Friday, November 27, 2015

MARANTZ SA-12S1 SUPER AUDIO CD PLAYER TROUBLE SHOOTING DEFAULT SETTING AND POWER SUPPLY CIRCUIT

SUPER AUDIO CD PLAYER

MARANTZ SA-12S

TROUBLE SHOOTING DEFAULT SETTING AND POWER SUPPLY CIRCUIT 

Taking the disc out.
1. Remove the top cover with 8 screws.
2. Remove the both side covers with 8 screws.
3. Remove the 8 screws of front panel and unfasten 2 screws of front legs.
4. Pull out the front panel.
5. Turn right the pulley by your finger or nail. (See fig.1)
6. Then the tray is moved a little. Pull the tray with your hand at this time.
Note: Take care of unhurt gear belt.

Installing the software and entering version.
The kind of CD-ROM (software), and explanation
a) Key reassignment Disc (44444444.016) [Parts No. *SA12KEYCD]
b) Background (PAL) Disc (11111111.008) [Parts No. *SA12PALCD]
c) Background (NTSC) Disc (22222222.008) [Parts No. *SA12NTSCD]
Installing necessary CD-ROM for version.
For /N: Key reassignment Disc (44444444.016) and Background (PAL) Disc (11111111.008)
For /S: Key reassignment Disc (44444444.016) and Background (PAL) Disc (11111111.008)
For /U: Key reassignment Disc (44444444.016) and Background (NTSC) Disc (22222222.008)
For /F: Key reassignment Disc (44444444.016) and Background (NTSC) Disc (22222222.008)
How to installing the software
All software is installed from CD-ROM. These are supplied by another disc, respectively. When disc was put in the player,
software is installed automatically. And disc comes out of the player, after fi nished. The sequence to install is “Key
reassignment” fi rst and, next, is “Background”.
Entering Version and region code
Caution: This information is confidential and may not be distributed. Only a qualified service person should reprogram the mono board.
Reprogramming is limited to 25 times.
When the counter reaches 25, reprogramming is not possible anymore and the region code change counter
must be reset by means of the Diagnostic Software.
Reprogramming will be done by way of the remote control.
Put the player in stop mode, no disc loaded.
Press the following keys on the remote control.
<PLAY> followed by numerical keys <2>, <7>, <4>
The display shows “-----------“
Press now successively the following keys
For /N: <0>, <0>, <1>, <0>, <0>, <0>, <0>, <0>, <0>, <0>, <0>
For /U: <0>, <0>, <2>, <0>, <0>, <0>, <0>, <0>, <0>, <0>, <0>
For /S: <0>, <0>, <3>, <0>, <0>, <0>, <0>, <0>, <0>, <0>, <0>
For /F: <0>, <0>, <4>, <0>, <0>, <0>, <0>, <0>, <0>, <0>, <0>
Press <PLAY> again.
The TV screen will become blue during a short time to confi rm that the digital board has been reprogrammed.
How to confirm the software and the version.
11111111.008/ 22222222.008: Displayed on TV screen as background of marantz is OK, after entering version.
If a power supply is turned on, with <STOP> and <NEXT> of a player pushed, a change of NTSC mode
and PAL mode can be performed.
44444444.016: Worked <DISPLAY OFF> or <VIDEO OFF> of the player is OK, After entered version.
Version: Looked at “Audio language” or “Subtitle language” in “Personal preferences”.
The contents of “Audio language” or “Subtitle language” are as the following table.
Default setting
Reset of Personal preferences
Turned on power of the player, while depressing <PLAY> and <OPEN/CLOSE> button, reset of personal preferences can be performed
ERROR CODES 
Error Number

Explanation
0109

Requested subcode item could
not be found.
010A



Tray could not be opened or
closed completely.
010B



TOC could not be read within
timeout period.
010C



Requested seek could not be
performed.
010D



Attempt to access a non-existing
session.
01F0





Too many bytes received over
S2B Reas on: see
S2B_ILL_COMMAND error

01F1


Not enough bytes are received
over S2B Reason: see
S2B_ILL_COMMAND error


01F2



Byte received with parity error.
Reason: see
S2B_ILL_COMMAND error


01F3


CMD IDC is not valid, transmis
sion out of sync. Reason: see
S2B_ILL_COMMAND error


