Electro help: Sony HCD-D60 Sony HCD-RX70 COMPACT DISC DECK RECEIVER – adjustments, schematic and wiring diagrams

US Model HCD-D60-RX70, Canadian Model, AEP Model, UK Model - HCD-RX70, E Model - HCD-GR7-GR7J, Australian Model - HCD-GR7

Always respect voltages. While some may not be dangerous in themselves, they can cause unexpected reactions that are best avoided. Before reaching into a powered set, it is best to test the high voltage insulation. It is easy to do, and is a good service precaution. It makes sense to avoid exposure to electrical shock. While some sources are expected to have a possible dangerous impact, others of quite high potential are of limited current and are sometimes held in less regard.

Continuous RMS power output

Canadian model: 100+100 watts (8 ohms at 1 kHz, 5% THD)

AEP, German, East European, UK and CIS models: 55+55 watts (6 ohms at 1 kHz, 10% THD)

Other models: 70+70 watts (6 ohm sat 1 kHz, 10% THD)

Peak music power output (GR7-GR7J): 1000 watts

(AEP, German, East European, UK and CIS model): 95+95 watts (6 ohms at 1kHz, 10% THD)

CD Section:

CD Mechanism Type: CDM38-5BD29AL

Base Unit Name: BU-5BD29AL

Optical Pick-up Name: KSS-213D-Q-NP

Tape deck Section:

Model Name Using Similar Mechanism: HCD-H881

Tape Transport Mechanism Type: TCM-220WR2

SPEAKER :

accepts impedance of 8 to 16 ohms (D60-RX70)

accepts impedance of 6 to 16 ohms (GR7-GR7J)

SURROUND SPEAKER (US and Canadian models):

accepts impedance of 16 ohms.
SUPER WOOFER (GR7-GR7J-RX70 : US and Canadian models):

Voltage 1 V, impedance 1 kilo ohm

The laser diode in the optical pick-up block may suffer electrostatic break-down because of the potential difference generated by the charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic break-down and also use the procedure in the printed matter which is included in the repair parts.
The flexible board is easily damaged and should be handled with care.

The laser beam on this model is concentrated so as to be focused on the disc reflective surface by the objective lens in the optical pickup block. Therefore, when checking the laser diode emission, observe from more than 30 cm away from the objective lens.

Test mode

[MC Cold Reset]
* The cold reset clears all data including preset data stored in the RAM to initial conditions. Execute this mode when returning the set to the customer.

1. Press three buttons SPECTRUM ANALYZER , ENTER-NEXT , and DISC 1 simultaneously.
2. The fluorescent indicator tube becomes blank instantaneously, and the set is reset.

[CD Delivery Mode]

* This mode moves the pickup to the position durable to vibration. Use this mode when returning the set to the customer after repair.
1. Press POWER button to turn the set ON.
2. Press PLAY button and POWER button simultaneously.
3. A message “LOCK” is displayed on the fluorescent indicator tube, and the CD delivery mode is set.

[MC Hot Reset]

* This mode resets the set with the preset data kept stored in the memory. The hot reset mode functions same as if the power cord is plugged in and out.
1. Press three buttons SPECTRUM ANALYZER , ENTER-NEXT , and DISC 2 simultaneously.
2. The fluorescent indicator tube becomes blank instantaneously, and the set is reset.

[Sled Servo Mode]
* This mode can run the CD sled motor freely. Use this mode, for instance, when cleaning the pickup.
1. Select the function “CD”.
2. Press three buttons SPECTRUM ANALYZER , ENTER/NEXT , and FUNCTION simultaneously.
3. The Sled Servo mode is selected, if “CD” is blanking on the fluorescent indicator tube.

4. With the CD in stop status, press >> button in CD section to move the pickup to outside track, or << button to inside track.

5. To exit from this mode, perform as follows:
1) Move the pickup to the most inside track.
2) Press three buttons in the same manner as step 2.

Note:
* Always move the pickup to most inside track when exiting from this mode. Otherwise, a disc will not be unloaded.
* Do not run the sled motor excessively, otherwise the gear can be chipped.

[Change-over of FUNCTION Name]
* The FUNCTION name of external input terminal can be changed over to VIDEO or MD.
1. Press POWER button to turn the set OFF.
2. Press POWER button together with FUNCTION button, and the power is turned on, the display of fluorescent indicator tube changes to “MD” or “VIDEO” instantaneously, and thus the FUNCTION is changed over.

