Philips MCW770 Service Manual page 61

1201 F14 1307-D F15 2205 B14 2212 D10 2218 G9 2226 F1
1211 E14 2109 G12 2206 B11 2213 G10 2219 E13 2227 H6
1212 E14 2200 A10 2208 D2 2214 D9 2220 F10 2229 G10
1307-A E15 2201 A9 2209 D12 2215 E13 2221 F2 2234 E13
1307-B E15 2202 A10 2210 D7 2216 E11 2222 F3 2236 G8
1307-C E15 2203 A9 2211 G9 2217 C1 2225 G9 2237 G3
1 2 3
5 COMBI BOARD
AMPLIFIER /
RIGHT CHANNEL
* VARIANT-TABLE
A
67781 67841/67941
POS.NR 150W 75W SA / 75W TAPE SA stands fror Sound Agent
2201 220u
2241 330u
2221 4n7 1n5
220u
2225
330u
2242
2237 470p 1n
3202 10R 1R
3205 0R033 0R047
B
3215 100R 4R7
10K
3228 15K
3212 4K7 4K7
3231 4K7 4K7
3243 0R033 0R047
3247 100R 4R7
3251 470R
560R
3252 1K2 1K5
3265 1K8 1K5
C
3266 1K8 1K5
3269 10R 1R0
5201 30u
5204 20u
PHX18NQ11T STP14NF12FP
7218
7231 PHX18NQ11T STP14NF12FP
7244 BC817-25
Amplifier ON-OFF Switch
7245 BC817-25
7232-6
D
74HCU04D
2208 3210
13 12
1
AMP_D
E
0V 4.2V
10n 4K7
4
3217
SC_R
from 7208 100K
Modulator
E
+5V_AMP
B C
7232-1
74HCU04D
3
14
3251
1 1 2
F RNF
A
2.1V 1.9V
470R
7
2221 D E
4n7
7232-2
74HCU04D
GND_SHIELD
3 1 4 5
B
2.1V 2.1V
7
G
2237
GND_SHIELD
470p
ROZ
3
H OSCILLATOR
1 2 3
11-9
2238 H8 3113 G12 3215 C9 3223 C13
3207 B13
0 2239 D7 3116 G13 3209 B10 3216 C11 3224 C12
2240 D6 0 3201 B1 3210 D3 3217 D3 3225 C6
2241 A1 0 3202 B8 3211 F4 3218 D4 3226 D12
2242 G1 0 3203 B14 3212 F9 3219 C13 3227 D5
3112 G12 3205 B10 3213 G3 3221 G5 3228 C8
4 5 6
Driver Stage + Levelshifter
7209
74LV14D
VCC
1A
1
2A
3
3A
5
3
4A
+46V
9
5A
-39V
11
6A
13
GND
G2
7232-5
74HCU04D 0.5V
6214
3218
11 10 7239
1 0V
BAS316
BC856B
F
0V
4K7 3267
F201
-41,7V 1K0
7228
MMBTA42
0V 7240 G1
2222
7235
BC856B
74LV14D
-36V
1u0 F
0.4V
-43V 1
7232-3 7232-4
3
74HCU04D 74HCU04D
14
5
3255
1 6 9 1 8
-42,2V
C D
2.1V 9
1K0
7
-41,7V
7238
11
BC846B
13
-42,3V
4 5 6
3229 D13 3241 F10 3251 F1 3258 F1 3265 C8 5201 E11
3231 F9 3243 F10 3252 G3 3259 F2 3266 C9 5202 E12
3232 F8 3245 E7 3253 H7 3261 E7 3267 D7 5203 G10
3236 D10 3246 E6 3254 F2 3262 G14 3268 E7 5204 D11
3237 E11 3247 E9 3255 G5 3263 G13 3269 E8 5205 C11
3240 E12 3248 E7 3256 G6 3264 C9 5200 A10 6104 G12
7 8 9
Power Stage
+43V
*
*
GND_SHIELD
GND_SHIELD
