Philips ah 7851 service manual

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philips ah 7851 service manual

Extracted text from philips ah 7851 service manual (Ocr-read)


Page 2

MAIN RC. BOARD (COPPER SIDE!

1.0;le LJJ , '

MAIN P.C. BOARD (COMPONENT SIDE)

NOTES:

m mauma

Component screening as shown above is correct, however, on some units:

. R547 was incorrectly screened as R549.

. R303 was incorrectly 51':de as R503.

. R306 was incorrectly screened as 3506.

. 0322 was incorrectly screened with its polarity reversed.

. C154 may not be screened on board, component may be mounted

raised lrom board.

. 8145 not used, bur screening may be present.

.15.

SWITCH BASINGS
(Shown from Copper Side)

A c
OH,VofiEI7 -J.°. 0-1 urns-m

SPKW.A.LH1,YBWI7 ~r « manila-.150:


All has», 'oalilflln -
m uh, Yo arr/rum ---

All i. r» mu

Mme, urr. To wu #.
spa-r. uh. to m: #v.

+ summer-crow
.._ seen-.mnwn
.. «mu-u

Norm

. m 5., mm, un mm In, h: run/n54- *7 mm mm: in. ro mums

Mm,7nmim-<- magnum: U'JuwTLk «>32'rom
W-°'"~~* Arm-:21. Mme... enters...
mm... . . W * "m
um.rm.mn._. uwmzmn gm, MM

F" m mam/and Fl Ian-.1- man Hm I _ *_ mt Dru:
MM. sauna: :3: ..........,...........-° - ....................
Am: iflll- v V
.mw,...m.- .77.... . o

.

8401 slum in FM position
.15.

5601 drawn in $1»de petition

NOTES:
Component screening as shown above is correct, however, on some units:

(2150 was incorreetlv screened as Cl51.

C433 was incorrectly screened as 0443.

R547 was incorrectly weaned as R549.

R303 was incorrectly screened as R503.

R306 was incorrectly screened as R506.

D503 was Incorrectly screened as 0502,

0128 was incorrectly screened with it's location wrong.
0102 basing was incorrectly screened.

02m basing was incorrectly screened.

6322 was incorrectly screened with ix's polarity reversed.
6154 may not be screened on board, component may be
mourmed on oopuer side.

C145 not used, bur screening may be present.

W14 was not screened.

0320 was not screened.

ddwmswepwwe

rP

34:3;

.17.