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Block Diagram Audio - Philips FM242 Service Manual

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Block Diagrams, Testpoint Overviews, and Wiring Diagram

Block Diagram Audio

AUDIO
AUDIO SOURCE
SC13
7714
SELECT
LM833D
F710
L4
+8V6
2
1
L
AUDIO
5798
F711
VGA IN
R4
7798
6
7
TEA6422D
R
3
28
7734
LM833D
ERR
1
L5
2
1
L1
27
4
L
AUDIO
L2
F713
5
FLEX
R5
A
VGA
6
7
L3
R
6
L4
F714
9
12
B
MATRIX
L5
10
SWITCH
7754
LM833D
L6
11
L6
2
1
L
AUDIO
R1
25
R6
DVI-D
6
7
R2
24
R
R3
23
L2
R4
L
AV1
20
13
R2
AUDIO
R5
19
CVBS
R
R6
18
L3
L
AV2
R3
AUDIO
YC
R
L1
AV3
L
AUDIO
R1
RGB
YPbPr
R
YCbPr
7800 A+B
74HC4053D
A
SC1-L
2
15
B
SC1-R
12
14
10,11
ANTI PLOP
7805
7807
7806
7808
7718
7803
D-CTR-NIL
+9V-STBY
7801
7802
POWER-OK
SC8
AUDIO-ENABLE
D-CTR-ONE
SC14
CONTROL
CONTROL
SC6
RS232 INPUT
SC8
FUNCTIONS 2
SEE
0376
BLOCK DIAGRAM
VIDEO
1
RXD
2
TXD
RS-232
3
IN/OUT
RL_ICN
7555
4
5
74HC4053D
10
LD_ICN
4
2
5
9
1
3
GL_ICN
8
6
2
7
LD_ICN
1
6
7
GL_ICN
12
IR_TX
13
8
IR_RX
9
RL_ICN
5
10
3
11
ICON_NOT
SC7
7550
74HC4053D
IR_TX
2
1
LED
LD
6103
0320
0320
PANEL
1
2
1
1
7103
IR_RX
12
N.C.
GREEN
13
GREEN-LED
2
2
4
3
RED-LED
3
3
ICON_NOT
RED
SC7
7105
RC-IN
4
4
7107
RC
LIGHT-SENSOR-IN
5
5
RECEIVER
6
6
7120
+8V6
+8V6
2
7
7
7
6127
8
8
+5V-STBY-SW
+5V-STBY-SW
1101
+9V-STBY-SW
9
9
4
1
+9V-STBY-SW
ON/OFF
5
2
+9V-STBY
10
10
SWITCH
+9V-STBY
6
3
FM242 AA
AUDIO-PROCESSOR
SC14
SDA-AUDIO
4810
SCL-AUDIO
4811
7812
MSP3415G
3813
13
3
ERR
3
3795
12
SDA-AUDIO
2
DEMO-
2
DULATOR
3812
6
SCL-AUDIO
3794
I2S-
DATA-IN1
17
I2S-DATA-OUT
16
PRE-
21
SCALE
A
I2S-CLOCK
14
I2S-
DATA-IN2
B
3
PRE-OUT1-L
40
I660
DACM-L
27
DAC
DAC
DACM-R
26
6
DSP
I659
DIGITAL
DAC
SOUND
8
PROC.
9
PRE-OUT1-R
41
2
L
31
DAC
R
30
6
5
18.432 MHz
VXCA
SC9
6
SC15
AUDIO DELAY PROC.
AUDIO
B
A
DELAY LINE
7879
7874
7870
7880
TC74HC590AF
TC74HC590AF
TC74HC590AF
CY7C199B
F872
7x
8x
7x
COUNTER
COUNTER
RAM
7x
SC7
CONTROL FUNCTIONS 1
7383
SAA5801H
16
1415
6MHz
17
OTC-H
83
VGA1-H
SC6
7432
OTC
ERR
OTC-V
84
VGA1-V
SC6
ERR
7433
7517
RESET
74
ERR
ADM 810
RESET
2
SC7
ERR
RESET
SC10
109
PW_FLASH_RESET
ERR
120
SC8
ICONN_NOT
119
ERR
SC8
STANDBY
GREEN_LED
15
95
SC10
PW-START
ERR
96
SC13
SC8
POWER-OK
116
CPU-GO
14
115
SC12
PDP-GO
93
IRQ-PDP
4
RED_LED
110
SC6
RC-CNTL
108
SC10
PW-RESET
95
SC10
PW-START
104
SC8
FAN-SP2
103
SC8
FAN-SP1
99
SC6
UART-ACT
15
RC
98
SC6
SYNC-ACT
14
GND-LED
114
RED-LED
113
RC
100
RC
LIGHT-SEN-IN
105
SERVICE PINS
SC6
0382
SERVICE-IN
3419
1
SDM
2
106
SEE
BLOCK DIAGRAM
3380-C
3422
3
SAM
4
VIDEO
3421
5
CMP
6
7
8
SCL-1
SC7
9
10
+5V
SDA-1
6.
20
A2
FILTERS
SDA-1
SC7
SCL-1
7841
LM833D
3207
0388
0388
1
8
8
7225
