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Service Manual - Page 1
... (excl. HCD-EC68P/EC78P
SERVICE MANUAL
Ver. 1.0 2008.03
US Model
HCD-EC68P/EC78P
Canadian Model UK Model
HCD-EC78P
Australian Model
HCD-EC68P
• HCD-EC68P is the amplifier, CD player and tuner section in MHC-EC68Pi.
• HCD-EC78P is the amplifier, CD player and tuner section in Power Saving Mode)
HCD-EC68P 110 W
Dimensions (w/h/d) (excl.
AUDIO POWER SPECIFICATIONS POWER...
Service Manual - Page 2
..., screws, and all other exposed metal parts for this job. 3. Leakage current can be dam- HCD-EC68P/EC78P
Notes on chip component replacement • Never reuse a disconnected chip component. • Notice that the minus side of a tantalum capacitor may result in hazardous radiation exposure.
Flexible Circuit Board Repairing • Keep the temperature of soldering iron...
Service Manual - Page 3
...the repair parts. While... foil) may also be set to ordinary solder.
Back Panel...model is easily damaged and should be added to about 40 °C higher
than 30 cm away from the objective lens. RELEASING THE DISC TRAY LOCK The disc tray lock function for more than ordinary solder. HI AMP Board (EC78P 34 6-11. ELECTRICAL PARTS LIST 53
HCD-EC68P/EC78P SECTION 1 SERVICING...
Service Manual - Page 5
... checking the MAIN board, make a capacitor discharge of C622 and C626 for electric shock prevention. 800 Ω/2W
C626
C622
MAIN board
800 Ω/2W
HCD-EC68P/EC78P
MAIN board
MODEL IDENTIFICATION - Back Panel -
Service Manual - Page 6
... uppercase letters (A to Z), numbers (0 to /from instruction manual.
Notes on . • When using the remote ...HCD-EC68P/EC78P: US and Canadian models:
Basic Operations
Adjusting the sound
To adjust the volume Press VOLUME +/− (or turn on the system.
2 Select the clock set...from battery leakage and corrosion. • Batteries installed devices shall not be displayed appear as normal ...
Service Manual - Page 7
...set the time
to stop playback.
6 Select the sound source. HCD-EC68P....
Tip
manually.
3 ...replaced by selecting the corresponding preset number.
1 Tune in multisession mode. −
can preset your Sony dealer or local authorized Sony
service facility.
To cancel the timer Repeat the same procedure as total track number of "When carrying this message appears. Troubleshooting...
Service Manual - Page 8
...58169; repeatedly until "MANUAL" appears, and then ...installed devices shall not be guaranteed. To Pause playback Stop playback Select a folder on the unit. Incompatible MP3 discs may produce noise or interrupted audio or may damage the unit. HCD-EC68P/EC78P
HCD-EC78P: UK model... (0 to operate.
1) You cannot set the clock 1 Turn on the unit...refer to the
operating instructions supplied with a ...
Service Manual - Page 9
... only the supplied speakers.
Tip
manually.
3 Press +/− (or TUNING +/− on the unit)
repeatedly to select your Sony dealer or local authorized Sony
service facility.
TIME NG : the same...been
erased.
above to set the minutes.
5 Use the same procedure as above until "PGM" disappears while the player is stopped.
HCD-EC68P/EC78P
Other Operations
Creating ...
Service Manual - Page 10
...: US, Canadian) (Page 13)
3-8. 3 CD MECHANISM BLOCK (EC78P: UK) (Page 14)
3-10. 1 CD MECHANISM BLOCK (EC68P/EC78P: US, Canadian) (Page 15)
3-9. OP BASE ASSY (KSM-213D) (Page 17)
(EC78P: UK)
3-13. HCD-EC68P/EC78P
SECTION 3 DISASSEMBLY
• This set can be disassembled in the order shown below. 3-1. PANEL (TOP) (Page 11)
3-5. MAIN BOARD (Page...
Service Manual - Page 15
...) insulator
base unit
loading (BK) assy - 3-10. 1 CD MECHANISM BLOCK (EC68P/EC78P: US, Canadian)
PT block
three screws (BVTP3 × 10)
two screws (BVTP4 × 12)
flexible flat cable (21 core) (CN201)
1 CD mechanism block
flexible flat cable (5 core) (CN001)
HCD-EC68P/EC78P
connector (CN053)
two screws (BVTP4 × 12)
3-11. Bottom view...
Service Manual - Page 16
BELT (EC68P/EC78P: US, Canadian)
position of belt
belt belt
cover four screws
two belts (DLM3A)
16 BELT (EC78P: UK)
position of belt
belt claw
belt
tray (AU)
claw
3-13. HCD-EC68P/EC78P
3-12.
Service Manual - Page 17
OP BASE ASSY (KSM-213D)
HCD-EC68P/EC78P
op base assy (KSM-213D)
Remove four solders.
flexible flat cable (16 core) (CN301)
CD board
17 3-14.
Service Manual - Page 18
... UK model) The AM tuning interval can run the CD sled motor optionally. To release from this mode when returning the set enters standby status. When "RESET" appears, the set to ...While pressing the [x] button, press the [Z] button for instance, when cleaning the optical pick-up. HCD-EC68P/EC78P
SECTION 4 TEST MODE
COLD RESET The cold reset clears all data including preset data stored in ...
Service Manual - Page 19
HCD-EC68P/EC78P
[CD SERVO TEST MODE] This mode can check the servo system operations of the CD Servo Test Mode shown ...DISCSIZE)
RAM Write Mode (BDTRAM W) Command Out Mode (BDT COMO)
Error Rate Mode (BDT ERR)
Op ABRAKE Error (OPABRKER) SBBT Data (SBBT DAT) FEOOCD (FEOOCD) SPG Mask (00 SPG) Fix RF Gain (00 FIX) TMAX ON (00 TMA) Driver Mute OFF (00 D_M) COMOUT6X (COMOUT6X) READ2X (READ2X) REG READ...
Service Manual - Page 21
HCD-EC68P/EC78P
3 It indicates the on . 2. Because the numbers of optical pick-up system (= optical unit + BD board) when the trouble has occurred...": S character mode OFF. MANUAL SEARCH operation is being processed when the trouble has occurred.
Press three buttons of each processing.
"OFF": Tracking servo OFF.
[FUNCTION]: S character mode setting changes whenever the button is ...
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