Sunday, March 22, 2015

SONY HCD-S300 ADJUSTMENT MODE AND POWER SUPPLY CIRCUIT

SONY HCD-S300 

DVD HOME THEATER SYSTEM 

ADJUSTMENT MODE AND POWER SUPPLY CIRCUIT 

STARTING TEST MODE
Set the FUNCTION to DVD with the main unit power on. Next, while pushing the [ S T O P ] button and the [ M U T I N G ] button on the main unit at the same time, turn the regulator to the right to start Test Mode and display the menu shown below on the TV screen. At the bottom of the menu screen, the model name and revision number are displayed. To execute each function, select the desired menu and press its number on the remote commander. To exit from Test Mode, press the [ P O W E R ] button.
SYSCON DIAGNOSIS
The same contents as board detail check by serial interface can be checked from the remote commander. On the Test Mode Menu screen, press [ 0 ] key on the remote commander, and the following check menu will be displayed.
0. Quit
Quit the Syscon Diagnosis and return to the Test Mode Menu
1. All
All items continuous check This menu checks all diagnostic items continuously. Normally, all items are checked successively one after another automatically unless an error is found, but at a certain item that requires judgment through a visual check to the result, the following screen is displayed for the key entry.
For the ROM Check, the check sum calculated by the Syscon is output, and therefore you must compare it with the specified value
for confirmation. Following the message, press [ N E X T ] key to go to the next item, or [ P R E V ] key to repeat the same check again. To quit the diagnosis and return to the Check Menu screen, press [ S T O P ] or [ E N T E R ] key. If an error occurred, the diagnosis is suspended and the error code is displayed.
Press [ S T O P ] key to quit the diagnosis, or [ P R E V ] key to repeat the same item where an error occurred, or [ N E X T ] key to continue the check from the item next to faulty item. Selecting 2 and subsequent items calls the submenu screen of each item. For example, if “5. Supply” is selected, the following submenu will be displayed.
0. Quit
Quit the submenu and return to the main menu.
1. All
All submenu items continuous check This menu checks 2 and subsequent items successively. At the item where visual check is required for judgment or an error occurred, the checking is suspended and the message is output for key entry. Normally, all items are checked successively one after another automatically unless an error is found.
Selecting 2 and subsequent items executes respective menus and outputs the results. For the contents of each submenu, see “Check Items List”
General Description of Checking Method
2. Version
(2-2) Revision ROM revision number is displayed.- Error: Not detected. The revision number defined in the source file of ROM (At the beginning of mass production, the Flash ROM of IC205 is used, but midway it is replaced by the IC206 OTP ROM. IC205 or IC206) is displayed with four digits. Below IC205 are all IC205 or IC206.
(2-3) ROM Check Sum Check sum is calculated. Error: Not detected. The 8-bit data are added at addresses 0x000F0000 ~ 0x002EFFFF of ROM (IC205) and the result is displayed with 4-digit hexadecimal number. Error is not detected. Compare the result with the specified value.
(2-4) Model Type Model code is displayed. Error: Not detected. The model code read from EEPROM (IC201) is displayed with 2-digit hexadecimal number.
(2-5) Region Region code is displayed. Error: Not detected. The region code determined from the model code is displayed.
3. Peripheral
(3-2) Gate Array Check
Data write > read, and accord check Error 02: Gate array write/read discord Data 0x00 > 0xFF are written to the address 0xF of GA (IC601), then read and checked if they accord.
(3-3) EEPROM Check Data write > read, and accord check Error 03: EEPROM write/read discord Data 0x9249, 0x2942, 0x4294 are written to addresses 0x00 > 0xFF of EEPROM (IC201), then read and checked. Before writing, the data are saved, then after checking, they are written to restore the contents of EEPROM.
4. Servo
(4-2) Servo DSP Check Data write >  read, and accord check Error 12: Read data discord Data 0x9249, 0x2942, 0x4294 are written to the address 0x602 of RAM in the Servo DSP (IC701), then read and checked.
(4-3) DSP Driver Test Test signal data → DSP Driver Error: Not detected. Caution: Do not conduct this test with a mechanical deck connected. The maximum voltage is applied to the Servo Driver IC (IC801, IC802). If mechanical deck is connected, the motor and optics could be damaged. Disconnect mechanical deck following the output message, then enter specified 4- or 5-digit number from the remote commander, and press the [ E N T E R ]. The test is conducted only when the input data accord. Check the output level, then press the [ N E X T ] to finish the test. This test is skipped if “All” is selected. Supplement: How to disconnect mechanical deck Disconnect flat cables connected to the CN002 and CN003 of MB-82/85 board. Also, disconnect harness from the CN011.