F812
LM833DT
L-POS
L-POS
7
7
3
7
3220
1
L-NEG
L-NEG
6
6
2
F813
5
5
7851
AUDIO-ENABLE
LM833D
SC13
AUDIO-ENABLE
4
4
1
3
3
R-POS
2
2
R-POS
5
3240
F816
7
7
R-NEG
1
1
L-NEG
6
F817
3222
D-CTR-ONE
D-CTR-NIL
7211
F211
7861
BC857BM
+9V-STBY A
TS462CD
1
SC1-L
7
SC1-R
7881
7882
74HCT573
74HCT573
I2S-DATA-IN1
4884
24 ms MONITOR
17
8x
"D" F.F.
"D" F.F.
I2S-DATA-IN2
4894
15
40 ms TV
8x
F383
82
FRAME
F427
3404-C
86
SDA-1
F428
SEE
3404-D
85
IIC DIAGRAM
SCL-1
F425
3404-A
88
91
SDA-2
F426
SC10
3404-B
87
92
SCL-2
3402-D
89
93
RXD-OTC
SC6
3402-C
90
94
TXD-OTC
7430
MC24C32
95
3402-B
91
SDA-NVM-1
5
3402-A
96
92
SCL-NVM-1
6
NVM
ERR
97
RESET
7
7
SC7
7510 - 74 LVCOOAD
3464-D
43
ROM-CS
1
CS
6
42
RAM-CS
2
3464-C
3464-A
40
ROM-OE
9
OE
11
41
RAM-OE
10
3464-B
7506
AM29DL164DT
CS
26
OE
DATA
28
DUAL
BANK
ADDRESS
FLASH
7515,7516
ROM
CONTROL
12
FLASH
RESET
7500
MSM51V18165F
DATA
ADDRESS
DRAM
CONTROL
SC6
RS_232_ACT
7435
AUDIO
A3
3315
AMPL-
VCC-10-POS
L-HIGH
7260-A
7330
LM833DT
7315
8
3
L-HIGH
F258
LM311D
1
2
3328
2
7
F330
3
F328
3259
1,4
7302
7355
3318
F231
VCC-10-NEG
AUDIO
7238-A
A4
3415
AMPL-
LM833DT
F241
VCC-10-POS
F235
3
L-LOW
L-LOW
1
7430
7415
2
LM311D
8
2
3428
7
3234
F430
3
F428
1,4
7402
AU-EN-NOT
7455
3418
VCC-10-NEG
7260-B
LM833DT
F273
5
R-HIGH
A5
AUDIO
7
3515
AMPL-
6
VCC-10-POS
R-HIGH
7530
7515
3274
8
LM311D
2
3528
7
F530
3
F528
1,4
7502
7555
3518
VCC-10-NEG
7238-B
LM833DT
F245
5
L-HIGH
7
6
A6
AUDIO
3615
AMPL-
VCC-10-POS
3244
R-LOW
7630
7615
LM311D
8
2
3628
7
F630
3
F628
1,4
7602
7655
3618
VCC-10-NEG
SUPPLY & DC PROTECTION
A7
OUT_LH
OUT_LL
OUT_RH
OUT_RL
VCC_10_POS
A3
3755
OUT_PROT
3749
A4
A5
0302
3765
A6
9
DC-PROT
VCC_10_NEG
8
+9V-STBY
2760
7
TO
F730
1730
0302
6
VSDN-POS
P6
2.5A
5
POWER
7735,7736
SUPPLY
STAB
VCC-10-POS
4
F735
3
F740
1740
2
VSDN-NEG
2.5A
1
F745
7745,7746
VCC-10 -NEG
STAB
3330
5335
7365-2
VSDN-POS
IRF7343
D
2330
3337
G
5365
S
OUT_LH
F365
D
2355
3362
2355
G
S
7365-1
IRF7343
3355
5366
VSDN-NEG
7340
OUT_PROT
A7
3430
5435
7465-2
VSDN-POS
IRF7343
D
2430
3437
G
S
5465
OUT_LL
F465
D
2455
3462
2465
G
S
7465-1
IRF7343
3455
5460
VSDN-NEG
7440
OUT_PROT
A7
3530
5535
7565-2
VSDN-POS
IRF7343
D
2530
3537
G
5565
OUT_RH
S
F565
D
2555
3552
2565
G
S
7565-1
IRF7343
3555
5560
VSDN-NEG
7540
OUT_PROT
A7
3630
5335
7665-2
VSDN-POS
IRF7345
D
2630
3637
G
OUT_RL
S
5665
F665
D
2655
3662
2665
G
S
7665-1
IRF7345
3655
5660
VSDN-NEG
7640
OUT_PROT
A7
0303
5
L-HIGH
4
3
2
1
L-LOW
0304
R-HIGH
4
3
2
1
R-LOW
3770
3771
3780
3781
DC-PROTECT
7753
BC857BW
5753
+9V-STBY
3752
+9V-STBY A
3751
7751
6750
2759
6760
7761
7755
DC-PROT
CL 26532038_002.eps
150402

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