Sony HCD-GN88D Service Manual

SERVICE MANUAL
Ver 1.2 2004.03
HCD-GN88D is the amplifier, DVD
player, tape deck and tuner section in
MHC-GN88D.
Amplifier section
The following are measured at AC 120, 127, 220, 240V 50/60 Hz
DIN power output (rated)
Front speaker: 185 + 185 watts
(6 ohms at 1 kHz, DIN)
Center speaker: 50 watts
(8 ohms at 1 kHz, DIN)
Surround speaker: 50 + 50 watts
(8 ohms at 1 kHz, DIN)
Continuous RMS power output (reference)
Front speaker: 235 + 235 watts
(6 ohms at 1 kHz, 10% THD)
Center speaker: 70 watts
(8 ohms at 1 kHz, 10% THD)
Surround speaker: 70 + 70 watts
(8 ohms at 1 kHz, 10% THD)
Inputs
GAME (VIDEO): 1 Vp-p, 75 ohms
(phono jack)
GAME (AUDIO): Voltage 250 mV,
(phono jacks) impedance 47 kilohms
MD/VIDEO (AUDIO) IN: voltage 450 mV/250 mV,
(phono jacks) impedance 47 kilohms
MIC: sensitivity 1 mV,
(phone jack) impedance 10 kilohms
Sony Corporation
9-877-457-03
2004C02-1 Home Audio Company
C 2004.03 Published by Sony Engineering Corporation
HCD-GN88D
Model Name Using Similar Mechanism
DVD Mechanism Type
DVD
Section
Base Unit Name
Optical Pick-up Name
Model Name Using Similar Mechanism
TAPE
Section Tape Transport Mechanism Type
SPECIFICATIONS
Outputs
AUDIO OUT:
(phono jacks)
VIDEO OUT:
(phono jack)
COMPONENT VIDEO
OUT:
S VIDEO OUT
(4-pin/mini-DIN jack):
PHONES:
(stereo mini jack)
FRONT SPEAKER:
SUBWOOFER OUT:
(phono jack)
SURROUND SPEAKER:
CENTER SPEAKER:
MiNi Hi-Fi COMPONENT SYSTEM
E Model
Australian Model
NEW
CDM74D-DVBU23
DVBU23
TDP022W
HCD-GN800
CWM43RR23
Voltage 250 mV
impedance 1 kilohms
max. output level 1 Vp-p,
unbalanced, Sync.
negative load impedance
75 ohms
Y: 1 Vp-p, 75 ohms
P /C : 0.7 Vp-p, 75 ohms
B B
P /C : 0.7 Vp-p, 75 ohms
B R
Y: 1 Vp-p, unbalanced,
Sync negative
C: 0.286 Vp-p load
impedance 75 ohms
accepts headphones of
8 ohms or more
accepts impedance of 6 to 16 ohms
Voltage 250 mV
impedance 1 kilohms
accepts impedance of
8 ohms to 16 ohms
accept impedance of
8 ohms to 16 ohms
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