5. Supply
Caution: Do not conduct this check with a mechanical deck connected. An access is made to the stream supply and servo control IC (IC303) and external RAM (IC304) using check data. If mechanical deck is connected, the motor and optics could be damaged. This check is also executed by the “All” menu item. Supplement: How to disconnect mechanical deck Disconnect flat cables connected to the CN002 and CN003 of DVD board. Also, disconnect harness from the CN011.
(5-2) ARP Register Check Data write >  read, and accord check Error 08: ARP register write, and read data discord Data 0x00 to 0xFF are written to the TMAX register (address 0xC6) in ARP (IC303), then they are read and checked.
(5-3) ARP to RAM Data Bus Data write > read, and accord check Error 09: ARP < > RAM data bus error Data 0x0001 to 0x8000 where one bit each is set to 1 are written to the address 0 of RAM (IC304) connected to the ARP (IC303) through the bus, then they are read and checked. In case of discord, written bit pattern and read data are displayed. If data where multiple bits are 1 are read, the bits concerned may touch each other. Further, if data where certain bit is always 1 or 0 regardless of written data, the line could be disconnected or shorted.
(5-4) ARP to RAM Address Bus Data write > other address read discord check Error 10: ARP > RAM address bus error Caution: Address and data display in case of an error is different from the display of other diagnosis (described later). Before starting the test, all addresses of RAM (IC304) are cleared to 0x0000. First, 0xA55A is written to the address 0x00000, and the address data are read and checked from addresses 0x00001 to 0x80000 while shifting 1 bit each. Next, the data at that address is cleared, and it is written to the address 0x00001, and read and checked in the same manner. This check is repeated up to the address 0x80000 while shifting the address data by 1 bit each. If data other than 0 is read at the addresses except written address, an error is given because all addresses were already cleared to 0. In this check, the error display pattern is different from that of other diagnosis; read data, written address, and read address are displayed in this order. However, the message uses same template, and accordingly exchange Address and Data when reading.
(5-5) ARP RAM Check Data write >  read, and accord check Error 11: ARP RAM read data discord The program code data stored in ROM are copied to all areas of RAM (IC304) connected to the ARP (IC303) through the bus, then they are read and checked if they accord. If the detail check was selected initially, the data are written to all areas and read, then the same test is conducted once again with the data where all bits are inverted between 1 and 0. If discord is detected, faulty address, written data, and read data are displayed following the error code 11, and the test is suspended.
6. AV Decoder
(6-2) 1930 RAM Data write > read, and accord check Error 13: AVD RAM read data discord The program code data stored in ROM (IC205) are copied to all areas of RAM (IC402, IC403) connected to the AVD (IC401) through the bus, then they are read and checked if they accord. Further, the same test is conducted once again with the data where all bits are inverted between 1 and 0. If discord is detected, faulty address, written data, and read data are displayed following the error code 13, and the test is suspended.
(6-3) 1930 SP ROM > AVD RAM > Video OUT Error: Not detected. The data including sub picture streams in ROM (IC205) are transferred to the RAM (IC402, IC403) in AVD (IC401), and output as video signals from the AVD (IC401). They are output from all video terminals (Composite, Y/C).
7. Video
(7-2) Color Bar AVD color bar command write > Video OUT Error: Not detected. The command is transferred to the AVD, and the color bar signals are output from video terminals. They are output from all video terminals (Composite, Y/C).
8. Audio
(8-2) ARP > 1930 Error 14: ARP > 1930 video NG 15 : ARP > 1930 audio NG
DRIVE AUTO ADJUSTMENT
On the Test Mode Menu screen, press [ 1 ] key on the remote commander, and the drive auto adjustment menu will be displayed. Normally, [ 0 ] is selected to adjust DVD (single layer), CD, DVD (dual layer), and SACD in this order. But, individual items can be adjusted for the case where adjustment is suspended due to an error. In this mode, the adjustment can be made easily through the operation following the message displayed on the screen. The disc used for adjustment must be the one specified for adjustment. However, for SACD disc, use the player with initial data if the disc is not available.
