Telephone-In To Line-Out Circuit - Philips CCS 800 Service Manual

10.2.10 TELEPHONE-IN to LINE-OUT Circuit

Nominal level, maximum level and bandwidth
G1
Sine-Wave
Generator
- +
Amplitude
Nominal level -14dBV (200mV
Maximum level +11dBV (3.55V
Bandwidth -14dBV (200mV
Bandwidth -14dBV (200mV
LBB 3310/00, 3330/00 and 3331/00
4822 861 11006
90 ... 264V AC
~ ~
Power Supply
AC
24V DC
PCB CPSU
X10
Loudspeaker
(GND)
M110 M111 M121
X110 6 9 4 8
Line-IN Rec-IN
L
Figure 12
settings for G1
Frequency
) 1kHz
rms
) 1 kHz
rms
) 125 Hz
rms
) 12.5 kHz
rms
page: 24
X205 M119
25Ω
M2
(GND) (GND)
M122 M124 M150 M151
2 7 2 5 X150
Rec-IN Telephone-IN
R
measurement results for A1
Amplification
-14dBV +/- 1dB (85dB SPL)
+11dBV +/- 1dB (110dB SPL)
-0.5dB +/- 2dB related to nom. level at 1kHz
-0.5dB +/- 1dB related to nom. level at 1kHz.
SERVICE MANUAL
X110
A1
5 Line-OUT
+
V
GND
-
003_012.cdr
Date of issue:
July 1998