reset-ceco
Front µP
→
CECO
Control line, resets the CECO after startup to enable simulation
of key combinations for service tests. Low level=reset
RotarySA
Key board left
→
Front µP
Control line A, rotary encoder “Source”
RotarySB
Key board left
→
Front µP
Control line B, rotary encoder “Source”
RotaryVA
Key board right
→
Front µP
Control line A, rotary encoder “Volume”
RotaryVB
Key board right
→
Front µP
Control line B, rotary encoder “Volume”
SCART_WAKEUP 7403 (“WU” on AV board)
→
Front µP (via ASP board)
provisional only
SDA_CECO
Front µP ´ 7804 CECO (via AV board)
I2C bus Serial Data, communication CECO - Front µP
SCL_CECO
7804 CECO
→
Front µP (via AV board)
I2C bus Serial Clock, communication CECO - Front µP
S_REF
ASP board junction 3643/3644
→
3612, 3635 (ASP board)
Reference voltage for buffer amplifier IC 7600
SET_FAN_CTRL
jct. 3516/3519/3520 (Front/Control)
→
7219 (Power second.) via
Control line, sum of SetFan2, controls speed of set fan
ASP board
SetFan1
Front µP
→
3519
Control line, forms with SetFan2 summary signal SET_FAN_CTRL
SetFan2
Front µP
→
3520
Control line, forms with SetFan1 summary signal SET_FAN_CTRL
STBY
-
Stand by
STBY_CTRL
CECO (“STBY”)
→
Front µP (via AV- and ASP board)
Control line, switches from active to passive standby mode.
High level=passive standby. 7414 serves as level shift from 3,3V-
to 5V logic. Not used by LX9000R front software.
SUR_ON
Front µP
→
_300__Power Amplifier board)
Control line, switches Surround amplifier on. High level=on
TEMP
3422
→
1302 (Power Amplifier board)
→
ASP board
Control line, sensor (NTC resistor) for temperature of the heat sink on
the Power Amplifier board. On ASP board short-circuited with “ERR”
to the combined control line “NTC_Amp”.
TU_CE
Front µP
→
Audio Tuner (via ASP board)
PLL serial data Chip Enable
TU_CLOCK
Front µP
→
Audio Tuner (via ASP board)
PLL serial data Clock
TU_DI
Front µP
→
Audio Tuner (via ASP board)
PLL serial data. Data In
TU_RDS
Audio Tuner
→
RDS decoder on Front/Control board (via ASP board)
Signal line, MPX signal for RDS decoder
TU_LEFT (RIGHT) Audio Tuner
→
ASP board 1606
Signal line, left (right) channel from Audio Tuner
TuRdsClk
RDS decoder IC 7407
→
Front µP
Clock RDS data
TuRdsData
RDS decoder IC 7407
→
Front µP
Decoded RDS data
TU_SD Audio
Tuner
→
Front µP (via ASP board)
Control line, Signal Detection. Low level=tuned
TU-stereo
Audio Tuner
→
Front µP (via ASP board)
PLL serial data. Data Out and control line for stereo indication.
Low level=stereo
XHIGHPASS_OFF
ASP board 7501
→
ASP board 3666
Control line, inverted HIGHPASS_OFF signal. Activates high-pass filter
for analog input signals, which are not processed by MDM board.
High level=high-pass on
(2528/2548 and 3562/3572 shift the lower cut-off-frequency to 100Hz
when transistors 7560/7570 conduct. 2560/2570 serve for DC decoupling
only). On the subwoofer output the low-pass is activated via 7655.
XLINE_L (R)
ASP board 7604
→
ASP board 2652 (2653)
Signal line, line out signal taken from 7604 (after pre-amp.) for input to
7654. As provision only, to reduce load for 7500.
XMUTE_ALL
ASP board 7514
→
ASP board 3620, 3670
Control line, inverse MUTE_ALL signal. High level=mute
EN 219
9.
LX9000R
Circuit-, IC descriptions and list of abbreviations
Содержание LX9000R/22
Страница 58: ...Diagnostic Software DVD EN 58 LX9000R 5 ...
Страница 101: ...EN 101 7 LX9000R Circuit Diagrams and PWB Layouts TR 06012_001 040203 F8008 F843 I818 uP Sub Board top view ...
Страница 108: ...EN 108 7 LX9000R Circuit Diagrams and PWB Layouts DVIO BOARD top view ...
Страница 109: ...EN 109 7 LX9000R Circuit Diagrams and PWB Layouts DVIO BOARD top view ...
Страница 110: ...EN 110 7 LX9000R Circuit Diagrams and PWB Layouts DVIO BOARD top view ...
Страница 111: ...EN 111 7 LX9000R Circuit Diagrams and PWB Layouts TEST POINTS OVERVIEW DVIO BOARD ...
Страница 122: ...EN 122 7 LX9000R Circuit Diagrams and PWB Layouts TR 06014a_001 180203 DIGITAL BOARD 1 5 top view ...
Страница 123: ...EN 123 7 LX9000R Circuit Diagrams and PWB Layouts DIGITAL BOARD 1 5 top view TR 06014b_001 120203 ...
Страница 125: ...EN 125 7 LX9000R Circuit Diagrams and PWB Layouts TR 06015a_001 250203 DIGITAL BOARD 1 5 bottom view ...
Страница 126: ...EN 126 7 LX9000R Circuit Diagrams and PWB Layouts TR 06015b_001 180203 DIGITAL BOARD 1 5 bottom view ...
Страница 137: ...Circuit IC descriptions and list of abbreviations EN 137 LX9000R 9 9 3 5 Video routing Figure 9 1 Video IO Europe ...
Страница 141: ...Circuit IC descriptions and list of abbreviations EN 141 LX9000R 9 9 4 4 Video routing Figure 9 3 Video IO Nafta ...
Страница 146: ...Circuit IC descriptions and list of abbreviations EN 146 LX9000R 9 9 6 2 Block Diagram Block Diagram DVIO1 8 Figure 9 7 ...
Страница 151: ...Circuit IC descriptions and list of abbreviations EN 151 LX9000R 9 Figure 9 11 ...
Страница 152: ...Circuit IC descriptions and list of abbreviations EN 152 LX9000R 9 Figure 9 12 ...
Страница 156: ...Circuit IC descriptions and list of abbreviations EN 156 LX9000R 9 IC7411 ...
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Страница 198: ...Circuit IC descriptions and list of abbreviations EN 198 LX9000R 9 IC7802 uPD78F0988A ...
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Страница 205: ...Circuit IC descriptions and list of abbreviations EN 205 LX9000R 9 IC7605 BU2288FV ...
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Страница 207: ...Circuit IC descriptions and list of abbreviations EN 207 LX9000R 9 IC7604 BA7082F ...
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