SONY HCD- X255 - RG170 - RG470 COMPACT DISC DECK RECEIVER – Power Amplifier Section Circuit Diagram

HCD-GX255 is the amplifier, CD player, tape deck and tuner section in MHC-GX255.
HCD-RG170 is the amplifier, CD player, tape deck and tuner section in MHC-RG170.
HCD-RG470 is the amplifier, CD player, tape deck and tuner section in MHC-RG470.

SCHEMATIC DIAGRAM and PWB  – POWER Board – (RG470: AEP, EE, RU) – STK403-130

PRINTED WIRING BOARD and PWB  – POWER Board – (RG470: E2, E51, AR, MX) – STK412-240

European and Russian models
HCD-RG470
DIN power output (rated): 110 + 110 watts (6 ohms at 1 kHz, DIN)
Continuous RMS power output (reference): 140 + 140 watts (6 ohms at 1 kHz, 10% THD)

Music power output (reference): 280 + 280 watts (6 ohms at 1 kHz, 10% THD)

HCD-RG470
The following measured at AC 120, 127, 220, 240 V 50/60 Hz
DIN power output (rated): 130 + 130 watts (6 ohms at 1 kHz, DIN)
Continuous RMS power output (reference): 160 + 160 watts (6 ohms at 1 kHz, 10% THD)

HCD-RG170
The following measured at AC 120, 127, 220, 240 V 50/60 Hz
DIN power output (rated): 50 + 50 watts (6 ohms at 1 kHz, DIN)

Continuous RMS power output (reference): 65 + 65 watts (6 ohms at 1 kHz, 10% THD)

HCD-RG170

The following measured at AC 120, 127, 220, 240 V 50/60 Hz

DIN power output (rated): 20 + 20 watts (6 ohms at 1 kHz, DIN)
Continuous RMS power output (reference): 25 + 25 watts (6 ohms at 1 kHz, 10% THD)

Music power output (reference): 50 + 50 watts (6 ohms at 1 kHz, 10% THD)