0. ALL
Select [ 0 ] and press [ E N T E R ] key, and the servo set data in EEPROM will be initialized. Then, 1. DVD-SL disc, 2. CD disc, 3. DVD-DL disc, and 4. SACD disc are adjusted in this order. Each time one disc was adjusted, it is ejected. Replace it with the specified disc following the message. Though the message to confirm whether discs other than SACD disc are adjusted is not displayed, you can finish the adjustment if pressing the [ S T O P ] button. During adjustment of each disc, the measurement for disc type judgment is made. As automatic adjustment does not judge the disc type unlike conventional models, take care not to insert wrong type discs. Also, do not give a shock during adjustment
1. DVD-SL (single layer)
Select [ 1 ], insert DVD single layer disc, and press [ E N T E R ] key, and the adjustment will be made through the following steps, then adjusted values will be written to the EEPROM.
DVD Single Layer Disc Adjustment Steps
1. SLED TILT Reset
2. Disc Check Memory SL
3. Wait 300 msec
4. Set Disc Type SL
5. LD ON
6. Spdl Start
7. Wait 1 sec
8. Focus Servo ON 0
9. Auto Track Offset Adjust
10. CLVA ON
11. Wait 500 msec
12. Tracking ON
13. Wait 1 sec
14. Sled ON
15. Check CLV Lock
16. Auto LFO Adjust
17. Auto Focus Offset Adjust
18. Auto Tilt Position Adjust
19. Auto Focus Gain Adjust
20. Auto Focus Offset Adjust
21. EQ Boost Adjust
22. Auto LFO Adjust
23. Auto Track Gain Adjust, Search Check
24. 32Tj Fwd
25. 32Tj Rev
26. 500Tj Fwd
27. 500Tj Rev
28. All Servo Stop
29. Eep Copy Loop Filter Offset
2. CD
Select [ 2 ], insert CD disc, and press [ E N T E R ] key, and the adjustment will be made through the following steps, then adjusted values will be written to the EEPROM.
CD Adjustment Steps
1. Sled Tilt Rest
2. Disc Check Memory CD
3. Wait 500 msec
4. Set Disc Type CD
5. LD ON
6. Spdl Start
7. Wait 500 msec
8. Focus Servo ON 0
9. Auto Track Offset Adjust
10. CLVA ON
11. Wait 500 msec
12. Tracking ON
13. (TC Display Start)
14. Wait 1 sec
15. Jitter Display Start
16. Sled ON
17. Check CLV ON
18. Auto LFO Adjust
19. Auto Focus Offset Adjust
20.
21. Auto Focus Gain Adjust
22. Auto Focus Offset Adjust
23. Eq Boost Adjust
24. Auto LFO Adjust
25. Auto Track Gain Adjust, Search Check
26. 32Tj Fwd
27. 32Tj Rev
28. 500Tj Fwd
29. 500Tj Rev
30. All Servo Stop
3. DVD-DL (dual layer)
Select [ 3 ], insert DVD dual layer disc, and press [ E N T E R ] key, and the adjustment will be made through the following steps, then adjusted values will be written to the EEPROM.
DVD Dual Layer Disc Adjustment Steps
1. Sled Tilt Reset
2. Disc Check Memory DL
3. Wait 500 msec
4. Set Disc Type DL
5. LD ON
6. Spdl Start
7. Wait 1 sec, Layer 1 Adjust
8. Focus Servo ON 0
9. Auto Track Offset Adjust
10. Clva ON
11. Wait 500 msec
12. Tracking ON
13. Wait 500 msec
14. Sled ON
15. Check CLV Lock
16. Auto Loop Filter Offset Auto Focus Adjust
17.
18. Auto Focus Gain Adjust
19. Auto Focus Offset Adjust
20. Eq Boost Adjust
21. Auto Loop Filter Offset
22. Auto Track Gain Adjust, Search Check
23. 32Tj Fwd
24. 32Tj Rev
25. 500Tj Fwd
26. 500Tj Rev, Layer 0 Adjust
27. Fj (L1 -> L0)
28. Auto Track Offset Adjust L0
29. Clva ON
30. Wait 500 msec
31. Tracking ON
32. Wait 500 msec
33. Sled ON
34. Check CLV Lock
35. Auto Focus Filter Offset
36. Auto Focus Adjust
37.
38. Auto Focus Gain Adjust
39. Auto Focus Offset Adjust
40. Eq Boost Adjust
41. Auto Loop Filter Offset
42. Auto Track Gain Adjust, Search Check
43. 32Tj Fwd
44. 32Tj Rev
45. 500Tj fwd
46. 500Tj Rev, Layer Jump Check
47. Lj (L0 -> L1)
48. Lj (L1 -> L0)
49. All Servo Stop
4. SACD
Select [ 4 ], insert SACD disc, and press [ E N T E R ] key, and the adjustment will be made through the following steps, then adjusted values will be written to the EEPROM. However, if SACD disc is not available, use the player with initial data, skipping the SACD adjustment. In this case, you can finish the adjustment if pressing the [ S T O P ] button.
SACD Adjustment Steps
1. Sled Tilt Reset
2. Set Disc Type CD
3. LD ON
4. Spdl Start
5. Wait 500 msec
6. Focus Servo ON 0
7. Auto track Offset Adjust
8.
9. CLVA ON
10. Wait 500 msec
11. Tracking ON
12. Wait 1 sec
13. Sled ON
14. Check CLV ON
15. Auto Focus Offset Adjust
17.
18. Auto Focus Gain Adjust
19. Auto Focus Offset Adjust
20. Eq Boost Adjust
21. Auto LFO Adjust
22. Auto Track Gain Adjust
23. 32Tj Fwd
24. 32Tj Rev
25. 500Tj Fwd
26. 500Tj Rev
27. All Servo Stop */
POWER SUPPLY CIRCUIT 
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