Monday, February 15, 2016

PANASONIC SA-MAX200PH - CD Stereo System – Service mode – factory reset - Self diagnostic mode - CD Mechanism Error Codes – SMPS Power supply schematic - C1ZBZ0004646 - Audio system repair and service

Category: Audio System Repair and Service 

Contents of this article 

  • Service mode access 
  • Doctor mode access 
  • Cold reset 




PANASONIC SA-MAX200PH

Service Mode
Cold-Start
Here is the procedure to carry out cold-start or initialize to shipping mode.
1. Unplug AC power cord
2. Press & hold [POWER] button
3. Plug AC power cord while [POWER] button being pressed FL Display will show “_ _ _ _ _ _ _ _”
4. Release [POWER] button.
Doctor Mode
To enter into Doctor Mode
In CD Mode:
1. Press [STOP ] button on main unit follow by [4] and [7] on remote control.
2. To exit, press [DELETE] button on remote control or, press [POWER] button on Main Unit
EEPROM checksum check
Displaying of
1. Year Develop.
2. Model Type.
3. ROM Type.
4. Firmware Version.
In CD mode:
1. Enter into Doctor Mode
Volume Setting Check
To check the volume setting of the main unit.
In Doctor mode:
1. Press [1] button on the remote control.
2. To cancel this mode, press [0] button on the remote control.
FL Display Check
To check the FL segment display.
All segments will light up while all LED blink at 0.5s intervals.
In Doctor mode:
1. Press [1] button on the remote control.
2. To cancel this mode, press [0] button on the remote control.
Traverse Test
To determine the traverse unit operation for inner & outer access track.
In this mode,ensure the CD is in the main unit.
In Doctor Mode:
2. To cancel this mode, press [0] button on the remote control.
1. Press [10] [1] [2] button on the remote control.
Reliability Test (Combination)
To determine the traverse unit
operation & open/close operation of the mechanism.
In this mode,ensure the CD is in the main unit.
In Doctor Mode:
1. Press [10] [1] [5] button on the remote control.
Loading Test
To determine the open & close operation of the CD Mechanism Unit.
In this mode, the tray will open & close automatically.
In Doctor Mode:
1. Press [10] [2] [1] button on the remote control.
2. To cancel this mode, press [0] button on the remote control.
CD Self- Adjustment Test
To display result of self-adjustment for CD.
In Doctor Mode:
1. Press [10] [1] [4] button on the remote control.
To cancel this mode, press [0] button on the remote control.
CD LSI Version Check
For checking CD LSI Version and checksum information.
In Doctor Mode:
1. Press [4] button on the remote control.
To cancel this mode, press [0] button on the remote control.
Self Diagnostic Mode
To enter into self diagnostic checking
Step 1: Select CD mode (Ensure no disc is inserted).
Step 2: Press & hold [ STOP ] button follow by [ SEEK /FORWARD] on main unit for 2 seconds.
Error code information
System will perform a check on any unusual/error code from the memory
Step 1: In self diagnostic mode, Press [STOP] on main unit.
To exit, press [^/I] on main unit or remote control.
Delete error code
To clear the stored in memory (EEPROM IC)
Step 1: In self diagnostic mode, Press [0] on remote control.
To exit, press [^/I] on main unit or remote control.
Cold Start
To active cold start upon next AC power up when reset start is execute the next time.
In self diagnostic mode:
1. Press [3] button on the remote control.
Self-Diagnostic Error Code Table
Self-Diagnostic Function provides information on any problems occurring for the unit and its respective components by displaying the error codes. These error code such as U**, H** and F** are stored in memory and held unless it is cleared. The error code is automatically display after entering into self-diagnostic mode.

CD Mechanism Error Codes (CD Mechanism Unit)
CD H15
CD Open Abnormal
During operation POS_SW_R On fail to be detected with 4 sec. Erro No. shall be clear by force during cold start.
Press [STOP ] on main unit for next error.
CD H16 CD
Closing Abnormal
During operation POS_SW_CEN On fail to be detected with 4 sec. Error No. shall be clear by force or during cold start.
Press [ STOP ] on main unit for next error.
F26
Communication between CD servo LSI and micro-p abnormal.
During switch to CD function, if SENSE = “L” within failsafe time of 20ms.
Press [STOP] on main unit for next error.
Sales Demonstration Lock Function
Entering into Sales demonstration lock mode
Here is the procedures to enter into the Sales demonstration lock mode.
Step 1: Turn on the unit.
Step 2: Select to any mode function.
Step 3: Press and hold [ OPEN/CLOSE] and [CD] keys for 5 sec or more.
The display will show upon entering into this mode for 2 sec.
Note: [ OPEN/CLOSE] button is invalid and the main unit displays “LOCKED” while the lock function mode is entered.
Cancellation of Sales demonstration lock mode
Step 1: Turn on the unit.
Step 2: Select to any mode function.
Step 3: Set volume to Vol 19.
Step 4: Press and hold [ OPEN/CLOSE] and [CD] keys for 5 sec or more.
The display will show upon entering into this mode for 2 sec.

SMPS POWER SUPPLY SCHEMATIC 
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