01F4

Byte count has an illegal value.
Reason: see
S2B_ILL_COMMAND error

Trouble shooting AV Board
Testing of A/V board can be done using diagnostic software “Player script”.
Mono board is used to generate a sound with the sound tests PINKNOISE ON and SINE ON.
A VIDEO signal is generated with COLOUR-B ON.
Functional control of scart switching is also possible.
To put set in “Player script”, press keys STOP+OPEN/CLOSE simultaneously and switch player on. Proceed until display shows .
Press PLAY to execute. During this test, an audio pink noise signal will be sent to the audio cinches and the audio outputs of the scarts..
POWER SUPPLY
Check supply voltages 3V3(IC 7400), +8Vaud(IC 7304), -8Vstby(R3615), +12Vstby(T7333). Check flex connection to mono board.
PCM_OUT[0:2] LRCLK, SCLK PCM
Check testpoints 7, 8, 9, 10, 12, 13. Check flex connection to mono board Check mono board _CLK
AUDIO AT OUTPUTS OF DAC 7401 ?
Check for analog signal at outputs of DAC IC 7401: p 1,2,4,5,28,29,31,32 (testpoint 14). Check DAC IC 7401 Check VREFA on pin 30 of DAC 7401: 1.65V?
AUDIO CINCH OUTPUTS Testpoint 15?
Check OPAMPS 7403, 7408. KILL: -8V DURING PLAY?
LEVEL OK?
Check ELCO'S 2456, 2462, 2475 Check OPAMPS 7403, 7408. Check resistors 3455, 3459, 3464, 3448, 3451, 3453 3479, 3475.
DISTORTION?
Check DAC IC 7401 Check C2455, C2459, C2461, C2464. NP0 TYPE? Check OPAMPS 7403, 7408.
NO SOUND ON AUDIO CINCH 1402 TV- & AUX SCART
To put set in “Player script”, press keys STOP+OPEN/CLOSE simultaneously and switch on. Proceed until display shows “ Press PLAY to execute test. ”. SINE ON Display shows " BUSY ".
Check HPR and HPL at conn.1410-1,3 (testpoint 16) Check OPAMP 7403-C,D
Check SWITCH 7413 Check OPAMP 7414 Check KILL transistors 7415, 7416, 7419, 7420
Check SCART SWITCH IC 7305 Check KILL transistors 7336, 7337
NO DIGITAL OUTPUT
To put set in “Player script”, press keys STOP+OPEN/CLOSE simultaneously and switch on. Proceed until display shows “ Press PLAY to execute test. SINE ON ”. Display shows " BUSY ".
Check flex connection to mono board Check mono board
Check digital trafo L5400
Check optical transmitter 6400
NO PICTURE CVBS & Y/C OUT
To put set in “Player script”, press keys STOP+OPEN/CLOSE simultaneously and switch mains on. Proceed until display shows “ COLOUR-B ON ". Press PLAY to execute.
Check supply voltages +8Vstby, –8Vstby, +12Vstby, +6Vstby. Check voltage regulator 7304 Check safety resistors 3615, 3516 Check flex connection to mono board
VIDEO CONN. 1300 CONN. 1301 Check testpoints 1-6 Check flex connection to mono board Check mono board
VIDEO CVBS CINCH -  Check testpoint 19. Check CVBS VIDEO buffer transistors 7301, 7300, 7310.
VIDEO Y/C OUT - Check testpoints 20-21. Check SCART SWITCH IC 7305. Check I2C (testpoints 22,23). Check Y/C VIDEO buffer transistor 7302, 7303.
TROUBLESHOOTING DAC BOARD
Testing of DAC board can be done using diagnostic software “Player script”. Mono board is used to generate a sound with the sound test SINE ON.
To put set in “Player script”, press keys STOP+OPEN/CLOSE simultaneously and switch player on. Press NEXT until display shows " SINE ON " Press PLAY to execute. During this test, an audio sine signal will be sent to the audio cinches.
Check supply voltages 12VA, -12VA, +5VA, +3.3VD, +12VR, +3.3VOSC (QD23) Check connection to Linear power supply Check flex connection to mono board. Master Clock at pin2 of conn. JD01(16.9344 MHz)
BCK = 3, 072MHz, LRCK = 48 kHz SDT[3:1] = DATA, SEL[3:1] = High Check flex connection to mono board.
Check for analog signal at outputs of DAC's: see oscillogram
Check voltage on TP01 (pin 25 of DAC): 2.26V?
Check filters.
Check mute circuits
Check relays
Check for analog signal at cinch outputs: see oscillogram
Check power supply voltages +12VA, -12VA
SWITCHED MODE POWER SUPPLY UNIT (PZ03)
TRANSFORMER POWER SUPPLY 
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