SONY HCD-RG66T - STK 442-130 - POWER AMP & POWER SUPPLY -
SCHEMATICS [Circuit Diagram] - TEST MODE DETAILS {Click on Pictures to
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This mode is used to check the fluorescent indicator tube,
LED, model, destination software version, volume, key and VACS level.
- Press three button[STOP], [ENTER], and [DISC 2] simultaneously.
- LEDs and fluorescent indicator tube are all turned on.
- When you want to enter the software version display mode, press [DISC 1]. The model and destination are displayed.
- Each time [DISC 1] is pressed, the display changes starting from MC version, GC version, CD version, CDDM version, CDMA version, CDMB version, BDA version, BDB version, ST version, TA version, TM version and TC version in this order, and returns to the MC version display.
- When [DISC 3] is pressed while the version numbers are being displayed except model and destination, year, month and day of the software creation appear. When [DISC 3] is pressed again, the display returns to the software version display. When [DISC 1] is pressed while year, month and day of the software creation are being displayed, the year, month and day of creation of the software versions are displayed in the same order of version display.
- Press [DISC 2] button, and the key check mode is activated.
- In the key check mode, the fluorescent indicator tube displays “K0V0”. Each time a button is pressed, “K” value increases. However, once a button is pressed, it is no longer taken into account.
- “V” value increases like 1, 2, 3 ... if rotating [VOLUME] knob in “+” direction, or it decreases like 0, 9, 8 ... if rotating in “–” direction.
- Also when [DISC 3]is pressed after lighting of all LEDs and fluorescent indicator tubes, value of VACS level appears. 9. To release this mode, press three buttons in the same manner as step 1, or disconnect the power cord.
MC TEST MODE
To enter MC Test Mode- Press three buttons of [STOP], [ENTER]and [DISC 3]simultaneously.
- The messages MUSIC, MOVIE, GAME and P FILE flash on the fluorescent indicator tube. The input FUNCTION is changed to VIDEO.
- When ▲ button is pressed, GEQ increases to its maximum and a message “GEQ MAX” appears.
- When ▼ button is pressed, GEQ decreases to its minimum and a message “GEQ MIN” appears.
- When ◄/► button is pressed, GEQ is set to flat and a message “GEQ FLAT” appears.
- When the [VOLUME] knob is turned clockwise even slightly, the sound volume increases to its maximum and a message “VOLUME MAX” appears for two seconds, then the display returns to the original display.
- When the [VOLUME] knob is turned counter-clockwise even slightly, the sound volume decreases to its minimum and a message “VOLUME MIN” appears for two seconds, then the display returns to the original display.
- To check the frequency of clock used to run the time in the unit, the clock output is available at IC501 pin 38 (CLOCK-OUT) on the MAIN board only during MC test mode.
- The frequency is 32.768 kHz or so.
- When a tape is inserted in tape deck B and recording is started, the input source function selects VIDEO automatically. When [CD SYNC HI-DUB]button is pressed during recording in function, ALC is turned on.
- When [STOP] button is pressed to stop recording, the tape deck B is selected and tape is rewound, tape is rewound using - ◄◄ button, tape is stops at around the record-starting position and playback of the recorded portion of the tape is started. If the [REC PAUSE/START] button is pressed for a pause and pressed again to resume recording, when tape deck B is rewound, tape deck B will be rewound until the position where the pause is applied.
- When [CD SYNC HI-DUB] button is pressed during playback of tape deck B, either normal speed or high speed can be selected by this button.
This mode can run the CD sled motor freely. Use this mode,
for instance, when cleaning the optical pick-up.
Procedure:
- Press [POWER] button to turn the set ON.
- Select the function “CD”.
- Press three buttons [STOP], [ENTER], and [OPEN/CLOSE]simultaneously.
- The CD service mode is selected.
- With the CD in stop status, press ►►+ button to move the optical pick-up to outside track, or press – ◄◄ button to inside track.
- To release this mode, press the [POWER] button.
