BE INDEPENDENT
TO V-AMP BAND OFFSET SPEED
DURING SEARCHING
5C
15
AUTOMATIC PEAK RGB
REGULATION: PIC REGULATOR
5D
D2
BAND OFFSET SPEED DURING
SEARCHING (
)
NIBBLE_UP=/ NIBBLE_DOWN
5E
00
FREE
5F
10
TIMING PACKET SEARCH, 8/30.
60
----
RESERVED
61
a
FF
PIF/AGC Adjustment
1. “AFT C” should not be adjusted. The value should be fixed to 0A.
2. “AFT F” Adjustment
2.1. Connect the output of SSG (Standard Signal Generator) to the tuner IF output terminal.
·SSG output 38.9 MHz (CW) ± 5 KHz.
·SSG output level: approx. 90 dB/uV.
2.2. Enter into Service Mode.
2.3. Select parameter AFT F.
2.4. Push «CALL» button on R/C, see Page 43. «AFT OK» will appear in On Screen Display (OSD).
2.5. Switch set OFF and ON again, setting is now memorized.
2.1. Connect the output of SSG (Standard Signal Generator) to the tuner IF output terminal.
·SSG output 38.9 MHz (CW) ± 5 KHz.
·SSG output level: approx. 90 dB/uV.
2.2. Enter into Service Mode.
2.3. Select parameter AFT F.
2.4. Push «CALL» button on R/C, see Page 43. «AFT OK» will appear in On Screen Display (OSD).
2.5. Switch set OFF and ON again, setting is now memorized.
3. RF-AGC Adjustment
3.1. Receive the “ COLOUR Bar” Signal (Channel E-10). Signal strength: 53dB/
3.1. Receive the “ COLOUR Bar” Signal (Channel E-10). Signal strength: 53dB/
µ
V.
3.2. Enter into Service Mode.
3.3. Select parameter AGC.
3.4. Push “CALL” button on R/C, see Page 43. “BUS STOP” will appear in OSD.
3.5. Push “GREEN” button on R/C (to exit Bus Stop Mode).
3.6. Switch set OFF and ON again, setting is now memorized.
3.3. Select parameter AGC.
3.4. Push “CALL” button on R/C, see Page 43. “BUS STOP” will appear in OSD.
3.5. Push “GREEN” button on R/C (to exit Bus Stop Mode).
3.6. Switch set OFF and ON again, setting is now memorized.
Click on the first or last page to see other 37GT-27H (serv.man16) service manuals if exist.