Notes On Schematic Diagram; Types Of Transistor And Led - Sharp HT-DP4000 Service Manual

• Resistor:
To differentiate the units of resistors, such symbol as K and
M are used: the symbol K means 1000 ohm and the symbol
M means 1000 kohm and the resistor without any symbol is
ohm-type resistor. Besides, the one with "Fusible" is a fuse
type.
• Capacitor:
To indicate the unit of capacitor, a symbol P is used: this
symbol P means micro-micro-farad and the unit of the
capacitor without such a symbol is microfarad. As to electro-
lytic capacitor, the expression "capacitance/withstand volt-
age" is used.
(CH), (TH), (RH), (UJ): Temperature compensation
(ML): Mylar type
(P.P.): Polypropylene type
REF. NO DESCRIPTION
SW1 POWER
SW2 TIMER/SLEEP
SW3 DOLBY PROLOGIC
SW4 EQUALIZER
SW5 X-BASS
SW6 ENTER
SW7 VOLUME DOWN
SW8 VOLUME UP
FRONT
VIEW
E C B
(S) (G) (D)
(1) (2) (3)
C2878 B
KRA102 M
KRA107 M
KRC102 M
KRC104 M
KRC107 M
KTA1266 GR
KTC3199 GR
2SC535 C
2SD468 C

NOTES ON SCHEMATIC DIAGRAM

POSITION
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
FRONT VIEW
FRONT
VIEW
B C E
(D)(G) (S)
(3) (2) (1)
KV1236Z23F
2SD2012 Y
Figure 11 TYPES OF TRANSISTOR AND LED
– 11 –
• Schematic diagram and Wiring Side of P.W.Board for this
model are subject to change for improvement without prior
notice.
• The indicated voltage in each section is the one measured by
Digital Multimeter between such a section and the chassis
with no signal given.
1. In the tuner section,
( ) indicates AM
< > indicates FM stereo
2. In the main section, VCR1.
3. In the power section, VCR1.
• Parts marked with " " (
maintaining the safety of the set. Be sure to replace these
parts with specified ones for maintaining the safety and
performance of the set.
REF. NO DESCRIPTION
SW9 MEMORY/SET
SW10 TUNING UP
SW11 TUNING DOWN
SW12 TUNER/BAND
SW13 CD/AUX
SW14 VCR-2
SW15 VCR-1
SW23 JOG
FRONT
VIEW
L1154HDB
HT-DP4000
) are important for
POSITION
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
KDV147 C