+50V
-40V
Supply 7244
BC817-25W
High-Side Driver
3202
14
H2
3215
10R
1Y
2
7222
100R
2Y
4 BC817-25W
3Y
6
+V1L 7221
4Y
8
BC807-25W
5Y
10
6Y
12
7
-V1L 1.2V
3248
3268
4K7
4K7
7245
BC817-25W
H1
-35V
3247
3269
-40V
10R 100R
7210
GND_SHIELD BC807-25W
+VL
14
7223
VCC
1A BC817-25W
1Y
2
2A
2Y
4
3A
3Y
6
4A
4Y
8
5A
5Y
10
6A 6Y
12
Supply
GND
7
Low-Side Driver
-VL
GND_SHIELD
3253
1K2
6217
BAS316
-42,8V -VL2
7 8 9
11-9
6202 B13 6211 B8 7110 G12 7211 B13 7227 F11 7232-4 G4
6205 C14 6212 D8 7112 G13 7218 C1 2 7228 E6 7232-5 D4
6206 D14 6213 G8 7203 B13 7220 C1 0 7231 E10 7232-6 D3
6208 H8 6214 D7 7208 B11 7221 C10 7232-1 F2 7235 F7
6209 D12 6216 F14 7209 B6 7222 C8 7232-2 G3 7238 G6
6210 D8 6217 H7 7210 F9 7223 F8 7232-3 G4 7239 D5
10 11 12
1
+AMP
2202
100n
GND_SHIELD
5200
BEAD 90MHz
2200
100n
GND_SHIELD
BC847BW
3207
0,7V
+43V 470K
7211
BC857BW
7208
+43V 3209 +43V
BC856B
1K0
+4,2V
GND_PROTECT
Short Circuit
Protection
SC_R
7218
to D1
+AMP
STP14NF12FP
3219
7220 18K
BC857BW
Only for DARC feature
5205 3224
AMP_CLIP
4u7
6K8
1
1012
GND_PROTECT
GND_SHIELD
I J
5204
+42V
20u Output Filters
5201
-42V
5202
30u
1 2
4 3
HF2024
7231
STP14NF12FP
4
GND_SHIELD
-44,7V
Short Circuit
Protection
7227
MMBTA42
3241 -42,8V
1K0 F212
-42,9V
Output-DC-Protection
BC847BW
0,7V
7110
3112
0V
2213
F114 47K
100n
GND_SHIELD
5203
GND_PROTECT
BEAD 90MHz
3116
2229
GND_PROTECT 470K 0,7V
100n
GND_SHIELD
6104
BC857BW
-43V
7112
-AMP
BAS316
1
GND_PROTECT
V
EVM ...V DC voltages measured in tuner mode
10 11 12
7240 F5 F214 E14
7243 G14 F215 G14
7244 B10 F216 E15
7245 E9 F217 E15
F201 D4 F218 E15
F212 F10 F219 E15
13 14 15
A
Output-DC-Protection
DC_PROT
0,7V
3201
0V
7203
47K
0V
B
6202
GND_PROTECT
0,2V BAS316
C
FAN CONTROL
6205
BAV99 COL
3223
330K
L_PROT
from_LS_L
6206
2
BAV99 COL
FAN_CONT D
K
GND_PROTECT
F214 1307
1201
4
5
F216 RED1
q
GND_SHIELD
1 E
F217
1212 1211
2
1 1 BLACK1
3
2 8200 2 2 F218
BLACK2
q
LS_L_neg
3 4p 3
3
LS_L
4 4 F219
4
WH04D-1 WH04D-1
RED2
6 1
to 6205
L_PROT
OSA-SS YKD21-0026N
F
6216
+12V_A
1N4148
DC_PROT
0V
2
G
3263
7243
BC817-25W
0,7V
AMP_RELAIS 10K
GND_SHIELD
H
for wave forms see chapter 11-2 Service Hints
Combi board P2003 150W class D, 05.12.03
13 14 15