Abbreviations and acronyms
set related
Name
Direction
Description
- 12V_A
7206
→
- 12V supply derived from - A supply
- 5V
7208
→
- 5V supply switched by +12V_M supply
- 5V_STBY
7205
→
- 5V supply also available in Standby mode
- A
7211
→
Power Amplifier board
Negative power supply for power amplifiers
+12V_A
7202
→
+12V supply
+12V_AM
7212
→
Key board left (via ASP- and Control board)
+12V supply for set fan, display motor and backlight of rotary encoders
+12V_M
7212
→
AV board
Sw12V supply, switched by INV_ON from CECO
+12V_OCD
7222
→
3260
Control line, Overcurrent protection for +12V_A, activates
power off via Overvoltage protection and NTC_trafo line
+12V_STBY
7200
→
+12V supply also available in Standby mode
+20V_IN
6211
→
7204
Supply for 7204 (SMPS IC) which de3V3 with
high current capability
+3V3
7204
→
+3,3V supply created by a Switched Mode Power Supply IC
to enable high output current
+4V4
6217
→
+4,4V supply derived from +5V supply
+5V
7213
→
+5V supply switched by +12V_M supply
+5V_A
7203
→
+5V supply
+5V_STBY
7201
→
+5V supply also available in Standby mode
+9V2
7521 (ASP board)
→
7500, 7604, 7654 (ASP board)
Supply voltage for sound processor ICs
+33V_STBY
7281
→
AV board (via Power second.- and ASP board)
+33V supply also available in Standby mode
+A
7210
→
Power amplifier board
Positive power supply for power amplifiers
+C_OPAMP
3640 (ASP board)
→
7600, 7650 (ASP board)
Supply voltage for buffer amplifier ICs 7600 and 7650
+FET
3211
→
7210
Bias voltage for FET 7210
+HP
3555 (ASP board)
→
7502 (ASP board)
Supply voltage for buffer amplifier IC7502
9V_TUNER
7520 (ASP board)
→
Audio Tuner
+9V supply for Audio Tuner
AF_I2C_SCL1
Front µP
→
ASP board 7500
I2C bus Serial Clock to sound processor IC 7500
AF_I2C_SCL2
Front µP
→
ASP board 7654
I2C bus Serial Clock to sound processor IC 7654
AF_I2C_SCL3
Front µP
→
ASP board 7604
I2C bus Serial Clock to sound processor IC 7604
AF_I2C_SDA
Front µP ´ ASP board 7500, 7604, 7654
I2C bus Serial Data to sound processor ICs
AF_MUX1
Front µP
→
Auxiliary board (via ASP board)
Control line for Source Selector IC 7901 (multiplexer)
AF_MUX2
Front µP
→
Auxiliary board (via ASP board)
Control line for Source Selector IC 7901 (multiplexer)
AMP_CENTRE
ASP board 2667
→
1302 (Power Amplifier board)
Signal line, AF signal for center loudspeaker (amplifier)
AMP_LEFT/RIGHT ASP board 3567/3577
→
1302 (Power Amplifier board)
Signal line, left/right AF signal for front loudspeaker (amplifier)
AMP_SL (SR)
ASP board 2627 (2647)
→
1303 (Power Amplifier board)
Signal line, left/right AF signal for surround loudspeaker (amplifier)
AMP_SUB
ASP board 2687
→
1303 (Power Amplifier board)
Signal line, AF signal for sub-woofer (amplifier)
BL_DISP
3505 (Front/Control)
→
Display
Connection line, switches backlight of the display
BL_DISPLAY_HI
Front µP
→
3438
Control line, switches Display backlight bright
BL_DISPLAY_LO Front µP
→
3437
Control line, switches Display backlight to low intensity
BL_ROT_S
3402 (Front/Control)
→
6404 (Key board left via Key board right)
Connection line, switches backlight rotary encoder “Source”.
BL_ROT_S_HI
Front µP
→
3407
Control line, switches backlight rotary encoder “Source” bright
BL_ROT_S_LO
Front µP
→
3408
Control line, switches backlight rotary encoder “Source” to
low intensity
BL_ROT_V
3411 (Front/Control)
→
6402 (Key board right)
Connection line, switches backlight rotary encoder “Volume”.
BL_ROT_V_HI
Front µP
→
3403
Control line, switches backlight rotary encoder “Volume” bright
BL_ROT_V_LO
Front µP
→
3412
Control line, switches backlight rotary encoder “Volume” to
low intensity
C_REF
ASP board junction 3641/3642
→
3665, 3685 (ASP board)
Reference voltage for buffer amplifier IC 7650
CECO
-
CEntral COntroller
CECO_RST
Front µP
→
CECO
Control line, resets the CECO after startup to enable simulation
of key combinations for service tests. Low level=reset
7416 serves as inverter.
CLK
-
Clock
DI_I2C_SDA
Front µP
→
Display and EEPROM 7408
I2C bus Serial Data, communication to display driver and EEPROM 7408
DI_I2C_CLK
Front µP
→
Display and EEPROM 7408
I2C bus Serial Clock, communication to display driver and
EEPROM 7408
DOWNMIX_L (R)
MDM board 1803
→
1603 (ASP board)
Signal line, digital multi-channel signal converted to stereo Left/Right
DVD_FAN_CTRL junction 3515/3517/3518 (Front/Control)
→
7610 (DVD Fan Control on Control line, sum of DvdFan2, controls speed of the fan
ASP board)
for the Basic Engine. Prepared for AV3 DVD module only.
DvdFan1
Front µP
→
3517
Control line, forms with DvdFan2 summary signal DVD_FAN_CTRL
DvdFan2
Front µP
→
3518
Control line, forms with DvdFan1 summary signal DVD_FAN_CTRL
ERR
7710
→
1302 (Power Amplifier board)
→
ASP board
Control line, error signal for detection of DC on one of the amplifier
outputs. Low level=error. On ASP board short circuited with “TEMP”
to the combined control line “NTC_Amp”.
FREQU_HOP
Front µP
→
2606__Clock generator on Power Amplifier board)
Control line, shifts the “tact frequency” of the power amp. to avoid
radio interferences during AM reception. High level=on
7412 serves as impedance converter.
GND
-
Ground connection. Added letters indicate different common GND
EN 217
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 ...
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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 ...
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