Description Of Error Code; Error Detection For Cassette Mechanism Block; Error Detection For Cd/Changer Block; Power Supply Related Error Detection - Panasonic SA-AK78 Service Manual

9 Description of Error Code

9.1.

Error detection for Cassette Mechanism block

No. Error
1 MODE SW
detection error
2 REC INH SW
detection error
3 HALF SW
detection error
4 Reel Pulse
detection error
5 TPS abnormal
9.2.

Error detection for CD/Changer block

No. Error
1 REST SW detection error
2 CD tray opens automatically
3 Does not startup when [PLAY]
button is pressed
4 Transmission error between CD
servo LSI and micon
5 Startup fails even when you
insert CD or the selected disc tray
does not open
6 Cannot insert CD
7 Cannot eject CD
8 CD power error
9 The CD tray closes
9.3.

Power Supply related error detection

No. Error
1 POWER AMP
output abnormal
Error Problem condition
Display
H01 Faulty operation of cassette mechanism.
Faulty contact or short-circuit of mechanism mode switch (S951, S971).
H02 Recording not possible.
Faulty contact or short-circuit of REC INH switch (S974, S975).
H03 Playback cannot perform.
Faulty contact or short-circuit of HALF siwtch (S952, S972).
F01 The tape advances slightly and then stops.
Faulty reel pulse, faulty hole detect IC (IC951, IC971).
F02 Cassette deck will not perform TPS function.
Faulty playback EQ/recording amplifier IC (IC101).
Error Problem condition
Display
F15 CD does not function.
This error occurs when the Optical Pick Up REST SW (S701) is not
detected within the specified time (about 8 seconds)
F16 CLAMP switch (S4) NG (Check & Replace)
F17 BOTTOM switch (S5) NG (Check & Replace)
F26 CD does not function.
This error occurs when the POWER is ON for the CD block and an error
is
detected after the transmission has started.
F27 Tray 1 detect switch or Tray 2 detect switch NG (Check & Replace)
F28 Tray 1 detect switch NG (Check & Replace)
F29 Check if disc is stuck. Tray 2 detect switch NG (Confirm & Replace)
F75 CD does not function.
Check if CDRST is H for SELECTOR at CD. If it is not H after 1 second,
it shall be memorised as an error. (IC702)
H15 CD disc tray detect switch NG (S3) (Check & Replace)
Error Problem condition
Display
F61 When POWER is switched on, power become off automatically.
During normal operation, if DC DET become L, PCNT shall become
L and the error display on the left shall be displayed. (IC501)
9
SA-AK78