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PRE-AMPLIFIER, SUPPLY & INTERCONNECTION CIRCUIT
1200 F9
1233 F9
1240 D12
2201 B1
2210 F2
1201 F9
1235 A11
1241 B12
2202 B6
2211 D2
1230 B9
1236 B10
1242 A13
2207 D3
2212 F2
1231 D10
1238 G12
1243 B9
2208 F3
2213 D1
1232 C10
1239 D12
1245 A9
2209 E2
2214 D2
1
2
A
6200
5.4V
+5V_MUTE_1
BAS316
6201
3200
100K
BAS316
GND_D
B
+HP
C
5.9V
HPREF
A_HP
A_HP
2213
A_HP
100p
D
3237
HPREF
12K
2215
3235
5.9V
1B_L
220R
22u
5.9V
GND_A
3233
2209
HPREF
E
6K8
180p
3231
27K
3230
27K
3236
2210
HPREF
F
6K8
180p
5.9V
2217
3234
1B_R
5.9V
22u
220R
+HP
GND_A
G
3232
HPREF
12K
2218
A_HP
100p
H
BC327-25
-32.4V
7205
6204
40VAC
1N4003GP
-33V
I
GND_D
1
2
9-3
2215 D1
2220 H3
2228 I2
2233 C2
2280 D8
3201 A2
3206 B6
3211 A4
2216 G2
2224 H6
2229 I1
2240 I5
2281 E8
3202 I6
3207 B5
3212 C4
2217 G1
2225 H5
2230 I2
2241 I6
2282 D8
3203 B7
3208 B5
3213 A4
2218 G1
2226 H5
2231 I9
2242 F6
2283 E8
3204 C7
3209 B5
3214 C4
2219 H2
2227 F8
2232 H8
2254 H7
3200 A2
3205 B6
3210 C5
3215 I7
3
4
5
+5V6
+12A
3213
3211
0.2V
47R
33R
7231
BC857B
3209
7200
4.6V
BC817-25
1K
A_HP
3210
7250
BC817-25
1K
3214
3212
47R
33R
0.2V
2207
5.9V
100u
+HP
7230
DVD_5V
8
NJM4556AM
4.8V
VS+
3 INA+
O-A
1
2 INA-
5 INB+
O-B
7
6
INB-
47K
BC857B
VS-
7252
3277
4.6V
BAS316
4
+3V3
6K8
BAS316
6227
A_HP
3.3V
3272
6228
2208
5.9V
100u
BD242B
7204
11.6V
3238
5232
+12A
2u2
6223
10R
40VAC
-6.8V
1N4003GP
A_HP
GND_D
7210
-Vkk
LM2576T-3.3
+C
1
VIN
OUT
5
ON_|OFF
FB
GND
GND_D
3
4
5
3224 E8
3233 E1
3238 G3
3245 H9
3257 C2
3263 I9
3271 E9
3225 D8
3234 G1
3239 I7
3250 I9
3259 H5
3265 H5
3272 F5
3230 F2
3235 D1
3240 I5
3252 G7
3260 I9
3268 I9
3273 F6
3231 E2
3236 F1
3243 I2
3254 H7
3261 H6
3269 H7
3274 F5
3232 G1
3237 D1
3244 I2
3256 C2
3262 I9
3270 E9
3275 E5
6
7
8
4209
For non-Kara only
MIC_OUT
4209
7232
MIC_DET
4.8V
BC847B
5.4V
+5V_MUTE_1
HP_DET
3206
A_HP
7233
5.4V
5K6
BC847B
MUTE_HDPH
3203
0.2V
10K
LOW = MUTE
(Headphone not inserted)
GND_D
4280
2282
470n
2280
3225
AMP_L
1K0
470n
2281
AMP_R
3224
1K0
470n
2283
470n
4281
NTC
0.2V
7253
BC847B
1N4003GP
+5V6
+5V
6225
GND_D
GND_D
BD438
-6.2V
+5V_DVD
5.6V
7208
SS24
-5V
+5V6
5.2V
6205
5V
Hi = ON
0.2V
DVD_5V
10K
7209
3261
BC847BW
+12M
5202
12V
33u
GND_D
5201
+3V3
+3V3
2
100u
4
3V3_sense
7211
DVD_ON
10K
10K
Hi = ON
3260
3239
DVD_5V
Hi = ON
BC847BW
6
7
8
9-3
3276 F5
4201 G12
4281 E8
6201 A2
6223 G5
6228 F5
7207 I9
3277 F5
4205 B12
5201 H6
6202 I6
6224 H5
7200 B4
7208 G7
3290 A10
4206 B12
5202 H6
6203 I6
6225 F7
7204 G5
7209 H7
3291 A10
4209 B9
5232 G3
6204 H1
6226 I2
7205 H2
7210 H5
4200 G12
4280 D8
6200 A2
6205 G7
6227 F5
7206 H9
7211 I7
9
10
11
1245
EH-B
1
MIC_OUT
2
MIC_Gnd
TO HP PCB
3290
1235
EH-B
40VAC
1
2R2
+12A
3291
8
GND_D
2
7
~F1
2R2
3
6
MIC_Gnd
4
9291
5
~F2
4
5
3V3_sense
GND_D
4206
4
3
6
4205
NTC
3
2
+3V3
2
1
GND_D
1
1236
+5V_DVD
1243
1230
FE-BT-VK-N
FE-BT-VK-N
+12V_DVD
FE-BT-VK-N
1
For Karaoke
LPC
GND_M
2
GND_D
+5V
3
-5V
+5V6_ECO
+12V_DVD
4
+12M
5
PWD_DN
1232
FE-BT-VK-N
1
NTC
2
GND_D
3
40VAC
4
PWD_DN
FE-BT-VK-N
1231
10
A0
A_HP
9
A1
8
A2
AMP_ON_LRCS
7
AMP_C
I2C_CLK3
6
GND_C
GND_D
5
AMP_ON_C
I2C_CLK2
4
GND_D
A_HP
A_HP
3
I2C_CLK1
FREQ_HOP
2
NTC
GND_D
1
I2C_DATA
EH-B
EH-B
1233
DVD_ON
1200
1201
EH-B
DVD_5V
1
1
1
+C
+5V6
2
2
2
3
3
3
GND_D
GND_D
-Vkk
4
4
4
4201
~F1
5
5
5
4200
+5V6
~F2
6
6
6
7
7
7
GND_M
8
8
8
GND_A
9
9
9
+12A
10
10
10
+12M
TU_ENABLE
TU_DATA
BD438
GND_D
+12V_DVD
7206
TU_CLK
11.8V
TU_STEREO
GND_D
11.3V
MUX_VU
MUX_DET
+5V6_ECO
0.2V
GND_D
7207
LPC
BC847BW
MUTE_SCART_LO
PWD_DN
GND_M
9
10
11
7230 E3
7252 F5
7231 B5
7253 F6
7232 B6
9291 B10
7233 B7
7250 C4
12
13
FMN
A
1242
1
2
3
4
5
6
1241
7
1
B
2
8
3
4
9
5
6
10
7
8
11
9
10
12
11
12
13
13
14
15
C
FMN-BTRK
TO DVD Module
D
1239
1240
FE-BT-VK-N
FE-BT-VK-N
1
1
2
2
3
3
4
E
4
5
5
6
6
7
7
8
8
9
9
10
10
11
F
11
12
12
13
13
14
14
15
16
17
G
1238
FE-BT-VK-N
1
2
3
H
4
5
6
7
8
9
10
I
11
12
13
AV circuit 3139 118 35006 sheet 2 dd wk334
12
13
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