Bosch CCS800 - LINE-IN to REC-OUT Circuit Measurement

CCS800 | Service manual | Chapter 7 | Diagnostics and faultfinding en | 28
Bosch Security Systems | 2005-01| 3922 880 21112
7.3.9 LINE-IN to REC-OUT Circuit measurement
Connect a sine-wave generator to the LINE-IN connector and measure the output signal at the RECORDER-OUT (M129)
connector.
Input setting G1: M110 related to M111 (GND), see table below.
Settings for G1 Measurement results for A1
Amplitude Frequency Amplification
Nominal level -14dBV (200mV
rms
) 1kHz -20dBV ± 2dB (85dB SPL)
Maximum level +11dBV (1.78mV
rms
) 1 kHz +5dBV ± 2dB (110dB SPL)
Bandwidth -14dBV (200mV
rms
) 125 Hz -0.5dB ± 1dB related to nom. level at 1kHz
Bandwidth -14dBV (200mV
rms
) 12.5 kHz -0.5dB ± 1dB related to nom. level at 1kHz.
Reference: M129 See Ch. 13.6