Sony CDP-3100 - Page 54

Perform following checks: from section 3-3-4 to 3-3-8, after
attaching the top cover.
(It is not necessary to tighten the screws.)
3-3-4. Frequency Characteristics Check
Connection
Audio analyzer
(Level meter)
Rear panel
Procedure
(1) Connect the audio analyzer (level meter) to LINE OUT
CH-1.
(2) Play back the second track (1 kHz, 0 dB signal) on the
test disc (YEDS-18).
(3) Set the audio analyzer so that its level (on the level
meter) becomes 0 dB.
(4) Play back the following track on the test disc (YEDS-18)
and check that the playback levels satisfy the given
specification.
@ 3rd track (20 Hz, 0 dB)
@ 5th track (10 kHz, 0 dB)
@ 6th track (20 kHz, 0 dB)
Specification: Playback level=0+0.5 dB
(5) Connect the audio analyzer (level meter) to LINE OUT
CH-2.
(6) Perform steps (2) to (4). (Checking CH-2)
CDP-3100
3-3-5. De-emphasis Frequency Characteristics Check
Connection
Same as 3-3-4.
Procedure :
(1) Connect the audio analyzer (level meter) to LINE OUT
CH-1.
(2) Play back the second track (1 kHz, 0 dB signal) on the
test disc (YEDS-18).
(3) Set the audio analyzer so that its level (on the level
‘meter) becomes 0 dB.
(4) Play back the thirteenth track (16 kHz with emphasis) on
the test disc (YEDS-18) and check that the playback
level satisfies the following specification. -
Specification: Playback level = -9.04+0.5 dB
(5) Connect the audio analyzer (level meter) to LINE OUT
CH-2.
(6) Perform steps (2) to (4). (Checking CH-2)
3-3-6. Distortion Ratio Check
Connection
Rear panel
Distortion analyzer
Procedure
(1) Connect the audio analyzer (distortion analyzer) to LINE
OUT CH-1.
(2) Play back the following track on the test disc (YEDS-18)
and check that the distortion ratios satisfy the given
specification.
@ 2nd track (1 kHz, 0 dB)
@ 3rd track (20 Hz, 0 dB)
@ 6th track (20 kHz, 0 dB)
Specification: Distortion ratio = 0.01% or less
(3) Connect the oscilloscope to LINE OUT CH-2.
(4) Perform steps (2). (Checking CH-2)
3-5 (E)