DOWNLOAD Sharp 37VT-26H (serv.man5) Service Manual ↓ Size: 1.98 MB | Pages: 15 in PDF or view online for FREE

Model
37VT-26H (serv.man5)
Pages
15
Size
1.98 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / CTR / page 63 to page 81
File
37vt-26h-sm5.pdf
Date
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Sharp 37VT-26H (serv.man5) Service Manual ▷ View online

37VT-26H(GY)
74
AUDIO BLOCK DIAGRAM
75
37VT-26H(GY)
DESCRIPTION OF SCHEMATIC DIAGRAM
SAFETY NOTE:
1. DISCONNECT THE AC PLUG FROM THE AC OUTLET
BEFORE REPLACEING PARTS.
2. SEMICONDUCTOR HEAT SINKS SHOULD BE
REGARDED AS POTENTIAL SHOCK HAZARDS
WHEN THE CHASSIS IS OPERATING.
IMPORTANT SAFETY NOTICE:
BE SURE TO USE GENUINE PARTS FOR SECURING THE
SAFETY AND RELIABILITY OF THE SET.
PARTS MARKED WITH  "
å
" (                      ) ARE
IMPORTANT FOR MAINTAINING THE SAFETY OF THE
SET.  BE SURE TO REPLACE THESE PARTS WITH
SPECIFIED ONES FOR MAINTAINING THE SAFETY AND
PERFORMANCE OF THE SET.
SERVICE PRECAUTION:
THE AREA ENCLOSED BY THIS LINE ( 
) IS
DIRECTLY CONNECTED WITH ACMAINS VOLTAGE.
WHEN SERVICING THE AREA, CONNECT AN
ISOLATING TRANSFORMER BETWEEN TV RECEIVER
AC LINE TO ELIMINATE HAZARD OF ELECTRIC SHOCK.
CAUTION:
This circuit diagram is original one,  therefore there may
be a slight difference from yours.
NOTES:
1. The unit of resistance "
Ω
" is omitted.
(K = k
Ω
 = 1000 
Ω
,  M = M
Ω
).
2. All resistors are 1/8 watt, unless otherwise noted.
3. The unit of capacitance "F" is omitted.
(
µ
 = 
µ
F, P = 
µµ
F).
4. The values in parentheses are the ones in the PB mode;
the values without parentheses are the ones in the REC
mode.
VOLTAGE MEASUREMENT CONDITIONS:
1. DC voltages are measured between points indicated and
chassis ground by VTVM, with AC 220 ~ 240V, 50Hz
supplied to unit and all controls are set to normal viewing
picture unless otherwise noted.
2, Voltages are measured with 10000
µ
V B&W or coloour
signal.
WAVEFORM MEASUREMENT CONDITIONS:
10000
µ
V, 87.5% modulated colour bar signal is fed into
tuner.
TV SECTION
VCR SECTION
IMPORTANT SAFETY NOTICE:
BE SURE TO USE GENUINE PARTS FOR SECURING THE
SAFETY AND RELIABILITY OF THE SET.
PARTS MARKED WITH  "
å
" AND PARTS SHADED (IN
BLACK) ARE ESPECIALLY IMPORTANT FOR
MAINTAINING THE SAFETY AND PROTECTING
ABILITY OF THE SET.
BE SURE TO REPLACE THEM WITH PARTS OF
SPECIFIED PART NUMBER.
SAFETY NOTE:
1. DISCONNECT THE AC PLUG FROM THE AC OUTLET
BEFORE REPLACEING PARTS.
2. SEMICONDUCTOR HEAT SINKS SHOULD BE
REGARDED AS POTENTIAL SHOCK HAZARDS
WHEN THE CHASSIS IS OPERATING.
NOTES:
1. The unit of resistance "
Ω
" is omitted.
(K = k
Ω
 = 1000 
Ω
,  M = M
Ω
).
2. All resistors are 1/16 watt, unless otherwise noted.
3. The unit of capacitance "F" is omitted.
(
µ
 = 
µ
F, P = 
µµ
F).
4. The values in parentheses are the ones in the PB mode;
the values without parentheses are the ones in the REC
mode.
VOLTAGE MEASUREMENT CONDITIONS:
1. DC voltages are measured between points indicated and
chassis ground by VTVM, with AC 220 ~ 240V, 50Hz
supplied to unit and all controls are set to normal viewing
picture unless otherwise noted.
2, Voltages are measured with 10000
µ
V B&W or coloour
signal.
WAVEFORM MEASUREMENT CONDITIONS :
10000
µ
V, 87.5% modulated colour bar signal is fed into
tuner.
CAUTION:
This circuit diagram is original one. Therefore there may
be a slight difference from yours.
37VT-26H(GY)
76
56
29
1
28
TB1226DN
40
21
1
20
FX0008GE
4 3
1 2
SAA5254
KA7809P
NJM2230
8
5
1
4
AN3364S
36
17
1
16
M24C08W
24
13
1
12
LC74793
2SA1266
2SC3198
2SC2001
2SA1015
       BASE
    COLLECTOR
EMITTER
2SC2482
2SC3939
       BASE
    COLLECTOR
EMITTER
B
C
E
2SD2586
1 2 3
1 2 3
SE115N
PST600D
KiA7045P
TDA7056A
STRG6653
2SD1944
1 2 3
1
9
TA7348P
1
9
BA7755
1
5
1
5
iX3313CE
NN3572F
1
30
80
51
31
50
100
81
BA6209
1
10
2SC3851
B C E
2SB1117
E C B
1
7
LA7830
iX0037CE
A   K
SOLID STATE DEVICE BASE DIAGRAM
TOP VIEW
SIDE VIEW
77
37VT-26H(GY)
WAVEFORMS
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