Philips FWM390 - Set Block Diagram; Audio Frequency Board (AF9) Block Diagram

4-1 4-1
SET BLOCK DIAGRAM
CONTROL
ECO6
VOL. 2
I2C DATA
A
+LED
L/R SPEAKER
CD STANDBY
POWER_DOWN
D
D
2 X 6 OHMS
500mV
NJM4556AM
I2C DATA
MUTE
CONTROL
MUTE
AMP_ON
CD_PORE
TDA7468
I2C CLK
+12M
+9.1V
MAIN SIGNAL PATH
MEASUREMENTS ARE IN AUX MODE :
XX mV
YY dBA
ZZ dB
LEVELS AT MAX VOL
LEFT/RIGHT
L CHANNEL
I2C CLK
S/N AT 500mW
HEADROOM (1% THD) WRT TO LEVEL AT MAX VOL
-CMOS
+5V6
+12A
+12M +12A
2 X 100W
AM
A
DM
A
D
LEDS
F1
MAX
+LED
+5V6
KEY SCAN
MATRIX
SA1, SA2, SA3
+F
VOLUME
+F
SHIFT
REGISTER
I2C CLK
D
D
3CDC-L2C
ETF7
TAPE
CONTROL
TUNER
CONTROL
M62320FP
LEDS
+G
AF9
+12A
BIPLANER/
+5V6
LED STR
LED ENABLE
HEADPHONE
AMPLIFIER
Gv = 25dB
+9.1V
CDC
CONTROL
+CD
LOW_PWR_SUP
47R
MUTE HP DET
1.90V
HEADPHONE
2.50V
3.0dB
14 dB
F1x
-Vkk
-Vkk
-Vkk
MUTE
+12A
100mV
+F
I2C
CDC
-26 dB
+E
LED
AM (80% MOD)
FM (67.5 kHz)
650mV
CD SUPPLY
CONTROL
AF9
Rin = 3k
+F
AMPLIFIER
76dBA
16dB
LEDS
F2
-CMOS (-9V)
F2x
TAPE
CONTROL
+5V6
HP DET MIC DET
-Vkk
REG
+5V6
+9V
POWER
REG
I2C DATA
CONTROL
+5V6_CON
+5V6_CON
A
ATTN.
JOG
33R
+5V6_CON
REG
67dBA
1K
500mV
REGISTER
CDC
CONTROL
TUNER
28mV
+CD (+5V)
78dBA
3.2dB
+LED
LOW_PWR_CTRL
+5V
500mV
&
HP DET
+5V6
LED CLK
NTC
INCREDIBLE
EEPROM
F1x
TMP87CS71F
D
DSC/VEC/DBB
INTERFACE
3mV
uP
A
-CMOS
IR EYE
BASS
+12A
NOTE :
125mV
SIMPLE KARAOKE
MIC DET
SWITCH
CIRCUIT
SIS FILTER
500mV
76dBA
16dB
-
6dB TRACK
125mV
500mV / 1000mV
250nWb/m
SOFTWARE CONTROL
SOURCE SELECTOR
ATTN.
-8.5dB
+5V6
-Vkk
+5V6_CON
LED DATA
+VH+VL
POWER
ATTEN.
DECODER
250mV
STK-442
-Vkk
F2x
RDS
+G
A
+E
+E
ECO
POWER
SWITCH
ECO POWER
CONTROL
SHIFT
+F
REGISTER
I2C SHIFT
SA BUFFER
AUX / CDR
TREBLE
HP DET
CONTROL
FTD
SURROUND
VOL. 1
FRONT
-VH-VL
A
CLIPPING
85dBA
3dB
+
-
+
-
LOW_PWR_CTRL
10M
MAINS
CHOKE
A1
N
LOW_PWR_SUP
+5V6
VOLTAGE
SELECTOR
C1
STANDBY TRAFO
L
-Vkk
POWER SUPPLY
NTC
F1
F2
POWER_DOWN
B1
(ONLY FOR -/37)
(NOT USED FOR -/37)
(NOT USED IN -/21 & -/37)
+12V_D
+12V_A
TRAFO
LOW_PWR_CTRL
+5V6
B1
FOR -/21 ONLY
C1