Philips CCS 800 Service Manual page 21

Nominal level, maximum level and bandwidth
Connect a sine-wave generator to one Trunk connectors (X11) and measure the output signal at the other Trunk
connector (X12) according to figure 7.
G1
Trunk
+
Audio Contr.
Sine-Wave
GND
Generator
-
Nominal level -36dBV (15.8 mVrms)
Overload level -11dBV (281.8 mVrms)
Bandwidth -36dBV (15.8mVrms)
Bandwidth -36dBV (15.8mVrms)
LBB 3310/00, 3330/00 and 3331/00
4822 861 11006
90 ... 264V AC
~ ~
Power Supply
AC
24V DC
X10
X11
1
M1
SHIELD
M2
(GND)
M110 M111 M121
X110 6 9
Line-IN
settings for G1
Amplitude Frequency
1kHz
1 kHz
125 Hz
12.5 kHz
PCB CPSU
Loudspeaker
X205
25Ω
(GND) (GND)
M122 M124 M150 M151
4 8 2 7 2
Rec-IN Rec-IN Telephone
L R IN
Figure 7
measurement results for A1
-9.4dBV +/- 1dB (85dB SPL)
+3dBV +/- 1dB (115dB SPL)
-2dB +/- 2dB related to nom. level at 1kHz
-1dB +/- 1dB related to nom. level at 1kHz.
page: 19
SERVICE MANUAL
Trunk
X12
M3
3
+
M2
GND
-
5 X150
Amplification
Date of issue:
A1
V
003_007.cdr
July 1998