[Change-over of AM Tuner Step between 9kHz and 10kHz]
* A step of AM channels can be changed over between 9kHz and
10kHz.
1. Press POWER button to turn the set ON.
2. Select the function “TUNER”, and press TUNER/BAND button to select the BAND “AM”.
3. Press POWER button to turn the set OFF.
4. Press ENTER-NEXT and POWER buttons simultaneously, and the display of fluorescent indicator tube changes to “AM 9k STEP” or “AM 10k STEP”, and thus the channel step is changed over.

[LED and Fluorescent Indicator Tube All Lit, Key Check Mode]
1. Press three buttons SPECTRUM ANALYZER , ENTER-NEXT , and DISC 3 simultaneously.
2. LEDs and fluorescent indicator tube are all turned on. Press DISC 2 button, and the key check mode is activated.
3. In the key check mode, the fluorescent indicator tube displays “K 1 V0 J0”. Each time a button is pressed, “K”value increases. However, once a button is pressed, it is no longer taken into account.
“J” value increases like 1, 2, 3 ... if rotating JOG knob in “+” direction, or it decreases like 0, 9, 8 ... if rotating in “–” direction.
“V” value increases like 1, 2, 3 ... if rotating VOLUME knob in “+” direction, or it decreases like 0, 9, 8 ... if rotating in “–” direction.
4. To exit from this mode, press three buttons in the same manner as step 1, or disconnect the power cord.

[Aging Mode]
This mode can be used for operation check of CD section and tape deck section.
* If an error occurred: The aging operation stops.
* If no error occurs: The aging operation continues repeatedly.

Aging Mode in CD Section
1-1. Operating Method of Aging Mode
1. Set discs in DISC1 and DISC2 trays.
2. Select the function “CD”.
3. Press three buttons SPECTRUM ANALYZER , ENTER-NEXT , and KARAOKE PON/MPX simultaneously.
4. The aging mode is activated, if a roulette mark on the fluorescent indicator tube is blinking.
5. In the aging mode, the aging is executed in a sequence given in “1-2. Operation during Aging Mode”. The aging continues unless an alarm occurred.
6. To exit from the aging mode, press POWER button to turn the set OFF.
* If a button other than buttons In CD section is pressed during aging, the aging in the CD section is finished.

* To execute aging to the tape deck section successively, press > button in the deck A. “AGING” is displayed on the fluorescent indicator tube. (For the aging in tape deck, see “2. Aging Mode in Tape Deck Section”.

1-2. Operation during aging Mode
In the aging mode, the program is executed in the following sequence.

1. The disc table is ejected.
2. The disc tray turns to select a disc. (For a disc selection sequence, see Section 1-3.)
3. TOC of disc is read.
4. The pickup accesses to the last track.
5. A disc is ejected.
6. Steps 2 through 5 are repeated.

1-3. Disc Selection Sequence
* During the aging mode, discs are selected in the following sequence:

Disc 1 > Disc 2 > Disc 2 < Disc 1 > [repeats]

2. Aging Mode in Tape Deck Section
2-1. Operating Method of Aging Mode
1. Load a commercially available 10-minute tape into the decks A and B respectively.
(If a 10-minute tape is not available, another tape may be used but a cycle time will be longer.)
2. Select the function “TAPE”.

3. Rewind tapes in advance by pressing << button respectively on decks A and B

4. Press three buttons SPECTRUM ANALYZER , ENTER-NEXT , and KARAOKE PON-MPX simultaneously.

5. Press PLAY button on deck A. (This button triggers the aging mode.) button on deck A. (This button triggers the aging mode.)

7. In the aging mode, the aging is executed in a sequence given in “2-2. Operation during Aging Mode”.
The aging continues unless an alarm occurred.
8. To exit from the aging mode, press POWER button to turn the set OFF

2-2. Operation during Aging Mode
In the aging mode, the program is executed in the following sequence.
1. A tape on FWD side is played for one minute.
2. PAUSE STOP is made.
3. Recording is made for 3 minutes. (For the deck not having the record function, the play is executed. In this case, > LED does not light up.)

4. FF is executed up to the end of tape.
5. A tape is reversed, and the tape on REV side is played for one minute.
6. PAUSE STOP is made.
7. Recording is made for 3 minutes. (For the deck not having the record function, the play is executed. In this case, < LED does not light up.)

8. FF is executed up to the end of tape.
9. Steps 1 through 8 are executed for the other deck.
10. Steps 1 through 9 are repeated unless an alarm occurred.

2-3. Deck Selection Sequence
* During the aging mode, decks are selected in the following sequence:

Deck A (FWD) > Deck A (REV) > Deck B (REV) > Deck B (FWD) > [repeats]

PCB locations