Sanyo CE28FN1-E - 15 Service Menu

Service Manual MS CE25FN1-E
8
The microprocessor detects the headphones presence via the HP_SW signal. The MUTE signal also affects
the headphones audio.
The FM or NICAM-modulated sound IF signal, which inputs the audio processor, is produced by the sound IF
circuit, IC1350. This IC takes the signal from the tuner and converts it to the intercarrier frequency. The internal
VCO frequency is adjusted by means of L1351.
15. Service menu
The service menu is accessed by holding down the front key “VOL-“ and simultaneously pressing the teletext
green key from the remote control. The service menu is a two level structure as shown in the diagram below.
The active keys (local or remote) in service mode are: VOL-, VOL+, P-, P+, MENU and the digits. The
navigation through this menu works the same than in the user menu.
* The P+ and P- keys allow to navigate through the options in the active menu.
* The VOL+ key opens the second level menu if available. If there is a highlighted adjustment, the VOL- and
VOL+ keys allow to change it.
* The MENU key goes back one level menu. If the active menu is the main one, it exits the service mode.
* The digit keys allow direct entry for adjustments.
* The SERVICE mode is exited by pressing any other key.
HOR SHIFT
EW AMPLIT
PARABOLA
CORNER PAR
TRAPEZIUM
VERT SLOPE
VERT AMPL
S-CORREC
VERT SHIFT
GEOMET
PLL
PLL L'
AGC
VIF
GREEN
BLUE
WHITE
BRI
ADJ
AKB
K-DRV
G2
Y/C PAL
Y/C SECAM
Y/C NTSC
Y/C AV
PBL SPEED
CONTR OSD
CONTR TXT
CENTR TXT
SEMI MUTE
INI NVM
MORE
FFI
SCS
CMB
TXEAST
DSA
OSO
OEM
16:9
CONFIG
PAL BG
PAL DK
PAL I
SECAM BG
SECAM DK
SECAM L
NTSC BG
NTSC M
STANDARD
V-STAT S-STAT I2C BUS
SERVICE