DAV-C770, HCD-C770, HCD-C990 - Sony DVD Service Manual (repair manual). Page 2

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HCD-C770/C990
2
Note:
 Refer to the “5. TEST MODE” (page 22) for another self-diagnosis
function.
Self-diagnosis Function
(When letters/numbers appear in the
display)
When the self-diagnosis function is
activated to prevent the system from
malfunctioning. In this case a five-character
service number (e.g., C 13 00) with a
combination of a letter and digits appears on
the screen and the front panel display. Refer
to the following table.
First three
characters of
the service
number
C 13
C 31
E XX
(xx is a number)
Cause and/or Corrective
Action
The disc is dirty.
, Clean the disc with a soft
cloth. 
The disc is not inserted
correctly.
, Re-insert the disc
correctly.
To prevent a malfunction, the
system has performed the self-
diagnosis function.
, Contact your nearest Sony
dealer or local authorized
Sony service facility and
give the 5-character
service number.
Example: E 61 10
C:13:00
SELF  DIAGNOSIS  FUNCTION
Super Audio CD/DVD system
Laser
Semiconductor laser
(Super Audio CD/DVD: 
λ = 650 nm)
(CD: 
λ = 780 nm)
Emission duration: continuous
Signal format system
NTSC or NTSC/PAL
Frequency response (at 2 CH STEREO mode)
DVD (PCM): 2 Hz to 22 kHz (
±1.0 dB)
CD: 2 Hz to 20 kHz (
±1.0 dB)
Signal-to-noise ratio
More than 80 dB (VIDEO 1 (AUDIO) connectors only)
Harmonic distortion
Less than 0.03 %
FM tuner section
System
PLL quartz-locked digital synthesizer system
Tuning range
North American model:
87.5 – 108.0 MHz (100 kHz step)
Other models:
87.5 – 108.0 MHz (50 kHz step)
Antenna
FM wire antenna
Antenna terminals
75 ohms, unbalanced
Intermediate frequency
10.7 MHz
AM tuner section
System
PLL quartz-locked digital synthesizer system
Tuning range
North American model:
530 – 1,710 kHz (with the interval set at 10 kHz)
531 – 1,710 kHz (with the interval set at 9 kHz)
European model:
531 – 1,602 kHz (with the interval set at 9 kHz)
Other models:
531 – 1,602 kHz (with the interval set at 9 kHz)
530 – 1,710 kHz (with the interval set at 10 kHz)
Antenna
Loop antenna
Intermediate frequency
450 kHz
Video section
Inputs
Video: 1 Vp-p 75 ohms
Outputs
Video: 1 Vp-p 75 ohms
S video:
Y: 1 Vp-p 75 ohms
C: 0.286 Vp-p 75 ohms
COMPONENT:
Y: 1 Vp-p 75 ohms
P
B
/C
B
, P
R
/C
R
: 0.7 Vp-p 75 ohms
General
Power requirements
North American model:
120 V AC, 60 Hz
European model:
230 V AC, 50/60 Hz
Australian model:
220 – 240 V AC, 50/60 Hz
Power consumption (C770)
135 W (120 V AC) 135 W (230 V AC)
1 W  (120 V AC) 2 W (230 V AC) 
Dimensions (approx.)
× 70 × 335 mm (14 × 2 
7
/
8
 
× 13 
1
/
4
 inches) (w/h/d) 
incl. projecting parts
Mass (approx.)
4.4 kg (9 lb 12 oz)
Operating temperature
5˚C to 35˚C (41˚F to 95˚F)
Operating humidity
5 % to 90 %
Design and specifications are subject to change without notice.
355 
Power consumption (C990)
140 W (120 V AC)
1 W  (120 V AC) (at the Power Saving Mode)
(at the Power Saving Mode)
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