Sony HCD EX600 – SMPS and amplifier circuit diagram

Sony HCD-EX600 HCD-EX700 HCD- EX900 Power supply Regulator - Power amplifier Schematic

Used ICs: TAS5630BPHDR – TA5613APHDR – TA5611APHDR – STR-Y6766

HCD-EX600 is the amplifier, USB, CD player and tuner section in MHC-EX600.
HCD-EX700 is the amplifier, USB, CD player and tuner section in MHC-EX700.
HCD-EX900 is the amplifier, USB, CD player and tuner section in MHC-EX900.

HOW TO OPEN THE TRAY WHEN POWER SWITCH TURN OFF

RELEASING THE DISC TRAY LOCK

The disc tray lock function for the antitheft of an demonstration disc in the store is equipped.

Releasing Procedure:

1. Press [Power] button to turn the power on.

2. Press the [FUNCTION] button to select CD function.

3. While pressing the [Stop] button for more 5 seconds.

4. The message “CHILD LOCK OFF” is displayed and the disc tray is unlocked.

Note: When “CHILD LOCK ON” is displayed, the slot lock is not released by turning power on/off with the [Power] button.

AMPLIFIER CIRCUIT

POWER (SMPS)

Amplifier section
The following measured at AC 230 V, 50/60 Hz
HCD-EX900
Front Speaker:
Power output (rated): 80 W + 80 W (at 3 Ω, 1 kHz, 1% THD)
RMS output power (reference): 135 W + 135 W (per channel at 3 Ω, 1 kHz)
Subwoofer: RMS output power (reference): 200 W (at 8 Ω, 100 Hz)
HCD-EX700
Power output (rated): 120 W + 120 W (at 4 Ω, 1 kHz, 1% THD)
RMS output power (reference): 200 W + 200 W (per channel at 4 Ω, 1 kHz)
HCD-EX600
Power output (rated): 50 W + 50 W (at 4 Ω, 1 kHz, 1%THD)
RMS output power (reference): 90 W + 90 W (per channel at 4 Ω, 1 kHz)

AM tuner section: Tuning range
Russian model: 531 kHz ‒ 1,602 kHz (9 kHz step)
Other models
531 kHz ‒ 1,602 kHz (9 kHz step)
530 kHz ‒ 1,610 kHz (10 kHz step)
Intermediate frequency: 400 kHz