Itt Audio Amplifier - Philips L9.2EAA Service Manual

Schematics and PWB's
1 1 2 2 3 3

ITT AUDIO AMPLIFIER

MainAudioL|Mono
D1-49
3961
Buzzer
D1-2
MainAudioR
D1-78
Volume
D1-3
2950
VlotAux8V
22u
SOUND SYSTEM
EUROPE-NICAM/2CS NAFTA/LATAM-BTSC
*
Side AV No Side AV Side AV No Side AV
0248 Yes - Yes -
2801 22p 22p 22p 22p
2804 22p 22p 22p 22p
2811 - - - -
2812 - - - -
2827 10u 10u 4u7 4u7
2837 100p 100p 47p 47p
2838 100p 100p 47p 47p
3899 5k6 4k7 - -
4801 Jumper Jumper Jumper Jumper
4802 Jumper Jumper Jumper Jumper
4803 Jumper - - -
4804 Jumper - - -
4805 - - Jumper Jumper
4806 - - Jumper Jumper
5801 15u 15u 22u 22u
7803 MSP3415D MSP3415D MSP3435G MSP3435G MSP3415D
9801 Jumper Jumper - -
9802 Jumper Jumper - -
9803 - - Jumper Jumper
9804 - - Jumper Jumper
1 1 2 2 3 3
L9.2E
4 4 5 5
For /94 only
0104
5
4
3
2
1
To Surround_Sound Panel
2953
220n
RES
2963
220n
7954
TDA7053A
4
2
6
6953
8
BZX79-C3V3
7956
BC857B
AP-NICAM/2CS/Multi-Mono AP-RF-Mono/AV-Stereo
MSP/BSP SOUND
Side AV No Side AV Side AV No Side AV
DIVERSITY TABLE
Yes - Yes -
22p 22p - - SOUND AMPLIFIER
22p 22p - -
2x1W
- - 220n 220n
- - 1n 1n 2954 -
4u7 4u7 4u7 4u7 2957 220n
47p 47p 47p 47p 2965 -
47p 47p 47p 47p 7953 TDA7053A
- - - - 7954 -
Jumper Jumper - - 9958 Jumper
Jumper Jumper - -
- - - -
- - - -
Jumper Jumper Jumper Jumper HEADPHONE
Jumper Jumper Jumper Jumper
Headphone
15u 15u - -
MSP3415D BSP3505D BSP3505D 0247 Yes
- - - - 9950 -
- - - - 9952 -
Jumper Jumper Jumper Jumper
Jumper Jumper Jumper Jumper
4 4 5 5
7. GB 40
6 6 7 7 8 8
2 x 3W SOUND AMPLIFIER
AudioSupply10V|14VA
7953
TDA7057AQ 4
3 13
8V5 9952
2V4
IN1 VP OUT1P
1 11
0V7 8V5
DCVOL1 OUT1M
5 10 8V5
2V4
IN2 OUT2M
7 8
0V7 8V5 9950
DCVOL2 OUT2P
2 6 12 9
2 x 1W SOUND AMPLIFIER
AudioSupply10V|14VA
A25 A26
5
VP
16
13
STABILIZER TEMPERATURE
A27 A28
Vref
PROTECTION
12
9
NC
1 3 11 15 7 14 10
2x3W
100n
-
220n
-
TDA7057AQ
-
No Headphone
-
Jumper
Jumper
6 6 7 7 8 8
9 9 10 10 11 11
0247
0246 SpkrLpIn
1
1
SpkrLpOut 2
Speaker Left
2
To 0234 of
3
3
SpkrRpOut 4
Speaker Right
4
SpkrRpIn 5
AudioSupply10V|14VA AudioSupply10V|14VA
4990
9958
AudioSupplyGnd MainAudioGnd
4988
For Engineering Purposes (AI) only
9 9 10 10 11 11
12 12 0104 A4
0246 B10
0247 B11
2950 E3
2951 E5
2952 C4
2953 B4
2954 A7
2955 D10
2956 E5
2957 C7
A A
2958 C9
2959 C9
2960 C9
2961 C9
2962 C4
2963 C4
2964 E6
2965 A7
2966 A7
3950 E3
3953 E5
B B 3961 C3
3962 C3
3963 C3
4988 E9
4990 D10
6953 E4
7953 B6
7954 C6
7956 E4
9950 B9
9952 B9
9958 D10
C C
D D
E E
F F
G G
H H
CL 96532028_051.eps
070499
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